Supplement; Technical Data - Siemens SITRANS LG270 Operating Instructions Manual

11 Supplement

11.1 Technical data

General data
Material 316L corresponds to 1.4404 or 1.4435
Materials, wetted parts
Ʋ Process fitting - coax version
Ʋ Tube: ø 21.3 mm (0.839 in)
Ʋ Process seal on the instrument side
(rod leadthrough)
Ʋ Process seal
Materials, non-wetted parts
Ʋ Plastic housing
Ʋ Aluminium die-cast housing
Ʋ Stainless steel housing (precision
casting)
Ʋ Stainless steel housing (electropol-
ished)
Ʋ Second Line of Defense
Ʋ Seal between housing and housing lid Silicone SI 850 R
Ʋ Inspection window in housing cover
(optional)
Ʋ Ground terminal
Ʋ Cable gland
Ʋ Sealing, cable gland
Ʋ Blind plug, cable gland
Second Line of Defense
Ʋ The Second Line of Defense (SLOD)
is a second level of the process
separation in the form of a gas-tight
feedthrough in the lower part of the
housing, preventing product from
penetrating into the housing.
Ʋ Supporting material
Ʋ Glass potting
Ʋ Contacts
Ʋ Helium leak rate
Ʋ Pressure resistance
Process fittings
Ʋ Pipe thread, cylindrical (ISO 228 T1)
60
316L and PEEK GF30, Alloy C22 (2.4602) and PEEK
GF30, 904L (1.4539)
316L or Alloy C22 (2.4602)
FFKM (Kalrez 6375)
On site (instruments with thread: Klingersil C-4400 is
enclosed)
Plastic PBT (Polyester)
Aluminium die-casting AlSi10Mg, powder-coated (Basis:
Polyester)
316L
316L
Borosilicate glass GPC 540
Plastic housing: Polycarbonate
Metal housing: Glass
316L
PA, stainless steel, brass
NBR
PA
316L
Borosilicate glass GPC 540
Alloy C22 (2.4602)
< 10 mbar l/s
-6
See process pressure of the sensor
G¾, G1, G1½ (DIN 3852-A)
SITRANS LG270 - Operating Instructions PBD-51041507