Megger MIT481-EN Insulation Tester, 200 Gigaohms Resistance, 50V, 100V, 250V, 500V, 1000V Test Voltage

The Megger insulation and continuity testers has been designed for electrical testing by power utilities, industrials, telecommunication companies, commercial/domestic electricians and anyone with unique test voltage requirements. The wide range of features also makes it ideal for maintenance technicians and engineers. Designed to cope with the additional requirements of the telecommunications industry, insulation testing as standard, plus higher voltages as required. In addition, the voltage detection test inhibit feature has been raised to 75 V (from 50 V), to allow testing of cables with coactivity coupled induced voltages, which would normally inhibit such testing with a 50 V protected instrument. It includes measurement of cable distance by capacitance, providing a convenient cable length without the need to use TDR technology. CAT IV 600 V rating - provides greater safety when testing at higher voltage levels. Dual digital display readout - allows display of complimentary test information simultaneously. Adjustable continuity limit alarm - allows pass/fail limits to be sent to speed testing. Auto fuse warning - warns of fuse failure automatically. No need to test the fuse manually. Buzzer select button - enable or disable buzzer as required with resistance also displayed on the screen. Specification: Nominal test voltage: 50 V, 100 V. Frequency: 40 - 450 Hz (40 Hz - 99.9 Hz) +/-0.5 percent +/-1 digit (100 Hz to 450 Hz). Result storage: Capacity: >1000 test results. Power supply: 5 x 1.5 V cells type IEC LR6 (AA, MN1500, HP7, AM3 R6HP) Alkaline NiMH rechargeable cells. Battery life: 2200 insulation tests with duty cycle of 5 sec ON /55 sec OFF at 1000 V into 1 M Ohms. Measures 8.66" length by 3.63" width by 1.97" height. The instruments meet EN 61010-1 (1995) to 600 V phase to earth, Category IV. Refer to safety warnings supplied. E.M.C.: in accordance with IEC 61326 including amendment No.1.