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    ETCR EM7700 Electrical Comprehensive Tester
  • Product Series : Electrical Comprehensive Tester

    • Main Features

      One device performs multiple electrical safety tests:
      Ground resistance testing
      Insulation resistance testing
      DC resistance testing
      RCD leakage protection device testing
      Electrical socket testing
      RMS current testing
      AC voltage testing
      Phase sequence testing
      7-inch touchscreen color display
      High-capacity lithium battery

    Product Introduction

    The ETCR EM7700 Electrical Comprehensive Tester is meticulously designed and manufactured for comprehensive on-site electrical safety testing.  The instrument features a brand-new structural design and integrates large-scale integrated analog circuits, digital circuits, and microcomputer chips. It is suitable for insulation and grounding connection testing of various electrical equipment, and for the maintenance, testing, and verification of residual current devices (RCDs). It is a professional power inspection tool in the power and electrical field.


    The instrument features a 7-inch touch color screen for easy operation. It can measure parameters such as ground resistance, insulation resistance, DC resistance, RCD leakage protection testing, electrical socket detection, RMS current, AC voltage, and phase sequence. The instrument offers more comprehensive functions, higher accuracy, stable performance, and convenient and reliable operation.


    Product Features:


    1. 7-inch touch color screen, displaying test data simultaneously. Testing operations and historical record retrieval are very convenient.


    2. Modular operation for various test functions, including ground resistance testing, insulation resistance testing, DC resistance testing, RCD leakage protection testing, electrical socket detection, and power parameter testing, providing clear and convenient operation.


    3. Test diagrams and wiring labels are distinguished by different colors to facilitate user understanding in different functions.


    4. 7.4V 10400mAH large-capacity lithium battery ensures long-term testing.


    5. Customizable automatic shutdown time.


    6. Built-in wiring diagrams for each function module, making it easy for users to refer to the wiring.


    7. Large-capacity test record storage, allowing direct browsing and analysis of test records on the instrument. Automatically stores 1000 sets of real-time test data with test date and time.


    8. USB communication upload function allows uploading recorded data to a computer for storage and statistical analysis.


    9. Double-layer shell structure, robust and durable, with IP65 protection rating (when the cover is closed).



    Technical Parameters


    Product Features

    1. 7-inch touchscreen color display, showing test data simultaneously. Convenient test operation and history retrieval.

    2. Modular operation of multiple testing functions including grounding resistance testing, insulation resistance testing, DC resistance testing, RCD leakage current protection testing, electrical socket testing, and power parameter testing, clear and convenient.

    3. Test diagrams and wiring labels use different colors to distinguish between different user habits for different functions.

    4. 7.4V 10400mAh high-capacity lithium battery ensures long-term testing operation.

    5. User-settable timer for shutdown.

    6. Built-in wiring diagrams for each functional module for easy wiring reference.

    7. Large-capacity test record storage; test records can be directly viewed and analyzed on the instrument. Automatically stores up to 1000 sets of real-time test data with test date and time.

    8. USB communication upload function; recorded data can be uploaded to a computer for storage, statistical analysis, and more.

    9. Double-layer shell structure, sturdy and durable, with an IP65 protection rating (when the cover is closed).

    Technical Parameters


    Functions

    Grounding resistance test, insulation resistance test, DC resistance test, RCD leakage current protection device test, electrical
    socket test, current RMS value test, AC voltage test, phase sequence test

    Power Supply

    DC 7.4V 10400mAh rechargeable lithium battery, fully charged to approximately DC 8.4V

    Display Mode

    7-inch touchscreen color screen

    Grounding Resistance Measurement Range

    0.10Ω~3000Ω

    Grounding Resistance Accuracy

    ±2%rdg±5dgt

    Insulation Resistance Measurement Range

    0.10M-80G

    Maximum Insulation Resistance Accuracy

    ±3%rdg±5dgt


    Leakage Current Range

    Manual/Automatic modes: 15mA, 30mA, 50mA, 60mA, 100mA, 200mA, 500mA Ramp Mode: 30mA, 100mA (Specific operating current can be
    tested)

    Leakage Current Accuracy

    ±10%rdg+5mA

    Leakage Protection Trip Time Range

    0.0ms-1000.0ms

    Leakage Time Accuracy

    ±5%rdg±3ms

    DC Resistance Measurement Range

    0.10Ω-3000Ω

    DC Current Accuracy

    ±5%rdg±8dgt

    AC Voltage Measurement Range

    0.10V~500.00V

    AC Voltage Accuracy

    ±2%rdg±5dgt

    AC Current Measurement Range

    0mA-300.0A

    AC Current Accuracy

    ±2%rdg±5dgt

    Phase Range

    0.0°~360.0°

    Frequency range

    45.00Hz~65.00Hz




    Active power range

    0.0W~150kW




    Reactive power range

    0.0var~150kvar

    Apparent power range

    0.0VA~150kVA

    Power factor range

    -1.000~1.000

    Temperature test function

    yes

    Phase sequence test function

    yes

    Harmonic function

    3rd harmonic content, 5th harmonic content

    Communication interface

    Features a TYPE-C interface, software monitoring, and data storage that can be uploaded to a computer, saved, and printed.

    Data storage

    1000 sets

    Automatic shutdown

    Automatic shutdown time can be set from 0 to 60 minutes, 0 for off.

    Clock setting

    yes

    Bluetooth communication

    yes

    Battery voltage

    When the battery voltage drops to DC 7.4V±0.1V, the battery voltage symbol displays "", reminding the battery to be charged.

    Power consumption

    12W Max

    Main unit dimensions

    280mm×260mm×160mm




    Instrument Quality

    Instrument: Approx. 2720g (including battery)

    Current Clamp: Approx. 200g

    Test Leads: Approx. 1210g (including simple test leads/socket test leads/multimeter test leads)

    Auxiliary Grounding Rods: Approx. 347g (2 pieces)

    Total Weight: Approx. 6.3kg (including accessories)

    Operating Temperature and Humidity

    -10℃~40℃; below 80%RH

    Storage Temperature and Humidity

    -20℃~60℃; below 70%RH

    Protection Rating

    IP65 (with cover closed)

    Overload Protection

    Measuring Grounding Resistance: AC 280V/3 seconds between E-P and E-C ports

    Insulation Resistance

    Above 10MΩ (500V between circuit and casing)

    Withstand Voltage

    AC 3700V/rms (between circuit and casing)

    Electromagnetic Characteristics

    IEC61010-4-3, Radio Frequency Electromagnetic Field ≤1V/m



    Suitable for Safety Regulations

    IEC61010-1 (CAT III 300V, CAT IV) 150V, Pollution Degree 2); IEC61010-031; IEC61557-1 (Grounding Resistance); JJG 366-2004
    (Grounding Resistance Meter); JJG 1005-2019 Electronic Insulation Resistance Meter; JJG 843-2007 Leakage Current Tester; JJF
    1283-2011 Calibration Specification for Residual Current Operated Protective Device Operating Characteristic Tester


    Model Comparison

    Product Video

    Related Products
    ETCR EM7700 Electrical Comprehensive Tester
    • Contact Us

    +86 13802922567 (Johnson Zhang)

    [email protected]

    10th Floor, Block 5, Liandong Intelligent Manufacture Park, No. 105, Shilong North Road, Nanhai District, Foshan City, Guangdong, China

    All Rights Reserved © Guangdong ETCR Electronic Technology CO.,Ltd 2025
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