Functions
7.3 Function Group Diagnostics
SITRANS F M TRANSMAG 2
Operating Instructions, 11/2009, A5E00102775-07
41
● A flashing "F" process related error at the top right of the display indicates a process
error.
● A flashing "D" at the top right of the display indicates a device error.
Should errors in groups ’F’ and ’D’ occur at the same time, only ’D’ will flash.
In communication via PROFIBUS, the diagnostic message displayed here is also reported
under the extended diagnosis with the diagnostic bit "EXTENSION_AVAILABLE".
Table 7- 1
Error messages
Error message
Flashing indication
in display menu
Error is Signaled
at the analog
output
Error is signaled at
digital output 1
and 2
PROFIBUS
Measurement module failure
F
-
-
x
Calibration failure measurement
module
F
-
-
x
Simulation is running
F
-
-
x
Flow measurement unreliable
F
-
-
x
Calibration is running
F
x
x
x
Tube empty
F
x
x
x
Measuring range overflow > 110 %
F
x
x
x
COM Module failure
D
-
-
-
Memory failure
D
x
x
x
Software failure
D
x
x
x
Sensor failure
D
x
x
x
Flow measurement disturbed
D
x
x
x
For texts with more than 16 characters, the marks and in the first and last segment of
the device display respectively indicate that there are other characters to the left and/or right
of the displayed text. You can display these by actuating the and operating elements.
Electrode check (Menu item 2.2)
The electrode DC voltage is scanned cyclically when this menu item has been selected. This
detects e.g. deposits on the electrodes. If there is a fault or an error, the alarm signal ’Flow
measurement unreliable’ is triggered.
Note
This function requires a sensor with SmartPLUG.
Empty Pipe Det. (menu item 2.3)
The function checks whether the electrodes of the sensor are wetted by the medium. To do
this, you have to determine the interval between two monitorings.
If the electrodes have no contact with the medium, the alarm signal "Tube empty" is
triggered through the digital outputs. This alarm is also triggered in the case of an insulating
coating on the electrodes.