Siemens SITRANS F M TRANSMAG 2 Operating Instructions Manual page 44

Functions
7.3 Function Group Diagnostics
This message does not mean that the tube has actually run empty. Therefore you must
make sure that the pipeline is actually empty before your remove the tube or the electrodes!
Note
Response threshold and timing behavior of the "immersion check" function depend on the
conductivity of the medium and the nominal width and cladding of the sensor (min 50μS/cm).
The switching threshold can be adapted to these conditions, if necessary (see menu item
6.7.5).
Device test (Menu item 2.4)
The device test comprises the following test components:
● Self test, menu item 2.4.1
● Display test, menu item 2.4.2
Simulation flow (Menu item 2.5.1)
The flow can be simulated in a range from ±110 %.
Here you also have the possibility of checking displays, totalizers, limit values and outputs in
certain measuring ranges. The running simulation is indicated by a flashing 'F'. It ends at the
end of a previously set period or after entering the 'End' parameter in this menu item.
Simulation outputs (Menu item 2.5.2, 2.5.3, 2.5.4)
With this function you can check the signal circuits of the analog output, the digital outputs 1
and 2 as well as the flow.
In the individual menu items, you select the value to be simulated with the
operating elements. You activate the setting by confirming the selected value with the
operating element
simulation of the output signal by actuating the operating element
Digital output 1 must be configured for the "Alarm" function for simulation of the alarm signal
(setting in the menu item "4.2.1 Function").
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WARNING
The self test routines are inserted in the current measurements and are completed after
about 60 seconds. If there is no error, "OK" is displayed, otherwise "not OK". The type of
error can then be read out in the menu item "2.1 Device status".
The LCD is checked with this menu item. The display is initially dark for approx. 5
seconds and then bright for approx. 5 seconds.
. The running simulation is indicated by a flashing 'F'. You end
(exit the menu item).
SITRANS F M TRANSMAG 2
Operating Instructions, 11/2009, A5E00102775-07
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