The CV Series infrared window is designed for fast, hassle-free installation – completed in 5 minutes or less by a single technician.

• No need to remove the panel door
• Requires only one hole with a standard Greenlee® punch
• Instantly grounds to metal enclosures with the patent-pending AutoGround™ process
• Maintains panel arc test ratings up to 63kA when properly installed

Improve Electrical Safety and Inspection Efficiency with the Fluke CV400 Infrared Window

• Significantly reduces NFPA 70E compliance requirements, minimising work permit paperwork
• Enables faster, more comfortable infrared inspections – often without the need for full PPE
• Reduces the risk of arc-flash and electrocution, keeping your personnel safer
• Lowers the time and cost of preventive electrical maintenance
• Rigorously Torture Tested™ to the highest arc blast ratings, including IEEE C37.20.7: 63kA, UL 50/50E/50V, UL1558, IEC60529-1: IP67, IEC 60068, NEMA 4/12, CSA C22.2 NO. 14-13:2012, and CE
• Available with quick-turn or security keyed access for added flexibility

Product Overview: Fluke CV400 95 mm (4 in) Infrared Window

When it comes to electrical panel safety, protecting your workers is the number one priority. The Fluke CV400 Infrared Window is engineered to keep electricians, engineers, and inspectors safe while performing routine inspections and preventive maintenance.

Each Fluke infrared window comes with an identification plate for unique on-site numbering, enabling rapid location confirmation and faster fault repairs.

Looking for a security key access option? See the CV401 IR Window.

The CV Series infrared windows are also available in 50 mm (2 in) and 75 mm (3 in) sizes to suit a range of panel configurations.

Models: Fluke CV400 95 mm (4 in) Infrared Window

Includes:

4 in (95 mm) IR Window
Hand turn door latch
Warranty statement
Fluke IR Windows are complete, assembled and ready for installation

The post Fluke CV400 95 mm (4 in) Infrared Window | Fast Installation & Arc Flash Protection appeared first on rapid-tech.

The CV Series is designed for fast, hassle-free installation, getting you up and running in 5 minutes or less.

• Single technician installation
• One hole required, using a standard Greenlee® punch
• No need to remove the panel door
• Instantly grounds to metal enclosures via the patent-pending AutoGround™ process
• Maintains panel arc test ratings up to 63kA when properly installed

Boost Efficiency with the Fluke CV200 50 mm (2 in) Infrared Window

• Significantly reduces NFPA 70E processes by minimising work permit requirements
• Allows thermal inspections to be carried out with the switchboard door closed, greatly reducing arc-flash and electrocution risks. In many applications, this may reduce PPE requirements compared to opening energised equipment, enabling faster and more comfortable inspections. PPE selection must always align with the site’s risk assessment, AS/NZS 4836 requirements, and the customer’s electrical safety procedures
• Torture Tested™ to the highest arc blast ratings: IEEE C37.20.7: 63 kA Arc tested at KEMA, UL 50/50E/50V, UL1558, IEC60529-1: IP67, IEC 60068, NEMA 4/12, CSA C22.2 NO. 14-13:2012, and CE certified
• Available with quick-turn or security keyed access for added convenience

Product Overview: Fluke CV200 50 mm (2 in) Infrared Window

A company’s most valuable asset isn’t the equipment behind the panel door — it’s the electricians, engineers, and inspectors who put their safety on the line every day. The Fluke CV200 is built with their protection as the top priority.

Every Fluke infrared window comes with an identification plate for unique on-site numbering, enabling rapid location confirmation and faster repairs.

For a security key access option, see the CV201 IR Window.

The CV Series is also available in 75 mm (3 in) and 95 mm (4 in) sizes to suit a range of applications.

Models: Fluke CV200 50 mm (2 in) Infrared Window

Includes:
2 in (50 mm) IR Window
Hand turn door latch
Warranty statement
Fluke IR Windows are complete, assembled and ready for installation

The post Fluke CV200 50 mm (2 in) Infrared Window | Fast Installation & Arc Flash Protection appeared first on rapid-tech.

The post Fluke CV300 75 mm (3 in) Infrared Window | Fast Installation & Arc Flash Protection appeared first on rapid-tech.

The insulation question a power factor test can’t fully answer

A single-frequency power factor or tan delta test at 50 Hz gives you one data point on a transformer’s insulation condition — and on its own, that data point can be misleading. Temperature effects alone can shift a power factor reading enough to mask a genuine moisture problem or hide it behind a result that looks acceptable. Oil sampling has its own blind spot: most of the moisture in a power transformer resides in the solid cellulose insulation, not the oil, so an oil test alone routinely underestimates how wet a transformer actually is.

This is the gap dielectric frequency response (DFR) testing was built to close, and it’s the technology behind the Megger IDAX series. Instead of one measurement at one frequency, DFR sweeps tan delta, power factor and capacitance across a wide frequency range — and because the shape of that curve depends on insulation geometry, moisture content, oil conductivity and temperature, it can be modelled to extract each of those variables individually rather than guessing at them from a single blended number.

How DFR — and the IDAX — actually work

DFR is also known as frequency domain spectroscopy (FDS). Where SFRA (Megger’s separate FRAX series) assesses a transformer’s mechanical integrity by sweeping a signal through the winding at high frequency, DFR assesses insulation condition by measuring capacitance and dissipation factor across a much lower frequency range — typically from around 1 mHz up to 1 kHz. The two tests are frequently confused because both sweep frequency, but they answer entirely different questions about the same asset, and Megger recommends running both as part of a complete transformer diagnostic program.

The IDAX applies advanced curve-fitting against a reference material model to calculate moisture content in solid insulation, oil conductivity at a 25 °C reference temperature, and tan delta/power factor at a 20 °C reference temperature — all from the one DFR sweep. Because the accuracy of that model depends on knowing the actual temperature of the insulation being tested (not the ambient temperature), the IDAX applies Individual Temperature Correction (ITC), a Megger-developed method that translates test data recorded at the transformer’s actual temperature back to the standard reference temperatures for valid, apples-to-apples comparison against other tests and other transformers.

What sets the IDAX apart on measurement speed is a novel combination of time-domain (PDC) and frequency-domain data. Separate reference models are fitted to each data set before they’re transformed and combined, avoiding the artefacts that older combined-method instruments can introduce — and delivering what Megger positions as the fastest full DFR measurement (1 kHz down to 10 µHz) available in the market. In practice, a full transformer DFR test using the IDAX generally runs under 20 minutes; a bushing test typically takes under 5 minutes.

IDAX300, IDAX300S, IDAX322, IDAX350 — which one fits your work

IDAX300 — the compact, entry point to the range: a 3-channel input (red, blue, ground), 3-terminal (generator, measure, guard) instrument with a single ammeter, controlled by an external laptop running the IDAX software.

IDAX300S — identical hardware platform to the IDAX300, but with a second ammeter fitted, enabling two simultaneous measurements. That matters more than it sounds: it lets you test two HV bushings at once, or simultaneously measure both interwinding insulation systems on a three-winding transformer (e.g. CLH and CLT) — no other instrument on the market performs genuinely simultaneous frequency-domain measurement across two channels without sharing a single ammeter (and therefore sacrificing accuracy or time).

IDAX350 — the IDAX300S measurement platform housed in a rugged, waterproof case with an on-board computer, so it can run standalone in the field without a separate laptop, and can also be used to control other compatible Megger instruments.

IDAX322 — purpose-built for low-capacitance test objects. Where the standard IDAX range tops out at 10 V peak on its internal generator (extendable to 200 V peak, or 2 kV with the external VAX020 amplifier), the IDAX322 has a 2 kV / 50 mA peak amplifier built in, giving it the signal-to-noise ratio needed to get meaningful DFR results directly on bushings and current transformers without a separate external amplifier. It carries the same dual-ammeter simultaneous-measurement capability as the IDAX300S.

For lower-capacitance testing on the standard IDAX300/300S/350 platform, Megger’s external VAX020 amplifier extends output to 2 kV, and the VAX220/230 (available on request) extends to 20/30 kV for specialised applications such as XLPE cable water-treeing assessment.

