NR2500 Series Pointer Insulation Resistance Tester

NR2500 Series  Pointer Insulation Resistance Tester

Classification: Earthing/Insulation/SF6 Gas Detection

Reference standard: JJG662-89

Verification:  View the certificate

Instructions:  DOC Instructions

  PDF Instructions

Tel: 027-87207771 87207772 87207773 87188862

Verification certificate
Product introduction
With the rapid development of China's power industry, electrical equipment preventive experiment is an important part in protecting the safety operation of power system and maintenance. Insulation diagnosis is an important method to detect insulation defects or failure. Pointer insulation resistance tester is the special instrument to measure insulation resistance. JJG662-89 "insulation resistance meter (megger)" approved in May 1990 requires that insulation resistance meter is one of compulsory verification instruments. Nowadays the development trend of electrical equipment (such as transformers, generators, etc.) is that high capacity, high voltage, diversified structure and better seal. So insulation resistance meter (pointer) itself must have the characteristics such as large capacity, strong anti-interference ability, diversified measurement indexes, accurate measurement results, easy and fast measurement process, easy to carry and so on. The instrument produced by our company is equipped with ultra-thin taut suspension meter. It is an ideal tester to measure insulation resistance of these equipments such as transformer, instrument transformer, generator, HV motor, power capacitors, power cables, arrester, etc
Alternative name
Digital megger pointer megger, insulation sheet, digital pressure megger, high voltage insulation resistance tester, insulation resistance meter, insulation characteristics tester, electric shake table, electronic insulation resistance tester, high-power high-voltage trillion Europe table,digital insulation tester,megohmmeters,insulation resistance testers,Insulation Tester,Digital High Voltage Insulation Tester,Digital megohmmeter,Digital Insulation Resistance Tester
The Characteristics of the products
(1) The instrument is used to do insulation test: when the voltage is 500V, the maximum tested value will up to 20GΩ; when the voltage is 1000V, the value will up to 40GΩ; when the voltage is 2500V, the value will up to 100GΩ.
(2) When rated output voltage of NR2501 tester continuously load, the resistance can be as low as 4MΩ/8MΩ/20MΩ, which makes the instrument can measure the low insulation resistance accurately.
(3) Double scale indication can be converted automatically, colorful LED display for easy reading.
(4) ABS plastic casing and portable design with anti-interference ability, compact structure, attractive appearance.
(5) The instrument uses ultra-thin sheets silk headers, seismic resistance.
(6) AC-DC dual-use, built-in rechargeable battery and intelligent charging module, ensuring high output power(C type).
(7) It is an ideal tester to measure insulation resistance of these equipments such as transformer, instrument transformer, generator, HV motor, power capacitors, power cables, arrester, etc.
The parameters of the products

Model
NR2501 / NR2520
NR2550
NR2503
Output Voltage
500V  DC
1000V DC
2500V DC
2500V DC
5000V DC
5000V DC
10000V DC
Accuracy
Temperature
23℃±5℃
Insulation Resistance
1MΩ~20GΩ
2MΩ~40GΩ
5MΩ~100GΩ
5MΩ~100GΩ
10MΩ~200GΩ
10MΩ~200GΩ
20MΩ~400GΩ
±5%
Output voltage
4MΩ~20GΩ
8MΩ~40GΩ
20MΩ~100GΩ
20MΩ~100GΩ
40MΩ~200GΩ
40MΩ~200GΩ
80MΩ~400GΩ
0~+10%
High short-circuit current
≥1mA
Power supply
8 AA batteries
Working temperature and humidity
-10 ℃ ~ 40 ℃, the maximum relative humidity of 85%
Storage temperature and humidity
-20 ℃ ~ 60 ℃, the maximum relative humidity of 90%
Insulating Property
Insulation between the circuit and the voltage of 1000V DC case, Max. 2000MΩ
Pressure-Resistant Properties
Can bear 1min when the voltage is 2500 AC between shell and circuit
Dimensions
230mm×190mm×90mm  (L×W×H)
Weight
2kg
Accessories
A set of test line, a manual, certificate, charging adapter

Power supply: AC110V/115V/120V/127V/220V/230V/240V optional
Input frequency: 50Hz/60Hz optional
Note: The users can select the corresponding power which based on their local supply voltage and frequency, and we will confirm it before the delivery (or inform us that the goods will be used in which country advance)

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