error < 0.1% error < 0.2% error < 1%
error < 1.0% error < 2.0% error < 0.1%
2- or 4-wire
2.5V

C&H Technologies, Inc. • 445 Round Rock West Drive • Round Rock, TX 78681-5012

(512) 733-2621 • FAX (512) 733-2629 • www.chtech.com

DC Voltage Measurement:

Maximum Voltage Input:

 

• HV Input:

500VDC for 500V range

• Normal Input:

125VDC for other ranges

Measuring Ranges:

•±125mV, ±1.25V, ±12.5V, ±125V, ±500V

Measuring Accuracy:

 

• 24 hours, 23°C ±1°C:

error < 0.025%

•

90 days, 23°C ±5°C:

error < 0.05%

•

Temp Coefficient, 0 to +55°C:

error < 0.01%

Measuring Ranges: ±12.5mA, ±125mA, ±1.25A, ±2.5A

Measuring Accuracy:

 

•

24 hours, 23°C ±1°C:

error < 0.025%

•

90 days, 23°C ±5°C:

error < 0.05%

•Temperature Coefficient, 0 to +55°C: error < 0.01%

Shunt:

 

 

 

• 12.5mA and 125mA ranges:

1

Ω

• 1.25A and 2.5A ranges:

 

0.1

Ω

AC Current Measurement:

 

 

Maximum Voltage:

 

42 V on all ranges

Measuring Ranges:

25mA, 250mA, 2.5A all RMS

Input Impedance:

 

• 500V input (HV)

40 MΩ

• 125V and 12.5V ranges

10 MΩ

• 1.25V and 125 mV ranges

>1 GΩ

Input Current:

10 pA max @ 23°C

CMRR:

100dB @ 50/60 Hz

NMRR:

60 dB @ 50/60 Hz

Crest Factor:

4 max

Measuring Accuracy:

 

 

• 24 hours, 23°C ±1°C:

error < 0.5%

• 90 days, 23°C ±5°C:

error < 1.0%

Shunt:

 

 

• 25mA and 250mA ranges:

1

Ω

• 2.5A ranges:

0.1

Ω

AC Voltage Measurement:

Maximum Input Voltage:

• High Voltage Input: 250V AC

• Normal Input: 60V AC

Measuring Ranges:

 

 

• 250mVrms, sine 40 Hz-100KHz:

error < 5%

• 2.5Vrms, sine 40 Hz-100KHz:

 

error < 1%

• 25Vrms, sine 40 Hz-100KHz:

 

error < 1%

• 250Vrms (HV in) sine 40 Hz-100KHz:

error < 1%

Crest Factor:

 

4 max

Measuring Accuracy @ 50/60 Hz:

 

• 24 hours, 23°C ±1°C:

 

error < 0.5%

• 90 days, 23°C ±5°C:

 

error < 1.0%

• Range Error:

 

< 1%

Input Impedance:

 

 

• High-voltage input:

 

40 MΩ

• Normal Input:

 

1 MΩ

Input Current:

10 pA max @ 23°C

CMRR:

100dB @ 50/60 Hz

Resistance Measurement:

Measuring Ranges: 250_, 2.5K_, 25K_, 250K_, 2.5M_

Measuring Accuracy (All but 2.5M_ range):

• 24 hours, 23°C ±1°C:

• 90 days, 23°C ±5°C:

• Temperature Coefficient, 0 to 55°C:

Measuring Accuracy (For 2.5M_ range):

• 24 hours, 23°C ±1°C:

• 90 days, 23°C ±5°C:

• Temperature Coefficient, 0 to 55°C:

Measuring Modes:

Maximum Measuring Voltage:

DC Current Measurement:

Maximum Voltage:

60 V on all ranges

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CH Tech PX454S DC Voltage Measurement, AC Voltage Measurement, Resistance Measurement, DC Current Measurement
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PX454S specifications

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