Communication digital phase sequence meterSuitable for motor drive systems and electrical systems powered by three-phase power supply in various commercial and industrial places, and for determining the direction of phase sequence rotation in the field of electrical systems. The LED clearly indicates the live status of the three phase lines and the direction of phase sequence rotation to determine the correct connection method.
Notes:
1. 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.
2. It is strictly prohibited to replace the battery or disassemble the instrument during the measurement process.
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.
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
If the instrument accidentally gets water or liquid, it must be dried before continuing to use.
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.
To ensure accurate measurement, please do not adjust or change the internal circuit of the instrument on your own to avoid danger.
8. The use of instruments should not exceed the time limit for continuous operation: when the input voltage of two or three phases is 220V, the continuous operation time should not exceed 60 minutes, and when the input voltage is 400V, the continuous operation time should not exceed 4 minutes.
9. The instrument must be used by professionally trained personnel and operated strictly in accordance with the user manual.