Vega VEGAPULS SR 68 4 … 20 mA_HART - four-wire Bedienungsanleitung PDF herunterladen (Seite 65)

11 Supplement

VEGAPULS SR 68 • 4 … 20 mA/HART - four-wire

38295-EN-130624

11 Supplement

11.1 Technical data

General data

316L corresponds to 1.4404 or 1.4435

Materials, wetted parts

Ʋ Process tting 316L

Ʋ Process seal On site (instruments with thread: Klingersil C-4400 is

attached)

Ʋ Antenna 316L, 316L electropolished, 316L Safecoat-coated

Ʋ Antenna impedance cone PTFE TFM 1600 oder PTFE INOFLON M290, PEEK

Ʋ seal, antenna system FKM (SHS FPM 70C3 GLT), FFKM (Kalrez 6375), FFKM

(Kalrez 2035), FFKM (Kalrez 6230 - FDA)

Materials, non-wetted parts

Ʋ Plastic housing plastic PBT (Polyester)

Ʋ Aluminium die-casting housing Aluminium die-casting AlSi10Mg, powder-coated - basis:

Polyester

Ʋ Stainless steel housing 316L

Ʋ Seal between housing and housing

cover

NBR (stainless steel housing, precision casting), silicone

(aluminium/plastic housing; stainless steel housng,

electropolished)

Ʋ Inspection window in housing cover

(optional)

Polycarbonate

Ʋ Ground terminal 316L

Ohmic contact Between ground terminal, process tting and antenna

Process ttings

Ʋ Pipe thread, cylindrical (ISO 228 T1) G1½ A according to DIN 3852-A

Ʋ American pipe thread, tapered 1½ NPT, 2 NPT

Ʋ Flanges DIN from DN 25, ANSI from 1"

Weights

Ʋ Instrument (depending on housing,

process tting and antenna)

approx. 2 … 17.2 kg (4.409 … 37.92 lbs)

Ʋ Antenna extension 1.6 kg/m (1.157 lbs/ft)

Length antenna extension max. 5.85 m (19.19 ft)

Torque for NPT cable glands and Conduit tubes

Ʋ Plastic housing max. 10 Nm (7.376 lbf ft)

Ʋ Aluminium/Stainless steel housing max. 50 Nm (36.88 lbf ft)

Input variable

Measured variable The measured quantity is the distance between process

tting of the sensor and product surface. The reference

plane is the seal surface on the hexagon or the lower

side of the ange.

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