WIKA DPT-10 - Manual (Page 23)

+
–
min.
max.
1
2
3
4
5
+
–
Fig. 19: Measurement setup in closed vessel with superimposed steam
1 Condensate vessel
2 Blocking valve
3 Precipitator
4 Drain valve
5 DPT10
4 .5 Measurement setup density and interface
Density and interface measurement are carried out in level measure-
ment mode.
à Mount DPT10 below the lower isolating diaphragm
à The ambient temperature should be the same for both capillaries
Information:
The density measurement is only ensured at a level above the upper
measuring point. Homogeneous density allocation is a prerequisite.
=
∆p
h g
+
–
0
,3
m
Fig. 20: Measurement setup with density measurement. Density 1 and h = 0.3 m
means Δp = 29.4 mbar. With density change: e.g. measured Δp = 35.3 mbar
corresponds to density 1.2, measured Δp = 23.5 mbar corresponds to density
0
.8
Density measurement
Differential pressure transmitter DPT10 - metal measuring diaphragm • Foundation Fieldbus 23
4 Mounting
37246
-
EN
-100120