Siemens FIDAMAT 6 Operating Instructions Manual page 104

Functions
6.6 Configuration
Example for zero calibration
Calibrate the zero point via the binary inputs by taking the following steps.
Default settings:
1. Assign one binary input with the "Zero gas" function.
2. Assign one binary input with the "Zero Calib." function for zero calibration.
3. Exit function 72 and accept the changes.
Perform calibration:
Note
The binary input assigned with "Zero gas" can only be effectively controlled in "Measuring"
operating state! Therefore make sure that the device is in "Measuring" state.
1. Now set the "Zero gas" binary input with the necessary voltage for at least 1 second.
The device opens the zero gas valve. At the same time, the device switches to
"Calibrating" operating state (shown in the measured value display with "■ CAL") and
activates the "Function control" (shown in the measured value display with "■ CTRL").
2. Wait until the measured value has stabilized.
3. Now set the "Zero Calib." binary input with the necessary voltage for at least 1 second.
The device calibrates the zero point. Afterwards, it leaves the "Calibrating" operating
state" ("□ CAL") and deactivates the "Function control" ("□ CTRL"). It is now back in
"Measuring" state. Calibration is complete.
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Operating Instructions, 03/2018, A5E00222135-03
FIDAMAT 6