Safety requirements and precautions for DC resistance tester

Zc-205a DC resistance tester is a new generation instrument developed by our company to meet the needs of fast measurement of DC resistance of transformer. It has the characteristics of small volume, light weight and large output current.

In order to avoid possible hazards, this product can only be used within the specified scope, and only qualified technicians can carry out maintenance. Before using zc-205a DC resistance tester, the following safety requirements must be observed for household work to avoid personal injury, and to prevent damage to this product or any other products connected with it.

1. Use appropriate power cord. Only use the power cord that is special for this product and meets the specification of this product.

2. Connect and disconnect correctly. When the test wire is connected with the live terminal, do not connect or disconnect the test wire at will.

3. Product grounding. In addition to grounding through the power line grounding wire, the grounding column of the product shell must be grounded. In order to prevent electric shock, the grounding conductor must be connected to the ground. Before connecting with the input or output terminals of the product, make sure that the product is properly grounded.

4. Pay attention to the rating of all terminals. In order to prevent fire or electric shock hazard, please pay attention to all ratings and marks of this product. 5. Before connecting the product, please read the operation manual of the product, so as to further understand the rating information.

6. Do not operate without cover plate. Do not operate this product if the cover or panel has been removed.

7. Use a suitable fuse. Use only fuses of the type and rating specified in this product.

8. Avoid contact with exposed circuits and live metal. When the product is powered, do not touch the exposed contacts and parts.

9. Do not operate in case of suspected fault. If it is suspected that the product is damaged, please ask the company’s maintenance personnel to check, do not continue to operate.

10. Do not operate in humid environment. Do not operate in explosive environment. Keep product surface clean and dry.

In addition, the following precautions are also to be observed:

1. Before the reverse tapping of the no-load voltage regulating transformer is measured, it must be reset. After the discharge, the alarm sound stops, and then the tapping point can be switched.

2. When the transformer with on load voltage regulation measures the resistance at the high voltage side, it shall be measured from 1 or 17 maximum resistance gear.

3. Before wire removal, it is necessary to wait for the alarm sound to stop after the discharge, and then remove the wire.

4. When selecting the current, please refer to the range in the technical index column, which cannot be used beyond the range and under range. Large current shall be selected as far as possible within the range to enhance the stability, and the current bearing capacity of the test object shall also be considered.

The above is the safety requirements and precautions of zc-205a DC resistance tester. Do you understand clearly? If there is anything unclear, you can always consult our online customer service for details.