Resistance calibrator SXGZ-B

portabledigitalprecision

SXGZ-B Insulation Resistance Meter Calibrator is the reference instrument to calibrate insulation resistance meter. The resistance output maximum limitation is 20GΩ, nominal working voltage is 3kV, maximum measuring voltage is 3.5kV, input impedance ≥5GΩ. It’s suitable for all models pointer type insulation resistance meter. Features ♦ Designed with independent leakage shield terminal and ground terminal, no obvious unstable, short circuit and open circuit. ♦ High performance switch, long life service. ♦ The open circuit voltage, mid-value voltage and peak value voltage are all measurable. ♦ LCD screen Specifications Resistance output (HV Hi-Resistance Box) ♦ Adjusting range: 100Ω～20GΩ, adjusting fineness: 100Ω ♦ Working Condition: ♦ Reference temperature range： 20～25℃ ♦ Reference humidity range: 40%～60% ♦ Nominal working temperature range: 25%～75% ♦ Insulation Resistance: The resistance value measured under nominal voltage is no less than 5TΩ, this value is the insulation resistance between output circuit and the circuit without any electric connection. ♦ Dielectric strength: Between resistance output circuit with test point, the withstand ability is sine frequency 45~65Hz AC 6kV, test 1 min, no breakdown and flashover. ♦ Residual resistance of input terminal should be ＜0.05Ω, variation ＜0.05Ω. ♦ Oversize： 442mm×270mm×145mm ♦ Weight： 5kg Voltage measuring (HV DC Digital Voltmeter): ♦ Measuring range: 0～3000V ♦ Accuracy: ±（1 % read ±1 digit） ♦ Reading stability: ≤±1 digit ♦ Power Supply: DC9V ♦ Input resistance: ≥5GΩ