Operating Instructions
OIO 15en Edition 2020-05
31
Possible faults
Troubleshooting
Troubleshooting
Faults can have different causes. The following tables list the symptoms of a fault, the possible causes
and measures for elimination.
Possible faults
Tab. 1 Possible faults
Troubleshooting
Fault
Possible cause / Remedy
□
Flowmeter leaks
1, 2, 10
□
No flow
3, 11, 12, 24, 26, 27
□
Negative flow
5, 19, 21
□
Flowmeter does not generate a pulse
3, 5, 6, 9, 10, 12, 15, 22, 24, 26, 27
□
Pressure loss too high
13, 16, 24, 25
□
Measured values not realistic
3, 5, 6, 7, 9, 11, 14, 17, 18, 19, 20, 21, 22, 23, 24, 25
□
No signal of the temperature sensor
7, 8
No.
Possible cause
Remedy
1
Seal preload too low
► Preload the screws.
2
Seal damaged
► Replace the seal.
► Check the chemical resistance of the seal.
3
Foreign bodies in the liquid and/or
flowmeter
► Disassemble the flowmeter and clean it.
► Use the commissioning filter.
5
Pick up not connected correctly
► Check the connection of the pick up.
► Check the supply voltage for the pick up, while
observing the pick up operating instructions.
6
Pick up defective
► Check the function of the pick up, while observing
the pick up operating instructions.
► Replace the pick up.
7
Temperature sensor mounted
incorrectly
► Install the temperature sensor correctly, while
observing the temperature sensor operating
instructions.
8
Temperature sensor defective
► Check the function of the temperature sensor, while
observing the temperature sensor operating
instructions.
► Replace the temperature sensor.
9
Dry sleeve not adjusted correctly
► Set the dry sleeve correctly, while observing the pick
up operating instructions.
10
Dry sleeve destroyed
► Replace dry sleeve, please contact the manufacturer
for information.
11
Liquid lubricates too little
► Use the OMK series.
12
Feed pressure too low
► Increase the feed pressure.
13
Viscosity of the liquid too high
► Increase the temperature, while observing the
permissible temperature range.
14
Viscosity of the liquid too low
► Use the OMK series.