Where DFR and the IDAX fit an Australian testing program

• Power transformer moisture assessment — the primary and most common IDAX application. Moisture accelerates cellulose ageing, lowers the oil’s dielectric strength, and reduces the transformer’s safe loading capability by bringing it closer to bubble inception temperature at a given load. DFR is the only field-practical method that assesses moisture in the solid insulation directly, rather than inferring it from an oil sample.
• Bushing and current transformer condition monitoring — bushing failure is responsible for a disproportionate share of transformer fires and explosive failures, and traditional line-frequency power factor testing can return a false-OK result on a bushing with a real problem. DFR — ideally with the IDAX322 or an IDAX plus VAX020 for the extra signal-to-noise margin — has also proven effective at detecting traces of partial discharge in HV and EHV bushings.
• Cable diagnostics — paired with a VAX220/230 high-voltage amplifier, the IDAX can assess XLPE cable condition and detect water treeing by comparing DFR curves at 25/50/75/100% of service phase-to-ground voltage.
• Industrial dry-out and impregnation monitoring — repeated DFR sweeps at fixed intervals during transformer dry-out, or during impregnation/curing of dry cellulose with resins, give a real-time read on when a process goal (like target dryness) has actually been reached, rather than relying on a fixed time budget.
• Calibration labs and independent test houses offering DFR/moisture assessment as a standalone service alongside SFRA and power factor testing for utility and industrial clients.

Software that gives you an answer, not just a curve

The IDAX software runs an automated test flow and presents results using an easy-to-read “traffic light” system, so a field technician doesn’t need to be a DFR specialist to get a usable read on moisture content, oil conductivity and temperature-corrected power factor. The IDAX DFR method underpins guidance in CIGRE TB 254, TB 414, TB 445 and TB 775, and IEEE C57.152-2013 and C57.161-2018 — the standards utilities and asset managers already reference for transformer diagnostic testing.

For bushing-heavy testing sessions, the optional DFR500 switchbox connects the transformer and all high-side bushings through a single set-up, removing the need for repeated re-connections and ladder climbs between individual bushing tests — controlled from a small, colour-coded switch panel at ground level.

What to check before you order

DFR interpretation depends on accurately recording the insulation temperature at the time of test — for a transformer, that’s the oil or winding temperature, not ambient air temperature — so factor a reliable temperature reference into your test procedure (an optional temperature/humidity meter is available as an accessory). If your scope includes low-capacitance objects like bushings and CTs, confirm whether the IDAX322’s built-in 2 kV amplifier or a standard IDAX plus external VAX020 better fits your kit — the IDAX322 trades a touch of portability for one-box convenience. And if your program also needs mechanical (SFRA) assessment of the same transformers, Megger’s FRAX series is the complementary instrument — DFR and SFRA test different failure modes and are commonly run together, not interchangeably.

Get your IDAX sorted

Rapid-Tech supplies the Megger IDAX300, IDAX300S, IDAX322 and IDAX350 with local support, and can help match the right configuration — including VAX020/220 amplifier and DFR500 switchbox options — to your bushing, transformer and cable testing scope. Request a quote and we’ll get your DFR test set ready for the field.

Technical Specifications

What is dielectric frequency response (DFR) testing? DFR — also called frequency domain spectroscopy (FDS) — is a diagnostic technique that measures a transformer or bushing’s capacitance and dissipation factor (tan delta/power factor) across a wide range of frequencies, typically from around 1 mHz to 1 kHz. Because the shape of the resulting curve depends on insulation geometry, moisture content, oil conductivity and temperature, DFR data can be modelled to calculate each of these factors individually — giving a far more complete insulation assessment than a single-frequency power factor test.

What’s the difference between DFR and SFRA testing? DFR and SFRA are different tests that are often confused because both sweep across frequency. DFR (performed with Megger’s IDAX series) assesses the condition of a transformer’s insulation — moisture content, oil conductivity and dielectric losses. SFRA (performed with Megger’s FRAX series) assesses the mechanical integrity of the core and windings by measuring signal transfer through the winding. The two are complementary and commonly performed together, not as substitutes for each other.

How does the IDAX measure moisture in transformer insulation? The IDAX applies a swept dielectric frequency response signal and fits the resulting capacitance and loss data to a reference material model. Using Individual Temperature Correction (ITC) to translate the reading to a standard reference temperature, this model calculates the moisture content of the solid (cellulose) insulation, the oil’s conductivity, and the temperature-corrected tan delta/power factor — all from one field test, without decommissioning or disassembling the transformer.

What’s the difference between the IDAX300, IDAX300S, IDAX322 and IDAX350? The IDAX300 is a single-ammeter instrument controlled by an external laptop. The IDAX300S adds a second ammeter for simultaneous two-channel measurement. The IDAX350 uses the same dual-ammeter platform as the IDAX300S but is housed in a rugged, waterproof case with a built-in computer for standalone field operation. The IDAX322 shares the dual-ammeter, simultaneous-measurement capability but has a built-in 2 kV amplifier, purpose-built for low-capacitance objects like bushings and current transformers that need a higher test voltage for an adequate signal-to-noise ratio.

Why does bushing testing need a higher voltage DFR instrument? Bushings and current transformers have much lower capacitance than power transformer windings, which makes it harder to achieve a good signal-to-noise ratio at typical DFR test voltages. A higher test voltage — such as the IDAX322’s built-in 2 kV output, or a standard IDAX paired with Megger’s external VAX020 amplifier — improves measurement accuracy on these low-capacitance objects and is generally recommended over standard-voltage DFR testing for bushings and CTs.

The post Megger IDAX Series Insulation Diagnostic Analyser (DFR) appeared first on rapid-tech.

The transformer fault other tests can’t see

A power transformer can pass its power factor test, its turns ratio test and its excitation current test — and still be carrying hidden mechanical damage that takes it out of service months later. Winding deformation from a through-fault. A loose clamping structure after transport. Core movement that only shows up once the unit is re-energised and the vibration starts again. None of these are electrical insulation problems, so the tests built to find insulation problems won’t find them.

This is the gap sweep frequency response analysis (SFRA) was built to close, and it’s why SFRA now sits alongside power factor, turns ratio and winding resistance testing as a standard part of transformer commissioning and condition assessment programs across Australian utilities, substations and industrial sites. If you’re specifying, procuring or running an SFRA program, the Megger FRAX150 and FRAX200 are the instruments most field teams reach for — and for good reason.

How SFRA actually works

The FRAX injects a low-voltage swept sine wave into one end of a transformer winding and measures the response at the other end across a frequency range from 0.1 Hz up to 25–30 MHz (model dependent). Because the transformer behaves as a complex network of resistance, inductance and capacitance, the shape of that response is effectively a fingerprint — unique to the physical geometry of the core, windings, clamping structures and connections.

Compare a fresh fingerprint against a reference trace (taken when the transformer was new, commissioned, or known to be healthy) and deviations jump out: resonance peaks that have shifted, additional resonances that weren’t there before, lost resonance, or an overall change in magnitude. Each of these patterns points toward a specific class of fault — winding deformation and displacement, shorted or open turns, broken clamping structures, core connection problems, core movement, or hoop buckling — long before any of it shows up as an electrical failure.

It’s a comparative test by nature, which is exactly why data discipline matters. A FRAX trace on its own tells you less than a FRAX trace measured against a documented baseline, a sister transformer, or a phase-to-phase comparison. Teams that start collecting fingerprints at commissioning — and standardise how they do it — get far more diagnostic value out of every subsequent sweep.

Built for the field, not just the lab

Where the FRAX series earns its reputation is repeatability. SFRA is acutely sensitive to connection quality — a marginal ground, a different clamp position, or a longer lead run between two test sessions can introduce curve variation that has nothing to do with the transformer itself. Megger’s answer is colour-coded, wide C-clamp connectors with adjustable braided grounds and shielded cabling built to the shortest-braided-ground principle specified in IEC 60076-18 Method 1, so the same connection technique produces the same result regardless of which technician is holding the clamp.

Both instruments also automate the two steps that most commonly compromise SFRA data in the field: grounding and magnetisation. An automatic ground loop detector verifies every connection before a sweep is allowed to run, catching poor grounds before they corrupt a trace rather than after. A built-in demagnetisation circuit clears residual magnetism from the core before testing starts, eliminating the low-frequency shift that magnetised iron would otherwise introduce — and the reason Megger, along with IEEE C57.152, recommends running SFRA before any DC winding resistance test on the same outage.

At the low end, the FRAX series is genuinely field-sized: from 1.8 kg with batteries and roughly 25 x 17 x 5 cm, it travels in a case with the instrument, cables and accessories together. A full sweep with ground check completes in under a minute on the FRAX200, and a two-winding transformer with accessible bushing terminals is typically fully tested — connections included — in around 45 minutes.

FRAX150 vs FRAX200 — which one fits your program

FRAX150 is the mains-operated option with a built-in PC and 12″ high-resolution touchscreen, bright enough to read in direct sunlight, plus the same ground loop detector and cabling technology that defines the range. It’s a strong fit for teams who want a self-contained, no-laptop workflow at the transformer.

