Description

New Model

 

Classic Model

 

HDGM-5KV/ HDGM-10KV/ HDGM-15KV/ HDGM-20KV HV Digital Megohmmeter

 

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 ~ 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.

 

HDGM-5KV HV Digital Megohmmeter

Parameters

1. Technique specifications

Mode	Test voltage	Voltage accuracy	Short-circuit current
HDGM-5kV	0.25、0.5、1、2.5、5kV	±（5%+10V）	10mA
HDGM-10kV	0.5、1、2.5、5、10kV	±（5%+10V）	10mA
HDGM-15kV	1、2.5、5、10、15kV	±（5%+10V）	10mA
HDGM-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：0～40℃	Relative humidity：20～90%
Dimension	315×240×155mm3
Weight	5kg

 

HDGM-10KV HV Digital Megohmmeter

Parameters

1. Technique specifications

Mode	Test voltage	Voltage accuracy	Short-circuit current
HDGM-5kV	0.25、0.5、1、2.5、5kV	±（5%+10V）	10mA
HDGM-10kV	0.5、1、2.5、5、10kV	±（5%+10V）	10mA
HDGM-15kV	1、2.5、5、10、15kV	±（5%+10V）	10mA
HDGM-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：0～40℃	Relative humidity：20～90%
Dimension	315×240×155mm3
Weight	5kg

 

HDGM-15KV HV Digital Megohmmeter

Parameters

1. Technique specifications

Mode	Test voltage	Voltage accuracy	Short-circuit current
HDGM-5kV	0.25、0.5、1、2.5、5kV	±（5%+10V）	10mA
HDGM-10kV	0.5、1、2.5、5、10kV	±（5%+10V）	10mA
HDGM-15kV	1、2.5、5、10、15kV	±（5%+10V）	10mA
HDGM-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：0～40℃	Relative humidity：20～90%
Dimension	315×240×155mm3
Weight	5kg

 

HDGM-20KV HV Digital Megohmmeter

Parameters

1. Technique specifications

Mode	Test voltage	Voltage accuracy	Short-circuit current
HDGM-5kV	0.25、0.5、1、2.5、5kV	±（5%+10V）	10mA
HDGM-10kV	0.5、1、2.5、5、10kV	±（5%+10V）	10mA
HDGM-15kV	1、2.5、5、10、15kV	±（5%+10V）	10mA
HDGM-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：0～40℃	Relative humidity：20～90%
Dimension	315×240×155mm3
Weight	5kg

 

FAQ:

1. When can I get the price?

We usually quote within 6 hours work time after we get your inquiry. If you are very urgent to get price, please call us or tell us in your email so that we will regard your inquiry priority.

2. What about the delivery time for production?

Honestly, it depends on the order quantity and the product. Usually our leading time is within 7 working days after order confirmation.

3. What is your payment terms?

We accept EXW, FOB, CFR, CIF, DDU, ect. You can choose the one which is the most convenient and cost effective for you.

4. How much will the Shipping cost and time be?

This will depend on size of your goods and method of shipping (by sea/ by air/by Express) and your designated seaport or airport. We will be grateful if you can spare us some minutes to evaluate the cost based on the information of product.

5. Could you please tell me the Warranty Period of your product?

Our warranty period is one year free and lifelong maintenance. If the product is damaged (if not man-made damage), in the first year,we will send free parts for replacement. Over warranty, maintenance is paid service.

6. Do you have Technical Backup to all customers from different countries?

To be sure,our technical support is always available and quick response.
We are manufacturer with much on-site testing experience, thus we know how to deal with your problems. Moreover, our engineers can go to your country to support if needed.