Features Can check the insulation of high-voltage electrical equipment (electric motor, transformer, and cable, etc)Test Voltage from 250 V - 5 KVInsulation Resistance up to 5 T OhmShort Current up to 3 mAAuto Calculate PI (Polarization index ) and DAR (Dielectric Absorption Ratio)Step-Voltage MeasurementTemperature measurementTemperature compensation for Insulation TestLeakage Current measurementData Storage function and uploading to PC by USB2.0 InterfaceTimer FunctionPower Supply: LR6 Battery X 6/Rechargeable battery Ni~MH 7.2VCharger Input Voltage: 100V - 240VOutput Voltage 12V DC 3AFrequency 50Hz~60Hz, Weight 2.5Kg (not including Battery)Size 284 mm(L) X 230mm(w) X 125mm (h)Temperature CompensationTC for obtaining the insulation resistance under a temperature other than current ambient temperature.Converts the measured value of resistance to the insulation resistance under a reference temperature, and displays the result.Depending on the different properties of test objects, there are 10 modes of compensation.Test VoltageTest Voltage Range DC 250 V - DC 5.00 KVVoltage Set: Wide adjust: ( 250 V 500 V 1000 V 2.5 KV 5 KV) Fine adjust (250V-1 KV Step: 25 V, 1 KV~5 KV, Step 100 V )Accuracy: 5%Step mode: 500V, 1.0 KV, 1.5KV, 2KV, 2.5KV Test Current 1 nA ~ 3mA SPECIFICATIONS Insulation Test Operating Voltage(DCV) Measure Range Accuracy 250V 0.01 M Ohm~2.5 G Ohm + (5.0%+5) 2.51 G Ohm -250 G Ohm (10%+15) 500V 0.01 M Ohm -5.0 G Ohm (5.0%+5) 5.01G Ohm ~500 G Ohm (10%+10) 1000V 0.01 M Ohm -10 G Ohm (5.0%+5) 10.1G Ohm ~500 G Ohm (10%+10) 501 G Ohm -999 G Ohm (15%+10) 2.5k 0.01 M Ohm -25 G Ohm (5.0%+5) 25.1 G Ohm -500 G Ohm (10%+10) 501 G Ohm -999 G Ohm (15%+30) 1 T Ohm -2.5 T Ohm (15%+40) 5kV 0.01 M Ohm -50 G Ohm (5.0%+5) 50.1 G Ohm -500 G Ohm (10%+10) 501 G Ohm ~999 G Ohm (15%+20) 1 T Ohm -5 T Ohm (20%+40) Leakage Current Test Range Measure Range Accuracy 10nA 1.00nA~9.99nA + (15%+1nA) 100nA 9.0nA~99.9nA (15% + 5) 1000nA 100nA~999nA (2.5% + 5) 10pA 0.90uA~9.99uA 100pA 9.0uA~99.9pA 1000mA 90uA~999uA 3mA 0.90mA~3.00mA Voltage Test Measure Mode DC Voltage AC Voltage Measure Range + (50V~ 1000V) 50V~1000V(50Hz~60Hz) Accuracy + (5.0%+5) + (5.0%+5) Input Impedance Approx. 10M Ohm Approx.10M Ohm Temperature Test Measure Range Accuracy -10 C ~ 0.1C 1.5 C 0.0 'C ~ 40.0 C 1.0 C 40.1'C ~ 70.0-C + 1.5C General Power supply 1.5V(LR14)x 10 batteries Size 285mm x 230mm x 125mm Weight Approx. 2100g Safety Rating CAT III 1000V CAT IV 600V RoHS