FRAX200 is the current-generation performance test set, available as the fully-featured FRAX200 ADV or the streamlined FRAX200 BAS. Both add automatic demagnetisation, USB-C data transfer and charging, and Bluetooth Low Energy connectivity to a laptop or tablet running the FRAX software. The FRAX200 ADV additionally supports the optional FSX200 switchbox, which uses patent-pending active clamps to connect all three phases of a transformer through a single set-up — the leads at the bushing end disconnect electrically once a phase isn’t being measured, removing the influence of unused cabling from the result and cutting out repeated ladder climbs on tall units.

Both models meet IEC 60076-18, IEEE C57.149-2012, CIGRE Technical Brochure 342 and DL/T 911-2004, and both ship with the ground cable, braid sets, C-clamps, connection cables (9 m or 18 m, extendable to 30 m on the FRAX200), a Field Test Box for self-verification, user guide and the Windows FRAX analysis software — included with no licence control and no per-seat annual fee.

Where FRAX earns its place in an Australian testing program

• Substation and utility asset management — building an SFRA fingerprint library across a transformer fleet as part of a condition-based maintenance program, rather than relying purely on time-based replacement schedules.
• Commissioning new transformers — capturing a factory-condition baseline before energisation, and again after transport, to confirm nothing shifted in transit.
• Post-fault and post-fault-current investigation — after a through-fault, short-circuit event or suspected mechanical disturbance, SFRA is one of the fastest ways to confirm (or rule out) internal mechanical damage without opening the tank.
• Renewables and industrial step-up transformers — wind, solar and battery storage projects increasingly specify SFRA at commissioning precisely because these transformers are transported to remote sites and benefit from a documented pre/post-transport comparison.
• Calibration labs and test houses offering SFRA as a service to utility and industrial clients across the eastern seaboard and beyond.

Analysis software that does more than plot a curve

The FRAX software (Windows, included, unlimited seats) presents data as magnitude-versus-frequency, phase-versus-frequency, or impedance/admittance-versus-frequency — useful across different transformer designs. Automated analysis compares two curves algorithmically for amplitude and frequency-shift deviation and flags the result as severe, obvious or light, with pass/fail criteria available for shorted-winding measurements. It also imports and exports data from other manufacturers’ formats (CIGRE, Doble, IEC 60076-18 XML, CSV, TXT), so a fleet with a mixed testing history isn’t locked out of comparative analysis.

What to have in place before you order

SFRA is not a fault detector in isolation — it’s most powerful when you’re comparing today’s trace to a known-good reference. If you’re speccing a FRAX for a new testing program, factor in the time to establish baseline fingerprints across your fleet early, and standardise your connection procedure (tap position, isolation, grounding) so future comparisons are valid. For teams testing low-capacitance objects like bushings or current transformers with a dielectric frequency response (DFR) requirement alongside SFRA, Megger’s IDAX series covers that complementary insulation diagnostic — the two techniques answer different questions about the same asset.

Get your FRAX sorted

Rapid-Tech supplies the Megger FRAX150 and FRAX200 with local support, and can talk through which configuration — cable length, ADV vs BAS, with or without the FSX200 switchbox — matches your fleet and your access conditions. Request a quote and we’ll get your instrument, cables and Field Test Box ready to go.

Technical Specifications

Note: FRAX101 and FRAX99 are shown on Megger’s website as discontinued and are not covered in this content package.

What is sweep frequency response analysis (SFRA) testing? SFRA testing checks the mechanical integrity of a transformer’s core, windings and clamping structures. A low-voltage signal is injected into one end of a winding and the response is measured at the other end across a range of frequencies, producing a unique “fingerprint.” Comparing this fingerprint to a reference trace — from commissioning, a previous test, or a sister transformer — reveals mechanical changes such as winding deformation, core movement or broken clamping structures that other electrical tests typically miss.

What’s the difference between the Megger FRAX150 and FRAX200? The FRAX150 is a mains-powered instrument with a built-in PC and 12″ touchscreen for self-contained field testing. The FRAX200 is Megger’s current-generation platform, available as the ADV or BAS variant, with USB-C, Bluetooth Low Energy, automatic demagnetisation and battery operation, controlled via laptop or tablet. Only the FRAX200 ADV supports the optional FSX200 switchbox for simultaneous three-phase connection.

How long does an SFRA test take on a transformer? Each individual sweep takes a little over 40 seconds on the FRAX series. For a standard two-winding transformer with accessible bushing terminals, a full set of SFRA tests — including making and remaking connections — typically takes around 45 minutes once the unit is isolated. Higher-voltage transformers requiring a manlift for bushing access generally take roughly double that time.

Is SFRA the same as DFR (dielectric frequency response) testing? No. SFRA and DFR both sweep across frequency, but they measure different things. SFRA assesses the mechanical integrity of a transformer’s core and windings by measuring signal transfer through the winding, typically from 20 Hz to 2 MHz. DFR (available on Megger’s IDAX series) measures capacitance and dissipation/power factor to assess insulation condition and moisture content, typically from around 1 mHz to 1 kHz. They answer different diagnostic questions and are often used together as part of a full transformer assessment.

What faults can SFRA detect that other transformer tests miss? SFRA is specifically sensitive to mechanical rather than purely electrical changes, including winding deformation and displacement, shorted or open turns, broken or loose clamping structures, core connection problems, core movement and hoop buckling. Power factor, turns ratio and winding resistance tests can all return normal results on a transformer that has sustained this kind of mechanical damage, which is why SFRA is recommended as a complementary test rather than a replacement for them.

The post FRAX150 & FRAX200 Sweep Frequency Response Analyser (SFRA) appeared first on rapid-tech.

Every maintenance team has a machine like it: a pump or motor that keeps chewing through bearings, seals, and couplings faster than it should. The vibration readings creep up. The energy bill creeps up. And somewhere in the plant, a technician is quietly writing “realign when convenient” on a work order that never quite becomes a priority.

Shaft misalignment is one of the most common — and most preventable — causes of premature failure in rotating equipment. Industry studies routinely attribute a large share of bearing and coupling failures to misalignment that was never properly corrected at commissioning or after a rebuild. The knock-on effects are predictable: increased vibration, elevated shaft and bearing temperatures, seal leakage, higher energy draw from the motor fighting against itself, and unplanned downtime that always seems to land at the worst possible moment.

The traditional fix — dial indicators, string alignment, or older two-laser systems — works, but it’s slow. It demands a skilled operator, careful pre-alignment of the sensor heads, and a fair amount of trial and error before the numbers settle. On a busy shutdown or a call-out where every hour of downtime costs real money, that setup time is the enemy.

A Single Laser Changes the Equation

The Fluke 832 Laser Shaft Alignment Tool takes a different approach. Instead of the conventional two-laser, two-detector arrangement, it uses a single-laser, dual-detector system — one non-adjustable laser and one sensor housing two HD position-sensitive detectors (PSDs) plus MEMS inclinometers. Because there’s only one beam to manage, there’s no laser-to-laser alignment step before you can start measuring. Mount the laser on one shaft, the sensor on the other, and the tool goes straight into live measurement.

That single design decision removes a genuine bottleneck from the workflow. Technicians who’ve used two-laser systems know the frustration of nudging brackets back and forth just to get a beam landing where it needs to for the pre-alignment step to even begin. The Fluke 832 skips that entirely, which matters most when you’re working against the clock on a production line that’s already down.

Once mounted, the system’s Simultaneous Live Move function shows corrections on both the horizontal and vertical planes at the same time, in real time, on the 8-inch tablet display. There’s no switching between views or guessing which plane to fix first — you adjust the shims and feet while watching both numbers converge, with automatic out-of-range notifications if a reading moves outside acceptable limits. Coloured tolerance indicators make it immediately clear whether an alignment is acceptable, marginal, or still needs work, so the call on “good enough to run” isn’t left to guesswork.

Built-In Intelligence for the Tricky Jobs

Not every alignment job is a straightforward coupled-shaft-to-shaft measurement, and the Fluke 832 is built with that reality in mind.

Soft Foot correction identifies and helps resolve one of the most common (and most overlooked) sources of alignment drift — a machine foot that isn’t sitting flat on the baseplate, which can throw off even a technically “correct” alignment the moment the bolts are torqued down. The tool walks through soft foot detection before the main alignment sequence, so it gets caught and corrected rather than fought against later.

The 8-Point Active Clock measurement method takes readings at eight positions around the shaft rotation rather than the usual handful, reducing the error introduced by shaft play or backlash. That translates into more reliable elliptical alignment calculations on couplings that don’t rotate perfectly true — a real-world problem that trips up less capable systems.

