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8024250/18HT/V2-0/2020-12| SICK
O P E R A T I N G I N S T R U C T I O N S | ZIRKOR200 Ex-G
Subject to change without notice
5
INSTALLATION
Fig. 12: Aligning the V-shield
5.9.7
Laying the connection cable
▸
Lay cables – ensure no electrostatic charge is generated.
▸
Connect to analyzer electronics.
▸
Connect control unit.
Max. 1 U
1
2
3
4
5
5
I.
II.
1
Flow direction
2
V-shield
3
Filter head
4
Hexagon socket screw
5
Jaw wrench
WARNING: Danger of explosion through electrostatic charges
Static charges on the cables can cause an explosion.
▸
Protect cables against electrostatic charges.
▸
Lay cables in the Ex-area firmly, for example by using cable trays.
NOTICE:
●
The system is not equipped with a power switch. A disconnecting device (e.g. a circuit
breaker) must be installed in the power supply cable. The disconnecting device must
comply with local safety standards, be easily accessible, located in the immediate
vicinity of the system and clearly marked as the disconnecting device of the system
(on/off switch).
●
All other cables must be suitable for the ambient temperature onsite and must have
the relevant cross-section.
●
The connection terminals of the control unit are suitable for conductor cross-sections
from 0.08 mm² (AWG 28) to 2.5 mm² (AWG 12). Reduce the suitable cross-sections
by one size unit when using ferrules.
WARNING: Danger of explosion
●
Disconnect the system from the power supply before opening the control unit or the
analyzer electronics. Wait at least 5 seconds before opening.
●
Prior to opening the control unit or the analyzer electronics, unlock the cover with the
threaded pin and locked again after closing.
●
After working on or replacing the Exd screw fittings or the Exd cables, ensure that
they are screwed in completely and sealed off according to the Instructions. This is
required to reach a type compliant state. Do not connect the power supply before all
enclosures are securely closed, unless it is guaranteed that the environment is not
explosive.