
Product Series : Lightning Protection Component Tester
Used for testing the performance parameters of lightning protection components such as varistor(MOV), discharge tube(GDT), surge protector(SPD).
Voltage measurement range: 50V~3000V
Leakage current measurement range: 0uA~1000uA
Memory: data storage 2000 groups.
Product Introduction
ETCR EM3800A Lightning Protection Component Tester, also known as lightning protection component testing instrument, SPD on-site tester, varistor tester and surge protector tester, which is used for measuring performance parameters of various varistor (MOV), gas discharge tube (GDT), and surge protector (SPD). The tester not only has unique functions such as high-voltage short circuit protection, overcurrent protection, professional level parameter setting, high-voltage limit setting, boost speed setting, qualified range setting, qualified judgment screening, automatic range adjustment, etc., but also has single piece testing mode and continuous testing mode function, which is especially suitable for batch component testing. The tester is widely used for testing the performance parameter of overvoltage protection component such as lightning arrester, surge protector, varistor, metal ceramic discharge tube, vacuum lightning arrester, etc. It is a commonly used and essential instrument for meteorological lightning protection, power, communication, mechanical and electrical installation and maintenance, lightning protection component manufacturer, and industrial enterprise department.
ETCR EM3800A Lightning Protection Component Tester adopts true-color touch screen with Chinese interface, direct function, one-click measurement, easy and effective to operate. User do not need to laboriously memorize the operation method, click “HELP” on the screen to pop up the operation method, effectively guiding the user to operate the instrument. At the same time, the instrument adopts a large-capacity rechargeable lithium battery, with memory function, can automatically store 2000 sets of test result containing date and time, the touch screen is convenient for user to check historical record, USB data upload and export functions, as well as automatic shutdown, low battery reminder and other functions.
1.The tester has a stable output voltage, output voltage is 3000V, meeting the testing need of various components.
2.Unique professional level parameter setting function: boost speed setting, high voltage limit setting, qualified range setting, qualified judgment condition setting, and it is easy for on-site testing.
3.Two test mode: single test mode and continuous test mode can be selected, continuous test mode is especially suitable for batch component testing.
4.5 inch true-color touch screen, Chinese interface, click “HELP” on the screen to pop up the operation method, guiding user to operate the instrument.
5.Memory, clock function, can automatically store 2000 groups test results containing date and time.
6.USB communication interface.
7.Large capacity lithium battery.

Commonly Used Test Instruments in the Lightning Protection Industry
| Product Name | Model | Main Parameters |
| Clamp Earth Resistance Tester | EM2000+ | Range: 0~1000Ω, Resolution: 0.01Ω |
| Digital Earth Resistance Tester | Test Current: >20mA (sine wave), Resolution: 0.01Ω | |
| Large Grounding Network Earth Resistance Tester | EM3300B | Test Current: >3A, Resolution: 0.001~99.999Ω, Frequency Optional |
| Soil Resistivity Tester | EM3040B | Four-Wire Measurement, Test Current: >20mA (sine wave) Resolution: 0.01Ω |
| Equipotential Connection Reistance Tester | EM3700 | Test Current: >1A, Four-Wire Test, Resolution: 0.001Ω, With Large Capacity Lithium Battery |
| Clamp Loop Resistance Tester | EM2150 | Resistance Measurement Resolution: 0.001Ω, Current Measurement Resolution: 1uA |
| Lightning Protection Tester | EM3800 | Test Device: MOV, With Large Capacity Lithium Battery |
| Insulation Resistance Meter | EM3460A | 0~1000MΩ |
| Surface Impedance Tester | EM3420 | Measuring Range: 10³~1010Ω |
| Digital Multimeter | EM5930 | Voltage, Current, Resistance Measurement, Resolution: 3.5 Digits |
| Lightning Protection Standard Resistor | EM3900 | 10ˉ³~10⁵Ω,Power 1/2w, Wirewound |
Technical Parameters
1.Measurement range & accuracy
| Measurement Function | Output | Measurement Range | Measurement Accuracy | Solution |
| Varistor | Voltage 0~3000V | 50~3000V | ±2%rdg±3dgt | 1V |
| Current 0~1.5mA | 0~1000μA | ±2%rdg±10dgt | 0.1uA | |
| Discharge Tube | Voltage 0~3000V/1.5mA | 50~3000V | ±2%rdg±3dgt | 1V |
Test conditions: varistor: 1mA±5μA; 0.75U1mA≤±1%±1d, discharge tube: 100V/S±10%
2.General Specifications
| Power Supply | DC 7.4V 2600mAH rechargeable lithium battery |
| Display Mode | 5 inch true-color touch screen |
| Measurement Method | DC voltage drop method |
| Shift Gear | Fully automatic gear shifting |
| Boost Speed Setting | 5 boost levels |
| High Voltage Limit Setting | “250V” adjustment, max. setting 3000V |
| Qualification Range Setting | Yes |
| Qualification Criteria Setting | Voltage or leakage current can be set as condition for judging whether qualified or not. |
| Qualification Judgement Reminder | Buzzer prompt, emit one beep sound indicates qualified, emit three beep sound indicates unqualified. |
| Memory | Automatic store testing data, varistor 1000 groups, gas discharge tube 1000 groups. |
| Data Access | Yes |
| Overflow Display | “9999.99” symbol indicates when over range overflow. |
| Test Mode | Single: one click testing does not require preset. Continuous: preset voltage can be set, fast and effective. |
| Data Upload | USB interface, testing data can be uploaded to computer and be exported to Excel format. |
| Battery Voltage | Battery level indication, when low battery level display, the tester need to be charged in time. |
| Automatic Shutdown | Automatic shutdown in no operation after 25 minutes start up. |
| Consumption | Standby: about 140mA, measurement: about 830mA |
| Test Line | Red 1.5m 1 PCS, black 1.5m 1 PCS; Alligator Clip 2 PCS, probe 2 PCS |
| Host Size | 212mm×175mm×76mm |
| Weight | About 1200g |
| Working Temperature & Humidity | -20℃~40℃; below 80%Rh. |
| Store Temperature & Humidity | -20℃~60℃; below 70%Rh. |
Model Comparison
| Product Picture | Product Model Name | Voltage Test Range | Leakage Current Range | Insulation Resistance | Qualified Range Judgement | Continuous Mode | Color Touch Screen |
![]() | ETCR EM3800A Lightning Protection Component Tester | 50V~3000V | 1mA | -- | Yes | Yes | Yes |
![]() | ETCR EM3800B Lightning Protection Component Tester | 50V~3000V | 1mA | 500V/2500V,10GΩ | Yes | Yes | Yes |
Product Video