WIKA 732.15.160 - Manual (Page 4)

4
11265191.07 12/2012 GB/D/F/I
WIKA operating instructions differential pressure gauge models 712.15.160, 732.15.160
GB
1. Safety ... 3. Installation
2. General information
These operating instructions are based upon the following:
„ EN 837-2: Selection and installation recommendations for pressure gauges
„ Data sheet PM 07.30: Differential pressure gauges models 712.15.160, 732.15.160
„ Data sheet PM 02.01, PM 02.02, PM 02.04: Bourdon tube pressure gauges
3. Installation
The installation of the differential pressure gauge should be carried out in accordance with the
installation recommendations for pressure gauges per EN 837-2 /7.
„ Prior to the installation of the pressure gauge, the pipes should be thoroughly cleaned
„ The pressure gauge should be installed and operated such as to avoid exposure to
vibration.
Mounting by means of - rigid tailpipe and/or
- 4 M8 threaded mounting holes incorporated in the body
„ The pressure gauges should be protected against contamination and high temperature
fluctuations
„ The maximum permissible media/ambient temperature must not be exceeded
Fitting of the pressure connections as per the j and i symbols
j higher pressure ⇒ bottom pressure (p
B
),
i
lower pressure ⇒ working pressure/overriding pressure (p
D
)
p
B
= p
FL
+ p
D
(with p
FL
= hydrostatic pressure of liquid = r
•
g
•
h)
1. Safety
WARNING!
Before installation, commissioning and operation, ensure that the
appropriate differential pressure gauge has been selected in terms of
measuring range, design and specific measuring conditions.
Only work on the gauge with the voltage disconnected.
Non-observance can result in serious injury and/or damage to equipment.
Only appropriately qualified skilled personnel should work on these
instruments.