SYD-421 Insulation oil volume resistivity testerDetailed product description：

The SYD-421 insulation oil volume resistivity tester is a new type of specialized instrument for resistivity measurement, developed based on the principle of active bridge and in accordance with the power industry standard DL/T 421-91 "Insulation Oil Volume resistivity Measurement Method" of the People's Republic of China.

1、 Main technical features
1. The SYD-421 insulation oil volume resistivity tester consists of two parts: a parameter measurement system and an oil cup heating and temperature control system. The testing range is 108-19.99 × 10-13 Ω· cm, and it has functions such as automatic timing, automatic reading, and numerical retention.
2. This instrument has the advantages of simple structure, good linearity, high sensitivity, stable test results, and safe operation, and its performance is much higher than the usual voltage current method.
3. In addition to measuring the volume resistivity of insulating oil, this instrument can also be used to measure the resistivity of transformer oil, lubricating oil, etc. It is an ideal equipment for testing the volume resistivity of insulating oil in the power industry, petroleum industry, research institutes, and related factories and units.

2、 Main technical parameters and indicators
1. Test voltage: 500V, DC;
2. Test range: 108-19.99 × 10-13 Ω· cm;
3. Repeatability: ＞ 1012 Ω· cm ≯ 25%; ＜1012 Ω·cm ≯15%；
4. Temperature controlled heating range: 300W;
5. Temperature control range: 30-100 ℃;
6. Temperature control accuracy: ± 0.5 ℃;
7. Measurement error: ≤± 10%;
8. Test electrode cups: 3.
9. Environmental temperature: 0-40 ℃;
10. Relative humidity: ≤ 85%;
11. Power supply voltage: 220V AC ± 10%, 50Hz ± 1Hz;
(Note: This instrument needs to be customized)