Version: TCM_0450_E80_M_EN_150209_E007
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Service and Maintenance
6. Service and Maintenance
6.1.
Maintenance
The TRICOR Mass Flow Meters do not require regular maintenance.
In case of abrasive or sedimenting media however, it is recommended to return the measuring system to the
manufacturer KEM after 8,000 hours of operation for re-calibration and pressure test. This interval may be
shorter when the medium is extremely abrasive or sedimenting.For best performance we recommend checking
the calibration every 5 years, in harsh environments even more frequently.
If for the specific application an obligatory calibration is required, refer to the corresponding national regulations
for the necessary calibration intervals.
6.2.
Trouble Shooting
In case the TRICOR Mass Flow Meter does not work properly, first check the following items:
No display, no LED lighting
All cables properly connected?
Connect the missing cables
Power supply switched on?
Switch on the power supply
Display positioned properly (compact and wall mount only)?
Remove the display and reset it properly
Internal fuse of the TCE blown?
For checking and changing the fuses refer to chapter 6.3.
Output frequency too high or unstable
Most probably EMC problems
Shield and ground properly connected?
Connect shield properly. If necessary, try additional means of grounding and shielding
Unstable flow reading with (theoretically) stable flow
Strong external vibrations?
Decouple the meter from the vibration source
Flow or pressure slugs in the medium?
Decouple the meter hydraulically
No frequency or current output with operating display
Output correctly wired?
Correct the wiring (see chapter 2.3)
Output correctly configured?
Correct the configuration (see chapter 4.5.8.1)
Wrong flow direction (Flow in the display is negative)?
Change flow direction (see chapter 4.5.6.3)
Pressure display shows
“PRESS ERROR”
Input correctly wired?
Correct the wiring (see chapter 2.3)
Sensor working normally?
Check with external digital Ampere meter. If required, replace the sensor
No pressure compensation
Compensation enabled?
Enable compensation (see chapter 4.5.6.6)
Sensor working normally?
Check with external digital Ampere meter. If required, replace the sensor