Siemens SITRANS P - 7.4 Locking the device

Explosion protection in accordance with
ATEX
HART PROFIBUS PA
Designation II 1/2 G Ex ia/ib IIC T4/T6 Ga/Gb
II 2G Ex ib IIC T4/T6 Gb
II 1/2G Ex ia IIC T4/T6 Ga/Gb
II 2G Ex ib IIC T4/T6 Gb
II 3G Ex ic IIC T4/T6 Gc
Permissible ambient temper‐
ature
-40 … +80 °C (-40 … +176 °F) Temper‐
ature class T4
-40 … +55 °C (-40 … +158 °F) Temper‐
ature class T6
-40 … +75 °C (-40 … +167 °F) tempera‐
ture class T4
-40 … +50 °C (-40 … +122 °F) tempera‐
ture class T6
Permissible temperature of
medium
-40 … +100 °C (-40 … +212 °F) temperature class T4
-40 … +70 °C (-40 … +158 °F) temperature class T6
Connection To a certi󹪝ed intrinsically safe circuit
with the max. values:
U
i
= 30 V, I
i
= 101 mA, P
i
= 760 mW
U
i
= 29 V, I
i
= 110 mA, P
i
= 800 mW
FISCO
• ia/ib:
Ui = 17.5 V, Ii = 380 mA, Pi = 5.32 W
• ic:
Ui = 17.5 V, Ii = 570 mA
Linear barrier
• ia/ib:
Ui = 24 V, Ii = 174 mA, Pi = 1.0 W
• ic:
Ui = 32 V, Ii = 132 mA, Pi = 1.0 W
E󹪜ective inner capacitance C
i
= 3.29 nF C
i
= 1.1 nF
E󹪜ective inner inductance Li = 0.24 µH Li = 4.8 µH
• Flameproof enclosure encapsulation "d"
Designation II 1/2G Ex ia/db IIC T4/T6 Ga/Gb
II 2G Ex db ia IIC T4/T6 Gb
Permissible ambient temper‐
ature
-40 … +80 °C (-40 … +176 °F) temperature class T4
-40 … +70 °C (-40 … +158 °F) temperature class T6
Permissible temperature of
medium
-40 … +100 °C (-40 … +212 °F) temperature class T4
-40 … +70 °C (-40 … +158 °F) temperature class T6
Connection To a circuit with the operating values:
U
H
= 10.5 … 45 V DC, 4 ... 20 mA
To a circuit with the operating values:
U
H
= 10.5 ... 24 V DC
• Dust explosion protection for zones 21, 22
Designation II 2D Ex tb IIIC T120 °C Db
II 3D Ex tc IIIC T120 °C Dc
Permissible ambient temper‐
ature
-40 ... +80 °C (-40 ... +176 °F)
Permissible temperature of
medium
-40 … +100 °C (-40 … +212 °F)
Max. surface temperature 120°C (248°F)
Connection To a circuit with the operating values:
U
H
= 10.5 … 45 V DC, 4 ... 20 mA
To a circuit with the operating values:
U
H
= 10.5 ... 24 V DC
• Dust explosion protection for Zone 20
Technical data
8.7 Certi󹪝cates and approvals
SITRANS P320/P420
82 Compact Operating Instructions, 01/2021, A5E38874562-AC