Introduction
TH0240, a series of I/V high-precision AC/DC current transfer standard, are divided into A, B, C, D four versions according to the accuracy.
TH0230 can work in the DC, 10HZ~5kHz frequency range (3dB signal bandwidth ≥100kHz), converting 200A ~ 10kA nominal current into 1V small voltage.
Best DC ratio measurement accuracy: 5 ppm(TH0240D), Best AC ratio measurement accuracy: 100 ppm(TH0240D), supporting positive and negative current measurement.
DC current multi-lap zero adjustment potentiometer and locking device, primary input and secondary output have good electrical isolation, high common mode rejection ratio (CMRR).
l It is convenient to be connected into the large current loop with threading structure. The secondary output can be equipped with high-precision voltmeter to achieve high-precise measurement of current.
It is suitable for calibration of AC-DC high current source/meter (such as calibrator for clamp-meter), current sensor/transformer, electric welder, micro-ohmmeter and other occasions where current needs to be measured.
TH0230 can be used with broadband AC/DC V/V voltage divider, dual-channel voltage vector analyzer to set up high-precision AC/DC power/energy measurement system.
Introduction
TH0240, a series of I/V high-precision AC/DC current transfer standard, are divided into A, B, C, D four versions according to the accuracy.
TH0230 can work in the DC, 10HZ~5kHz frequency range (3dB signal bandwidth ≥100kHz), converting 200A ~ 10kA nominal current into 1V small voltage.
Best DC ratio measurement accuracy: 5 ppm(TH0240D), Best AC ratio measurement accuracy: 100 ppm(TH0240D), supporting positive and negative current measurement.
DC current multi-lap zero adjustment potentiometer and locking device, primary input and secondary output have good electrical isolation, high common mode rejection ratio (CMRR).
l It is convenient to be connected into the large current loop with threading structure. The secondary output can be equipped with high-precision voltmeter to achieve high-precise measurement of current.
It is suitable for calibration of AC-DC high current source/meter (such as calibrator for clamp-meter), current sensor/transformer, electric welder, micro-ohmmeter and other occasions where current needs to be measured.
TH0230 can be used with broadband AC/DC V/V voltage divider, dual-channel voltage vector analyzer to set up high-precision AC/DC power/energy measurement system.
Specification
Model | Primary Inom (A) | Secondary Unom (V) | measurement bandwidth (kHz) | Best Ratio Measurement Accuracy (ppm*FS) | |||||||
TH0240A | TH0240B | TH0240C | TH0240D | ||||||||
DC | AC@ 53Hz | DC | AC@ 53Hz | DC | AC@ 53Hz | DC | AC@ 53Hz | ||||
TH0240X-200A | 200 | 1 | ≥100 | 50 | 200 | 25 | 100 | 10 | 100 | — | — |
TH0240X-500A | 500 | 1 | ≥100 | 50 | 200 | 25 | 100 | 10 | 100 | 5 | 50 |
TH0240X-1kA | 1k | 1 | ≥100 | 50 | 200 | 25 | 100 | 10 | 100 | 5 | 50 |
TH0240X-2kA | 2k | 1 | ≥100 | 50 | 200 | 25 | 100 | 10 | 100 | 5 | 50 |
TH0240X-5kA | 5k | 1 | ≥100 | 50 | 200 | 25 | 120 | 10 | 120 | — | — |
TH0240X-10kA | 10k | 1 | ≥100 | 50 | 200 | 25 | 150 | 10 | — | — | — |
Note : FS is full-scale value |
Measurement range:(10%~110%)*FS,positive and negative current measurement;
Measuring frequency:DC,10Hz~5kHz
Specification
Model | Primary Inom (A) | Secondary Unom (V) | measurement bandwidth (kHz) | Best Ratio Measurement Accuracy (ppm*FS) | |||||||
TH0240A | TH0240B | TH0240C | TH0240D | ||||||||
DC | AC@ 53Hz | DC | AC@ 53Hz | DC | AC@ 53Hz | DC | AC@ 53Hz | ||||
TH0240X-200A | 200 | 1 | ≥100 | 50 | 200 | 25 | 100 | 10 | 100 | — | — |
TH0240X-500A | 500 | 1 | ≥100 | 50 | 200 | 25 | 100 | 10 | 100 | 5 | 50 |
TH0240X-1kA | 1k | 1 | ≥100 | 50 | 200 | 25 | 100 | 10 | 100 | 5 | 50 |
TH0240X-2kA | 2k | 1 | ≥100 | 50 | 200 | 25 | 100 | 10 | 100 | 5 | 50 |
TH0240X-5kA | 5k | 1 | ≥100 | 50 | 200 | 25 | 120 | 10 | 120 | — | — |
TH0240X-10kA | 10k | 1 | ≥100 | 50 | 200 | 25 | 150 | 10 | — | — | — |
Note : FS is full-scale value |
Measurement range:(10%~110%)*FS,positive and negative current measurement;
Measuring frequency:DC,10Hz~5kHz