For jobs where you can’t rotate the shaft through a full 360°, the Fluke 832 supports static machine and multiple foot-position measurement modes, so uncoupled shafts and limited-rotation equipment are still within scope. And the tool’s Quality Factor and Standard Deviation readouts give a statistical sanity check on the measurement itself, flagging when vibration or shaft movement during the reading might be compromising accuracy — useful confirmation before you sign off on a job.

Reporting That Actually Gets Used

An alignment is only as valuable as the record that proves it happened. The Fluke 832 generates customisable reports from pre-installed full or short templates, or from a layout you build yourself — choosing exactly which data and graphics to include and rearranging sections to match how your team documents work. Asset IDs and measurement data log automatically, and reports can be emailed directly from the field using built-in templates, so the paperwork is done before the tablet goes back in the case.

The tool also includes a built-in ROI calculator that estimates the financial impact of the alignment job — factoring in reduced downtime, extended bearing and coupling life, and improved energy efficiency. For maintenance teams who need to justify spend to management, or contractors who want to show a client exactly what a job was worth, that’s a genuinely practical feature rather than a marketing add-on.

Rugged Enough for the Real Plant Floor

None of this matters if the hardware can’t survive where it’s used. The Fluke 832 tablet and sensor heads are rated IP65 for dust and water-jet resistance, and the tablet is drop-tested to 1.2 metres. Operating temperature range extends from -20 °C to 50 °C on the tablet (-10 °C to 50 °C on the sensor and laser heads), which comfortably covers everything from an air-conditioned server room to an outdoor pump station in an Australian summer.

Battery life is built for a full shift and then some: up to 11 hours on the tablet, 30 hours of continuous use on the sensor, and 40 hours on the laser — all charging over USB-C. Wi-Fi 6, Bluetooth 5.1, and integrated RFID round out the connectivity, letting the system talk to Fluke’s ARC 4.0 software and cloud-based reliability workflows without extra hardware.

Who Reaches for the Fluke 832

This is a tool built for the everyday alignment work that keeps a plant running, not just the once-a-year overhaul. Typical users include:

• Maintenance and reliability engineers doing scheduled alignment checks across pumps, motors, and fans as part of a preventive maintenance program
• Industrial service contractors who need fast setup and clean reporting across multiple sites in a single day
• Plant and facility technicians aligning motor-driven fans, blowers, compressors, and conveyor drives in manufacturing, food and beverage, mining, and oil and gas environments
• OEM service teams commissioning new rotating equipment and needing documented proof of correct alignment

Typical machine pairings include electric motors to pumps, motors to gearboxes, motor-driven fans and blowers, compressors, conveyor drives, and other coupled rotating equipment across standard industrial applications.

Why Rapid-Tech for Your Fluke 832

We stock and support the full range of Fluke condition monitoring and test equipment for Australian trade, industrial, and calibration professionals. Beyond supplying the instrument, we can help you get it into service with genuine Fluke accessories, servicing guidance, and expert advice on choosing the right condition monitoring tool for your specific machinery and application. Get in touch with our team for a quote and any questions about fitting the Fluke 832 into your maintenance program.

Technical Specifications

Fluke 832 Shaft Alignment Tablet

Fluke 832 Sensor

Fluke 832 Laser

Laser safety notice (preserved from manufacturer documentation): Safety precaution: Do not look into laser beam.

What is the Fluke 832 Laser Shaft Alignment Tool? The Fluke 832 is a laser-based shaft alignment system that uses a single non-adjustable laser and a dual-detector sensor to measure and correct horizontal and vertical misalignment on coupled rotating machinery, such as pumps, motors, fans, and gearboxes. It combines an 8-inch rugged tablet, a sensor head, and a laser head to deliver real-time alignment guidance and generate documented reports.

How does a single-laser shaft alignment system work? A single-laser system mounts one laser on a reference shaft and one dual-detector sensor on the shaft being aligned. Because there’s only one beam, the setup skips the pre-alignment step required by traditional two-laser systems, and measurement can begin as soon as both heads are mounted and roughly facing each other.

What does Soft Foot correction do in shaft alignment? Soft Foot correction identifies where a machine’s mounting feet are not making even, flat contact with the baseplate. If left uncorrected, tightening the foot bolts can distort the machine frame and throw off an otherwise accurate shaft alignment, so detecting and correcting it before final alignment is a standard best-practice step.

Is the Fluke 832 suitable for uncoupled or limited-rotation shafts? Yes. The Fluke 832 supports static machine and multiple foot-position measurement modes, allowing alignment on uncoupled shafts or machinery where full 360° rotation isn’t practical.

How rugged is the Fluke 832 for field and industrial use? The tablet, sensor, and laser are all rated IP65 for dust and water-jet resistance, and the tablet is drop-tested to 1.2 metres. Operating temperature range extends to -20 °C to 50 °C on the tablet, suiting both indoor plant environments and outdoor field conditions across Australia.

The post Fluke 832 Laser Shaft Alignment Tool appeared first on rapid-tech.

There’s a particular kind of frustration that comes with knowing something’s wrong inside a system you can’t get eyes on. A gurgling drain that won’t clear with a standard snake. An engine that’s making a noise nobody can diagnose from the outside. A duct run that might be clogged with years of dust, or might not be — and the only way to find out used to mean cutting a hole, pulling a panel, or calling in a specialist just to have a look.

For electricians, mechanics, HVAC techs, and maintenance crews across Australia, that kind of guesswork costs time and money. Every unnecessary teardown is billable hours lost to a job that a five-minute camera inspection could have avoided. And when the fault genuinely is buried deep in a pipe, a bore, or a piece of machinery, the wrong tool means you’re back to square one — probe too thick to fit, cable too short to reach, image too dark or too blurry to actually tell you anything useful.

This is exactly the gap the Coantec M40 videoscope is built to close.

A Purpose-Built Tool for Confined-Space Inspection

The M40 is an industrial-grade videoscope — sometimes called a borescope or inspection camera — designed around a 6mm-diameter probe that’s slim enough to slip into narrow bores, pipework, and mechanical assemblies most standard cameras can’t reach. Rather than being a single fixed unit, the M40 uses a modular probe system, which is why it’s sold as a variable product across four cable lengths: 1.5m, 3m, 5m, and 10m. You choose the reach your job actually needs, without paying for cable length that’s just going to sit coiled on the bench.

At the core of every M40-60 series probe is a 2-megapixel (1920×1080) image sensor paired with 10–100mm short-focus optics and an 85° field of view — Coantec’s 6mm tube is also offered with a longer 15mm-to-infinity focus range and a wider 120° FOV, but the M40-6015/6030/6050/6100 SKUs are specifically the short-focus, 85° configuration, tuned for close-in work. That’s the kind of inspection where the probe tip is going to be sitting just centimetres from the surface you’re examining, whether that’s the inside wall of a pipe, a weld seam, or an internal engine component — and the 85° field of view means you’re not just seeing a pinhole of detail directly ahead, but enough context around the point of interest to orient yourself inside the cavity. A fixed LED at the probe tip lights the inspection point directly, so you’re not relying on ambient light inside a dark pipe or cavity.

All of that image data feeds back to a handheld unit built around a 5-inch HD touchscreen (800×480 resolution), so you’re reviewing footage on a proper screen in real time — not squinting at a phone held awkwardly next to a pipe opening. The controller supports 4× digital zoom during live inspection, with still images able to be zoomed up to 5× afterwards to check fine detail, plus 90°/180°/270° image flip. A built-in tracking cross-cursor with scale also lets you take rough on-screen measurements of what you’re looking at, rather than just eyeballing it. None of that sounds dramatic until you’re on a job where the inspection point doesn’t present itself “the right way up” — being able to flip the image and measure a gap or a crack on the spot saves you repositioning the probe just to get your bearings.

Built for the Conditions You Actually Work In

Confined-space inspection rarely happens in clean, dry conditions. Pipes are wet. Engine bays are oily. Drains are, well, drains. The M40’s probe carries an IP67 ingress protection rating, so it’s built to shrug off moisture, dust, and oil contamination, and to tolerate brief accidental immersion — the kind of wet, grimy conditions plumbing, drainage, and mechanical inspection work actually involves. The tube itself is a tungsten-wire-braided, wear-resisting sheath, so it’s built to be dragged through rough bores and tight bends repeatedly without the outer casing giving out. The probe tip is also rated to handle temperatures from -20°C to 70°C, so it copes with genuinely hot inspection points — a warm engine bay or duct run — not just room-temperature pipework.

