Aft AFT-2000W - Other Problems and Solutions

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AFT-2000W User Manual
(3) Too much fouling
(4) The pipe liners are too thick.
(5)Problem with transducers
cords
(3) Check the
cords
(4) Check the
coupler
Q
Frequ Output Over
The actual frequency for the
Frequency Output is out of the
range set by the user
Check the value
entered at M66,
M67,M68 and M69,
and try to enter a
larger value on
M69
F
System RAM Error
Date Time Error
CPU or IRQ Error
ROM Parity Error
(1) Temporary problems with
RAM, RTC
(2) Permanent problems with
hardware
(1) power on again
(2) contact factory
G
Adjusting Gain
Instrument is in the progress of
adjusting the gain for the signal,
and the number indicates the
progressive steps
K
Empty pipe
No liquid inside pipe
Setup error on M29
Relocate where
the pipe is full of
liquid
Enter 0 on M29
5.3 Other Problems and Solutions
1. 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?
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.
2. The displayed flow rate is much lower or much higher than the actual flow rate in the pipe under
normal working conditions.
(1) There is probably an offset value wrongly entered by the user in M44. Enter ‘0’ inM44.
(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.