16-1
IM 253421-01E
16
Specifications
Chapter 16 Specifications
16.1 Input
Voltage
Item
Specification
Input circuit type
Floating input
Resistive voltage divider
Rated inputs (range rms)
600, 300, 150, 60, 30, 15 V
Input impedance
Input resistance approx.2 M
Ω
, Input capacitance approx.13 pF
Instantaneous maximum
The peak is 2.8 kV or the RMS value is 2.0 kV, whichever is less.
allowable input for 20 ms,
1 cycle
Instantaneous maximum
The peak is 2.0 kV or the RMS value is 1.5 kV, whichever is less.
allowable input for 1 s
Continuous maximum
The peak is 1.5 kV or the RMS value is 1.0 kV, whichever is less.
allowable input
Continuous maximum
600 Vrms (when the protective cover for the output connector is used) CAT II,
common mode voltage
400 Vrms (when the protective cover for the output connector is removed) CAT II
(at 50/60 Hz)
Common mode rejection
50/60 Hz, better than -80 dB (
±
0.01% of range maximum)
ratio at 600 Vrms between Voltage input terminals : short
input terminals and case
Reference value: 50 kHz max.
±
{(maximum range rating)/(range rating)
×
0.001
×
f% of range} or
less; 0.01% or more; the unit f: kHz
Input terminals
Binding posts
A/D conversion
Simultaneous sampling of voltage and current inputs; Resolution: 12 bits; Maximum conversion rate:
approx. 22
µ
s (approx. 45 kHz)
Range switching
Range can be selected manually, automatically or by communication control.
Automatic range switching Range up:
When the measured value exceeds 110% of the rated range or the peak value
exceeds approximately 300% of the rated range
Range down: When the measured value becomes less than 30% of the rated range and the peak
value is less than approximately 300% of the subordinate range
Measurement mode
The following modes can be set manually or by communication control:
switching
RMS: True RMS measurement for both voltage and current; V MEAN: Rectified Mean Calibrated to
an RMS sine wave measurement for voltage, and true RMS measurement for current; DC: Mean
value measurement for voltage and current