On the handheld unit itself, a high-strength aluminium alloy quick-release probe connector is engineered for improved heat dissipation — Coantec states roughly triple the heat dissipation efficiency of a standard connector — which supports more stable performance if you’re running the unit continuously across a full day of inspections rather than short bursts. The main unit weighs approximately 0.89kg including base and battery, which keeps it manageable for one-handed operation and extended handheld use without the fatigue that comes from a heavier, bulkier inspection camera. The handheld unit itself is designed for a -10°C to 50°C operating range, with 15–90% relative humidity tolerance — comfortable across most Australian workshop and site conditions.

Power comes from a built-in, replaceable 5000mAh lithium battery rated for 4+ hours of continuous use — enough to get through a typical inspection run without a mid-job recharge, and with the option to carry a spare battery for back-to-back jobs. Charging is via Type-C (which also handles data transfer to a PC), and the unit also outputs to Mini-HDMI if you want to run footage to an external monitor for a client or a larger crew to see. A quick-release magnetic base is also included, letting you set the handheld unit down on any ferrous surface — a vehicle chassis, a steel frame, a machine housing — so you’ve got both hands free to manoeuvre the probe itself, which matters a lot more than it might sound like on paper once you’re actually threading a probe through a tight bend.

Documentation That Actually Holds Up

An inspection is only as useful as the record you can produce afterwards. The M40 captures photos and video in JPEG, BMP, and MP4 formats, with support for on-screen annotation and time stamps, and switchable colour, black-and-white, or negative-film display modes plus 0–9 level brightness adjustment for awkward lighting inside a cavity. Footage is saved to 32GB of internal storage, backed up by an 8GB TF card supplied in the box (32GB cards available as an optional upgrade), so you’re not stuck juggling files off a nearly-full memory card mid-job. That means you can mark up exactly where a defect sits, note the time of capture, and hand over footage or stills that stand up as evidence — whether that’s for a compliance report, a warranty claim, an insurance assessment, or simply proving to a customer that the blockage really was as bad as you said it was. More than ten system languages are supported on the interface, which is a practical plus for multi-technician teams or training environments where not everyone’s first language is English.

What’s in the Box

Every M40-60 series unit ships as a complete kit, not just a bare probe: a standard hard instrument case, the handheld unit with battery installed, the quick-release magnetic base, an 8GB TF card, a card reader, and a Type-C charging cable with adaptor for direct charging. If your job calls for it, a non-magnetic base, an HDMI cable, and a 32GB TF card upgrade are all available as optional extras — worth asking about at the time of quote if you know you’ll need them.

Choosing Your Cable Length

Because the M40-60 series is built around a common 6mm probe head, 2MP sensor, and 85° field of view, the decision that actually matters is reach:

• M40-6015 (1.5m cable) — suited to shorter-run inspections: small appliance internals, compact machinery, shallow drain runs, and bench-based diagnostic work where you don’t need a long lead getting in your way.
• M40-6030 (3m cable) — a practical mid-length option for general trade use: engine bays, HVAC ducting sections, standard domestic and light commercial plumbing runs.
• M40-6050 (5m cable) — built for longer horizontal runs and multi-storey access, such as extended drainage lines, longer HVAC duct sections, and larger plant or vessel inspections.
• M40-6100 (10m cable) — the long-reach option for extended pipeline runs, deep bore inspection, underground drainage, and industrial plant work where the inspection point is simply a long way from where you can stand.

All four share the same 10–100mm short-focus optics, 85° FOV, and 2-megapixel imaging, so the footage quality and close-up detail is consistent regardless of which cable length the job calls for — you’re only trading off on reach, not image performance.

Where the M40 Earns Its Keep

Coantec’s own application notes for the M40 series span aerospace component inspection, automotive engine and transmission diagnostics, power generation (boiler pipelines, heat exchangers, transformer oil tanks, wind turbine gearboxes), petrochemical pipeline and tank inspection, rail transit component checks, construction inspection of drainage and ventilation systems, pressure vessel and boiler safety assessment, and technical education and training use. For most Australian trade and maintenance customers, that translates to more everyday jobs: drain and plumbing diagnostics, HVAC duct inspection, automotive and small engine diagnostics, and general mechanical or structural inspection where getting eyes inside a cavity beats guessing from the outside.

Backed by Rapid-Tech

Buying an inspection camera sight-unseen from an overseas marketplace listing means you’re on your own if something doesn’t work as expected, or if you’re not sure which cable length actually suits your job. Rapid-Tech stocks the M40-60 series locally, can talk you through which variant fits your application before you commit, and is on hand for support after the sale — not just at the point of purchase. If you need a quote, or you’re not sure whether the 3m or 5m cable is the right call for your job, get in touch and we’ll help you get the right kit sorted the first time.

TECHNICAL SPECIFICATIONS

Cable Length Variants

What is the Coantec M40 videoscope used for? The Coantec M40 is an industrial videoscope (borescope) used to visually inspect the inside of pipes, ducting, engine components, and other confined spaces that can’t be accessed directly. It’s used across plumbing and drainage, HVAC, automotive and small engine diagnostics, and industrial maintenance for tasks like locating blockages, checking weld seams, and diagnosing internal faults without dismantling equipment.

Is the Coantec M40 probe waterproof? The M40 probe carries an IP67 ingress protection rating, meaning it’s protected against dust and moisture and can tolerate brief accidental immersion — suitable for wet, oily, and dusty inspection environments such as drainage lines and damp pipework. It is not rated for continuous or deep underwater use.

What’s the difference between the M40-6015, M40-6030, M40-6050, and M40-6100? All four share the same 6mm probe diameter, 2-megapixel sensor, 10–100mm short-focus optics, and 85° field of view. The only difference is cable length: 1.5m, 3m, 5m, and 10m respectively. Choose based on how far the inspection point is from where you’ll be standing or operating the handheld unit.

How far can the M40 probe reach? Reach depends on the SKU selected. The M40-6015 offers 1.5m, the M40-6030 offers 3m, the M40-6050 offers 5m, and the M40-6100 offers 10m of probe cable — covering everything from short bench-based diagnostics to long pipeline and bore inspection runs.

Can the M40 probe bend around corners? Yes. The probe supports 360° omnidirectional articulation via mechanical control, allowing it to be manoeuvred around bends and through cavities rather than only travelling in a straight line.

Does the M40 record video and photos? Yes. It captures photos and video in JPEG, BMP, and MP4 formats, with on-screen time stamping and annotation support for documentation and reporting purposes.

How long does the M40 battery last? The built-in 5000mAh lithium battery provides 4 or more hours of continuous use per charge, and the battery is replaceable for extended field use.

What temperature range can the M40 probe handle? The probe tip is rated from -20°C to 70°C, so it can be used on genuinely hot inspection points such as an engine bay or duct run, not just room-temperature pipework. The handheld unit itself is rated for -10°C to 50°C operating conditions and 15–90% relative humidity.

What’s included when you buy the Coantec M40? Each unit ships as a complete kit: hard instrument case, handheld unit with battery, quick-release magnetic base, 8GB TF card, card reader, and a Type-C charging cable with adaptor. A non-magnetic base, HDMI cable, and 32GB TF card are available as optional extras.

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When “does that feel hotter to you?” isn’t good enough

If you work in sports science, physiotherapy, veterinary care, or applied research, you already know the limits of assessing skin temperature by touch or guesswork. Inflammation, muscle overload, circulatory issues, and early-stage injury often show up as subtle temperature shifts — sometimes less than a degree — well before pain, swelling, or a scan confirms anything. By the time it’s obvious to the naked eye or a fingertip, the athlete has usually already missed the window where a quiet adjustment to load or recovery would have prevented a bigger problem.

The trouble is that most thermal cameras on the market are built for the wrong job. Electrical and building-inspection thermal cameras are tuned for a huge dynamic range — think −20°C to 650°C — because they’re hunting for overheating breakers and missing insulation. That wide range comes at a cost: precision within the narrow band that actually matters for skin work gets diluted. A general-purpose thermal camera might tell you a knee is “warmer” than the other one. It won’t reliably tell you it’s 0.6°C warmer, and in skin-surface assessment, that’s often the number that matters.

Built for skin, not switchboards

The HIKMICRO M31T takes a different approach. Rather than adapting an electrical inspection camera for medical and sports use, HIKMICRO developed it in direct partnership with ThermoHuman — a Spanish sports-medicine technology company whose software is already used by thermography-trained health and performance professionals. The brief was narrow and deliberate: build a camera that measures living skin surfaces accurately, repeatably, and at a price point that puts proper thermography within reach of clinics and sports science departments that couldn’t previously justify the cost of specialist medical thermal imaging equipment.

