JDB-2 grounding resistance meter verification device

1、 Overview
Grounding resistance meter is a safe instrument produced according to the principle of potential compensation
It is easy to operate and carry
It is widely used to measure the grounding resistance of single grounding body and centralized grounding body
The measurement of grounding resistance is an important measure to monitor grounding quality and ensure power safety

The national verification regulation of grounding resistance meter is jjg366-2004 verification regulation of grounding resistance meter

JDB-2 grounding resistance meter verification device of flux technology (Nantong) Co
, Ltd
is a standard instrument for verifying grounding resistance meters, which fully meets the requirements of jjg366-2004 for standard instruments
It can verify analog and digital grounding resistance meters of various accuracy levels and models
It shall not be used for the verification of grounding on resistance meter (working current is ac25a)
It can be used as a resistance box
The initial resistance is 10m & omega;, The resolution is 1m & omega;

2、 Main technical indicators
2
1 resistance output range: 0
010 & omega; ~ 20001
110Ω； Minimum resolution: 1m & omega;

2
2 analog grounding resistance re (standard resistor)

resistance value (& omega;)	× 103	× 102	× 101	× 100	× 10-1	× 10-2	× 10-3
power Current	0 25W	0 25W	0 25W	0 25W	0 5A	0 5A	0 5A
accuracy (%)	0 05	0 05	0 1	0 1	0 5	5 0	20

2
3 simulate the auxiliary grounding resistance RP RC (auxiliary grounding resistance)

resistance value (& omega;)	0	500	1000	2000	5000
accuracy (%)	(＜0 1Ω)	2 0	2 0	2 0	2 0
power (W)	rp　1W   rc  2W

2
4 operating environment: temperature 20 ℃ & plusmn; 5℃; Relative humidity 40% ~ 75% RH
2
5 weight ＜ 2
5kg
2
6 volume 368mm & times; 164mm× 110mm search copy , search
copy