
TECHNICAL DESCRIPTION
ULTRAFLOW
®
54 DN150-250
5512-876 GB/04-2012/Rev. F1
59
11
Troubleshooting
Before sending in the sensor for repair, please use the error detection table below to help you clarify the possible
cause of the problem.
Symptom
Possible cause
Proposal for correction
No update of display values
No power supply
Replace battery or check mains supply
No display function (blank
display)
No power supply and backup
Replace back-up cell. Replace battery or
check mains supply
No accumulation of m³
No volume pulses
Incorrect connection
Check flow sensor connection.
(Check wit h PULSE TESTER, if necessary)
Flow sensor inverted
Check flow sensor direction
Air in sensor/cavitation
Check installation angle. Check if there is air
in the system or cavitation from valves and
pumps. If possible, try to increase the static
pressure.
Flow sensor error
Replace flow sensor/send sensor for repair
Erroneous m³ accumulation
Erroneous programming
Check accordance between pulse figures of
calculator and flow sensor
Air in sensor/cavitation
Check installation angle. Check if there is air
in the system or cavitation from valves and
pumps. Increase the static pressure, if
possible
Flow sensor error
Replace flow sensor/Send sensor for repair
Содержание ULTRAFLOW 54 DN150-250
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