Commissioning
50 FSM4000 D184B140U02
6. System zero point (menu item “System Adjust”)
When commissioning an older model flowmeter sensor or checking the system, you can set
the system zero point on the transmitter after a warmup period. The fluid in the flowmeter
sensor must be at absolute standstill. The measuring tube must be completely full. The
adjustment can now be made manually or automatically via the "System zero point"
parameter. Select the parameter by pressing ENTER. Use the arrow keys to call up
"automatic" and press ENTER again to start the adjustment. The adjustment runs approx. 60
seconds and should be within a range of ± 10%. If the value measured is outside this limit,
no adjustment is performed. The adjustment can also be performed via the external Contact
Input / Ext. Sys. Zero Point, page 74.
7. Detector empty pipe
(menu item “Detector e. pipe”), for devices with meter size from DN 10 and/or without
preamplifier.
When the DEP mode "Standard" is selected, it is not required to perform an adjustment
onsite. The transmitter works with standard setup data. If the function is not performed
correctly, a new adjustment must be run with the fluid onsite. The adjustment can be made
with a full or empty meter pipe.
8. Extended diagnostic functions
To measure the DC resistance or the coil temperature, the signal cable length must be
entered. To use the functions Electrode voltage, Electrode balance and Electrode state, the
electrode zero must be adjusted. See the "Diagnostics/Adjustment" submenu, page 85 or
chapter "7.4 Additional information regarding use of enhanced diagnostic functions".
Important
If the flow indicator shows the incorrect direction after successful startup of the meter, e.g.,
reverse instead of forward, correct this in the Operating Mode submenu of the transmitter.
First switch off the Programming Protection ("Prog. Level" "Specialist"). Then select the
parameter "Flow indication" and change "Standard" to "inverse". Finally, activate Programming
Protection via "Prog. Level" "Locked").
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