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TH0240 Threading AC/DC I/V Transfer Standard

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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


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