28 DUSTHUNTER T · Operating Instructions · 8012428 V 2.0 · © SICK MAIHAK GmbH Germany
Product Description
2.2.5 Optional external purge air unit
The control unit with integrated purge air supply cannot be used when internal duct
pressure is greater than +2 hPa. Use the optional external purge air unit in this case. It has
a powerful blower and can be used for excess pressure in the duct up to 30 hPa. The scope
of delivery includes a purge air hose with 40 mm nominal diameter (length 5 m or 10 m).
Figure 15 Optional external purge air unit with adapter
A weatherproof cover is available for use outdoors (
→
p. 119, Fig. 7.2.6).
2.2.6 Installation accessories
Separate parts of the measuring system (order separately) are:
● Purge air hose with 25 mm nominal diameter for purge air supply to the sender/
receiver unit and reflector from the MCU-P control unit
● Purge air hose with 40 mm nominal diameter when using the optional external purge
air unit when the hose included in the scope of delivery is not sufficient
● Adapter 40-25 (
→
p. 28, Fig. 15) to connect the DN40 mm purge air hose when using the
optional external purge air unit
● Connection cable from the MCU to the sender/receiver unit
● For the DUSTHUNTER T100/200 version, the cable to the reflector.
The respective lengths are 5 or 10 m.
purge air hoses can have different lengths.
Weatherproof covers
Weatherproof covers are available for sender/receiver units and reflectors used outdoors
(
→
p. 119, Fig. 94).
Base plate Air filter
Adapter 40-25
To purge air connection
of reflector
Blower
(Standard type 2BH13 )
Purge air hose
To purge air connection of
sender/receiver unit