Endress+Hauser Proline Promass 80 - Current output 1: active;passive; Configuring the current output (I;O board)

Device Functions Proline Promass 80 15 Group SYSTEM PARAMETER
Endress+Hauser 55
MEASURING MODE
(contd)
Pulse output
STANDARD
Only positive flow components are totaled. Negative components are not taken into
account.
SYMMETRY
Positive and negative flow components are taken into account.
! Note!
The direction of flow can be output via the configurable status output.
Status output
! Note!
Only if in the ASSIGN STATUS function the LIMIT option is selected.
STANDARD
The status output signal switches at the defined switching points.
SYMMETRY
The status output signal switches at the defined switching points, irrespective of the sign.
In other words, if you define a switching point with a positive sign the status output
signal switches as soon as the value is reached in the negative direction (negative sign)
(see illustration).
Example for the SYMMETRY measuring mode:
Switch-on point: Q = 4
Switch-off point: Q = 10
m = Status output switched on (conductive)
n = Status output switched off (non-conductive)
A0001247
POSITIVE ZERO RETURN Use this function to interrupt evaluation of measured variables. This is necessary when a
piping system is being cleaned, for example.
This setting acts on all functions and outputs of the measuring device.
Options:
OFF
ON (signal output is set to zero flow value, temperature and density are output normally)
Factory setting:
OFF
Function description SYSTEM PARAMETER
0
-4
-10
4
10
Q
t
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