PowerTek PA2553, User Manual, Page: 85 / 88

Appendix B - Measurement Specifications 85
External Current (Option E, current input)
DC 0.1% + 0.01A
0.02Hz to 20Hz range 0.1% + 0.002A + 0.1%/Hz
add 0.15% below 0.04Hz if AC coupled
add 0.01A for peak measurements
0.2Hz to 200Hz range 0.1% + 0.002A + 0.01%/Hz
add 0.05% below 0.4Hz if AC coupled
add 0.01A for peak measurements
2Hz to 2KHz range 0.1% + 0.002A + 0.001%/Hz
add 0.05% below 4Hz if AC coupled
add 0.01A for peak measurements
20Hz to 5KHz range 0.1% + 0.003A + 0.4%/KHz
add 0.05% below 40Hz if AC coupled
add 0.03A for peak measurements
20Hz to 75KHz range 0.1% + 0.005A + 0.02%/KHz
add 0.1% below 40Hz if AC coupled
add 0.05A for peak measurements
Phase (to Voltage) 0.1° + 0.05°/KHz
Phase (to other phase) 0.1° + 0.05°/KHz
Current to Current Crosstalk >100dB decreasing linearly to >70dB at 75KHz
VA
(Applied Voltage) x Current Ac (Applied Current) x Voltage Accuracy
Power Factor
Combination of phase and crosstalk specifications
At 115 or 230Vrms (current >10% range for option fitted) -
PF = 1.0000 0.9000 0.7000 0.5000 0.3000 0.1000 0.0000
@ 50/60Hz 0.0001 0.0008 0.0013 0.0016 0.0017 0.0018 0.0018
@ 400Hz 0.0001 0.0009 0.0015 0.0018 0.0020 0.0021 0.0021
@ 30KHz 0.0005 0.0218 0.0318 0.0341 0.0329 0.0295 0.0273
@ 75KHz 0.0056 0.0725 0.1014 0.1068 0.1015 0.0897 0.0822