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technical article
Common failures of metal pipe flow meters in daily use
2011-12-2 10:08:22

First, the pointer stops at a certain position


的浮子卡死 The main reason is that the float of the float flowmeter is stuck.


Large measurement error

1. Installation does not meet requirements


2. The large change in the density of the liquid medium is a cause of the larger error.


3. Because the gas medium is greatly affected by temperature and pressure, it is recommended to use the voltage stabilization compensation method to obtain the real flow


Third, pointer jitter

1.Slight pointer jitter


2. Poison pointer shaking

3. Vigorous pointer jitter


Fourth, no on-site display

1. Check if the wiring is correct


2.Check if the power supply is correct


3. Reinstall the LCD module, and check the contact is not correct.

4. For multi-wire power supply mode, check whether the terminal is connected to an ammeter or short circuit.


Fourth, no current output


1. First see if the wiring is correct


2. Whether the LCD has a display, if there is no output. There are multiple output tubes broken. Need circuit board


Five, the cumulative pulse output is incorrect


1. Check if the alarm value of the cumulative pulse output is set to zero


2. Circuit board failure, replace the circuit board