ETCR3520/3520B/3520C High Performance HV Insulation Resistance Tester
Max Output Voltage 15KV
Max Test Resistance 30TΩ
Max Short Circuit Current 7mA
Polarization Index Test（PI）
DielectricAbsorption Ratio Test（DAR）
Ramp Test Mode (RAMP)
Filtered Resistance Test Mode (FR)
Automatic Discharge Function
Voltage Monitor Function
Test Timer Function
True Color Touch Screen
Large Capacity Rechargeable Lithium Battery
USB Data Upload Function
Product Introduction
ETCR series High Voltage Insulation Resistance Tester is an intelligent high-end insulation resistance tester well-developed by ETCR Company. The
instrument with perfect test functions of various insulation resistance parameters and excellent anti-interference ability. The instrument adopts true color
touch screen, all test data and battery power are displayed on the same screen, the combination of knob switch and button makes the operation very
simple. The user no need to memorize the operation method, click the "HELP" on the screen to pop up the operation method which effectively guide the
user to operate the instrument. The instrument has the function of rapid discharge and automatically monitors the live voltage of the measured object. The
voltage exceeds 36V will automatically prohibits the test to protect the instrument and operators effectively.
The instrument adopts two kinds of power supply modes: large capacity rechargeable lithium battery pack and power adapter. The meter automatically
stores test results which contain date and time, the touch screen can very convenient to consult the recorded historical data, the fully isolated USB
interface can upload the test data to the PC safely. The instrument is equipped with double insulation and shielding layer test wire, and the high voltage rod
is equipped with replaceable crocodile clips and hooks, which can be used in various test places. The instrument adopt hard double-shell structure, and the
meter outer case with IP65 protection level, which can prevent moisture and dust intrusion and collision during the transportation and storage process,
protect the meter effectively.
Product Function
Suitable for insulation resistance testing of cable, motor, generator, transformer, mutual inductor, high voltage switch, arrester and other large equipment.
Insulation resistance measurement (IR); polarization index measurement (PI); dielectric absorption ratio (DAR); ramp test mode (RAMP); Filtered
resistance test mode (FR). Voltage test(V); capacity test（uF）; Leakage current test（nA）.
Product Features
1. With super anti-interference ability, used for large capacity high voltage electrical equipment and transmission line insulation resistance
measurement of transmission lines in 110Kv ~ 1000Kv substation with strong induction environment.
2. The combination of touch color screen, button and wave band knob, the function perfect can be directly tested with one button, the operation of
inquiry record is simple and convenient.
3. Rich display content which can display on same screen : various test modes and insulation resistance value, output voltage and the voltage of tested
object, leakage current, test timing, test time, battery power, operation help, etc.
4. Double shell structure, firm and durable, protection level IP65.
5. Large capacity rechargeable lithium battery.
6. Voltage monitor function, automatically monitor live voltage of the tested object.
7. Test timer function, automatically record test time.
8. Automatic discharge function, after the test automatically release the charge of the tested object.
9. Store function, automatically store 1000 groups of real-time test data with test date, time and timing.
10. Upload function, the recorded data can be uploaded to the computer by USB communication cable for data statistical analysis.
Insulation Resistance Measurement Accuracy
Rate Voltage 250v 500v 1000v 2500v 5000v 10Kv 15Kv
Range and ±5% 50GΩ 100GΩ 200 GΩ 500 GΩ 1 TΩ 2 TΩ 3TΩ
Accuracy ±20% 500GΩ 1TΩ 2 TΩ 5TΩ 10TΩ 20 TΩ 30TΩ
Technical Specifications
Model ETCR3520 ETCR3520B ETCR3520C
250v，500v，1000v，2500v， 250v，500v，1000v，2500v，5000v， 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
0.5MΩ～10TΩ 0.5MΩ～20TΩ 0.5MΩ～30TΩ
Range
Output Short Circuit Current ≥7mA ≥7mA ≥7mA
Power Supply Rechargeable lithium battery pack 6.2Ah
Polarization Index Test Yes
Dielectric Absorption Ratio
Yes
Test
The output voltage will start at 10% of the preset voltage and increase in steps of 10% until the preset voltage is
Ramp Test Mode
reached
Filtered Resistance Test
10S、20S、30S、40S (4 selection)
Mode
Voltage Measurement Range: AC/DC 30V～1000V；Accuracy: ±（3%+3V）
；Resolution: 1V
Current Measurement Range: 0.00nA～6.00mA；Accuracy: ±（5%+0.2nA）
；Resolution: 1pA
Capacitance Measurement Range: 10nF～25uF；Accuracy: ±（10%+5nF）
；Resolution: 1nF
Monitor the voltage of the measured object, and monitor discharge status after test, Forbidden to test when voltage is
Voltage Monitor
larger than 36V, protect instrument and operator.
Test Timer Automatic record test time, time range: 0s~9999s
Storage Function Automatically store the real-time test data with test date, time and timing, total of 1000 groups
Upload Function Upload the stored data to computer with USB communication cable.
Battery Power Indication Yes, when battery voltage low will remind to replace the battery
Automatic Shutdown After 15 minutes start up will shut down automatically without any operation
Meter Dimension 280mm×260mm×160mm
Meter Weight 4900g (include battery)
Test Wire Red high voltage test wire 1 pcs (with alligator clip 1PCS and hook 1PCS), green test wire 1PCS, black test wire 1PCS
Protection Level Close the case IP65; open the case IP40
Working Environment -20℃～50℃；80%rh
Store Environment -25℃～65℃；80%rh
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
Host: 1PCS, high voltage test wire(red): 1PCS, Test wire (green): 1PCS; Test wire (black): 1PCS; Alligator clip: 1PCS;
Accessories
Hook 1PCS; USB communication cable 1PCS; Software CD: 1COPY; Tool bag: 1PCS
