23 Instruction Manual
4. How To
4.1 How to judge if the instrument works properly
Enter into M08,
If ‘R’ is displayed on the screen, the instrument is working properly,
If 'E' is displayed, the current loop output is over-ranged. Increasing the range setting in
M57 will make the 'E' letter disappear. If you do not use current loop output, you may ignore
this error.
If 'Q' is displayed, the frequency output is over-ranged. Increasing the range setting in M69
will make the 'Q' letter disappear. If you do not use frequency output, you may ignore this
error.
If an ‘H’ flashes on that place, there could be poor signal received. Please refer to the
chapters on diagnosis.
If 'G' is displayed, the flow meter is adjusting system gain. This is normal as far as it does
not last long time.
If an ‘I’ is displayed, it means that there is no signal detected.
If 'J' is displayed, there is hardware problem. Turn power off, and then turn power on again.
If the problem remains, refer to Chapter 5 for diagnosis details.
4.2 How to judge the liquid flowing direction
Make sure that the instrument works properly
Check the flow rate for the indication. If the displayed value is POSITIVE, the direction of
the flow will be from the A transducers to the B transducers; if the displayed value is
NEGATIVE, the direction will be from the B transducers to the A transducers.
