TD1400 Series Loop Resistance Tester



TD1400 Series Loop Resistance Tester is a device specially used for measuring the loop resistance or contact resistance of high and low voltage switches, copper and aluminum busbars. This device fully complies with the "JJG 1052-2009 Verification Regulation of Loop Resistance" and "DL/T 845.4-2004 General Technical Conditions for Resistance Measuring Devices".



Features:



1 TD1400 Series Loop Resistance Tester adopts a precision DC constant current source, which can provide a maximum DC current output of 200 A.



2 This device is suitable for measuring low resistance values such as the contact resistance of main contacts of high and low voltage switches, and the DC resistance of high and low voltage cable lines; the measurement range is 0.0010 mΩ ~ 180.00 mΩ, with 5-digit resistance display, and high accuracy class of 0.2.



3 It can work normally in an environment of -20 ℃ ~ 45 ℃ and with a power supply current within the range of AC (198 V ~ 253 V).



4 It supports RS232 interface, enabling functions such as data storage, printing, and remote transmission.



5 Small size, light weight, and easy to carry; built-in micro printer, very suitable for on-site measurement and direct report generation.



Technical Parameters:



Resistance Measurement Technical Indicators

Test Current

200 A

100 A

50 A

20 A

Adjustment Margin

20%

20%

20%

20%

Measurement Range

0~5 mΩ

0~25 mΩ

0~60 mΩ

0~180 mΩ

Resolution

0.1 μΩ

1 μΩ

1 μΩ

10 μΩ

Accuracy

± ( 0.5%*RD + 1 μΩ )

± ( 0.5%*RD + 10 μΩ )

Remarks

RD is the reading value


After-sales Service Commitment:

 1. Service purpose: rapid response, proper handling, and thoughtful service.

 2. Service goal: customer satisfaction is our ultimate goal.

 3. Service efficiency: if equipment failure occurs during or after the warranty period, the supplier's maintenance personnel will arrive at the site within 12 hours after receiving the notice and start repair.

 4. Service principle: the product has a one-year free warranty period. During the warranty period, the supplier will repair or replace parts damaged due to quality issues for free. For parts damaged outside the warranty period, only the cost of the parts will be charged. For equipment damage caused by human factors of the user, the supplier will charge at cost price for repair or parts provided.