Vega VEGABAR 51 4 … 20 mA_HART Bedienungsanleitung PDF herunterladen (Seite 14)

4 Mounting

VEGABAR 51 • 4 … 20 mA/HART

36713-EN-130321

Instrumentsintheversion"Oil and grease free for oxygen"should

be unpacked just before mounting. After the protective cover of the

processttinghasbeenremoved,thelabel"O

"ontheprocesstting

is visible.

Danger:

Avoidoil,greaseorcontamination.Explosiondanger!

4.2 Mounting steps

FormountingVEGABAR51,aweldedsocketisrequired.Youcannd

thesecomponentsinthesupplementaryinstructionsmanual"Welded

socket and seals".

Sealthethreadwithresistantsealmaterialontheprocesstting

thread 1½ NPT.

→

Screw VEGABAR 51 into the welded socket. Tighten the hexagon

ontheprocessttingwithasuitablewrench.Wrenchsize,see

chapter"Dimensions".

Warning:

Thehousingmustnotbeusedtoscrewtheinstrumentin!Applying

tightening force can damage internal parts of the housing.

SealtheangeconnectionsaccordingtoDIN/ANSIwithasuitable,

resistant seal and mount VEGABAR 51 with suitable screws.

Usethesealsuitablefortherespectiveprocesstting.Youcannd

thecomponentsinthesupplementaryinstructionsmanual"Welded

socket and seals".

4.3 Mounting steps, tube chemical seal

accordingtoDIN11851

The isolating systems are temperature and pressure-aged at 80 °C

and18bar.Thezeropointisadjustedat22°C±2°Candatorque

of275Nm.Thedenedinstallationpositionis:Tubechemicalseal

horizontal,VEGABAR51vertical.

For mounting proceed as follows:

1. Position VEGABAR 51 with tube chemical seal

2. Tightenthethreadedttingsstep-by-steponceontherightand

on the left

3. HoldVEGABAR51,toavoiddistortionfromthedenedinstalla-

tion position.

Caution:

Apart from mounting, the tube chemical seal must not be permanently

under torsion.

4. Check current after mounting. The current must be between 3.9

and4.1mA.Incaseofadeviatingvalue,losenthreadedtting

and mount again.

Oxygen applications

Welding the socket

Sealing/Screwing in

threaded versions

Sealing/Screwing in

angeversions

Sealing/Screwing in

hygienicttings

1 2 ... 9 10 11 12 13 14 15 16 17 18 19 ... 75 76

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Vega VEGABAR 51 4 … 20 mA_HART Bedienungsanleitung Seite 14

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