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 Specications 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 digits + 10%/GΩ) < 2 mA 550 V
500 V 0.001 to 500.0 MΩ ± (3% + 2 digits + 5%/GΩ) < 2 mA 550 V
1000 V 0.001 to 1000 MΩ ± (3% + 2 digits + 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