Siemens SITRANS LG240 Operating Instructions Manual page 70

Ʋ Example - with U
B
Potential connections and electrical separating measures in the instrument
Electronics
Reference voltage
9)
Conductive connection
Electrical protective measures
Protection rating
Housing material
Plastic
Aluminium
Stainless steel, electro-
polished
Stainless steel, precision
casting
Connection of the feeding power supply
unit
Altitude above sea level
Ʋ by default
Ʋ with connected overvoltage protection up to 5000 m (16404 ft)
Pollution degree
10)
Protection class
Galvanic separation between electronics and metal housing parts
9)
When used with fulfilled housing protection
10)
IEC 61010-1
11)
70
= 24 V DC
Version
Single chamber
Double chamber
Single chamber
Double chamber
Single chamber
Single chamber
Double chamber
SITRANS LG240 - Operating Instructions
(24 V - 9.6 V)/0.022 A = 655 Ω
Not non-floating
500 V AC
Between ground terminal and metallic process fitting
Protection acc. to
IEC 60529
IP66/IP67
IP66/IP67
IP66/IP68 (0.2 bar)
IP66/IP67
IP66/IP68 (0.2 bar)
IP66/IP68 (0.2 bar)
IP66/IP68 (0.2 bar)
IP66/IP67
IP66/IP68 (0.2 bar)
Networks of overvoltage category III
up to 2000 m (6562 ft)
4
III
11)
Protection acc. to NEMA
Type 4X
Type 4X
Type 6P
Type 4X
Type 6P
Type 6P
Type 6P
Type 4X
Type 6P
PBD-51041037