Tokyo Keiki UFL-30, Installation & Operation Manual

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I- 47
[Error Messages]
aa) “bW” : Bubble Warning
The error will be indicated when pulse height
fluctuates during AGA setting due to fluid
conditions like air bubble contained.
In such case, you might be required flow
condition change or change path method to
shorter path. (ex. V method to Z method.)
Then try again AGA function.
bb) “wW” : Wave distortion Warning
The error will be indicated when required ratio of
pulse height for AGA setting can not be kept due
to pipe conditions like inner corrosion.
In such case, you might be required mounting
position change or change path method to
shorter path. (ex. V method to Z method.)
Then try again AGA function.
cc) “ROFF” : No receiving echo Warning
The error will be indicated when any echo can
not be detected on transducers.
- Mounting distance
- Mounting direction
- Cable connection
- Fluid condition
- Pipe condition
- Parameter settings
…. and so on.
In such case, please check each cause and
improve. Then try again AGA function.
(19) Final check
Open "Monitor-Measurement data".
Commissioning is completed when the
flowmeter starts to show flow rate
measurements without any alarm indication.
Item Instruction
Communication Com. status between PC and Main unit
Breakdown Breakdown alarm
ROFF No receiving echo warning
Over Limit alarm
INTEG (Manual)
Totalizing status
(Manual or Timer mode)
INTEG (Timer)
Disturbance
Disturbance detection function status
Low range Low range detection
Check Check mode indication
Full scale Full scale error when PV exceeds
Low Battery Low battery alarm
AGC Auto Gain Control function status
Flow rate Measured flowrate
Path X Measured flowrate at each path
Velocity Averaged velocity
Fw Total Forward totalizing value
Bw Total Backward totalizing value
ROFF / DIS. Detection history (Q’ty)
Total Status Totalizing function mode status
Remaining Time Time indicates when timer mode
Go to Chapter II "Operation "
for setting output signals.