NR-5000 Insulation Resistance Tester

NR-5000 Insulation Resistance Tester

Classification: Earthing/Insulation/SF6 Gas Detection

Reference standard:

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Instructions:  DOC Instructions

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Tel: 027-87207771 87207772 87207773 87188862

Verification certificate
Product introduction
Many equipments are asked to do a series of dielectric tests according to electrical testing procedures, such as: cables, motors , generators, transformers, transformers, high voltage switches, surge arresters, insulation resistance test is the first .
In recent years, with the rapid development of power industry , large-capacity increasing use of equipment , using ordinary megger can not detect its insulating properties.
Insulation resistance in proportion to the pressing time during the testing of the large capacity power equipment, longer pressing time maks higher insulation resistance. This phenomenon called absorption phenomenon of insulation. To understand the insulation performance of the test product, firstly, must do its absorption ratio and polarization index test for the next leak , dielectric loss , partial discharge , etc., insulation performance tests to provide security. Wuhan NARI Electric Co., Ltd. in accordance with standardized protocols special launch NR5000 Power Smart insulation resistance tester ( hereinafter referred to as NR5000), for electrical equipment for insulation, absorption ratio, polarization index test, insulation test for the series provide an initial accurate judgments.
Since the charging current is large capacitive directly affects the insulation value of the test sample and therefore require large charging current , charging ability than the test value , the stronger the closer the true value. NR5000 short circuit current is greater than 3mA, to overcome the common type megger short circuit current is small , the test is not accurate, vulnerable to interference and other defects. NR5000 taking timely do division voltage and current sampling operation, it is even during the test voltage changes , the ohmic resistance value theorem is obtained accurately . NR5000 intelligent insulation resistance tester uses advanced MCU control processes, human-machine interface dialogue , easy to carry , easy to operate ; enclosed battery, AC- DC, and has under-voltage protection and battery overcharge protection . The instrument can automatically display the current time , save 8 group of historical test data and time for the trial to provide a great convenience .
NR-5000 Intelligent Insulation Resistance Tester is a new type of intelligent instruments, is the best choice for testing personnel .
Alternative name
Intelligent Insulation resistance tester, insulation resistance tester intelligent, insulation resistance tester, insulation resistance tester
The Characteristics of the products
1 This instrument uses advanced MCU control processes, human-machine interface dialogue, easy to carry, easy to operate; enclosed battery, AC-DC, and has under-voltage protection and battery overcharge protection. The instrument can automatically display the current time, save 8 group of historical test data and time for the trial to provide a great convenience.
2.NR5000 short-circuit current is more than 3mA, to overcome the common type megger short circuit current is small, the test is not accurate, vulnerable to interference and other defects.
3.NR5000 do division by sampling voltage and current timely, this way ensuring the accuracy of the resistance value not influence by the unstable voltage during the test process.
The parameters of the products
1, the output voltage:-DC500V,-DC1000V,-DC2500V,-DC5000V
Error: ± 5% FS (FS is the full scale value);
2, the short-circuit current:> 3mA
3, test accuracy
5 ~ 100MΩ error: ± 5% FS (FS is the full scale value);
100 ~ 10GΩ error: ± 5% FS (FS is the full scale value);
10 ~ 200GΩ error: ± 10% FS (FS is the full scale value);
≧ 200GΩ error: ± 20% FS (FS is the full scale value);
4, conditions of use
Ambient temperature: 0 ℃ -40 ℃
Relative humidity: ≤ 70% RH
5, power scope
AC: 220V ± 10%
6, the size and weight
Dimension: 280mm × 210mm × 100mm;
Weight: <3kg


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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Product information
1 , confirm wiring is correct ( Note: No mop the test line ) before power-on, "high output " light indicates a high voltage output, the non- touch power lines ! Prohibited during the test plug test leads or shorting the output , in order to avoid endangering persons and damage to the instrument .
2 , when measured using the internal battery meter display dim or boot does not show that the battery power is low , should be off the instrument and charging.
Note : The test shows the voltage exceeds the rated voltage selection is large, and for a long time is not stable , please do not take the load test to see if the voltage is normal. If you're not normal , please , charging full of empty again test voltage , the voltage is normal is that the electricity shortage timely charge .
3, the long-term is not used to charge the battery meter should be regularly ( once a month ) . When not in use and when to turn off the charging instrument .
4 , instruments stored in a dry , clean , non-corrosive gas environment .
5 , a large capacitive load test , the test completed to ensure there is enough time to discharge , the discharge is completed behind the detachable test leads . ( Large capacitive load is the best over one minute )
6 , the instrument is not connected test insulation resistance when measured display values generally reach Grade T (1T = 1000G), this value is generally random infinite value , like test the air , do not have practical significance.
7 , if the meter fails, full-time maintenance personnel should be invited to send to the company for repair or not disassemble the instrument , or cause the loss of my company is not responsible .
( Special Note: Do not touch the high voltage during the test output line , test line connected before power-on test . Avoid high output when the test output line shorted. )