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ZX119-8 insulation resistance meter calibration device


The ZX119-8 insulation resistance meter calibration device is developed and produced in accordance with relevant documents such as JJG622-1997 Calibration Regulations for Insulation Resistance Meters, JJG1005-2005 Calibration Regulations for Electronic Insulation Resistance Meters, and JJG1072-2011 Calibration Regulations for DC High Voltage High Value Resistors. The instrument is designed with independent leakage shielding terminals and grounding terminals. It can be used not only to verify the standards of various types of imported and domestic analog megohmmeters, digital megohmmeters, and insulation resistance testers, but also as a DC standard high-value resistor. It has a long technical life and mechanical life.

  • Product description
  • I. Overview

    The ZX119-8 insulation resistance meter calibration device is developed and produced in accordance with relevant documents such as JJG622-1997 Calibration Regulations for Insulation Resistance Meters, JJG1005-2005 Calibration Regulations for Electronic Insulation Resistance Meters, and JJG1072-2011 Calibration Regulations for DC High Voltage High Value Resistors. The instrument is designed with independent leakage shielding terminals and grounding terminals. It can be used not only to verify the standards of various types of imported and domestic analog megohmmeters, digital megohmmeters, and insulation resistance testers, but also as a DC standard high-value resistor. It has a long technical life and mechanical life.

    The measuring range is 100Ω~200GΩ, and the adjustment fineness is 100Ω.

    The nominal measurement voltage of the voltage measurement part of the calibration device is 5kV DC, and the input impedance is ≥10GΩ. This device can measure the open circuit voltage, median voltage and peak voltage of the megger.

     

    2. Main technical parameters

    1. Resistor output (high voltage and high resistance box) part

    1.1 Accuracy level and operating voltage (current) of the resistor output part

    Resistance

    100GΩ

    ×10GΩ

    ×1GΩ

    ×100MΩ

    ×10MΩ

    ×1MΩ

    level of accuracy

    5

    5

    5

    2

    1

    0.5

    Nominal voltage (V)

    5000V

    5000V

    5000V

    5000V

    2500V

    1000V

     

    Resistance

    ×100kΩ

    ×10kΩ

    ×1kΩ

    ×100Ω

    level of accuracy

    0.2

    0.2

    0.2

    0.2

    Nominal current (mA)

    1mA

    5mA

    10mA

    10mA

     

    1.2 Adjustment range: 100Ω~200GΩ, adjustment fineness is 100Ω

    1.3 Environmental conditions of use

    ⑴Reference temperature range: 17~23℃

    ⑵ Nominal operating temperature range: 15~25℃

    ⑶ Reference humidity range: 30%~60%

    ⑷ Nominal operating humidity range: 25%~75%

       1.4 Insulation resistance:

    The insulation resistance between the circuit of the resistance output part of the calibration device and any other external metal that is not electrically connected to the circuit shall have a resistance value of not less than 1GΩ measured at the nominal voltage.

    1.5 Dielectric strength:

    The circuit between the resistance output part of the calibration device and the reference ground point for testing should be able to withstand an actual sinusoidal AC voltage of 6.75kV with a frequency of 45 to 65Hz and a test lasting 1 minute without breakdown or arcing.

    1.6 The residual resistance at the output end of the resistance output part of the calibration device should be <1Ω, and its variation should be <0.1Ω.

    1.7 Overall dimensions: 442mm×270mm×145mm

    1.8 Weight: <5kg

    2. Voltage measurement (high voltage DC digital voltmeter) section

    2.1 Measuring range: 0~5500V DC

    2.2 Accuracy: ± (1% reading ±0.2% full scale)

    2.3 Power supply: DC9V

    2.4 Input resistance: ≥10GΩ

    2.5 Display: Four and a half digits, LCD display

    2.6 The peak voltage measurement circuit meets the requirements of Figure 3 in JJG622-1997 Insulation Resistance Meter Verification Regulations.

     

    3. Completeness

    1. One megger calibration device.

    2. A set of test lines.

    3. One copy of the instruction manual.

    4. A factory certificate of conformity.

    5. A special packaging box.