Vega VEGADIF 85 - Mounting and Connection Instructions

16
4 Mounting
VEGADIF 85 • Modbus and Levelmaster protocol
53571-EN-230814
Note:
Follow the mounting instructions of the respective manufacturer and
seal the thread, e.g. with PTFE tape.
Valveblocksareusedforinitialshut-owhenconnectingthedier-
ential pressure transmitter to the process. They are also used for pres-
sure compensation of the measuring chambers during adjustment.
3-fold and 5-fold valve blocks are available (see chapter " Mounting
and connection instructions").
Free openings on the process assembly must be closed by ventilation
valves or closing screws. Required torque see chapter " Technical
data".
Note:
Use the supplied parts and seal the thread with four layers of PTFE
tape.
4.4 Mounting and connection instructions
When connecting VEGADIF 85 to the measuring point, take note of
thehigh/lowpressuresideoftheprocesscomponent.
1)
.
The " H"identiesthehighpressureside,thelowpressuresidedue
to an " L"ontheprocesscomponentnexttotheovalanges.
Note:
The static pressure is measured on the low pressure side " L".
2
1
H L
Fig. 8: Marking for high/low pressure side on the process component
1 H = High pressure side
2 L = Low pressure side
Valve blocks
Ventilation valves, closing
screws
Connection high/low
pressure side
1)
 Thepressureeectiveon"H"isconsideredaspositive,thepressureeec-
tiveon"L"asnegativeinthecalculationofthepressuredierence.