ZX79G megohmmeter standard resistor

NegotiableUpdate on 05/23

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Nature of the Manufacturer: Producers

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Overview

The ZX79G megohmmeter standard resistor is designed and manufactured in accordance with the requirements of the National Metrology Verification Regulations of the People's Republic of China ≤ JJG622-97 Insulation Resistance Meter (Megohmmeter) ≥ Verification Regulations.

Product Details

Application of ZX79G megohmmeter standard resistor product

The ZX79G megohmmeter standard resistor (hereinafter referred to as the resistor) is a 1 million megaohm rotary standard resistor designed specifically to implement the National Metrology Verification Regulations of the People's Republic of China "JJG622-97 Insulation Resistance Meter (Megohmmeter)" for verifying megohmmeters. It has the advantages of a wide range of resistance adjustment and easy use. Paired with our ZX124G multifunctional test box and CY3 constant speed tester, it can calibrate all items of the insulation resistance meter.

1、 Purpose:

1. Verify various types of insulation resistance meters with rated voltage of 10KV 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.

ZX79G兆欧表标准电阻器

IIZX79G megohmmeter standard resistorMain technical indicators

1. This resistor consists of two parts. The * part is composed of 8 ten pin adjustable resistors connected in series, namely: 10 × (1000M+100M+10M+1M+100K+10K+1K+100) Ω. The second part is composed of 10 fixed resistors of 10G Ω and 9 fixed resistors of 100G Ω connected in series. After connecting the two parts in series, the range of resistance adjustment is 1121111.1110M Ω, with a minimum step value of 100 Ω.

Resistance (Ω)	＞100G	100G~10G	1GB drive	X 100M disk	X 10M disk	X 1M disk	100K disk	10K disks	1K disks	100 Ω disk
Grade index a (%)	10	5	2	1	0.2	0.2	0.2	0.2	0.2	0.2
Maximum usage voltage or current	10KV	10KV	5KV	5KV	2500V	2500V	500V	8mA	20mA	50mA

2. The level index and maximum operating voltage or current (i.e. reference voltage or current) of each decimal plate are shown in the following table:

3. Residual resistance value<0.1 Ω, variation<0.01 Ω.

4. The reference conditions for the environment are a temperature of 23 ± 3 ℃ and a relative humidity of 40% to 60%.

5. The nominal operating range of the environment is a temperature of 23 ± 5 ℃,

Relative humidity ranges from 25% to 75%.

6. The insulation resistance of the circuit to the shell is greater than 1 × 1013 Ω.

7. The insulation strength of the circuit to the shell can withstand a 50Hz sine wave AC voltage of 11KV without breakdown for 1 minute.

8. The external dimensions of this resistor are 602 × 323 × 210mm.

9. Weight: ＜ 15kg