Dc voltage measurement, Ac voltage measurement, Dc current measurement – C&H Technologies PX454S User Manual
Page 2: Ac current measurement, Resistance measurement
Rev. A
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%
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
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
DC Current Measurement:
Maximum Voltage:
60 V on all ranges
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
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
Resistance Measurement:
Measuring Ranges:
250_, 2.5K_, 25K_, 250K_, 2.5M_
Measuring Accuracy (All but 2.5M_ range):
• 24 hours, 23°C ±1°C:
error < 0.1%
• 90 days, 23°C ±5°C:
error < 0.2%
• Temperature Coefficient, 0 to 55°C:
error < 1%
Measuring Accuracy (For 2.5M_ range):
• 24 hours, 23°C ±1°C:
error < 1.0%
• 90 days, 23°C ±5°C:
error < 2.0%
• Temperature Coefficient, 0 to 55°C:
error < 0.1%
Measuring Modes:
2- or 4-wire
Maximum Measuring Voltage:
2.5V