Siemens SIPROCESS GA700 - Page 112

Purging unit consisting of: FS870S with SVP2
SR852
SR853
pressure regulator
Pneumatic data
Inlet pressure 2.5…10bar
Min. 3 l/s at the connection point
Pressure measuring range 5...200mbar
Flow measuring range 0.01...1.5 l/s
Enclosure
Degree of protection IP65
Dimensions 340 mm x 350 mm x 110 mm
Explosion protection
ATEX Device group II 2G / II 2D
FS870S: Ex type of protection II 2 G Ex e db mb ib [pxb] IIC T4 Gb
II 2 D Ex tb IIIC T100°C [ib] [pxb] Db
ATEX: BVS 10 ATEX E 112
IECEx: IECEx BVS 10.0095
SR852: Ex type of protection II 2 G Ex eb mb IIC T4 Gb
II 2 D Ex tb IIIC T130°C Db
ATEX: BVS 17 ATEX E 016X
IECEx: IECEx BVS 17.0006X
SR853: Ex type of protection II 2 G Ex eb qb IIC T4
II 2 D Ex tb IIIC T108°C
ATEX: TÜV 02 ATEX 1824
IECEx: IECEx TUN 14.0029
Installation Within Ex area Zone 1/21
Parameters FS870S
Menu Parameter Setting/Value
Structure Language English
 Valve SVP2
 Operation Continuous purging
 Signaling contact Bypass
 NO contact/NC contact NO contact
 Ext. alarm mode Inactive
 ES872 No
Parameter Purge volume 10 x 60 l = 600 l
 Nominal pressure purging 50 mbar
 Min. 󹪞ow rate purging 1.0 ls
 Setpoint 󹪞ow rate purging 1.2 l/s
 Setpoint pressure operation 20 mbar
Ex px safety equipment
B.1Overview
SIPROCESS GA700 rack and wall mounted devices
112 Compact Operating Instructions, 06/2023, A5E35134047-AB