VEGA VEGAPULS SR 68 4 … 20 mA_HART - four-wire - Manual (Page 65)

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 fitting 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 fitting and antenna
Process fittings
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 fitting 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
fitting of the sensor and product surface. The reference
plane is the seal surface on the hexagon or the lower
side of the flange.