ZX68C+megohmmeter standard resistor

I. Overview
The National Metrological Verification Regulations of the People's Republic of China, JJG622-97 Insulation Resistance Meter (Megohmmeter), is a 20000 megaohm rotary standard resistor designed for verifying megohmmeters. It has the advantages of a wide range of resistance adjustment and easy use. Paired with our ZX124C multifunctional test box and CY3 constant speed tester, it can calibrate all items of the insulation resistance meter.
2、 Purpose:
1. Verify various types of insulation resistance meters with a rated voltage of 2500V or below.
2. For engraving dial plates in the production or repair of various types of insulation resistance meters.
3. Suitable for the calibration or verification of insulation high resistance meters.
4. Used as high and medium resistance standard resistor boxes.
3、 Technical indicators
1. This resistor is composed of a fixed resistor 10KM and 8 ten pin adjustable resistors connected in series, namely: 1 × 10KM Ω+10 × (1000M+100M+10M+1M+100K+10K+1K+0.1K) Ω. The resistance value adjustment range is 11111.1110M Ω and 21111.1110M Ω, with a minimum step value of 100 Ω.
2. The level index and maximum operating voltage or current (i.e. reference voltage or current) of each decimal plate are shown in Table 1:
3. Residual resistance value<0.1 Ω, variation<0.01 Ω.
4. The reference conditions for the environment are a temperature of 23 ℃ and a relative humidity of 40% to 60%.
5. The nominal usage range of the environment is: temperature 23 ± 5 ℃,
Relative humidity ranges from 25% to 75%.
6. The insulation resistance of the circuit to the shell is greater than 1 × 1012 Ω.
7. The insulation strength of the circuit to the shell can withstand a 50Hz sine wave AC voltage of 5KV without breakdown for 1 minute.
8. The external dimensions of this resistor are 490 × 249 × 171 mm.
9. Weight: ＜ 15kg