Siemens SITRANS F TRANSMAG 2 Operating Instructions Manual page 74

Functions
8.7 Function Group Service
Control values (Menu item 6.5)
These display values are for trained service personnel, since they are device-internal data mainly
for error diagnosis.
These include:
• Magnet voltage Um, Uref, menu item 6.5.1
• Signal voltage Usig, menu item 6.5.2
• Electrode voltage Uel1, menu item 6.5.3
• Electrode voltage Uel2, menu item 6.5.4
• Current flow in % of the set full scale value, menu item 6.5.5
• Measuring frequency, menu item 6.5.6
• Self test, menu item 6.5.7
• Service information, menu item 6.5.8
• Digital input, menu item 6.5.9
Zero Trim (Menu item 6.6)
This function is divided into:
• Zero flow correction, menu item 6.6.1
This menu item serves to adapt the local hydraulic conditions. The zero point has a speed value
of -1 to +1 m/s added. This setting is undone by entering "0".
• Start correction, menu item 6.6.2
This automatically determines the hydraulic zero point. This value is visible in menu item
6.6.1 and can be adapted there, if necessary, or undone by entering "0".
Trim param. (menu item 6.7)
You have the following setting options in this menu:
• Calibration factor, menu item 6.7.1
Due to the local hydraulic conditions, any error related to the full scale value is corrected in
this menu item. The value to be set here corresponds to a multiplicator of the measured value.
An absolutely correctly set zero point is the prerequisite for proper functioning.
• CFH, menu item 6.7.2
This is a factory determined hydraulic calibration value at a flow of 1 m/s. This value is
automatically taken from the SmartPLUG of the measuring sensor. For older measuring
sensors without a SmartPLUG, the value must be transferred manually from the nameplate.
• CFR, menu item 6.7.2
This is a calibration value for the reference inductor in the measuring sensor calculated in the
factory. This value is automatically adopted by the SmartPLUG.
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TRANSMAG 2 with MAG 911/E
Operating Instructions, 03/2021, A5E00102775-AC