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The Testo 526-1 is a high-precision differential pressure measuring instrument with an internal sensor and a measuring range from 0 to +2,000 hPa. It can calculate the differential pressure to an accuracy of ± 0.1% of final value
Additional probe inputs for versatile measurements
with the differential pressure measuring instrument
Up to two probes (optional) can also be attached via freely assignable probe inputs. You have the choice of a comprehensive range of probes for this:
Note: see datasheet for probe and accessory details available.
- Differential pressure probes
- Absolute pressure probes
- Relative pressure probes
- Temperature probes, such as surface, immersion and penetration probes
Further advantages of the Testo 526-1 high-precision differential pressure measuring instrument
The integrated test menu in the Testo 526 enables seamless recording, especially for tightness testing on containers. To document the pressure test, there is an option enabling the measurement data to be processed and archived using software and/or printed out via the Testo fast printer directly on site (software and printer available to order separately).
The memory can record up to 25,000 readings. These are stored under their individually designated measuring locations (max. 99 measuring locations) which means they can be quickly found again. Measurement data can be saved individually or as a series of measurements. The measuring rate (0.04 seconds, 1 second to 24 hours) and the number of values to be stored can be freely selected.
Testo 526-1 Pressure Meter Specifications
| Temperature – NTC | |
|---|---|
| Measuring range | -40 to +150 °C |
| Accuracy | ±0.2 °C (-10 to +50 °C)*
±0.4 °C (Remaining Range)* |
| Resolution | 0.1 °C |
*Accuracy information applies only to instrument without probes connected
| Temperature – TC Type K (NiCr-Ni) | |
|---|---|
| Measuring range | -200 to +1370 °C |
| Accuracy | ±0.4 °C (-100 to +200 °C)*
±1 °C (Remaining Range)* |
| Resolution | 0.1 °C |
*Accuracy information applies only to instrument without probes connected
| Differential pressure (internal sensor) – Piezoresistive | |
|---|---|
| Measuring range | 0 to 2000 hPa |
| Accuracy | ±0.1 % of fsv |
| Resolution | 0.1 hPa |
| Static pressure | 2000 hPa (abs) |
| Overload | 3000 hPa |
| Zeroing | to 50 hPa |
| Differential pressure (external probe) – Piezoresistive | |
|---|---|
| Measuring range | 0 to 2000 hPa |
| Accuracy | ±0.1 % of mv* |
| Resolution | 0.10 Pa (0638 1347)
0.01 hPa (0638 1547) 0.001 hPa (0638 1447) 0.1 hPa (0638 1847 / 0638 1647) |
*Accuracy information applies only to instrument without probes connected
| Differential pressure (external probe) – Ceramic | |
|---|---|
| Measuring range | -1 to 400 bar |
| Accuracy | ±0.2 % of fsv* |
| Resolution | 0.01 bar |
*Accuracy information applies only to instrument without probes connected
| General technical data | |
|---|---|
| Dimensions | 219 x 68 x 50 mm |
| Operating temperature | 0 to +50 °C |
| Housing | ABS |
| Measuring rate | 0.04 s |
| Battery type | 9 V (6LR61) |
| Battery life | Continuous operation w/ internal pressure sensor: 30 h; With rech. battery: 10 h; With carbon battery: 18 h |
| Connection | Hose: inner Ø 4 mm outer Ø 6 mm |
| Display type | LCD |
| Display function | with symbol, 7 segment display and point matrix |
| Display update | 2x per second, in fast measurement 4x per second |
| Power supply | Battery/Rechargeable battery,Mains unit 12 V |
| Interface | RS232 |
| Memory | 100 kB; 25,000 measuring values |
| Storage temperature | -20 to +70 °C |
| Weight | 300 g |
