100
8024493/AE00/V1-0/2020-09| SICK
O P E R A T I N G I N S T R U C T I O N S | DUSTHUNTER SP100 Ex-2K
Subject to change without notice
12
MAINTENANCE
7
Place the enclosure rear side of the sender/receiver unit on a flat surface.
8
Loosen and remove the six enclosure screws.
9
Remove the enclosure cover with all attached parts upwards from the enclosure, this is
best done by moving the cover slightly back and forth when pulling it out.
10
Place the cover and enclosure on a flat surface.
11
Loosen the two display screws on the cable connector with a screwdriver. Remove the
cable connector.
12
Position a suitable tool (e.g. small screwdriver) under the O-ring (5337633) and take it
out of the groove. Put the new O-ring into the groove (this O-ring must not be greased).
13
Replace the cable connector and tighten the two screws.
14
Insert the enclosure cover together with all attached parts back into the enclosure,
taking care to align the cover with the measuring gap of the probe.
– The non-return valve and the coupling sleeve are arranged in parallel on the vertical
duct.
– When the DUSTHUNTER SP100 Ex-2K is mounted on a horizontal duct, the non-
return valve then points horizontally to the left (
see “Adapt the sender/receiver unit to
).
15
Fasten the cover to the enclosure by means of the six enclosure screws with a torque of
15 Nm.
16
Transport the sender/receiver unit to the measuring location.
17
Fit the purge gas hose and switch on the purge gas supply.
18
Fit the sender/receiver unit on the duct. Tighten the four flange screws with a torque of
20 Nm.
19
Plug the female connector into the male connector.
20
Slide the coupling sleeve over the receiving bushing and screw on.to stop.
21
Tighten the securing screw of the Ex-Plug-Connector with 3 Nm, the coupling sleeve may
have to be turned back a little bit for this purpose.
22
Put the complete device back into operation (connect potential equalization, switch on
voltage and check measured and status values).
12.6.10
Adjusting the duct geometry
To be done:
As required (
see “Adapt the sender/receiver unit to the duct geome-
)
Ex-condition:
Adjustment must be performed outside the Ex-area.
Work steps:
1
Disconnect the entire device (control unit and sender/receiver unit) from the power
supply. Disconnect the potential equalization line.
2
Unscrew the four flange screws and remove the sender/receiver unit from the duct
(Caution: hot, aggressive and explosive gases may escape; the measuring probe may be
hot) and allow it to cool down if necessary.
3
Switch off the purge gas supply. Remove the purge gas hose.
4
Unscrew screw 5328477 (
see “Device views for sender/receiver unit maintenance”,
, views 1 and 2) until you can unscrew the coupling sleeve by turning it to the left
and remove it downwards.
5
Remove the socket (
see “Device views for sender/receiver unit maintenance”, page 95
view 3) from the connector plug.
6
Move the sender/receiver unit to an Ex-free zone.
7
Place the enclosure rear side of the sender/receiver unit on a flat surface.
8
Loosen and remove the six enclosure screws.
9
Remove the enclosure cover with all attached parts upwards from the enclosure, this is
best done by moving the cover slightly back and forth when pulling it out.
10
Insert the enclosure cover together with all attached parts back into the enclosure,
taking care to align the cover with the measuring gap of the probe.