ETCR3520 High Voltage Insulation Resistance Tester

Main Functions

Suitable for insulation resistance(IR) testing of cable, motor, generator, transformer, mutual inductor, high voltage switch, arrester and other large equipment, measurement of polarization index(PI), dielectric absorption ratio(DAR), Step test(STEP), Ramp test(RAMP), Dielectric discharge index, Distributed capacitance (CAP) and AC/DC Voltage test(V).
Output rated voltage: 50V, 250V, 500V, 1kV, 2.5V, 5kV
Insulation resistance measurement range: 0.005MΩ~10TΩ
Short circuit current: 7mA MAX
Voltage measurement range: DC:0V~1000V; AC:0V~700V
Custom setting voltage
Custom setting time
Memory: data storage 1000 groups
True-color touch screen
Rechargeable lithium battery

Consult Immediately

Product Introduction
Technical Parameter
Model comparison
Data download

Product Introduction

ETCR3520 High Voltage Insulation Resistance Tester, also known as high voltage megohm meter and high voltage insulation resistance meter, The tester has complete various insulation resistance index test functions, self-set test voltage function, and good anti-interference ability. It has obvious advantage in substation and other environments with strong induction and large distributed capacitance. The instrument equip with true-color touch screen, and all test data and battery power are displayed on the same screen which is clear and obvious, the combination of the rotary switch and the button makes the operation very simple. The user does not need to memorize the operation method, and the operation method will pop up by clicking the "HELP" button on the screen, effectively guiding the user to operate the instrument. The tester is suitable for insulation resistance testing of large-scale equipment such as electrical equipment and transmission lines in large-capacity, high-voltage, and strong-inductive environments. It is a commonly used and indispensable instrument in the departments of electric power, telecommunications, meteorology, computer rooms, oil fields, electromechanical installation and maintenance, and power supply departments of industrial and mining enterprises. The test timer of the instrument automatically records the test time and stores the test results with date and time.The touch screen can easily check the recorded historical data. The completely isolated USB interface and Bluetooth communication can safely upload the test data to the PC or mobile phone for users to analyze data. The instrument provide with the test lines of double-layer insulation and shielding layer, and the high-voltage rod is equipped with replaceable alligator clips and hooks, which can be adapted to various test sites, The instrument adopt with solid double-layer shell structure. and the protection level of the case is lP65, which can prevent the intrusion of moisture and dust during transportation and storage, and prevent impact and effectively protect the instrument.
1.5 inch true-color touch screen, test data is displayed on the same screen, can easily check the test operation and the recorded historical data.
2.50V, 250V, 500V, 1kV, 2.5kV, 5kV 6 gears rated output voltage in total, wide measurement range 0.005MΩ~10TΩ. Max short circuit current: 7mA
3.Large output power, strong anti-interference ability. It has stable testing capabilities in scenario with large distributed capacitance (such as long cable) and in environment with strong electromagnetic interference (such as substation).
4.Complete measurement indicator: Insulation Resistance(IR), Polarization Index(PI), Dielectric Absorption Ratio(DAR), Step Test(STEP), Ramp Test(RAMP), Dielectric discharge index, Distributed capacitance (CAP) and AC/DC Voltage(V).
5.Self-set test function: can choose PI, DAR and DD calculation formulas to provide user with a variety of options.
6.Self-set voltage function(VS): test voltage and test time can be freely set to facilitate the need of special scenario.
7.Voltage monitor: automatically monitor the voltage of the tested object. When the voltage is larger than 36V, the test is prohibited to protect the safety of the instrument and the operator.
8.Current monitor: automatically display the testing loop current.
9.Temperature monitor: automatically display the temperature and humidity in the instrument box.
10.Automatic discharge function, automatically and quickly releases the charging charge of the tested object, no need external discharge circuit.
11.Large capacity rechargeable lithium battery pack 14.8v 6400mAh guarantee long-term testing work.
12.Large capacity test record memory, the test record can be browsed and analyzed directly in the tester and automatically records 1000 groups real-time test data with test date and test time.
13.USB communication upload function, recorded data can be uploaded to PC for statistical analysis of stored data.
14.Bluetooth communication function, can upload the test data to mobile phone.
15.protection level IP65(when the cover is closed).

