NOYAFA Electronic specializing in testing instruments and cable testers for 16 years
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NOYAFA Electronic specializing in testing instruments and cable testers for 16 years
Author: Noyafa–CCTV Tester
Question: Selection and usage skills of relay protection calibrator? Answer: The relay protection calibrator can test a variety of single relays such as various AC and DC currents, voltages, and safety signals and the entire group of relay protection screens, and can test the pull-in voltage (current) values of various relays. Question: Relay Electrical protection calibrator selection and use skills? Answer: The relay protection calibrator can test a variety of single relays such as various AC and DC currents, voltages, and safety signals and the entire group of relay protection screens. It can test the pull-in voltage (current) value of various relays, and the release voltage ( Current) value, the pull-in time and break-off time of various contacts (normally open, normally closed, conversion, delay) are automatically tested three times, the average value of the three times is automatically calculated, and the test results can be printed. Precautions for the relay protection calibrator: 1. Before use, please read the instruction manual in detail to avoid operating errors. 2. Please ground it reliably before starting the machine to ensure the safety of people and machines.
3. After completing an experiment, please adjust each adjustment knob to the minimum value. 4. The power supply of this machine should not be used as a permanent power supply; the power supply of this machine should be used intermittently, and the duration of high current output should not exceed 5 minutes. 5. Please turn off the power in time when the machine is abnormal.
6. When connecting or disconnecting the device under test, the output terminal may be charged, please pay attention to safety. Product features: Because the machine adopts microcomputer control, Chinese characters prompt operation. The machine also has the function of self-checking and error reporting. After the machine is turned on, it will be put into self-checking immediately, which greatly facilitates inspection and maintenance.
like“Pick-up voltage”,“disconnect voltage”,“Normally open pick-up time”Wait.
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