Omega FMG70B Series, User Manual

Page: 13 / 24

Commissioning and measuring mode
Technical changes reserved - 13 -
6 Commissioning and measuring mode
Before switching on the FMG70B for the first time, please follow the instructions in the
following section.
6.1 Commissioning
Check that

the FMG70B has been installed correctly and that all screw connections are sealed.

the electrical wiring has been connected properly.

the measuring system is vented by flushing.
6.2 Switching on and off
The FMG70B has no switch and can therefore not be switched on and off independently.
Switching on and off takes place via the connected supply voltage.

Switch on the supply voltage.
The green LED lights up once for~1 s. The FMG70B is ready and
goes into measuring operation.
6.3 Measuring mode
In measuring mode, the green LED flashes proportional to the measured flow.
The human eye cannot detect the flashing any longer from a
frequency of ~30 ... 40 Hz.
In that case the green LED seems to be lit permanently.
The following subsections only apply to devices which have the correspondent functionality.
ing subsections only apply to devices which have the correspondent functionality.
FMG70B with frequency output:
The FMG70B provides according to the version a flow
proportional NPN, PNP or Push-Pull square wave
signal.
The frequency of the pulse output changes according
to the flow (

Fig.).