Technical Parameter

1. Measurement Range & Accuracy

Output Voltage	Insulation Resistance Measurement Range	Measurement Accuracy
50V	0.005MΩ~10.0GΩ	±5%rdg±3dgt
50V	10.0GΩ~100GΩ	±10%rdg±3dgt
250V	0.05MΩ~50.0GΩ	±5%rdg±3dgt
250V	50.0GΩ~500GΩ	±10%rdg±3dgt
500V	0.10MΩ~100GΩ	±5%rdg±3dgt
500V	100GΩ~1.00TΩ	±10%rdg±3dgt
1kV	0.50MΩ~200GΩ	±5%rdg±3dgt
1kV	200GΩ~2.00TΩ	±10%rdg±3dgt
2.5kV	1.00MΩ~1.00TΩ	±5%rdg±3dgt
2.5kV	1.00TΩ~5.00TΩ	±10%rdg±3dgt
5kV	2.00MΩ~2.00TΩ	±5%rdg±3dgt
5kV	2.00TΩ~10.0TΩ	±10%rdg±3dgt

2. Technical Specifications

Power Supply	Rechargeable lithium battery 6400mAh 14.8V
Display Mode	5 inch TFT true-color touch screen
Insulation Resistance Test Range	0.005MΩ~10.0TΩ
Output Voltage Gear	50V, 250V, 500V, 1kV, 2.5kV, 5kV
Output Voltage Accuracy	(5%~10%) ±10V
Voltage Measurement Range	Range: DC:0V~1000V; Range: AC:0V~700V;
Voltage Measurement Accuracy	Accuracy ±5%rdg±3V
Capacitance Test Range	Range: 10nF～200uF;
Capacitance Test Accuracy	Accuracy ±10%rdg±10nF
Real Time Current Display	Display the test current value, current display range: 0.001nA~7.5mA
Short Circuit Current	7mA MAX
Real Time Voltage Display	Real time monitoring the voltage of the tested terminal,in the non-test state, when the voltage is larger than 36V, the test is prohibited to protect the safety of the instrument and the operator.
Test Timer	Automatic record test time, time range: 0s~9999s
Test Time	After selecting the DAR, PI test options, the test will be stopped immediately after the test result is obtained; in the custom test mode, the test duration can be set by user: in the normal test mode, the test time is not limited, and the operator can manually stop the test.
Custom Setting Test Time	10s~3600s
Self-set Output Voltage	40V~5kV
Polarization Index(PI)	YES
Dielectric Absorption Ratio(DAR)	YES
Step Test(STEP)	YES
Ramp Test(RAMP)	YES
Dielectric Discharge (DD)	YES
Store Function	Automatically store the test data 1000 groups, which can reply the test record in tester
USB Communication	Yes, the test record can upload to the PC through USB cable
Bluetooth Communication	Yes, can be connected to Android phones or other devices with Bluetooth communication function.
Battery Power Display	With battery power display, when battery voltage low will remind to charge in time
Automatic Shutdown	After 15 minutes start up will shut down automatically without any operation
Tester Dimension	About 280mm×260mm×160mm
Tester Weight	Instrument weight: about 3356g(include battery); total weight: about 5.7kg(include accessory)
Protection Level	Close the case IP65, open the case IP40
Insulation Resistance	50MΩ (1000V)(between the test circuit and shell)
Withstand Voltage	AC 3kV 50Hz 1min(between the test circuit and shell)
Suitable Safety Standard	IEC61010-1, IEC61326-1
Working Environment	-20℃～50℃; 80%RH
Store Environment	-25℃～65℃; 80%RH

Model comparison

Product Picture	Product Model Name	Test Current	Output Voltage	Resistance Range	Test Function	Bluetooth	USB
	ETCR3500 High Voltage Insulation Resistance Tester	5mA	50V~5kV	0.005MΩ~5TΩ	Polarization index Dielectric absorption ratio Ramp test Step test Voltage	Yes	Yes
	ETCR3500B High Voltage Insulation Resistance Tester	5mA	50V~10kV	0.005MΩ~10TΩ	Polarization index Dielectric absorption ratio Ramp test Step test Voltage	Yes	Yes
	ETCR3520 High Voltage Insulation Resistance Tester	7mA	50V~5kV	0.005MΩ~10TΩ	Polarization index Dielectric absorption ratio Ramp test Step test Voltage Discharge Dielectric Capacitance	Yes	Yes
	ETCR3520B High Voltage Insulation Resistance Tester	7mA	50V~10kV	0.005MΩ~20TΩ	Polarization index Dielectric absorption ratio Ramp test Step test Voltage Discharge Dielectric Capacitance	Yes	Yes
	ETCR3520C High Voltage Insulation Resistance Tester	7mA	50V~15kV	0.005MΩ~30TΩ	Polarization index Dielectric absorption ratio Ramp test Step test Voltage Discharge Dielectric Capacitance	Yes	Yes

Data download

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ETCR3520 High Voltage Insulation Resistance Tester

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