8 Installation
8.5 Performing the zero flow calibration
The zero flow calibration is a compulsory operation for the sensor
installation. Use one of the following methods to perform the
calibration:
• Service App S4C-FS
• Optional sensor display
8.5.1 Prerequisites
Before you start the calibration, make sure the following conditions are
met:
• The sensor must have been mounted on top of the G 3/4" ball
valve.
• The ball valve must be open but with the sensor tip outside of the
pipe. That is, the sensor tip still remains inside the ball valve.
These ensure that the sensor is exposed to the system pressure during
calibration.
8.5.2 Using the service App S4C-FS
This is the most convenient way especially for a sensor without the
display.
1. On your Android device, download the S4C-FS app from Google
Play Store or from the SUTO website.
2. Install S4C-FS.
3. Launch S4C-FS, and enter Settings > Calibration.
4. Follow the onscreen instructions to perform the zero flow
calibration.
For more information about how to download, install, and operate the
S4C-FS, see the S4C-FS Instruction and Operation Manual, which you
can download from our website (Download > Search: S4C-FS).
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