Siemens SITRANS LG270 Operating Instructions Manual page 69

Additional output parameter - Electronics temperature
Range
Resolution
Deviation
Output of the temperature values
Ʋ Indication
Ʋ Output
Voltage supply
Operating voltage U
B
Operating voltage U
B
switched on
Reverse voltage protection
Permissible residual ripple
Ʋ for 9.6 V < U < 14 V
B
Ʋ for 18 V < U < 36 V
B
Load resistor
Ʋ Calculation
Ʋ Example - with U = 24 V DC
B
Potential connections and electrical separating measures in the instrument
Electronics
Reference voltage
9)
Conductive connection
Electrical protective measures
Housing material
Plastic
Aluminium
Stainless steel (electro-pol-
ished)
Stainless steel (precision
casting)
Galvanic separation between electronics and metal housing parts
9)
PBD-51041507
-40 ... +85 °C (-40 ... +185 °F)
< 0.1 K
±3 K
Via the display and adjustment module
Via the respective output signal
9.6 ... 35 V DC
with lighting 16 ... 35 V DC
Integrated
≤ 0.7 V
≤ 1 V
(U
(24 V - 9.6 V)/0.022 A = 655 Ω
Not non-floating
500 V AC
Between ground terminal and metallic process fitting
Version
Single chamber
Double chamber
Single chamber
Double chamber
Single chamber
Single chamber
Double chamber
SITRANS LG270 - Operating Instructions
(16 ... 400 Hz)
eff
(16 ... 400 Hz)
eff
- U )/0.022 A
B min
Protection acc. to
IEC 60529
IP66/IP67
IP66/IP67
IP66/IP68 (0.2 bar)
IP66/IP68 (1 bar)
IP66/IP68 (0.2 bar)
IP66/IP68 (1 bar)
IP66/IP68 (0.2 bar)
IP66/IP68 (0.2 bar)
IP66/IP68 (1 bar)
IP66/IP68 (0.2 bar)
IP66/IP68 (1 bar)
Protection acc. to NEMA
Type 4X
Type 4X
Type 6P
-
Type 6P
-
Type 6P
Type 6P
-
Type 6P
-
69