Portable LCD Digital Insulation Resistance Tester Resistance Meter Megameter Electrician Test Instrument Condition: Item Type: Insulation Resistance Tester Material: ABS Color: As shown in the picture AC/DC voltage measurement Accuracy Range 600.0 V Resolution 0.1 V 50 Hz to 400 Hz ±(reading % +digits) ±(2% + 3) Input impedance 3 MΩ(nominal), < 100 pF Attenuation common-mode (1 k Ω imbalance) DC > 60 dB, 50 or 60 Hz Overload protection 600 V rms or DC Grounding connection resistance measurement Range/resolution 20.00 Ω 0.01 Ω 200.0 Ω 0.1 Ω 2000 Ω 1.0 Ω 20.00 kΩ 0.01 kΩ Accuracy ±(1.5% + 3) Overload protection 2 V rms or DC Open circuit test voltage > 4.0 V, < 8 V Short-circuit current > 200.0 mA The insulation specification Measurement range 0.01 MΩ to 2000 MΩ Testing voltage 500 V,1000 V Test voltage accuracy + 20%, - 0% Short-circuit current 1 mA(nominal) Self discharge Discharge time < 0.5 seconds, C = 1 µF or less Live circuit indicator Before initializing the test, if the terminal voltage is > 30 V, conduct the suppression test Maximum capacitive load The load can be operated under 1 µF Measurement accuracy 500 V ±(1.5% + 5) 1000 V Below 2000 MΩ ,±(1.5% + 5), Above2000 MΩ, ±(10% + 3) General technical index Maximum voltage applied to any terminal 600 V AC rms or DC Storage temperature -40 °C to 60 °C(-40 °F to 140 °F) Operating temperature -20 °C to 55 °C(-4 °F to 131 °F) Temperature coefficient When temperature < 18 °C or > 28 °C(< 64 °F or > 82 °F), 0.05x (specified accuracy)/°C Relative humidity 10 °C to 30 °C(50 °F to 86 °F), 0% to 95% 30 °C to 40 °C(86 °F to 104 °F), 0% o 75% 40 °C to 55 °C(104 °F to 131 °F), 0% to 40% Vibration Random, 2 g, 5-500 Hz, according to mil-prf-28800f 2 class instrument Impact 1 meter drop as per IEC 61010-1, 2nd version (1 meter drop test, 6 sides, oak floor) Electromagnetic compatibility Accuracy = specified accuracy in a 3 V/M rf magnetic field (EN 61326-1:1997) Security According to ANSI/ISA 82.02.01 (61010-1) 2004, CAN/ csa-c22.2 NO. 61010-1-04, and IEC/EN 61010-1, 2nd version, class IV measurement 600 V (CAT IV) Certificate CSA according to the standard CSA/CAN C22.2 No. 61010.1-04; TUV is in accordance with the standard IEC/EN 61010-1, 2nd version Battery 4 x  AA batteries (NEDA 15A or IEC LR6) (not included) Battery life Insulation test purpose At room temperature, the new alkaline battery can perform at least 1,000 insulation tests on the instrument. The results of the standard is in 1000 V through 1 M Ω resistance measured, under the condition of the cycle time for 5 seconds, 25 seconds. Resistance measurement At room temperature, the new alkaline battery can be used for at least 2500 grounding connection insulation measurements. The results of the standard is in the case of 1 Ω resistance measured, the cycle time for 5 seconds, 25 seconds. Size(H x W x L) 5.0 x 10.0 x 20.3 cm /1.97 x 3.94 x 8.00 in Weight 550 g /1.2 lb IP protection grade IP40 Altitude Working altitude 2000 m CAT IV 600 V, 3000 m CAT III 600 V Non-operational (storage) 12000 m Excess capacity 110% range