NR2501 Series Insulation Resistance Tester (Pointer type)

1. Product introduction

NR2501 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.

2. Product feature

(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.

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

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