5 | Installation
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0870203597_NC0100-0300B_WCV_Ex_-0001_IM_en
5.9.6 Wiring Diagram Level Switch
Part no.:
0652 556 531
Supplier reference:
Endress&Hauser FTL50/FEL58
Maintenance procedure:
Connector:
M12x1, 4-pin
P&ID position:
LS-/0201 & LS-/0202
1
2
4
3
4
1
L
1 = Brown ; 4 = Black
Electrical data:
U
i
= 16 VDC ; I
i
= 52 mA ; P
i
= 0.17 W ; C
i
= 0 nF ; L
i
= 0 mH
Switching element function:
NAMUR
Contact:
Normally closed
Switch point:
L
warning
= LS-/0201
►
pin 1 + 4
►
low level “warning”
L
trip
= LS-/0202
►
pin 1 + 4
►
low level “stop flushing”
5.9.7 Wiring Diagram Pressure Switch (With Gas Lubricated
Double Mechanical Seals Only)
Part no.:
0653 518 304
Supplier reference:
Trafag AG
PST4B 9B4 (0…6 bar)
Maintenance procedure:
P&ID position:
PS-/0302
Electrical data:
U = 30 V ; I = 0.1 A
Contact:
Normally open
2
3
P
PE
1
3
2
1
Switch point:
P
trip
(PS-/0302) = 2.5 bar (relative)
►
min. admissible pressure
5.10 Electrical Connection of the Flame Arrester
Bypass (Optional)
5.10.1 Wiring Diagram Limit Switch
Part no.:
No Busch ref. (integrated into the
pneumatic actuator)
Supplier reference:
Fuchs NJ2-V3-N
P&ID position:
GS/0601 “bypass closed”
GS/0602 “bypass open”
Electrical data:
U = 8 V ; I = 1 … 3 mA
Switching element function:
NAMUR, bistable
2 (-)
1 (+)
1 = Brown ; 2 = Blue
Summary of Contents for COBRA ATEX NC 0100-0300 B
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