That focus shows up directly in the spec sheet. The M31T’s object temperature range is locked to 5°C–40°C — deliberately narrower than its electrical-inspection siblings — because that’s the band human and animal skin actually occupies. Within that band, it holds accuracy to a maximum of ±0.5°C (ambient 15°C–35°C), roughly four times tighter than the ±2°C typically quoted on general-purpose industrial thermal cameras. For practitioners tracking subtle asymmetry between left and right limbs, or monitoring a recovery trend over weeks, that precision is the difference between a useful dataset and a shrug.

What’s under the hood

The thermal side runs a 384×288 (110,592-pixel) detector with HIKMICRO’s SuperIR processing scaling captured images up to 768×576 for sharper detail when you’re reviewing a scan later. NETD is rated below 35 mK at 25°C, so the sensor is sensitive enough to pick up the kind of fine temperature gradients that separate healthy tissue from an inflamed or overloaded area. A 6.4 mm F1.0 lens delivers a 41.1° × 30.5° field of view and focuses down to just 0.1 m — close enough for detailed work on smaller areas like hands, ankles, or a horse’s fetlock, without losing the wider view needed for a full-limb or full-body scan.

Alongside the thermal detector sits an 8MP visual camera, giving you Thermal, Visual, Fusion, Picture-in-Picture, and Blending modes on the same 3.5″ touchscreen. Fusion and PIP modes matter more here than they might on an electrical inspection job — being able to overlay the thermal read directly onto the visible anatomy makes it far easier to document exactly where an asymmetry sits and to explain findings to a client, athlete, or referring practitioner without them needing to interpret a colour gradient in isolation.

Measurement tools cover centre spot, hot spot, and cold spot readings, plus up to 10 user-definable spots, a line, five rectangles, and five circles — enough to build a repeatable protocol across a session (left knee, right knee, lumbar region, and so on) rather than hunting for a single reading each time. Auto, manual, and 1-tap level-and-span modes on the touchscreen let you sharpen contrast on the fly when you need to isolate a specific temperature band.

Built to survive a clinic, a pitch, or a paddock — not just a lab

A camera that lives in a kit bag between a clinic, a training ground, and an equine yard needs to hold up. The M31T is IP54-rated against dust and water ingress and drop-tested to 2 m, with vibration and shock ratings (2g / 25g) that sit above its electrical-inspection siblings in the same M-Series family — a sign it’s built with more field handling in mind. Two interchangeable, rechargeable Li-ion batteries and a charging base come standard, giving you a spare ready to go rather than waiting out a charge cycle mid-session. Wi-Fi (802.11 b/g/n) and Bluetooth 4.2 connect to the HIKMICRO Viewer app for transferring images and building reports on the spot, and a 64GB microSD card (expandable) handles image and radiometric video storage — HIKMICRO rates the card for roughly 100,000 stills or up to 400 hours of standard video.

Voice notes (up to 60 seconds), text notes (up to 200 characters), QR codes, picture notes, tags, and sketches all attach directly to a capture, so a scan doesn’t end up as an orphaned image file with no context by the time you’re writing up a report a week later.

What’s in the box

Every M31T ships with the camera, a wrist strap, two interchangeable batteries, a 64GB microSD card, a charging base with UK/US/AU/EU adaptor plugs, a 2-in-1 USB-C cable, a hard carrying case, a factory calibration certificate, and a quick start guide — everything needed to start scanning on day one, with nothing extra to track down.

Who reaches for the M31T

• Sports scientists and strength & conditioning staff tracking load-related asymmetry and flagging overuse risk before it becomes an injury
• Physiotherapists and allied health practitioners documenting inflammation patterns and recovery progress with objective, repeatable imagery rather than a verbal description
• Veterinary and equine professionals screening for lameness, saddle-fit issues, and soft-tissue strain across a horse or working animal’s limbs and back
• Researchers and university departments running thermography-based studies where consistent, well-documented capture protocols matter for data integrity

Backed by a 3-year warranty

HIKMICRO backs the M31T with a 3-year warranty on the full product, 10 years on the detector, and 2 years on the battery — the same structure HIKMICRO applies across its professional M-Series line, reflecting confidence in the core thermal module even as accessories wear over time.

If you’re weighing up whether the M31T’s tight 5°C–40°C precision fits your workflow, or whether a wider-range M-Series camera suits your application better, get in touch with the RT team — we’ll help you match the right thermal camera to the job rather than the other way around.

Technical Specifications

What is the HIKMICRO M31T used for? The HIKMICRO M31T is a handheld thermal imaging camera purpose-built for measuring human and animal skin-surface temperature. It was co-developed with sports-medicine technology company ThermoHuman for use by sports scientists, physiotherapists, researchers, and veterinary professionals tracking temperature asymmetry, inflammation, and recovery.

How accurate is the HIKMICRO M31T? The M31T measures to a maximum accuracy of ±0.5°C within an ambient temperature range of 15°C to 35°C, across an object temperature range of 5°C to 40°C — a tighter tolerance than general-purpose industrial thermal cameras, which typically quote ±2°C.

Can the HIKMICRO M31T be used for electrical or industrial inspection? No. The M31T’s object temperature range is fixed at 5°C to 40°C, which suits human and animal skin-surface work but doesn’t cover the higher ranges needed for electrical fault-finding or industrial hotspot detection. For that application, HIKMICRO’s M30, M31, or M60 cameras (with ranges up to 650°C) are the better fit.

What’s included with the HIKMICRO M31T? The M31T ships with the camera, a wrist strap, two interchangeable batteries, a 64GB microSD card, a charging base with UK/US/AU/EU plug adaptors, a USB-C cable, a hard carrying case, a factory calibration certificate, and a quick start guide.

Is the HIKMICRO M31T a medical device? The M31T is positioned by HIKMICRO and ThermoHuman as a research and screening tool for sports science, physiotherapy, and veterinary professionals rather than a diagnostic medical device. Check with RT for current regulatory guidance relevant to your specific use case.

The post HIKMICRO M31T Skin Temperature Thermal Camera appeared first on rapid-tech.

Two things have happened to power electronics test benches over the last few years, and neither of them has been kind to the equipment already sitting in the rack.

The first is voltage. EV platforms have moved to 800 V architectures. Utility-scale PV strings and battery energy storage systems routinely sit at 1500 V DC and climb from there. Most precision power analysers on the market top out at 1000 V direct input, which means the moment your DC bus exceeds that, you’re bolting an external voltage divider onto the front of the instrument. That divider brings its own amplitude error, its own phase shift, its own temperature coefficient — and every one of those errors stacks on top of the analyser’s own uncertainty. You end up quoting an efficiency figure to three decimal places that your measurement chain can’t actually support.

The second is channel count. A dual-inverter e-Axle needs DC bus, two three-phase AC outputs, and mechanical power from two motors — measured simultaneously, on the same time base. A multi-string PCS needs a measurement point per string plus the grid side. Meanwhile the rack itself hasn’t grown. Every rack unit an instrument occupies is a rack unit unavailable to the power supply, the load bank, or the ScopeCorder.

The Yokogawa WT1500 Precision Power Analyzer was designed around both problems at once.

What the WT1500 actually does differently

Released in August 2026, the WT1500 is the newest member of the WT series and the first to offer 2000 V direct input. It sits in a 2U (approximately 88 mm) JIS/EIA rack-mount chassis, and inside that chassis you can fit up to four power measurement elements and up to four motor evaluation channels.

The headline number is ±0.038% total power accuracy at DC and at 50/60 Hz. That figure is the sum of the two accuracy terms Yokogawa specifies: ±0.018% of reading plus ±0.02% of range. Read that way it tells you something useful — the range term dominates when your signal sits low in the range, so range selection still matters, but at or near full range you’re working with a genuinely reference-class instrument. For context, within Yokogawa’s own line-up the WT1500 is specified tighter at DC than both the WT5000 (±0.07%) and the WT1800R (±0.1%).

Low power factor performance is where efficiency measurements usually fall apart, and the WT1500 holds ±0.07% of apparent power at 50/60 Hz with a power factor of zero. That’s the specification that governs no-load inverter testing and standby loss measurement, where the active power component is a small fraction of the apparent power flowing.

Choose your elements: high voltage or wide bandwidth

The WT1500 doesn’t force a single compromise on you. Each input element is specified at order time as one of two types, and you can mix them freely within one chassis.

HV (High Voltage) elements take direct measurements up to 2000 V, with voltage ranges of 6 / 15 / 30 / 60 / 150 / 300 / 600 / 1000 / 2000 V at crest factor 3. Frequency band runs DC to 300 kHz typical. This is the element for battery packs, DC links, PV strings and ESS DC buses.

