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WUHAN GUODIAN ZHONGXING ELECTRICAL POWER EQUIPMENT CO., LTD.

High Voltage Digital Megohmmeter, Digital Megohmmeter, Megohmmeter manufacturer / supplier in China, offering GM Adjustable High Voltage Digital Megohmmeter, Electricity Meter Handheld Single Phase Three Phase Power Quality Analyzer, Three-phase Multifunction power check meter reference energy meter and so on.

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GM Adjustable High Voltage Digital Megohmmeter

FOB Price: US $1,700-3,100 / Piece
Min. Order: 1 Piece
Min. Order FOB Price
1 Piece US $1,700-3,100/ Piece
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Port: Wuhan, China
Production Capacity: 5000PCS/Month
Payment Terms: L/C, T/T, Western Union

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Basic Info
  • Model NO.: GM
  • Display: Blue LCD
  • Trademark: GDZX
  • Origin: China
  • Warranty: 1 Year
  • Net Weight: 5kg
  • Transport Package: Carton
  • HS Code: 9030332000
Product Description
Introduction
 
For safety, before use the instrument must be well earthed. That's because the measured target connects to high voltage power, and exists power frequency leakage. 
Once high voltage has started, do not use manual discharge method to check the instrument. After test, please wait the instrument completes automatic discharge and automatically returns to zero, then manual discharge can be operated. That is because electrical pulse caused by short-circuit discharge will damage the insulation life of the measured object; if the pulse fleeing into the instrument, will also damage the integrated circuit inside the instrument.
The instrument is designed for HV substations and power plants to test the characteristic of large HV transformer, electric machines and appliances, remote power cable or buried cable and other electrical insulation resistance in strong interference environment. It also can be widely used for testing characteristics of insulation resistance in other area.

 
Features
 
1. With strong anti-electric field interference ability up to 2mA (50Hz), it is suitable for 500kV substation without dismantling wire to test insulation resistance of 500kV large-scale transformer.
2. The short-circuit current of test power> 5mA, maximum up to 15mA. Be suitable for testing high capacity and high inductance.
3. Wide resistance range from 0.5MΩ ~ 2000GΩ. High-resolution, high accurate readings. 

4. Wide voltage range: 0.25kV, 0.5kV, 1kV, 2.5kV, 5kV, 10kV, 15 kV, 20kV, you can smoothly adjust voltage from 0V to the desired value.
5. Timekeeping function, can remind users to record, and analyze absorptance and polarization index of measured target.
 
Parameters
 
1. specifications:
ModeTest voltageVoltage accuracyShort-circuit current
GM-5kV0.25,0.5,1,2.5,5kV±(5%+10V)>5mA
GM-10kV0.5,1,2.5,5,10kV±(5%+10V)>5mA
GM-15kV1,2.5,5,10,15kV±(5%+10V)>5mA
GM-20kV0.5,1,2.5,5,10,20kV±(5%+10V)>5mA
2. Range and accuracy
RangeResistance measurement rangeAccuracy
20MΩ/500V0.5~19.99  MΩ±(5%+5d)
200MΩ/1000V5.0~199.9  MΩ±(5%+5d)
2GΩ0.05~1.999 GΩ±(5%+5d)
20GΩ0.5~19.99  GΩ±(5%+5l)
200GΩ5.0~199.9  GΩ±(10%+10d)
2000GΩ50~1999  GΩ± (20% + 10d) (humidity ≤70%)
Calibration voltage of MΩ range is 0.5kV; Calibration voltage of GΩ range is 2.5kV
Anti-electric field interference ability2mA(50Hz)
Timekeeping and alarm functionmaximum value of stopwatch is 19 minutes and 59 seconds. 20 minutes for a cycle. The stopwatch will tell the time at these time points: 15 seconds, 60 seconds and every 60 seconds. When telling time, resistance readings hold for 5 seconds. If the measured resistance is below the lower limit of range, the reading is invalid and the instrument will continuously sound to give an alarm
Displaythree and a half bits LCD digital meter (three), respectively show test voltage, test resistance, test time
Power supply10×1.2Vbattery(2000mAh Ni-MH rechargeable battery), total DC12V power supply
AC: 220V (50/60Hz)
Operating ConditionsTemperature:0~40ºCRelative humidity:20~90%
Dimension315×240×155mm3
Weight5kg
 
 
GM Adjustable High Voltage Digital Megohmmeter

 
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