Product Manual
Wall Mounted Ultrasonic Flowmeter---User Manual
38
F
See Table 1
Temporary problems while
self-checking with power ON
(1) Reboot the system
(2) Contact the
manufactuere
Permanent problems with
hardware
G
Adjust Gain>S1
Adjust Gain>S2
Adjust Gain>S3
Adjust Gain>S4
(Shown in
M00,M01,M02,M03)
Instrument is in the progress of
adjusting the gain for the signal,
and the number indicates the
progressive steps. If stopping at
S1 or S2 or between S1 and S2,
it means low receiving signal.
No need for action
K
Empty pipe, Setup on M29
No liquid inside pipe or Error
setup.
(1)If the pipe is not full,
relocate the meter to
where the pipe is full of
liquid.
(2)If the pipe is full, enter 0
on M29
7.3 Other Problems and Solutions
Q1. When the actual flow inside the pipe is not standstill, but the instrument displays 0.0000 for the flow
rate, and ‘R’ displaying signal strength and the signal quality Q (value) has a satisfactory value?
RE: The problems are likely caused by the user who has used the ‘Set Zero’ function on this
non-standstill flowing pipe. To solve this problem, use the ‘Reset Zero’ function on menu window M43.
Q2. The displayed flow rate is much lower or much higher than the actual flow rate in the pipe under
normal working conditions.
RE: (1) There is probably an offset value wrongly entered by the user in M44. Enter ‘0’ in M44.
(2) Problem with transducer installation.
(3) There is a ‘Zero Point’. Try to ‘zero’ the instrument by using M42 and make sure that the flow inside
the pipe should be standstill.
Chapter!8!Appendix!
8.1 Wiring Diagram
The following wiring diagram is for wall mounted ultrasonic flow meters.
The main board of the wall mounted unit is shown in the following picture. All the wiring terminal