1. Is the instantaneous flowmeter fluctuating? A, the signal intensity fluctuates greatly; B, the measured fluid fluctuation is large; solution: adjust the probe position, improve the signal strength (maintain above 3%) to ensure the signal strength is stable, if the fluid fluctuation is large, the position is not good, re Select points to ensure 5D working conditions after the first 10D. 2. Is the signal of the external clip type flowmeter low? If the pipe diameter is too large, the pipe is fouled seriously, or the installation method is wrong. Solution: For over-sized pipe and serious scaling, it is recommended to use a plug-in probe or select the “Z†type mounting method. 3. Is the signal reduced after the plug-in probe is used for a period of time? There may be a shift in the probe or a thick scale on the probe surface. Solution: Re-adjust the probe position and clear the probe emitting surface. 4, boot no display check whether the power attribute corresponds to the rated value of the meter, whether the fuse is blown, if the above questions are not recommended, it is recommended to send the instrument back to our company for inspection by professional technicians. 5, the instrument is only backlit after booting, no characters show that this situation is generally the program chip lost, it is recommended to send the instrument back to our company for processing. 6. The meter cannot be used under strong interference on the spot? The power supply has a large fluctuation range, and there are inverters or strong magnetic fields around, and the grounding wire is incorrect. Solution: Provide a stable power supply to the instrument. The instrument is installed away from the inverter and strong magnetic field interference, and has a good grounding wire. Silver Needle,White Peony,Other White Tea Prettyfly Technology Co., Ltd. , http://www.prettyflytea.com