Huatian GM-20kv Insulation Resistance Tester, Digital Ohm Meter, Intelligent Megohmmeter

• Display Type: Digital Only
• Certification: CE
• Customized: Customized
• Model NO.: GM-20KV
• Test Voltage: 0.5,1,2.5,5,10,20kv
• Voltage Accuracy: ±(5%+10V)
• Short-Circuit Current: 10mA
• Range: 20mΩ - 2000gΩ
• Resistance Measurement Range: 0.5 - 1999 GΩ by Subsection
• Accuracy: ±(5%+5digital)
• Anti-Electric Field Interference Ability: 2mA(50Hz)
• Display: Three and a Half Bits LCD
• Power Supply: 10×1.2vbattery DC12V AC: 220V (50/60Hz)
• Temperature: 0~40ºC
• Relative Humidity: 20~90%
• Dimension: 315×240×155mm3
• Weight: 5kg
• Colour: Green
• Type: Automatic
• Transport Package: Carton
• Specification: see details
• Trademark: HV TEST
• Origin: China
• HS Code: 9030899090
• Production Capacity: 300 Sets Per Month
• Package Size: 31.50cm * 24.00cm * 18.00cm
• Package Gross Weight: 8.000kg

Product Description

Product overview
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.

 Products 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 ~ 200000MΩ. With high-resolution, having 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. With timekeeping function, remind users to record, and analyze absorptance and polarization index of measured target.

Technique parameters
1. Technique specifications

Model	Test voltage	Voltage accuracy	Short-circuit current
GM-5kV	0.25,0.5,1,2.5,5kV	±(5%+10V)	10mA
GM-10kV	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

2. Range and accuracy

Range	Resistance measurement range	Accuracy
20MΩ/500V	0.5~19.99  MΩ	±(5%+5digital)
200MΩ/1000V	5.0~199.9  MΩ	±(5%+5digital)
2GΩ	0.05~1.999 GΩ	±(5%+5digital)
20GΩ	0.5~19.99  GΩ	±(5%+5digital)
200GΩ	5.0~199.9  GΩ	±(10%+10digital)
2000GΩ	50~1999  GΩ	Less than 1000GΩ ± (20% + 10 digital) (humidity ≤70%)

Calibration voltage of MΩ range is 0.5kV; Calibration voltage of GΩ range is 2.5kV
 

Anti-electric field interference ability	2mA(50Hz)
Timekeeping and alarm function	maximum 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
Display	three and a half bits LCD digital meter (three), respectively show test voltage, test resistance, test time
Power supply	10×1.2Vbattery(2000mAh Ni-MH rechargeable battery), total DC12V power supply AC: 220V (50/60Hz)
Operating Conditions	Temperature:0~40ºC	Relative humidity:20~90%
Dimension	315×240×155mm^3
Weight	5kg

Common problem
1. Is your company a sales company or a manufacturer?
Wuhan Huatian Electric Power Automation CO., LTD.is an industrial and trade enterprise, with its own  factory, self-produced and self-sold. We were founded in 2004 and have fifteen years of production experience. Our company has reliable production lines, test rooms and R&D centers.

2. Whether the goods are in stock, whether they can be customized, and how long the delivery time is.
After the goods have been ordered, we can be made to order according to the special requirements of customers by using the latest technology. The delivery time is usually within 10 working days if there are no accidents.

3. Is the quality guaranteed?
In order to ensure quality, we use imported components in large quantities. After three times of quality inspection, the goods can be sent out, and the export is uniformly packed in non-fumigation wooden boxes.

4. What are the after-sales terms?
We offer free consulting service, one year warranty, and adopt various methods such as email communication, video calls, technology door-to-door, aiming to solve any after-sales problems in a timely manner.

5. What are the cooperative countries or regions?
Products have been successfully exported to the United States, Brazil, Australia, Russia, the Netherlands, Indonesia, Bangladesh, Iran, India, Saudi Arabia, Mongolia, Japan and other countries and regions. In the United States, India, Vietnam and other regions have cooperative distributors, can provide thoughtful services.


Contact us

Wuhan Huatian Electric Power Automation CO., LTD

Address: T4, No. 1, High-tech 2 Road,East Lake High-tech Development Zone,Wuhan
Zip code: 430074
Tel:[phone]
Fax: [phone]