Translation of the original instructions
1
Identification EX
Type
Identification ATEX
Certificates
II 1G Ex ia IIC T6…T1 Ga
SRBG-C1-N-20N-ZC-M12-EX5
II 1D Ex ia IIIC T135°C Da
SRBG-C1-N-20N-ZC-C2-C2-EX5
II 1G Ex ia IIC T6…T1 Ga
TÜV 16 ATEX 174269X
Tab. 1
Type
Identification IECEx
Certificates
Ex ia IIC T6…T1 Ga
SRBG-C1-N-20N-ZC-M12-EX5
Ex ia IIIC T135°C Da
SRBG-C1-N-20N-ZC-C2-C2-EX5
Ex ia IIC T6…T1 Ga
IECEx TUN 18.0003X
Tab. 2
2
Further applicable documents
User documentation
Sensorbox, SRBG
Instructions Operating
Tab. 3
All available documents for the product
è
www.festo.com/pk.
3
Safety
3.1
Safety instructions
–
The sensor box SRBG-C1-N-20N-ZC-M12-EX5 can be used in zone 0 of poten-
tially explosive gas atmospheres and in zone 20 of potentially explosive dust
atmospheres.
–
The sensor box SRBG-C1-N-20N-ZC-C2-C2-EX5 can be used in zone 0 of poten-
tially explosive gas atmospheres.
–
Carry out all work outside potentially explosive areas.
3.2
Intended use
Inductive dual sensors are intended for recording and display of the position of
process valves.
3.3
Identification X: Special conditions
–
Ambient temperature
è
–
Refer to the relevant certificate to see the relationship between the connected
circuit type, the maximum permitted ambient temperature, the effective inner
reactances, and if applicable the surface temperature or the temperature
class.
–
Protect the device from impact effects if it is used in the temperature range
between the minimum permissible ambient temperature and
-
20 °C.
–
Avoid electrostatic charges which could result in electrostatic discharges
while installing, operating, or maintaining the device.
–
Avoid in admissibly high electrostatic charge of the metal housing compon-
ents on the device. Include the metal housing components in the equipoten-
tial bonding.
–
Protect cables and cable glands from tensile load and torsional stress or use
certified cable glands.
–
The sensor circuits for SRBG-C1-N-20N-ZC-M12-EX5 have to be considered
galvanically connected to each other, in safety technical point of view for
Group III. Verification of intrinsic safety must include the possibility of the
interconnection of these intrinsically safe circuits. The functional galvanically
separation remains unaffected.
–
Mount the device with at least a degree of protection of IP20 according to
IEC/EN 60529.
–
Mount the device in such a way that the bare casting resin surface is not
exposed to mechanical hazards.
4
Installation
NOTICE!
During commissioning, maintenance and installation of the sensor, make sure
that the regulations in accordance with EN 60079-14 and EN 60079-25 are com-
plied with.
NOTICE!
Installation and commissioning may only be performed in accordance with the
operating instructions and by qualified personnel.
WARNING!
The discharge of electrostatically charged parts can lead to sparks which can
cause an explosion. Prevent electrostatic discharges by means of suitable install-
ation and cleaning measures.
5
Electrical connection
NOTICE!
Electrical specifications and operating conditions in accordance with the product
label.
Connection is dependent on the sensor box.
–
SRBG-C1-N-20N-ZC-C2-C2-EX5: Terminal box with spring-loaded terminal
–
SRBG-C1-N-20N-ZC-M12-EX5: M12x1 plug connector
WARNING!
Avoid ignition of explosive atmosphere.
For SRBG-C1-N-20N-ZC-C2-C2-EX5:
•
Tighten cover firmly.
–
Tightening torque: 1 Nm
SRBG-C1-N-20N-ZC-C2-C2-EX5
Fig. 1
NOTICE!
If the polarity of the solenoid valve circuit connections are reversed, the valve
status indicator will not function. Low energy valves can thus be connected.
SRBG-C1-N-20N-ZC-M12-EX5
Fig. 2
6
Operation
If the equipment is not used under atmospheric conditions, a reduction of the per-
missible minimum ignition energy must be taken into consideration.
NOTICE!
The intrinsic safety is only assured in connection with corresponding equipment
and according to the proof of intrinsic safety.
–
Cable connectors and blanking plugs must be approved for use in explosion
protection areas.
8079486
SRBG-C1-N-20N-ZC-…-EX5
Sensorbox
8079486
2017-10a
[8079488]
Operating conditions | EX
Festo AG & Co. KG
Ruiter Straße 82
73734 Esslingen
Germany
+49 711 347-0
www.festo.com
