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Yokogawa CL320 Clamp-on Leakage Tester Features:

• Leakage current measurement with current range from 20mA to 200A
• Light weight and compact design
• Manual range switching and auto power-off functions
• 24mm in diameter of measurable conductor
• Mean value display
• Auto power-off
• Manual range switching
• Approved for conformity to safety standards EN61010-1, EN61010-2-032(CAT. III 300 V)

Yokogawa CL320 Clamp-on Leakage Tester Specifications:

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Yokogawa CL220 Specifications:

Yokogawa CL220 Additional Specification:

At 23°C±5°C, 75%RH or less
Accuracy: ±( % rdg + dgt) = ±(% readout + value of least significant digit)

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The post Yokogawa CL345 40mA/400A Leakage Current Clamp-On Meters appeared first on rapid-tech.

• Leakage current measurement with current range from 200mA to 1000A
• Method of detection Mean Value
• Display LCD (Digital display: 1999 counts)
• Response Time Approx. 1 second
• Range Switching Manual-range
• Data hold On all range
• Operating temperature and humidity -10 – 50°C , 80% RH or less (no condensation)
• Safety Standard Conforms EN61010-1, EN61010-2-032
• Circuit voltage 300 Vrms or less
• Withstanding voltage 3.7 kV AC for one minute
• Power Supply 6 LR61 x 1, 6F22 (006P) 9V x 1
• Battery Life Approx. 60 hours (continuous)
• Consumed current Approx. 5 mA
• Diameter of measurable conductor 68 mm at maximum
• Dimensions Approx. 129 (W) x 248 (H) x 55 (D) mm
• Weight Approx. 570 g
• Accessories Batteries, carrying case (93031), User’s manual
• Peak Hold On all range

Yokogawa CL360 Specifications:

The post Yokogawa CL360 200mA/1000A Leakage Current Clamp-On Meters appeared first on rapid-tech.

•3200 count LCD display
•Mean value display
•Exclusive model for Leakage current measurement with current ranges from 3mA to 60A
•Resolution of 0.001mA at 3mA range
•Can measure a broad range of currents from leakage currents (at a resolution of 0.001 mA) to load currents up to 60 A.
•Can measure leakage currents of 1 mA
•Approved for conformity to safety standards EN 61010-1 and EN 61010-2-032 (CAT III 300V, pollution degree2)

Parameter Reference
AC Current 3/30mA, 30/60A
Frequency Characteristics 50/60Hz
Accuracy 50/60Hz 1.0+5 (0~30mA) 1.0+5 (0 ~ 50A) 5.0+5 (50/60Hz)

Yokogawa 30031A General Specifications

Parameter Specification
Method of Detection Mean Value
Diameter of Measurable conductor Ø40MM at maximum
Display LCD Digital Display: 3200 Counts
Bar-graph Display: 32 Segments
Measurement Cycle Digital Display: 2 times/Seconds
Bar-Graph Display: 12 times/second
Range Switching Auto-Range
Data Hold On All range
Ambient Temperature and Humidity 0-50˚C, 85% RH or less (no condensation)
Temperature coefficient 0.05% of range/°C or less (within the ranges of 0-18°C and 25-50°C for measurement of 0-50A)
Influence of external Magnetic Field 0.0005% typical*1 (on current value of adjacent cable)
Influence of Conductor Position Within Accuracy
Circuit Voltage 300Vrms or less
Withstanding Voltage 3.7kV AC for one minute
Power Supply CR2032 (coin-shaped) 3V x1
Battery Life Approx. 90 hours (continuous use)
Auto Power-off Approx. 10 Minutes
Dimensions Approx. 70(W)x176(H)x25(D)mm
Weight Approx. 200g

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1. What is a Harmonic?

Harmonic refers to sinusoidal quantity having a frequency that is an integral multiple of the fundamental frequency (for example, the commercial frequency). When a harmonic is superimposed on the fundamental frequency, the waveform is distorted.
2. Why is it Necessary to Accurately Measure the Leakage Current of the Fundamental Frequency (Commercial Frequency)?

