YOKOGAWA WT210, User Manual, Page: 296 / 316

16-1
IM 760401-01E
Specifications
16
Chapter 16 Specifications
16.1 Input
Item Specifications
Input terminal type Voltage
Plug-in terminal (safety terminal structure)
Current
• Direct input: Large binding post
• Current sensor input (option): BNC connector (insulation type)
Input format Voltage
Floating input, resistive voltage divider
Current
Floating input, shunt input
Measurement range Voltage
(Rated value) 15 V, 30 V, 60 V, 150 V, 300 V, 600 V
Current
• DC input
•
When the crest factor is set to 3
•
Common to WT210 and WT230: 0.5 A, 1 A, 2 A, 5 A, 10 A, and 20 A
• WT210 only: 5 mA, 10 mA, 20 mA, 50 mA, 100 mA, and 200mA
• When the crest factor is set to 6
•
Common to WT210 and WT230: 0.25 A, 0.5 A, 1 A, 2.5 A, 5 A, and 10 A
• WT210 only: 2.5 mA, 5 mA, 10 mA, 25 mA, 50 mA, and 100 mA
• External sensor input (option)
•
When the crest factor is set to 3
Either “2.5 V, 5 V, and 10 V” or “50 mV, 100 mV, 200 mV”
• When the crest factor is set to 6
Either “1.25 V, 2.5 V, and 5 V” or “25 mV, 50 mV, 100 mV”
Input impedance Voltage
Input resistance: Approx. 2 M
Ω
, input capacitance: Approx. 13 pF
Current
• DC input
•
WT230
Input resistance: Approx. 6 m
Ω
, input inductance: Approx. 0.1
µ
H
• WT210 (when the crest factor is set to 3: 0.5 A, 1 A, 2 A, 5 A, 10 A, and 20 A ranges;
when the crest factor is set to 6: 0.25 A, 0.5 A, 1 A, 2.5 A, 5 A, and 10 A ranges)
Input resistance: Approx. 6 m
Ω
+ 10 m
Ω
(max)*, input inductance: Approx. 0.1
µ
H
• WT210 (when the crest factor is set to 3: 5 mA, 10 mA, 20 mA, 50 mA, 100 mA, and 200
mA ranges; when the crest factor is set to 6: 2.5 mA, 5 mA, 10 mA, 25 mA, 50 mA, and
100 mA ranges)
Input resistance: Approx. 500 m
Ω
, input inductance: Approx. 0.1
µ
H
• External sensor input
•
When the crest factor is set to 3: 2.5 V, 5 V, and 10 V ranges; when the crest factor is set
to 6: 1.25 V, 2.5 V, and 5 V ranges
Input resistance: Approx. 100 k
Ω
• When the crest factor is set to 3: 50 mV, 100 mV, and 200 mV ranges; when the crest
factor is set to 6: 25 mV, 50 mV, and 100 mV ranges
Input resistance: Approx. 20 k
Ω
Instantaneous maximum Voltage
allowable input Peak value of 2.8 kV or RMS value of 2.0 kV, whichever is less.
(1 period, for 20 ms) Current
• DC input
•
When the crest factor is set to 3: 0.5 A, 1 A, 2 A, 5 A, 10 A, and 20 A ranges; when the
crest factor is set to 6: 0.25 A, 0.5 A, 1 A, 2.5 A, 5 A, and 10 A ranges
Peak value of 450 A or RMS value of 300 A, whichever is less.
• When the crest factor is set to 3: 5 mA, 10 mA, 20 mA, 50 mA, 100 mA, and 200 mA
ranges; when the crest factor is set to 6: 2.5 mA, 5 mA, 10 mA, 25 mA, 50 mA, and 100
mA ranges
Peak value of 150 A or RMS value of 100 A, whichever is less.
• External sensor input
Peak value less than or equal to 10 times the rated range.
* Factory default