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  • Mining Intrinsic Safe Resistance Tester - China

    price: 2.00 Dollar US$

    Model: CHD1200
    Description: CHD1200 Mining Intrinsic Safe Resistance Tester
    MA number: MFA150190 (National safety sign for coal mining products).
    KA number: KFA150020 (National safety sign for mining products).
    ExibI: 320150858 (Intrinsic safe and explosion-proof products certificate)
    ExiaII: CMExC17.4383
    Patent No. ZL 2015 2 0977177.7 Introduction:
    1. Applicable for grounding resistance and circuit resistance measurement in mining, industrial park, electricity, telecom, meteorological, oilfield, architecture and industrial motor equipment fields.
    2. It can do measurement directly and no need to disconnect grounding wire or prepare auxiliary electrode.
    3. Applicable for the combustible and explosive gas place.
    4. Measured value is the comprehensive value of grounding body resistance and grounding wire resistance. Technology parameters: 1. Measuring range, resolution and intrinsic error. Measuring range Resolution Intrinsic error
    0.1Ω~49.9Ω 0.1Ω ± (truth-value×1%+0.1Ω) 50.0Ω~99.5Ω 0.5Ω ± (truth-value×1.5%+0.5Ω)
    100Ω~199Ω 1Ω ± (truth-value×2%+1Ω)
    200Ω~395Ω 5Ω ± (truth-value×5%+5Ω)
    400Ω~590Ω 10Ω ± (truth-value×10%+10Ω) 600Ω~1200Ω 20Ω ± (truth-value×20%+20Ω) 2. Resistance range: 0.01~1200Ω
    3. Resistance resolution: 0.001Ω
    4. Data storage: 99 sets
    5. Sound-light alarm: yes. “AL” button to open or shut up.
    6. Alarm critical value range: 1-199Ω
    7. Power: 6V DC, alkaline dry cell
    8. Working temperature and humidity: -20℃ to 55℃, 10%RH to 90%RH.
    9. LCD display size: 47mm×28.5mm
    10. Jaw size: long jaw 65mm×32mm; circular jaw Φ32mm.
    11. Jaw expanding size: long jaw 35mm; circular jaw 32mm.
    12. Weight: long jaw 1160g; circular jaw 1120g (Battery included)
    13. Dimension: long jaw: 285mm×85mm×56mm (L×W×H); Circular jaw: 260mm×90mm×66mm (L×W×H).
    14. Explosion-proof sign: Exia II BT3 Ga
    15. Degree of protection: double insulation
    16. External magnetic field <40A/m; external electric field <1V/m.
    17. Single measurement time: 0.5s
    18. Measuring frequency of resistance: >1 KHz.


    Company Contact:


    • Phone: +8651683890183

    • Address: Building A, Science and Technology Park, China University of Mining and Technology, Quanshan distric, Xuzhou, Jiangsu, China

    • Email: Email


    Published date: June 2, 2019 -

    • Business Description: Mining instruments and meters, include Video/Audio Recorder, Ventilation Resistance Meter, Steel Wire Lossless Flaw Detector, Mining Motor Operation Parameter Meter, Resistance Meter, Ultrasonic Flowmeter, Infrared Radiation Thermometers, Temperature and Humidity Meter, Laser Range Finder, Gas Detector, Sound Level Meter, Vibration Meter, Intrinsic Safe Digital Camera/Video Camera, Fireworks/Firecrackers Detector, Explosive Detector, Leak Tester, Optical Theodolite, Ultrasonic Lossless Tester, Bolt Wireless Force Measuring Meter, Dust Meter, Night-Vision Device, Illuminometer.

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