夜上海龙凤坊_深圳楼凤qm桑拿论坛_夜上海龙凤坊

Multifunctional power meter is a kind of power monitoring instrument with high performance, which is applied to power distribution network system such as energy management system, power monitoring system, industrial and mining enterprise, public facility, intelligent building and switch cabinet.

In the ordinary use process, because of its easy operation, we do not pay much attention to its operation details, resulting in the instrument life reduced short, even more cause accidents, so in use, we should know what?

1. It is better to be electrified for 15 minutes before use.

2. Keep the instrument in shock and impact state.

3. Do not use in places with excessive dust and harmful gas.

4. The input wire should not be too long. If the input end of the measured signal is too long, the double-stranded shield wire can be used.

5. If the signal is accompanied by high-frequency interference, the low-frequency filter can be tested online.

6. When not in use for a long time, power should be used every three months, and not less than 4 hours each time.

7, preservation, should avoid direct light, issues on 25 ° C ~ 55 ° C temperature.

8. If the meter is not displayed, check the auxiliary power first to see if the voltage is within the range.

9. If the display is abnormal, check whether the input signal is normal and whether the signal terminal is tightened.

10. Unless PT has sufficient power, PT signal cannot be used as auxiliary power to ensure the instrument to work normally.

11. The current terminal screw in the CT circuit must be tightened to ensure the inlet/outlet contact is reliable, so as to avoid fault.

12. If the instrument is to be calibrated, the calibration instrument should be better than 0.1 to ensure the accuracy

In order to make the instrument last longer and avoid some accidents, we should know some details of its operation and put them into action.