NR2500 Series insulation resistance tester adopts ultra-thin stretched wire meter head multiple voltage level output large capacity strong anti-interference AC and DC dual purpose (C type) simple operation and time prompt function. It is an ideal testing instrument for measuring insulation resistance of transformers instrument transformers generators high-voltage motors power capacitors power cables lightning arresters etc.

Overview

Product Introduction


NR2500 Series insulation resistance tester adopts ultra-thin stretched wire meter head multiple voltage level output large capacity strong anti-interference AC and DC dual purpose (C type) simple operation and time prompt function. It is an ideal testing instrument for measuring insulation resistance of transformers instrument transformers generators high-voltage motors power capacitors power cables lightning arresters etc.

Product Characteristic

(1) Wide range of insulation resistance: 
when the output voltage is 500V the insulation resistance can be up to 20GΩ;
when the output voltage is 1000V the insulation resistance can be up to 40GΩ;
when the output voltage is 2500V the insulation resistance can be up to 100GΩ;
(2) If keep the instrument at the rated output voltage the load resistance can be as low as 4MΩ / 8MΩ / 20MΩ this makes the instrument can accurately measure lower insulation resistance.
(3) Automatic conversion of high and low range of dual scale indicator color scale is easy to read and LED display the corresponding color.
(4) The whole machine adopts ABS plastic casing design with the characteristics of strong anti-interference ability compact structure and beautiful appearance.
(5) The instrument using ultra-thin wire tension meter strong seismic ability.
(6) AC / DC built-in rechargeable battery and intelligent charging module the output power is great (C type).
(7) It is a perfect instrument for test insulation resistance of transformer instrument transformer generator HV motor electric power cable surge arrester and so on.
 

Models

 
Model NR2501 NR2550
Output voltage 500V DC 1000V DC 2500V DC 2500V DC 5000V DC
Accuracy Temperature 23℃ ± 5℃
Insulation resistance 1MΩ~20GΩ ±5% 2MΩ~40GΩ ±5% 5MΩ~100GΩ ±5% 5MΩ~100GΩ ±5% 10MΩ~200GΩ ±5%
Output voltage 4MΩ~20GΩ 0~ +10% 8MΩ~40GΩ 0~+10% 20MΩ~100GΩ 0~+10% 20MΩ~100GΩ 0~+10% 40MΩ~200GΩ 0~+10%
Short circuit current ≥ 1mA
Power supply 8*1.5V (AA R6) battery
Operating temperature and humidity -10℃~40℃ Max RH: 85%
Storage temperature and humidity -20℃~60℃ Max RH:90%
Insulation performance When the voltage between circuit and outside shell is1000V DC the maximum insulation resistance is 2000MΩ
Withstand voltage performance When the voltage between circuit and outside shell is 2500V AC it can withstand for 1 minute.
Dimension 230mm×190mm×90mm (L×W×H)
Weight 2kg
Accessories
Test wire: 1 set
Operation manual: 1 copy
Warranty card / qualified certificate: 1 copy
 

Company Profile

Wuhan NANR Electric Co., Ltd.

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