Mount
External ventilation for VEGABAR
ing instruction
Document ID:
35621
1 Conte
nts
Conten
1 For your safety
2 Product description
3 Mounting
4 Supplement
ts
1.1 Authorised personnel . . . . . . . . . . . . . . . . . . . . . . ..
1.2 Appropriate use . . . . . . . . . . . . . . . . . . . . . . . . . . . .
1.3 General safety instructions . . . . . . . . . . . . . . . . . . . .
1.4 Safety instructions for Ex areas . . . . . . . . . . . . . . . . .
2.1 Configuration . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
2.2 Principle of operation . . . . . . . . . . . . . . . . . . . . . . . .
3.1 Mounting instructions . . . . . . . . . . . . . . . . . . . . . . . .
3.2 Mounting steps. . . . . . . . . . . . . . . . . . . . . . . . . . . . .
4.1 Technical data . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
4.2 Dimensions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
3
3
3
3
4
4
5
5
7
8
2 E
35621-EN-090121
xternal ventilation for VEGABAR
your safety
1 For
or your safety
1 F
1.1 Authorised personnel
All operations described in this operating instructions manual must be
carried out only by trained specialist personnel authorised by the plant
operator.
During work on and with the device the required personal protective
equipment must always be worn.
1.2 Appropriate use
The external ventilation is an accessory or retrofit part for VEGA
pressure transmitters.
1.3 General safety instructions
The safety information in the operating instructions manual of the
respective sensor must be noted.
1.4 Safety instructions for Ex areas
Please note the Ex-specific safety information for installation and
operation in Ex areas. These safety instructions are part of the
operating instructions manual and come with the Ex-approved
instruments.
Use in dust-Ex applications is not permitted.
35621-EN-090121
External
ventilation for VEGABAR 3
1 32
2 Produc
t description
Scope of delivery
Components
Application area
2 Produc
t description
2.1 Configuration
The scope of delivery encompasses:
l External ventilation
l Documentation
- this operating instructions manual
The external ventilation consists of a mounting boss with connected
PVC hose.
Fig. 1: External
1 Thread with teflon tape
2 Mounting boss
3 PVC hose
ventilation
2.2 Principle of operation
The external ventilation is an accessory or retrofit part for VEGABAR
series 50 and 60 pressure transmitters. It is used for instruments with
relative pressure measuring ranges as well as the following aluminium
and stainless steel housings.
l Aluminium single chamber housing
l Aluminium double chamber housing
l Stainless steel housing, electropolished
l Stainless steel precision casting, single chamber housing
l Stainless steel precision casting, double chamber housing
The external ventilation is screwed into the sensor housing instead of
the protective cover of the measuring cell ventilation.
Functional principle
The external ventilation protects the ventilation opening against
pollution and moisture and ensures also the effectivity of the filter
element.
Mounting can be carried out at any time. It is not necessary to demount
the pressure transmitter or interrupt the power supply.
4 E
35621-EN-090121
xternal ventilation for VEGABAR
3
2
1
1
3 M
ounting
Tools
Mounting position
3 Moun
ting
3.1 Mounting instructions
For mounting, a spanner with SW (spanner width) 11 and 13 is
required.
The sensor housings have two filter elements. The upper one near the
cable glands is used to ventilate the electronics housing. The lower
filter element in the area of the base is used to ventilate the measuring
cell.
The external ventilation is generally used for the lower filter element.
The following illustration shows the mounting location.
Fig. 2: Mounting
chamber housing
1 Mounting location of the external ventilation
2 Aluminium single chamber housing
3 Aluminium double chamber housing
location for the external ventilation with single and double
35621-EN-090121
External
3.2 Mounting steps
Proceed as follows:
1 Loosen, unscrew and remove the plastic protective cover with
spanner SW 11.
The protective cover is no longer required. Filter and O-ring must
remain in the opening. The opening must be free of dirt.
2 Screw the external ventilation manually into the thread. Tighten
with spanner SW 13.
Max. torque see chapter "Technical data".
ventilation for VEGABAR 5
1 2
3 M
ounting
Fig. 3: Screw
1 Opening
2 External ventilation
in the external ventilation
3 Turn the sensor housing in such a way that the external ventilation
points downward.
Mounting is finished.
6 E
35621-EN-090121
xternal ventilation for VEGABAR
4 Sup
plement
4 Supp
lement
4.1 Technical data
General data
Material, mounting boss 316L
Material hose PVC
Thread 1/8"
Torque max. 4 Nm (2.95 lbf ft)
Weight approx. 0.1 kg (0.22 lbs)
Ambient conditions
Ambient, storage and transport temperature
-40 … +80 °C (-40 … +176 °F)
35621-EN-090121
External
ventilation for VEGABAR 7
6,5 mm
(0.26")
4 mm
(0.16")
6 mm
(0.24")
1/8"
25,5 mm
(1")
~ 119 mm (4.69")
4 Suppl
4.2 D
ement
imensions
External ventilation
Fig. 4: External
ventilation
8 E
xternal ventilation for VEGABAR
35621-EN-090121
4 Sup
plement
35621-EN-090121
External
ventilation for VEGABAR 9
4 Suppl
ement
10 E
35621-EN-090121
xternal ventilation for VEGABAR
4 Sup
plement
35621-EN-090121
External
ventilation for VEGABAR 11
VEGA Grieshaber KG
ISO 9001
Am Hohenstein 113
77761 Schiltach
Germany
Phone +49 7836 50-0
Fax +49 7836 50-201
E-mail: info@de.vega.com
www.vega.com
Printing date:
statements concerning scope of delivery, application,
All
practical use and operating conditions of the sensors and
processing systems correspond to the information avail-
able at the time of printing.
© VEGA Grieshaber KG, Schiltach/Germany 2009
Subject to change without prior notice 35621-EN-090121
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