"The C.A 6543 Megohmmeter supports extreme site conditions and is expert in qualitative insulation analysis. The CA 6543 is a 50V to 1kV high performance insulation tester.Insulation: up to 4TΩ (5 cal.) at 50 \/ 100 \/ 250 \/ 500 and 1000V DC. Automatic calculation of insulation quality ratios: DAR and PI. Programmable test period and plottingof the R(t) curve. Automatic indication of voltage before and after measurement: 1 to 1000V AC \/ DC. Resistance: 0.01Ω to 400kΩ. Continuity: 0.01Ω to 40Ω (audible beep and lead compensation ) . Automatic capacitance measurement after each insulation measurement: 0.005 to 4.999µF. Microprocessor-controlled. Memorisation of measurements (128KB). Bi-directional RS232. LCD screen with digital display and bargraph. Backlit display. SMOOTH function (smoothing of values displayed). Possibility of locking insulation test voltages. Programmable alarms. Long battery life due to rechargeable battery with built-in charger. Remote control probe available (optional)Tester Type = Insulation TesterMinimum Test Voltage = 50VMaximum Test Voltage = 1000VMaximum Insulation Resistance Measurement = 4TOhmsDisplay Type = DigitalTest Current = 200mAPower Source = BatterySafety Category Level = CAT IIISafety Category Voltage = 600VSafety Category = CAT III 600 V"