Technical Data For Natural Gas As Actuator Medium - Siemens SIPART PS2 Operating Instructions Manual

Technical data

13.7 Technical data for natural gas as actuator medium

● For basic device Ex "ic",
"nA", "t"
Test voltage
13.7 Technical data for natural gas as actuator medium
Introduction
Note when using an actuator with natural gas that this can escape at the following points:
● At the exhaust air outlet with sound absorber.
● At the enclosure vent.
● At the control air outlet near the pneumatic connections.
Please refer to the following table for the maximum ventilation values.
Maximum values for escaping natural gas
Ventilation process
Ventilation of the enclosure volume. Purge air
switch is at "IN":
Ventilation via the control air outlet near the pneu‐
matic connections:
290
Basic device without
explosion protection
Galvanic isolation between the basic device and the input for safety shutdown and the
outputs of option modules.
Note
Exhaust air outlet with a sound absorber
The positioner is supplied as standard with a sound absorber. To provide an outlet for the
exhaust air, replace the sound absorber by a G¼ pipe coupling.
Enclosure ventilation and control air outlet
Enclosure ventilation and control air outlet cannot be collected and channeled off.
Basic device with ex‐ Basic device with ex‐
plosion protection plosion protection
Ex d Ex "ia"
DC 840 V, 1 s
Operating
mode
Operation, typi‐
cal
Operation,
max.
Error case,
max.
Operation, typi‐
cal
Operation,
max.
Error case,
max.
Operating Instructions, 02/2016, A5E00127926-AB
Basic device with ex‐
plosion protection Ex
"ic", "nA", "t"
6DR5.1.-.E... 6DR5.2.-.E...
Single-acting Double-acting
[Nl/min] [Nl/min]
0.14 0.14
0.60 0.60
60.0 60.0
1.0 2.0
8.9 9.9
66.2 91.0
SIPART PS2 with PROFIBUS PA