phase sequence meterIt is a precision testing instrument suitable for discriminating the direction of phase sequence rotation in motor drive systems and electrical systems powered by three-phase power supply in various commercial and industrial places. It clearly indicates the charging status and phase sequence rotation direction of the three phase lines through LED to determine the correct connection method.
Notes:
1. It is strictly prohibited to replace the battery or disassemble the instrument during the measurement process.
When the following situations occur, the instrument should be stopped and checked and repaired before use.
A. The appearance of the instrument is significantly damaged
B. The instrument cannot complete specific measurement operations
C. The instrument remains idle for a long time under improper conditions
D. The instrument was severely compressed during transportation
E. The instrument is damp or immersed in water
When the input terminal of the instrument is connected to the tested terminal, if the LCD displays a phase loss or all phase indicator lights are not on, it does not mean that there is no voltage in the measured circuit of the instrument. Please use the instrument to confirm before operating to avoid danger!
When the low voltage indicator symbol appears on the instrument, it is necessary to replace the battery of the same specification in a timely manner. When installing the battery, the input terminal of the instrument must be disconnected from the measured circuit to avoid electric shock! When the instrument is not used for a long time, the battery should be removed to prevent battery leakage and damage to the instrument.
5. This instrument is a precision measuring instrument. To extend its service life, it should be avoided from being used in corrosive environments such as strong acids and alkalis, as well as high temperatures and humidity, to avoid damage to the instrument.
To ensure accurate measurement, please do not adjust or change the internal circuit of the instrument by yourself to avoid danger!
If the instrument accidentally gets water or liquid, it must be dried before continuing to use.
8. The use of instruments shall not exceed the time limit for continuous operation of the instrument: the continuous operation time shall not exceed 60 minutes when the input voltage of two or three phases is 220V, and the continuous operation time when the input voltage is 400V.