Model Test voltage* Voltage accuracy Short circuit current GM-5kVB 0.25, 0.5, 1, 2.5, 5kV ±(5%+10V) 10mA GM-10kVB 0.5, 1, 2.5, 5, 10kV ±(5%+10V) 10mA GM-15kV 1, 2.5, 5, 10, 15kV ±(5%+10V) 10mA GM-20kV 0.5, 1, 2.5, 5, 10, 20kV ±(5%+10V) 10mA *--The test voltage can be smoothly and continuously adjusted from 0 volts to the required value. 2. Range and accuracy: Type Measure Resistance measurement Accuracy* GM-5kVB 20MΩ 0.01 to 19.99 MΩ ±(5%+5 words) 200MΩ 5.0 to 199.9 MΩ 2GΩ 0.05 to 1.999 GΩ 20GΩ 0.5 to 19.99 GΩ 200GΩ 5.0 to 199.9 GΩ ±(10%+10 words) 2000GΩ 50 to 1999 GΩ Below 1000GΩ *-- MΩ range calibration voltage is 0.5kV Metal Cable Management,1U Metal cable management,stainless steel cable management,metal cable tie mount NINGBO UONICORE ELECTRONICS CO., LTD , https://www.uonicore.com
Adjustable high voltage digital megohmmeter principle:
The meter uses a flow ratio meter equivalent to a conventional shaker to measure the insulation resistance. It performs ohmic-to-digital conversion with the division function of the dual-integration digital voltmeter. This technology has a very high anti-interference ability and can test the ohmic reading. The voltage is constant without significant fluctuations in low frequency interference.
The adjustable high voltage digital megohm test voltage 0-5-10-20kV is generated by its excited DC voltage converter circuit with feedback. The test voltage is high, and the powerful automatic adjustment capability is also the ability of the instrument to achieve anti-interference of non-generic instruments.
2. Test the short-circuit current of the power supply is typically 10mA. Adapt to the test of large capacity, large inductance, and the need to resist strong interference.
3. The resistance measurement range is wide, from 0.01MΩ to 2000GΩ, the reading is accurate, reliable, stable and high resolution.
4. Adjustable high-voltage digital megohm test power supply has a wide voltage range, which can be selected from 0.25, 0.5, 1, 2.5, 5, 10, 15, 20kV. In particular, it can be smoothly adjusted from 0V to continuously adjust to the required voltage.
5. With timekeeping function, it is convenient for users to record and analyze the absorption ratio and polarization index of the measured object.
Effective range
GM-10kVB
GM-15kV
GM-20kV
±(20%+10 words)
(humidity ≤ 70%)
GΩ range calibration voltage is 2.5kV
Test voltage range to ensure the accuracy of resistance measurement: 20% or more of the voltage range nominal value.
When the test voltage is higher than 8kV, in order to accurately measure the resistance higher than 20GΩ, the high-voltage electrode conductor exposed to the air should be shielded to avoid the influence of air ionization.
3. Resistance to electric field interference: 2mA (50/60Hz)
4. Timekeeping and alarm function: The maximum value of the stopwatch is 19 minutes and 59 seconds. A cycle of 20 minutes. The sound is reported as 15 seconds, 60 seconds, and every minute. To the short-term sound, the resistance reading is kept for 5 seconds, the measured resistance is lower than the lower limit of the range, and the sound is continuously sounded when the reading is invalid.
5. Adjustable high-voltage digital megohmmeter display table; three-and-a-half-digit LCD digital meter heads, respectively showing test voltage, resistance, and time.
6. Power supply; 10 batteries with 1.2V/2000mAh Ni-MH rechargeable battery, a total of DC12V power supply. With AC (50/60Hz) 220V access port to charge or float the battery.
7. Use environment: Temperature: 0 ~ 40 ° C, relative humidity: 20 ~ 90%
8. Dimensions, weight: 315 × 240 × 155mm, 5kg
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20KV adjustable high voltage digital megohm meter - Instrument Encyclopedia
Product introduction:
Product nickname:
Adjustable high-voltage megohmmeter, adjustable megohmmeter, insulation resistance tester
Features:
1. It has strong resistance to electric field induced interference, reaching 2mA (50Hz). It is known to adapt to the insulation resistance parameters of 500,000 volt large transformers in the 500,000 volt substation.
Technical Parameters:
1. Product specifications