Crown measurement precision instrument resistivity tester precautions

Standards compliant:

GB/T 1410-2006 "Test method for volume resistivity and surface resistivity of solid insulating materials"

ASTM D257-99 "Test Method for DC Resistance or Conductance of Insulating Materials"

GB/T 10581-2006 "Test method for resistance and electrical resistivity of insulating materials at high temperatures"

GB/T 1692-2008 "Determination of insulation resistance of vulcanized rubber"

GB/T 2439-2001 "Determination of electrical conductivity and dissipative properties of vulcanized rubber or thermoplastic rubber"

GB/T 12703.4-2010 "Evaluation of electrostatic properties of textiles - Part 4: Electrical resistivity"

GB/T 10064-2006_ "Testing methods for determining insulation resistance of solid insulating materials"

GB 1672-1988 Determination of volume resistivity of liquid plasticizers

Resistivity tester considerations

This resistor uses the latest measurement and control technology to upgrade the GEST121 instrument. It can test the insulation resistance, volume resistance, surface resistance, and can automatically calculate the resistivity. The current measurement range is 2×10-4～1×10-16A. . The internal test voltage is adjustable from 10V/50V/100V/250V/500V/1000V.

The instrument has high precision, quick display, good stability and convenient reading, and is suitable for measuring the volume and surface resistance of various insulating materials in the shape of rubber, plastic, film, powder, liquid, and solid and paste. In addition to measuring resistance, the instrument can directly measure weak current.

1. Lay the sample to be tested in the center of the unprotected electrode, then press the sample with the protective electrode, and then insert the protected electrode (the protective electrode, the protective electrode, the protected electrode should be coaxial and confirm that there is no short circuit between the electrodes). ).

2. When measuring the volume resistance, the test button is turned to the Rv side, and when the surface resistance is measured, the test button is dialed to the Rs side.

3. Connect the test line and connect the test lead to the shielded box. The range is set to 104, and the power switch button on the rear panel of the main unit is turned on. Adjust the voltage button from the rear panel of the instrument to the required measurement voltage.

4. The current resistance range button is gradually increased from the low gear position. Each time it is paused for 1-2 seconds, the display digit is observed. When the measured resistance is greater than the instrument measurement range, the resistance meter displays “1”. At this time, the instrument should continue to be dialed. A higher range position. When the measuring instrument has the displayed value, it should stop. After 1min of electrification time, the resistance is measured. The current number multiplied by the grade is the measured resistance.

The DC resistance tester is a test instrument for DC resistance of a new generation of transformers. It can automatically select the test current according to different types of power transformers and display the test results at the fastest speed. DC resistance tester also has functions such as storage, printing and discharge indication. It has built-in non-power-down memory and can store measurement data for a long time. The use of liquid crystal display makes the instrument has good man-machine interface, which is the first choice in DC resistance test work.

Crown measurement precision instrument resistivity tester precautions

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