WB (Wide Bandwidth) elements cover ranges to 1000 V with a DC to 2 MHz typical frequency band. This is the element for SiC and GaN converter work, fast-switching inverter stages, and anywhere the harmonic content of the switching waveform genuinely matters to your loss budget.

A typical PCS evaluation configuration might be three WB elements and one HV element — three-phase AC on the wideband inputs, high-voltage DC on the HV input, in a single 2U box. That combination is ordered as a WT1504-10-WB3-HV1.

Both element types share the same acquisition front end: 16-bit resolution, 2.5 MS/s sample rate, with voltage and current converted simultaneously so there’s no inter-channel skew to correct for.

Built for the rack, not the bench

Where the WT1500 separates itself from general-purpose power analysers is in how it expects to be operated — which is to say, mostly not by hand.

The front panel carries a small 2.9-inch monochrome LCD and a handful of control keys. That’s deliberate. Real operation happens through the built-in web server (browser-based control and monitoring over Ethernet), through the free WTViewerEfree PC software, or through direct communication commands over Ethernet or USB. If you do want a local display, a USB-C port drives an external monitor at 1280 × 720, and connecting a touchscreen gives you full touch control of the menus.

For data out, the instrument speaks the languages an automated test system actually uses:

• CAN / CAN FD (the /CN1 option) streams measurement data straight onto the vehicle bus at each update interval — up to 512 items depending on bit rate — for direct integration with ECU and control systems.
• Low-latency UDP provides continuous real-time measurement data for closed-loop control and fast anomaly detection.
• Modbus/TCP server suits long-duration monitoring on industrial pump and fan rigs.
• IEEE 1588 (PTP v2) time synchronisation timestamps WT1500 data against compatible instruments — including the SL2000 ScopeCorder — to roughly ±10 µs, so power values and captured waveforms line up on one timeline.
• Standard Ethernet services include VXI-11, Socket, HiSLIP, FTP and web server over 1000BASE-T.

Auto-setup functions handle production-line signal variation without an operator standing over the instrument: 10 ms data updates, automatic frequency tracking, adaptive filtering, and measurement down to 0.1 Hz.

Twenty channels when four isn’t enough

When one chassis runs out of inputs, the /SY1 multi-unit synchronisation option links up to four sub-units to a main unit over optical fibre (SFP transceivers, up to 300 m). That gives you 20 power channels and 20 motor channels in one synchronised system, with ±400 ns synchronisation accuracy between units.

Critically, it behaves as one instrument. The main unit configures ranges, filters, scaling and wiring on every sub-unit, collects all normal and harmonic measurement values plus compressed waveform data, and saves the whole system’s setup in a single file. Data from sub-units feeds directly into the main unit’s efficiency calculations and user-defined computations.

Please note: Yokogawa has stated the /SY1 option will be released later, and can be added to a purchased unit via an option upgrade licence. If multi-unit synchronisation is on your critical path, talk to us about current availability before you commit to a delivery date.

Motor evaluation — encoder and resolver, mixed freely

Five motor evaluation options are available, and you select one at order time:

The instrument computes rotating speed, torque, synchronous speed, slip and motor output alongside the electrical measurements. Resolver channels carry a 1 MHz typical bandwidth on the carrier, sine and cosine inputs, with electrical angle measurement error of ±0.1° typical and a maximum display of 150,000 rpm. Built-in Ld/Lq calculations support vector analysis of permanent magnet synchronous motors.

Because encoder and resolver channels can be mixed in one instrument, a test cell running two different motor types doesn’t need two different analysers.

Where it earns its keep

Power conditioning systems and energy storage. Multi-string PCS architectures above 1500 V need many measurement points at high accuracy. The 2000 V HV element removes the external divider from the chain, and multi-unit synchronisation scales the channel count to match the string count.

Data centre and EV fast-charger power supplies. AC/DC conversion efficiency measured input-to-output in a single unit, with the WT1500 holding specification across 1% to 130% of range — which matters when the load is dynamic rather than steady-state.

EV powertrain and e-Axle efficiency. Simultaneous DC, three-phase AC, torque and speed acquisition across multiple power paths, with results streamed onto CAN FD for the control system.

Industrial motor duration testing. Long-term watt-hour and ampere-hour integration on inverter-driven pumps and fans, monitored over Modbus/TCP.

Ordering the WT1500 — and the part people get wrong

The WT1500 is a configured instrument, not a shelf item, and the model code carries real consequences. You select the number of elements (WT1501-10 through WT1504-10), the HV/WB split within those elements, the installation type (-BN benchtop, -RE EIA rack, -RJ JIS rack), menu language, power cord, and then the additional options: /M1 32 GB memory, one motor evaluation option, /SY1, and /CN1.

The single most important thing to understand before you order: the WT1500 has no direct current input. All current measurement is made through a Yokogawa current sensor or clamp probe, and those are sold separately. The instrument provides sensor power and supports automatic sensor recognition with ratio and phase compensation for compatible models, but the sensor itself is a separate line on the order. Sensor options run from the CT60 (60 A peak, DC to 800 kHz) through the CT1000A and CT1000S split-core (1000 A) to the CT2000A (2000 A RMS), plus AC clamp probes. Getting this wrong is the difference between an instrument that works on day one and one that sits in its box.

For Australian sites, specify the -R (AS Standard) power cord. And if you’re measuring above 1000 V on an HV element, you’ll need the 758932 high-voltage safety terminal adapter set together with appropriately rated cable.

Why buy your WT1500 through us

We supply and support Yokogawa test and measurement equipment to Australian labs, OEMs and production facilities, and we’ll work through the model and suffix code with you before anything is ordered — element mix, motor option, rack format, sensor selection and cable set — so the instrument that arrives is the one your test plan actually needs.

Every instrument ships with the manufacturer’s calibration certificate, and we can arrange ongoing calibration through our service partners. Our team can talk through channel-count planning, sensor pairing, and integration questions with people who’ve configured these systems before.

Request a configuration and quote below, or send through your measurement points and we’ll come back with a recommended model code.

Technical Specifications

Manufacturer safety and compliance caveats (reproduced as published)

“This product is classified as Class A (for use in industrial environments). Operation of this product in a residential area may cause radio interference, in which case the user will be required to correct the interference.”

“Due to the nature of this product, it is possible to touch its metal parts. There is a risk of electric shock – use this product with caution.”

“Before operating the product, read the user’s manual thoroughly for proper and safe operation.”

Do not use the WT1500 for measurements in Measurement Category IV.

What is the Yokogawa WT1500? The Yokogawa WT1500 is a precision power analyser released in August 2026 as the newest member of Yokogawa’s WT series. It measures up to four power channels and four motor channels in a 2U rack-mount chassis, with ±0.038% power accuracy at DC and 50/60 Hz and the series’ first 2000 V direct voltage input.

How accurate is the WT1500 power analyser? The WT1500 is specified at ±(0.018% of reading + 0.02% of range) for active power at both DC and 50/60 Hz — a total of ±0.038%. At 50/60 Hz with a power factor of zero, accuracy is ±0.07% of apparent power. Current sensor accuracy is added on top of these figures.

Can the WT1500 measure 1500 V DC directly? Yes. Fitted with an HV (High Voltage) element, the WT1500 measures up to 2000 V directly, with a dedicated 2000 V range. It is rated 1500 V DC CAT II on the HV voltage input terminals. For measurements above 1000 V, Yokogawa requires the 758932 high-voltage safety terminal adapter set and appropriately rated cable.

What is the difference between the HV and WB elements? HV (High Voltage) elements measure up to 2000 V with a DC to 300 kHz typical bandwidth. WB (Wide Bandwidth) elements measure up to 1000 V with a DC to 2 MHz typical bandwidth. Both types can be mixed within a single WT1500 chassis — for example, three WB elements plus one HV element for a PCS evaluation.

Does the WT1500 have a direct current input? No. All current measurement on the WT1500 is made through an external Yokogawa current sensor or clamp probe, which is sold separately. The instrument supplies sensor power and automatically recognises compatible sensors, applying the correct ratio and phase compensation.

How many channels can a WT1500 system measure? A single WT1500 chassis supports up to four power channels and four motor channels. With the /SY1 multi-unit synchronisation option, one main unit and up to four sub-units connected over optical fibre form a single 20-power-channel, 20-motor-channel system with ±400 ns synchronisation accuracy.

How does the WT1500 compare to the WT5000 and WT1800R? The WT5000 offers the most elements (7) and the WT1800R six, but the WT1500 is specified tighter for DC power accuracy at ±0.038%, against ±0.07% for the WT5000 and ±0.1% for the WT1800R. The WT1500 is also the only one of the three with 2000 V direct input, and it fits four channels into 2U. The WT5000 and WT1800R offer direct current input; the WT1500 requires external current sensors.

