TENMARS DIGITAL INSULATION TESTER

DC Voltage Measurement
Range Resolution Accuracy Input Impedance Overload Protection
0.1V to 600V 0.1V ±(0.5% of rdg + 1dgt) 3MΩ 605V AC max RMS
AC Voltage Measurement
Range Resolution Accuracy Input Impedance Overload Protection
0.1V to 600V 0.1V ±(0.8% of rdg + 4dgt) 3MΩ 605V AC max RMS
Max crest factor
Resistance Measurement/Test Continuity with buzzer
Range Resolution Accuracy Overload Protection
0.1Ω to 199.9Ω 0.1Ω ±(2.0% of rdg + 3dgt) 605V AC max RMS
The buzzer sounds when measured resistance is lower than 30 ohms.
LO Ohms
Range Resolution Accuracy Overload Protection
0.01Ω to 19.99Ω 0.01Ω ±(2.0% of rdg + 3dgt) 605V AC max RMS
Test Current: >200mA DC up to 5 ohms (including cable resistance)
Test Current: >45mA DC up to 5 ohms (including cable resistance)
Open Circuit Voltage: 4V <VO <24V
MOhm: Insulation Resistance (Auto Ranging)
Test Voltage Resistance Range Resolution Accuracy Overload Protection
250V 0.001 to 0.100MΩ 0.001MΩ ±10 digits
605V max RMS

0.101 to 3.999MΩ 0.001MΩ ±(2.0% rdg + 5 dgt)
4.00 to 39.99MΩ 0.01MΩ
40.0 to 399.9MΩ 0.1MΩ ±(5.0% rdg + 5 dgt)
400 to 1000MΩ 1MΩ
500V 0.001 to 0.250MΩ 0.001MΩ ±15 digits
0.251 to 3.999MΩ 0.001MΩ ±(2.0% rdg + 5 dgt)
4.00 to 39.99MΩ 0.01MΩ
40.0 to 399.9MΩ 0.1MΩ
400 to 2000MΩ 1MΩ ±(5.0% rdg + 5 dgt)
1000V 0.001 to 0.250MΩ 0.001MΩ ±15 digits
0.251 to 3.999MΩ 0.001MΩ ±(2.0% rdg + 5 dgt)
4.00 to 39.99MΩ 0.01MΩ
40.0 to 399.9MΩ 0.1MΩ
400 to 1000MΩ 1MΩ ±(3.0% rdg + 5 dgt)
1000 to 4000MΩ 1MΩ ±(5.0% rdg + 10 dgt
Autorange
Open circuit voltage: <1.3V x VO
Accuracy of nominal voltage: VO% + 10%
Short circuit current: <3.0mA
Nominal testing current: 1mA at 1kohm x V (1mA at 500kohm)