Siemens SIPROCESS GA700 - [2.04] Settings > Limits

Ex px safety equipment
B
B.1 Overview
Example of Exp safety equipment
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① Ex interface relay SR852 ② Electrical connections I/O wall-mounted device
③ Purging gas inlet, Swagelok, 12mm (0.47″) (outer di‐
ameter)
④ Pressure regulating valve for purging gas with pressure
gauge, G 1/4", primary pressure max. 10bar
⑤ SVP2, proportional rinsing liquid valve, 2mm, 24VDC ⑥ Purging gas outlet to the wall-mounted device, Swagelok or
compatible, 12mm (0.47″) (outer diameter)
⑦ Purge gas return from wall-mounted device, Swagelok
or compatible or compatible,
12mm (0.47″) (outer diameter)
⑧ Ex p controller F870S
SIPROCESS GA700 rack and wall mounted devices
Compact Operating Instructions, 06/2023, A5E35134047-AB 107