Which motor evaluation option should I choose? Choose /EM1 for up to two encoder-based motors, /RM1 for one resolver-based motor, /EM2 for up to four encoder motors, /RM2 for up to two resolver motors, or /EM1RM1 to mix two encoder motors with one resolver motor. Only one motor evaluation option can be fitted per instrument, and it is selected at order time.

Is the WT1500 suitable for use in Australia? Yes. The WT1500 accepts 220–240 VAC at 50 Hz and is ordered with the -R (AS Standard) power cord option for Australian sites. Yokogawa’s specifications cite the EMC Regulatory Arrangement in Australia and New Zealand, EN 61326-1 Class A Group 1. As a Class A instrument it is intended for industrial environments.

What does the WT1500 model code mean? The model number gives the element count (WT1501-10 = one element, through WT1504-10 = four). The first suffix gives the element mix, e.g. -WB3-HV1 means three wideband and one high-voltage element. Then comes installation type (-BN benchtop, -RE EIA rack, -RJ JIS rack), menu language (-HE, -HC, -HG), power cord (-R for Australia), and finally additional options such as /M1, /EM2, /SY1 and /CN1.

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Every standby power system — from a substation battery bank to a data centre UPS string — is only as reliable as its weakest cell. The trouble is, a battery can look perfectly healthy on a float voltage reading and still fail catastrophically the moment it’s asked to do its actual job: carry the load during a mains outage. Voltage readings, impedance checks, and visual inspections all have their place, but none of them tell you the one thing that actually matters in an emergency — how much usable capacity is really left in the bank.

That’s the gap a discharge test closes. It’s the only test method that puts a real load on the battery and measures how it performs under the conditions it was bought for. For electrical contractors managing customer standby systems, utility maintenance crews running NERC- or AS/NZS-aligned test programmes, and facility managers responsible for keeping critical infrastructure powered through an outage, a discharge test isn’t a nice-to-have — it’s the evidence that a battery system will actually do its job when everything else has already failed.

The catch has traditionally been logistics. Taking a battery bank offline to discharge-test it means finding a backup, scheduling downtime, and accepting risk exposure while the primary battery system is disconnected. For sites where the battery bank protects live switchgear, telecom infrastructure, or a data hall, that’s often simply not an option.

What the TORKEL900 series actually does

The TORKEL900 series is Megger’s fourth-generation battery discharge test system, built to solve exactly that problem. Rather than requiring the battery to be pulled from service, the TORKEL900 connects directly to the battery bank in place and applies a controlled, regulated discharge — using a DC clamp-on ammeter to measure and hold current at whatever level you set. As the test runs, you watch the voltage curve in real time on the unit’s 7-inch touchscreen, and if the voltage drops toward the point where deep discharge becomes a risk, the TORKEL issues an alarm, and ultimately shuts the test down automatically to protect the battery.

Three load-regulation modes are available depending on how you want to profile the test: constant current, constant power, constant resistance, or a pre-selected load profile that mimics a real duty cycle. That flexibility matters because different battery types and different applications call for different test regimes — a telecom rectifier string being tested against its actual load profile is a very different job to a straightforward capacity check on a switchgear trip battery.

Because the unit works with the battery connected and in service, plus- or minus-grounded, or free-floating systems are all supported without extra rigging. Results — voltage, current, capacity, and time — are logged internally and can be pulled off via USB stick or Ethernet for reporting on a PC using the included TORKEL Viewer software (930/950) or PowerDB.

Safety is built into every layer of the design. Blocked-airflow detection prevents the unit from overheating mid-test, the enclosure and connections are designed to be spark-free, and a physical emergency stop is within reach of the operator at all times. For technicians working around live DC battery plant — often at voltages and currents that don’t forgive carelessness — that’s not a footnote, it’s the difference between a routine maintenance task and an incident report.

Faster testing through higher discharge capacity

One of the practical frustrations with older discharge testing gear is how long a proper capacity test takes. The TORKEL900 series addresses this head-on with a high discharge capacity — up to 220 A per unit — which shortens the time needed to pull a meaningful capacity result out of a large battery bank. If a single unit’s current ceiling isn’t enough for the bank you’re testing, two or more TORKEL units, or Megger’s TXL extra load units, can be linked together to push the total discharge current higher still, without needing a second, separate test rig.

Turning it into a complete cell-monitoring system

On its own, the TORKEL900 gives you total bank current, voltage, and capacity. Connect Megger’s BVM (Battery Voltage Monitor) to a TORKEL 930 or 950, though, and the system becomes something more useful again: a complete, standalone discharge and cell-monitoring rig that tracks individual cell voltages throughout the entire test. That matters because bank-level capacity numbers can hide a single weak cell dragging the whole string down. With BVM connected, that weak cell shows up on screen in real time — while there’s still time to plan a bypass and keep the test running, rather than finding out about it after the string has already failed in service.

Choosing between the 910, 930, and 950

The TORKEL900 series isn’t a one-size-fits-all box — Megger built three models specifically so buyers aren’t paying for capability they don’t need, or worse, under-specifying for the battery plant they actually have to test.

TORKEL 910 — for straightforward capacity testing on smaller systems. Rated to 110 A and 300 V, the 910 is the entry point into the series and suits contractors and facility teams running capacity checks on smaller UPS strings, switchgear trip batteries, or standalone standby systems where cell-by-cell monitoring isn’t part of the maintenance regime. It doesn’t support BVM integration or the full PC-based reporting suite, but as a dedicated discharge/capacity tester for smaller banks, it covers the core job at a lower entry cost.

TORKEL 930 — for teams that need the full picture. Stepping up to 220 A while holding the 300 V ceiling, the 930 adds BVM compatibility, charging measurement, and full report functionality through TORKEL Viewer. This is the natural fit for utility maintenance teams, data centre facilities staff, and calibration technicians who need to combine bank-level capacity data with individual cell voltage tracking and produce a proper PC-generated test report as part of a documented maintenance programme.

TORKEL 950 — for high-voltage battery plant. Built for the same 220 A discharge capacity as the 930 but extending the voltage range to 500 V, the 950 is the model to specify for larger substation battery banks, high-voltage telecom plant, and industrial systems where the 300 V ceiling of the 910/930 simply isn’t enough. It carries the same BVM integration and full reporting functionality as the 930, scaled for bigger battery systems.

Across all three models, the underlying test engine, safety systems, and workflow are identical — the difference is current and voltage headroom, and whether BVM cell monitoring and full PC reporting are included. That makes it straightforward to match the unit to the battery plant on site rather than defaulting to the biggest (and most expensive) option out of caution.

Where the TORKEL900 series earns its keep

• Substations and utility battery plant — capacity testing DC trip and control batteries as part of scheduled maintenance programmes.
• Data centres — verifying UPS battery strings can genuinely deliver runtime during a mains failure, without pulling the string offline.
• Telecommunications infrastructure — testing rectifier-fed battery banks against realistic load profiles.
• Industrial and OEM facilities — capacity testing standby and backup power systems supporting critical process equipment.
• Calibration and test labs — running structured, repeatable discharge tests as part of documented battery health trending programmes.

Technical Specifications (TORKEL900 Series)

Specifications sourced from the Megger TORKEL900 Series datasheet (Doc. CS033664LE, 2022) and manufacturer product page. Where the datasheet and web page differ in presentation, the datasheet’s figures are treated as authoritative.

What does the Megger TORKEL900 do? The TORKEL900 series is a battery discharge test system that applies a controlled load to a battery bank to measure its actual usable capacity, without needing to disconnect the battery from service.

What’s the difference between the TORKEL 910, 930, and 950? The TORKEL 910 tests up to 110 A and 300 V with basic capacity testing only. The TORKEL 930 raises current to 220 A and adds BVM cell monitoring, charging measurement, and full PC reporting. The TORKEL 950 matches the 930’s features but extends voltage capability to 500 V for larger battery plant.

Can the TORKEL900 test a battery without taking it offline? Yes. The TORKEL900 connects to the battery in service and regulates discharge current via a DC clamp-on ammeter, so the battery bank doesn’t need to be disconnected or replaced with a temporary backup during the test.

What happens if the battery voltage drops too low during a TORKEL discharge test? The TORKEL issues an alarm when voltage approaches the final discharge level, and automatically stops the test if there’s a risk of deep discharge damaging the battery.

Can multiple TORKEL units be linked together for higher current? Yes. Two or more TORKEL900 units, or Megger’s TXL extra load units, can be linked to increase total discharge current beyond a single unit’s rating for larger battery banks.

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