Chapter 16 Specifications; Input - YOKOGAWA WT200 User Manual

Chapter 16 Specifications

16.1 Input

Voltage
Item
Input circuit type
Rated inputs (range rms)
Input impedance
Instantaneous maximum
allowable input for 20 ms,
1 cycle
Instantaneous maximum
allowable input for 1 s
Continuous maximum
allowable input
Continuous maximum
common mode voltage
(at 50/60 Hz)
Common mode rejection
ratio at 600 Vrms between Voltage input terminals : short
input terminals and case
Input terminals
A/D conversion
Range switching
Automatic range switching Range up:
Measurement mode
switching
IM 253421-01E
Specification
Floating input
Resistive voltage divider
600, 300, 150, 60, 30, 15 V
Input resistance approx.2 MΩ, Input capacitance approx.13 pF
The peak is 2.8 kV or the RMS value is 2.0 kV, whichever is less.
The peak is 2.0 kV or the RMS value is 1.5 kV, whichever is less.
The peak is 1.5 kV or the RMS value is 1.0 kV, whichever is less.
600 Vrms (when the protective cover for the output connector is used) CAT II,
400 Vrms (when the protective cover for the output connector is removed) CAT II
50/60 Hz, better than -80 dB (±0.01% of range maximum)
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
Binding posts
Simultaneous sampling of voltage and current inputs; Resolution: 12 bits; Maximum conversion rate:
approx. 22 µs (approx. 45 kHz)
Range can be selected manually, automatically or by communication control.
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
The following modes can be set manually or by communication control:
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
16
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