PRODUCT
+
  • 119-3.png

ZX119-3 insulation resistance meter calibration device, megger calibration device


The ZX119-3 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 not only be used to verify the standards of various types of imported and domestic analog insulation resistance meters, digital insulation resistance meters, and insulation resistance testers, but also can be used as a DC standard high-value resistor. It has a long technical life and mechanical life.

  • Product description
  • I. Overview

    The ZX119-3 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 not only be used to verify the standards of various types of imported and domestic analog insulation resistance meters, digital insulation resistance meters, and insulation resistance testers, but also can be used as a DC standard high-value resistor. It has a long technical life and mechanical life.

    The measuring range is 100Ω~20GΩ, and the adjustment fineness is 100Ω.

    The nominal measurement voltage of the voltage measurement part of the calibration device is 3kV 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. Resistance output (high voltage and high resistance box) part

    1.1 Accuracy level and working voltage (current) of high voltage and high resistance box

    Resistance

    10GΩ

    ×1GΩ

    ×100MΩ

    ×10MΩ

    ×1MΩ

    level of accuracy

    2

    2

    1

    0.5

    0.2

    Nominal voltage (V)

    2500

    2500

    2500

    1500

    800

     

    Resistance

    ×100kΩ

    ×10kΩ

    ×1kΩ

    ×100Ω

    level of accuracy

    0.2

    0.2

    0.2

    0.2

    Nominal current (mA)

    1

    5

    10

    10

     

    1.2 Adjustment range: 100Ω~20GΩ; Adjustment fineness: 100Ω

    1.3 Environmental conditions of use

    (1) Reference temperature range: 17~23℃

    (2) Nominal operating temperature range: 15~25℃

    (3) Reference humidity range: 30% ~ 60%

    (4) Nominal operating humidity range: 25% ~ 75%

    1.4 Insulation resistance: The insulation resistance between the circuit of the high-voltage high-resistance box and any other external metal that is not electrically connected to the circuit. The resistance value measured at the nominal voltage is not less than 1GΩ.

    1.5 Insulation strength: The circuit between the high-voltage high-resistance box and the reference ground point for testing should be able to withstand an actual sinusoidal AC voltage of 3.75kV 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 high-voltage and high-resistance box should be <1Ω, and its variation should be <0.1Ω.

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

    1.8 Device weight: 5kg