RHEONIK RHE21, Инструкция по установке и запуску

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RHE21 Installation & Startup Guide – Doc. No. 8.2.1.04 – Ver. 1.31 22 / 58
4.3 Zero Offset Calibration
Before carrying out a zero offset calibration, make sure that there is a zero flow condition in the
RHM sensor i.e. valves have been closed upstream and downstream of the RHM meter body.
Navigate to the “Zero Now” menu item as shown in Figure 19 to perform the zeroing procedure.
It will be necessary to enter the user passcode (see section 4.2).
Figure 19: RHE21 Menu - Zero Offset Calibration
To perform the zeroing procedure, press NEXT at the Y/N confirmation screen to change the “N”
to “Y”. Press ENTER to start the procedure or ESC to cancel. Once started, a countdown timer will
begin. When it reaches 0, the zero offset calibration procedure is complete. Return back to the
main screen by pressing the EXIT pushbutton twice.
4.4 Change of Positive Flow Direction
Rheonik mass flow meters are bi-directional and can operate with flow passing through them in
any direction. In some cases after installation, the transmitter may read negatively because of
orientation. In this case, the flow direction indication can be reversed within the transmitter. To
change the positive flow direction, navigate to the “Phase Measurement” menu item under
Service Login (Figure 20).
Change the value of the “PhsFlwDirConfig” parameter from “0” to “1” (or vice versa) to change
the flow direction indication of the transmitter.
Main Screen