Sxgz-a High Precision Power Testing System Resistance Meter
Calibrator
General information:
SXGZ-A Insulation Resistance Meter Calibrator is the reference
instrument to calibrate insulation resistance meter. The output
maximum limitation is 200GΩ, nominal working voltage is 5kV. It's
suitable for all models pointer type insulation resistance meter.
Features:
√ LCD screen
√ The open circuit voltage, mid-value voltage and peak value
voltage are all measurable.
√ Designed with independent leakage shield terminal and ground
terminal, no obvious unstable, short circuit and open circuit.
√ High performance switch, long life service.
√ Long service life HV switchgear.
Specifications:
Resistance output (HV Hi-Resistance Box)
√ Accuracy degree and working voltage (current)
| Resistance Value | 100GΩ | ×10GΩ | ×1GΩ | ×100MΩ | ×10MΩ | ×1MΩ |
| Accuracy Degree | 5 | 5 | 2 | 1 | 0.5 | 0.2 |
| Nominal Voltage | 5000V | 5000V | 5000V | 5000V | 2500V | 1000V |
| Resistance Value | ×100kΩ | ×10kΩ | ×1kΩ | ×100Ω |
| Accuracy Degree | 0.2 | 0.2 | 0.2 | 0.2 |
| Nominal Current | 1mA | 8mA | 20mA | 50mA |
√ Adjusting range: 100Ω~200GΩ, adjusting fineness: 100Ω
√ Working Condition:
Reference temperature range: 20~25ºC
Reference humidity range: 40%~60%
Nominal working temperate range: 18~28ºC
Nominal working temperature range: 25%~70%
Resistance variation limitation:
| Influence | Nominal working range | Allowed variation |
| Environmental Temperature | 18~28ºC | a/2 % |
| Relative Humidity | 25%~70% | ≤10GΩ a/2 % >10GΩ a% |
| Working Voltage | (1~1/5)nominal voltage | ≤10GΩ a/2 % >10GΩ a% |
Note: "a" is the accuracy degree of output resistance meter.(a's
value is according to different resistance meter)
√ 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 11kV,
test 1 min, no breakdown and flashover.
√ Residual resistance of input terminal should be <0.1Ω,
variation <0.01Ω.
√ Oversize: 442mm×270mm×145mm
√ Weight: <5kg
Voltage measuring (HV DC Digital Voltmeter):
√ Measuring range: 0~5000V
√ Accuracy: ±(1 % read ±1 digit)
√ Power Supply: DC9V
√ Input resistance: ≥10GΩ
Warranty: One year quality guarantee after shipment.
More information, please kindly contact with us, we can customize
the suitable test set according your requirements and give you the
best quotation. Thank you!
