Seaward Power Clamp - Manual (Page 25)

24
Electrical Specifications
Accuracy is ±(% reading + number of digits) at 23°C ± 5°C
< 80%RH.
(
1) Voltage
Function Range Accuracy*
DCV
99.99V
± (0.7% + 2dgt)
999.9V
ACV
99.99V ± (1.0% + 5dgt)
50 ~ 500Hz 999.9V
LPF
ACV
99.99V
50 ~ 60Hz ± (1% + 5dgt)
>60 ~ 400Hz ± (5% + 5dgt)
999.9V
* DCV <1000dgt, add 6 dgt to the accuracy.
ACV <1000dgt, add 3 dgt to the accuracy.
Overload protection : 1000V
rms
Input Impedance : 3.5MΩ // <100pF
AC Conversion Type : AC Conversions are ac-coupled, true
RMS responding, calibrated to the RMS value of a sine wave
input. Accuracies are given for sine wave at full scale and non-
sine wave below half scale. For non-sine wave (50/60Hz) add
the following Crest Factor corrections:
For Crest Factor of 1.4 to 2.0, add 1.0% to accuracy.
For Crest Factor of 2.0 to 2.5, add 2.5% to accuracy.
For Crest Factor of 2.5 to 3.0, add 4.0% to accuracy.
CF 3 @ 460V, 280A
2 @ 690V, 420A
AC+DC Vrms Accuracy : same as ACV spec. +DCV spec.