Heinrichs Messtechnik GmbH
OPERATING MANUAL TMU-W / UMC4
Page 107 of 118
8.
Trouble shooting
Should you experience problems with your flow meter after the meter has been installed and commissioned,
go through the following checklist of regularly encountered errors before contacting our service department.
8.1
Self-help Checklist
Observation
Possible causes and remedy
The display is blank and there
are no output signals
The supply voltage cables are not properly connected. Check!
The transmitters fuse has blown.
For position and approved replacement types refer to section 5.1
on page 35.
Measuring electronics are defect. Contact HM service
The display is blank but the
output signals are delivering
signals
The BE4 display unit has been rotated and was incorrectly seated
back onto its connector. Remove the BE4 unit and replace it
carefully onto its connector.
The BE4 Unit is defect. Contact service
The display contains
undefinable characters
A foreign language is set.
Refer to section 7.2.13.1 on page 95 to change the language
The communication to the display has been disrupted.
Restart the transmitter by removing its power.
If the problem persists, contact our service department.
A measured value is displayed
but is not being updated on a
regular basis
The Ambient temperature is below -25 °C
The function of the LCD display cannot be guaranteed below -25
°C, but will return to full function once the ambient temperature
rises.
An error message is displayed
Delete the error as described in section 7.2.13.4 and restart the
transmitter. If the error persists, note the error code and refer to
section 8.2.3 for an error description.
If the error could not be rectified in this way, contact our service
department for further assistance
Table 12: Self-help Checklist
