113
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
TROUBLESHOOTING
13
21
Fit the sender/receiver unit on the duct. Tighten the four flange screws with a torque of
20 Nm.
22
Plug the female connector into the male connector.
23
Slide the coupling sleeve over the receiving bushing and screw on to the stop.
24
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.
25
Put the complete device back into operation (switch on voltage and check measured and
status values).
Fig. 54: Three stud bolts for laser alignment
13.6.2
Checking the laser beam for free passage
The laser beam must pass centrically through the aperture plate, readjust the aperture
plate when this is not the case with a correctly adjusted laser.
Implementation criterion: As required.
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.
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. Disconnect the potential
equalization line.
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
Bring the sender/receiver unit into an Ex-free zone, enable power supply of the sender/
receiver unit.
7
Loosen both screws (SW 7) of the cover and remove the cover.