Pressure Monitoring / Analogue Function - ProMinent DULCOMETER PH-501 Assembly And Operating Instructions Manual

4.3 Pressure monitoring / analogue function

The analogue output can be configured.
[OU2] defines whether the set measuring range is provided as 4...20 mA
([OU2] = [I]) or as 20...4 mA ([OU2] = [InEG]).
Scaling can be set by means of the teaching process or by entering a value for the
ASP and AEP parameters.
Teaching the analogue start point [tASP] or setting the parameter [ASP] defines
at which measured value the analogue signal is 4 mA (20 mA at [InEG]).
Teaching the analogue end point [tAEP] or setting the parameter [AEP] defines
at which measured value the output signal is 20 mA (4 mA at [InEG]).
Minimum distance between [ASP] and [AEP] = 25 % of the final value of the
measuring range.
Factory setting
I [mA]
20
4
MAW
P = system pressure , MAW = initial value of the measuring range, MEW = final value of
the measuring range
: [OU2] = [I];
1 2
In the set measuring range the output signal is between 4 and 20 mA ([OU2] = [I])
or between 20 and 4 mA ([OU2] = [InEG]).
It is also indicated:
System pressure above the measuring range:
- Output signal 20 to 20.5 mA at [OU2] = [I].
- Output signal 4 to 3.8 mA at [OU2] = [InEG].
System pressure below the measuring range:
- Output signal 4 to 3.8 mA at [OU2] = [I].
- Output signal 20 to 20.5 mA at [OU2] = [InEG].
1
2
P
MEW
: [OU2] = [InEG]
Measuring range scaled
I [mA]
20
4
MAW ASP
1
2
P
AEP MEW
E-1381
7
UK