Is the display blank?
Recharge the battery.
If battery won't recharge then
replace the charger (if faulty) or
return the instrument for repair.
No
Turn instrument OFF/ON.
If the display is still scrambled/hung
up press the microprocessor reset
button. Return instrument for repair
if fault still present.
Yes
Is the display
scrambled or
hung-up?
Yes
Measurement differs from expected value. Unstable measurements. No (or poor) signal.
Problem probably due to non-constant fluid flow.
Ensure pipe data been entered correctly.
Ensure fluid type been entered correctly.
Ensure correct transducer type been selected.
Ensure transducer separation distance correct.
Ensure transducers are aligned correctly.
Ensure pipe diameter within specifications of the
selected transducers.
Ensure the pipe is completely full.
Ensure pipe surface is not corroded, or protective
surface loose.
Check for particles in the fluid.
Ensure temperature is set correctly. Ensure transducer cables are connected correctly.
Ensure transducers are positioned in accordance
with the recommended distance from bends etc.
Ensure flow velocity >0.01m/s.
Ensure sufficient acoustic couplant been applied to
the transducers?
If triple reflex mode is selected try double or single
reflex instead.
Check instrument using test block.
No
START
Are any
status messages
shown?
No
Note any active messages.
Refer to the message table in this
chapter to interpret the message
and view suggested response.
Yes
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