ETCR3520/3520B/3520C High Voltage Insulation Resistance Tester
Output Voltage 50V~15kV
Test Resistance 0.005MΩ~30TΩ
Max Short Circuit Current 7mA
Polarization Index Test（PI）
Dielectric Absorption Ratio Test（DAR）
Step Test Mode(STEP)
Ramp Test Mode (RAMP)
Dielectric discharge index(DD)
Capacitance Test（CAP）
Custom Setting Output Voltage
Custom Setting Test Time 10s~60min
Large Capacity Rechargeable Lithium Battery
USB Communication
Bluetooth Communication
Product Function
Suitable for insulation resistance testing of the large-scale electrical equipment and transmission network cable which in large-capacity, high-voltage, and
strong-inductive electrical site.
Insulation resistance test (IR); polarization index test (PI); Dielectric absorption ratio test (DAR); Step test(STEP); Ramp test (RAMP); Dielectric discharge
index test(DD). AC/DC Voltage test(V); Distributed capacitance test(CAP).
Product Features
1. Touch colorful screen, can display the test data on the same screen. It is very convenient to test operation and view history record.
2. With the unique strong anti-interference technology and stable testing capabilities in large distributed capacitance site (such as long cables) and strong
electromagnetic interference environments (such as substations).
3. Perfect measurement index: insulation resistance (IR), polarization index (PI), dielectric absorption ratio (DAR), step (STEP), ramp (RAMP), dielectric
discharge index (DD), distributed capacitance (CAP), AC/DC voltage (V).
4. Custom setting measurement mode, optional PI and DAR calculation formulas, custom setting test voltage and custom setting test duration, which can
provide variety of options to user and convenient the special site request.
5. Voltage monitor: Automatically monitoring the live voltage of the measured object. when the voltage exceed 36V and will automatically prohibit to test to
effectively protect the instrument and the operator.
6. Current monitor: Automatic display the current of test circuit
7. Temperature monitor: Automatic display the temperature and humidity of tester inside.
8. Automatic discharge function, automatically and quickly release the electric charge of the measured object after the test, no need the external discharge
circuit.
9. Large-capacity test record memory, test records can be directly browsed and analyzed in the tester. the tester can automatically store 1000 sets of
real-time test data with test date and test time.
10. USB communication and upload function, the recorded data can be uploaded to the computer for stored statistical analysis.
11. Bluetooth communication function, can upload the test results to the mobile phone.
Insulation Resistance Test Accuracy
Rate Voltage 50V 250V 500V 1000V 2500V 5000V 10kV 15kV
Range & ±5% 10.0GΩ 50.0GΩ 100GΩ 200GΩ 1.00TΩ 2.00TΩ 4.00TΩ 6.00TΩ
Accuracy ±20% 100GΩ 500GΩ 1.00TΩ 2.00TΩ 5.00TΩ 10.0TΩ 20.0TΩ 30.0TΩ
Technical Specifications
Model ETCR3520 ETCR3520B ETCR3520C
50V, 250V, 500V, 1000V. 2500V, 50V, 250V, 500V, 1000V, 2500V, 5000V, 50V, 250V, 500V, 1000V, 2500V, 5000V,
Rated Voltage
5000V 10kV 10kV, 15kV
Output Voltage Accuracy (5%~10%)±10V (5%~10%)±10V (5%~10%)±10V
Insulation Resistance
0.005MΩ~10.0TΩ 0.005MΩ~20.0TΩ 0.005MΩ~30.0TΩ
Range
Short Circuit Current 7mA MAX 7mA MAX 7mA MAX
Power Supply Rechargeable lithium battery pack 6400mAh 14.8V
Capacitance Measurement Range: 10nF~200uF; Accuracy: ±10%rdg ± 10nF
Voltage Measurement Range: 0V~1000V; Accuracy: ± 5%rdg ±3V
ETCR3520: 40V~5kV
Customs Setting Output
ETCR3520B: 40V~10kV
Voltage
ETCR3520C: 40V~15kV
Customs Setting Test Time 10s~3600s
Polarization Index (PI) Yes
Dielectric Absorption
Yes
Ratio (DAR)
Step Voltage(STEP) Yes
Ramp( RAMP) Yes
Dielectric discharge index
Yes
(DD)
Real Time Current Value Display test current value, current display range: 0.001nA~7.5mA
Automatically monitoring the voltage of the measured object. In not-testing state,the voltage over 36V will automatically
Real Time Voltage Value
prohibit to test to protect the instrument and the operator
Test Timer Automatically record test duration, timing range: 0s~9999s
Store Function Automatically store the test date, time , total of 1000 groups, which can view and replay the stored test record
USB Communication Yes, upload the test record to PC through the USB cable
Bluetooth Communication Yes, can connect to the Android mobile or others with the Bluetooth communication function device
Battery Power Indication With the battery power indication, when battery voltage low will remind to charge in time
Automatic Shutdown 15 minutes without any operation after starting up will automatic shutdown
Tester Dimension 280mmX260mmX160mm
Instrument Weight Total weight: 5.72kg (include accessories)
Protection Level Close the case IP65; Open the case IP40
Maximum immunity to
8mA
noise/interference
Working Environment -20℃~50℃; 80%RH
Withstand Voltage AC 3Kv 50Hz 1min(between the test circuit and shell)
Suitable Safety Standard IEC61010-1, IEC61326-1
Host tester: 1PCS; High voltage test line(red): 1PCS; Test line (green): 1PCS; Test line (black): 1PCS; Alligator clip: 1PCS;
Accessories
Hook: 1PCS; Power adaptor: 1PCS; USB communication cable 1PCS; Tool bag: 1PCS
