IFM Electronic Efector 300, Руководство по эксплуатации

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Both electrodes must be wetted by the medium� Otherwise the signal
[SEnS] for empty pipe is provided, if empty pipe detection is enabled�
4.2 Processing of the measured signals
The unit displays the current process values�
It generates 2 output signals according to the parameter setting�
OUT1/IO-Link:
Parameter setting
-Analogue signal for volumetric flow quantity (→ 10.3)
-Communication interface (→ 10.6.5)
OUT2: Parameter setting
-Analogue signal for temperature (→ 10.4)
4.3 Flow rate measurement
An analogue signal which is proportional to the volumetric flow (4���20 mA) is pro-
vided on output 1 in case of medium flow in the measuring pipe� (On the analogue
functions → 4.7)
In addition to the flow velocity, the unit also detects the flow direction� An arrow on
the unit indicates the positive flow direction�
The flow direction can be inversed (→ 10.5.4).
► Use the supplied label to mark the changed flow direction�
Direction of flow corresponds to "flow direction"
> process value and display positive�
Direction of flow against "flow direction"
> process value and display negative�
Only positive process values are processed for the signal output�
4.4 Consumed quantity meter
The unit has an internal mass flow meter which continuously totals the volumetric
flow quantity� The total corresponds to the current consumed quantity�
• The quantity meter takes account of the flow direction for totalisation: