Fluid Components International CMB - Manual (Page 99)

15. CT transmitter error messages
The integrated CT transmitter distinguishes between two types of errors. Self-test errors such as prob-
lems with a sensor line or inconsistent parameter inputs are displayed as text error messages. Once the
error has been eliminated, the message automatically disappears from the display. For further informa-
tion, see Section 15.3.1 Display of self-test errors.
Errors that are attributable to system memory or software, division by zero, or a fault in the electronics
unit are designated as system errors. These error messages are not reset automatically after the error
(usually of very brief duration) is eliminated. Before resetting a system error manually, we advise that
you contact our technical service department.
For further information, see Section 15.3.2 Display of
system error.“
If the cause of any of the error messages described below cannot be eliminated, contact the device ven-
dor.
15.1 Standard operating mode
The transmitter operates as described above. After the cause of the error message has been eliminated,
the message automatically disappears. The self-test for monitoring the excitation current can be activated
or deactivated via the “Sensor test” function.
15.2 Custody transfer mode
When the device is in Custody transfer mode, any error will remain on the display until it is cleared by
pressing the external reset pushbutton.
15.3 List of error messages
15.3.1 Display of self-test errors
Self-test errors are displayed as plain text in the set language (English or German) on the second line of
the LCD.
Display (English)
Display (German) Description Possible cause of error and
remedy
empty pipe Rohr leer
Empty-pipe detection has been
activated.
Fluid density is below the limit
value for density; empty-pipe
detection, pipe is empty.
Product contains air bub-
bles/pipe is empty. Bubble-free
filling must be ensured.
Power fail? Netzausfall?
Will detect the interruption of the
supply voltage for transmitters
approved for custody transfer
operation if the flow rate is >
0.5 % of upper-range value. Check power supply
malfunction T Bruch/Schluß T
Interruption/short circuit in the
temperature sensor measuring
circuit Check the lines between tem-
perature sensor and transmitter.
Measure resistance of PT100
CMB & CT OPERATING MANUAL
Part No 06EN003384 rev. 1.6 Page 99 of 106