YOKOGAWA wt3000, User Manual, Page: 315 / 384

12-1
IM 760301-01E
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12 12
App
Index
Specifications
12.1 Input Section
Item Specifications
Input terminal type Voltage
Plug-in terminal (safety terminal)
Current
• Direct input: Large binding post
• Current sensor input: Isolated BNC connector
Input format Voltage
Floating input, resistive voltage divider
Current
Floating input, shunt input
Measurement range Voltage
(rated value) • When the crest factor is set to 3: 15 V, 30 V, 60 V, 100 V, 150 V, 300 V, 600 V, and 1000 V
• When the crest factor is set to 6: 7.5 V, 15 V, 30 V, 50 V, 75 V, 150 V, 300 V, and 500 V
Current (2-A input element)
• Direct input:
• 5 mA, 10 mA, 20 mA, 50 mA, 100 mA, 200 mA, 500 mA, 1 A, or 2 A when the crest factor is
set to 3.
• 2.5 mA, 5 mA, 10 mA, 25 mA, 50 mA, 100 mA, 250 mA, 500 mA, 1 A when the crest factor
is set to 6.
• External sensor input:
• When the crest factor is set to 3: 50 mV, 100 mV, 200 mV, 500 mV, 1 V, 2 V, 5 V, and 10 V
• When the crest factor is set to 6: 25 mV, 50 mV, 100 mV, 250 mV, 500 mV, 1 V, 2.5 V, and
5 V
Current (30-A input element)
• Direct input:
• When the crest factor is set to 3: 500 mA, 1 A, 2 A, 5 A, 10 A, 20 A, and 30 A
• When the crest factor is set to 6: 250 mA, 500 mA 1 A, 2.5 A 5 A, 10 A, and 15 A
• External sensor input:
• When the crest factor is set to 3: 50 mV, 100 mV, 200 mV, 500 mV, 1 V, 2 V, 5 V, and 10 V
• When the crest factor is set to 6: 25 mV, 50 mV, 100 mV, 250 mV, 500 mV, 1 V, 2.5 V, and 5 V
Input impedance Voltage
Input resistance: Approx. 10 M
Ω
, input capacitance: Approx. 5 pF
Current (2-A input element)
• Direct input: Approx. 500 m
Ω
+ approx. 0.07
µ
H
• External sensor input: Input resistance: Approx. 1 M
Ω
, input capacitance: Approx. 40 pF
Current (30-A input element)
• Direct input: Approx. 5.5 m
Ω
+ approx. 0.03
µ
H
• External sensor input: Input resistance: Approx. 1 M
Ω
, input capacitance: Approx. 40 pF
Instantaneous maximum Voltage
allowable input Peak value of 2500 V or RMS value of 1500 V, whichever is less.
(1s or less) Current (2-A input element)
• Direct input: Peak value of 9 A or RMS value of 3 A, whichever is less.
• External sensor input: Peak value less than or equal to 10 times the measurement range.
Current (30-A input element)
• Direct input: Peak value of 150 A or RMS value of 50 A, whichever is less.
• External sensor input: Peak value less than or equal to 10 times the measurement range.
Continuous maximum Voltage
allowable input Peak value of 1600 V or RMS value of 1100 V, whichever is less.
Current (2-A input element)
• Direct input: Peak value of 6 A or RMS value of 2.2 A, whichever is less.
• External sensor input: Peak value less than or equal to 5 times the measurement range.
Current (30-A input element)
• Direct input: Peak value of 90 A or RMS value of 33 A, whichever is less.
• External sensor input: Peak value less than or equal to 5 times the measurement range.
Chapter 12 Specifications