kewtechcorp.com
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kewtechcorp.com
Measurement Range
Accuracy
System Voltage
Range
System Voltage
Frequency
Over Voltage
Protection
(BS EN 61557-10)
0.00 Ω to 500.0 Ω
± (3% + 3 digits)
100 - 440 V ac
50-60 Hz
550 V
Measurement Specifications and Accuracies
High Current - High Resolution
2 wire test Live – Earth or Phase - Phase.
Measurement Range
Accuracy
System Voltage
Range
System Voltage
Frequency
Over Voltage
Protection
(BS EN 61557-10)
0.00 Ω to 500.0 Ω
± (5% + 5 digits)
195 - 253 V ac
50-60 Hz
550 V
No Trip
3 wire test Live-Earth, 13 mA nominal at 230V, max 5Ω Neutral impedance.
Voltage
Load
Accuracy
Output Current
Short Circuit
Current
250 V
250 kΩ
-0% +20%
1 mA
<2 mA
500 V
500 kΩ
-0% +20%
1 mA
< 2 mA
1000 V
1 MΩ
-0% +20%
1 mA
< 2 mA
Insulation
Test Voltage Measurement Range
Accuracy
Short Circuit
Current
(into 2kΩ)
Over Voltage
Protection
(BS EN 61557-10)
250 V
0.001 to 200.0 MΩ
± (3% + 2 10%/GΩ)
< 2 mA
550 V
500 V
0.001 to 500.0 MΩ
± (3% + 2 5%/GΩ)
< 2 mA
550 V
1000 V
0.001 to 1000 MΩ
± (3% + 2 2.5%/GΩ)
< 2 mA
550 V
Output Voltage
Loop / PFC-PSC
High Current
2 wire test Live – Earth or Phase - Phase, 7A nominal at 230V.
Measurement Range
Accuracy
System Voltage
Range
System Voltage
Frequency
Over Voltage
Protection
(BS EN 61557-10)
0.000 Ω to 9.999 Ω
± (3% + 30mΩ)
100 - 440 V ac
50-60 Hz
550 V