One problem when measuring the leakage current to check the isolation of electrical circuits in power distribution equipment is that the electrical isolation cannot be correctly understood due to the influence of a harmonic current. That is, the leakage current flowing from the electrical circuit to ground is very small so that, in order to check the isolation of electrical circuits by means of the leakage current, it is necessary to remove the harmonic component of the leak current and measure only the current of the fundamental frequency (commercial frequency).
3. The Yokogawa 30032A Employs a Harmonic Filter

Conventional leakage clamp-on testers could not sufficiently remove harmonic current components so measured leakage current values were often larger than the specified value due to the influence of a harmonic current. In this case, retesting with an insulation tester was required, resulting in increased effort and cost for the test. Under these circumstances, Yokogawa Meters & Instruments Corporation has developed the leakage clamp-on tester 30032A, which employs a high-performance harmonic filter that can accurately measure just the fundamental frequency component of the leakage current.

Yokogawa 30032A Specifications

Yokogawa 30032A General Specifications
Method of Detection	Mean Value
Diameter of Measurable conductor	±40MM at maximum
Display	LCD	Digital Display: 3200 Counts
		Bar-graph Display: 32 Segments
		“OL” over-range indication  Low-battery symbol  Data hold symbol
Measurement Cycle	Digital Display: 2 times/Seconds
	Bar-Graph Display: 12 times/second
Range Switching	Auto-Range
Data Hold	On All range
Ambient Temperature and Humidity	0-50°C, 85% RH or less (no condensation)
Temperature coefficient	0.05% of range/°C or less (within the ranges of 0-18°C and 25-50°C for measurement of 0-50A)
Influence of external Magnetic Field	0.0005% typical*1 (on current value of adjacent cable)
Influence of Conductor Position	Within Accuracy
Circuit Voltage	300Vrms or less
Withstanding Voltage	3.7kV AC for one minute
Power Supply	CR2032 (coin-shaped) 3V x1
Battery Life	Approx. 90 hours (continuous use)
Auto Power-off	Approx. 10 Minutes
Dimensions	Approx. 70(W)x176(H)x25(D)mm
Weight	Approx. 200g

AC current measurement
Filter function OFF
Accuracy: ± (% of reading + digits)
Range	Resolution	Accuracy	Maximum Allowable Current
3mA	0.001mA	0.010 < I ≤32.70mA: 1.0%+5	3.270mA
30mA	0.01mA		32.70mA
30A	0.01A	0.05 < I ≤50.0A:1.0%+5 50.0 < I ≤60.6A:5.0%+5	32.70A
60A	0.1A		60.6A
Filter function ON
3mA	0.001mA	0.010 < I ≤32.70mA: 1.5%+5	3.270mA
30mA	0.01mA		32.70mA
30A	0.01A	0.05 < I ≤50.0A:1.5%+5 50.0 < I ≤60.6A:5.5%+5	32.70A
60A	0.1A		60.6A
Note: Input current of 2nd-order and higher harmonics : 150 mA rms maximum in the 3 mA/30 mA range : 62 A rms maximum in the 30 A/60 A range Filter specifications (3 mA and 30 mA ranges and 30 A and 60 A ranges) Amplitude ratio at 100 Hz: -38 dB (1.26%) or less (typical: -41 dB) Amplitude ratio at 120 Hz: -53 dB (0.22%) or less (typical: -56 dB) Zero correction 3 mA range: Displays 0.000 mA (zero) when 0.010 mA < I 30 A range: Displays 0.00 A (zero) when 0.05 A < I

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The Yokogawa CL420 allows the user to make safe current checks of 4 to 20mA without breaking the loop. In addition, the output function provides a simple way to log and monitor the data.

The CL420 Clamp-on Process Meter will safely measure 0-120 mA DC process control signals without breaking the loop. Typical application examples include distributed control systems, programmable logic controllers, pressure and temperature transmitters, and loop powered isolators and indicators.

Yokogawa CL420 DC mA Clamp-on Process Meter Features:

• 4-digit LCD Numeric Display.
• 0.2% Accuracy, 0.01mA Resolution.
• Jaw Opening for up to 6mm wire size
• Dual Display.
• LED Backlight Display.
• Auto Ranging.
• Data Hold function.
• Zero adjust.
• Auto Power Off.
• Analogue Output
• Safety standards: EN61010-1, EN61010-2-030, EN61010-2-032

The post Yokogawa CL420 4mA to 20mA Clamp-On Process Meter for DC mA appeared first on rapid-tech.

• Mean value display
• Auto power-off
• Manual range switching
• Approved for comformity to safety standards EN61010-1, EN61010-2-032 (CAT. III 300 V)

Yokogawa CL340 Specifications

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