SICK GM32 Ex Operating Instructions Manual page 39

8015558/1O6S/V1-9/2024-08 | SICK
Subject to change without notice
Unsafe measuring operation
CAUTION
Risk of unsafe measuring operation through loss of degree of protection IP64
Ineffective seals of the connection unit and insufficient closed openings for unused line
inlets can lead to loss of degree of protection IP64. Penetration by dust or moisture can
lead to unsafe operation of the FS850S.
Close off unused openings for line inlets with impact resistant sealing plugs that
►
have been checked against self-loosening and turning.
Check the seals on the Ex-e enclosure for damage and replace as necessary.
►
Tighten the terminals, especially in the Ex-e area.
►
Check the terminals for discoloration. This could indicate increased temperatures.
►
Check the gland screw fittings, sealing plugs and flanges for leak tightness and
►
tight seat.
Terminal assignment
3
Figure 18: Connecting the Ex overpressure control
Connection, Ex p valve
1
Status signal output
2
N on terminal 15
•
3
• L1 on terminal 17
• PE
Table 6: Terminals with higher safety in the FS850S
Tightening torque
Min. 0.3 Nm
Max. 0.4 Nm
Always maintain the limit values on the respective terminals. Refer to the Technical
Data or the Test Certificate for the limit values. The fitted valve safeguard must corre‐
spond to the specified safeguard value of the purge medium valve used.
NOTE
Further information on the pressurized enclosure system,
system settings", page 91
ELECTRICAL INSTALLATION
1
2
Wire cross-section rigid / flexible
Min. 0.3 mm
Max. 2.5 mm
and FS8505 Operating Instructions.
O P E R A T I N G I N S T R U C T I O N S | GM32 Ex
2
2
see "Pressurized enclosure
6
39