1.1 General introduction
GDHL series adopt digital circuit technique
and the switches circuit technique creation and is a special
instrument used for the contact resistance measurement and
the line loop resistance measurement of switch control
equipments. The test current adopts **0 A direct current
recommended by the national standard GB**3 and can directly
measure the line loop resistance or contact resistance under
the circumstance of the **0 A,**0A,**0A,**0A,**0A or **0A
current, and direct manifestation. It also can save **0 groups
of data at most in the instrument and upload to PC through
RS**2 interface. The instrument has accuracy measurement,
stable function and is suitable for electric power and power
supply sector to maintain high voltage switch on the spot and
test the line loop resistance in the high voltage switch
factory.
1.2 Funtion
1 1 minute standard test
2 Rapid test
3 Result print
4 Upload data to PC
1.3 Main technique index:
1. Measuring range: *****9.9 μΩ Resolution: 0.1 μΩ
2.Measuring current: DC **0A or **0A can be choosed.
3.Measuring precision:0.5 class
4.Display mode: LCD
5.Save **0 groups of data
6. Work method: succession
7. Rated power supply: AC**0V
8. Temperature:**0 °C~**0 °C Relative humidity<*0%
