VEGA BARExternalventilation User Manual

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