9
035-00540R-r4
5.2
Mounting the UV LED Head
**WARNING**
Do not block the air intake or the exhaust fans for the UV LED module's cooling
system. Ensure that both intake and exhaust vents located on the LED heads have
at least 5 inches (12cm) of clearance to allow sufficient air flow.
The UV LED Heads incorporate both side mounting and underside mounting features.
Refer to
Figure 3
above.
For single-head applications, either the side or underside mounting features can be used. Never mount the
system using only one row of mounting features or from one side as this may damage the unit.
For applications requiring adjoining UV LED heads, the underside mounting features are the only features that
can be employed. To prevent any unnecessary mechanical compression-loading on the unit, mounting rails
can be constructed from two long L-brackets, facing each other and spaced 75mm apart.
Remember in
adjoining-head applications to remove the end-reflectors from all head-head abutment regions to
maximise head-head optical uniformity.
The end-reflectors on the end-most points of the optical line can
remain in place to further extend uniform operating length and operate as a UV shield for operators.
**CAUTION**
The threaded mounting holes in the AC7- incorporate a blind configuration; ensure
that the appropriate length of mounting hardware is used. Attempting to install
over-length mounting screws could damage the threaded mounting holes and
internal components.
5.3
Adjusting the Side Reflectors
To improve the longitudinal uniformity at the ends of the UV light line, the AC7- series products are equipped
with adjustable end reflectors (see
Figure 1
). These reflectors can be lowered in 10mm increments and can
provide about 15mm of extended useful length when fully extended to 30mm working distance. They may also
be useful in providing additional operator shielding of UV light.
To gain best effect from this mechanical feature, ensure that in the intended installation location the reflectors
will not interfere with conveyed parts or conveyor belt or other mechanical attachments. Failure to do so may
result in damage to ancillary hardware or the UV LED Head itself.
To adjust the reflectors:
1.
Ensure that power to the unit is switched off.
2.
Remove the two screws holding the end reflector in place.
3.
Move the reflector down to the desired position, insert and tighten the two retaining screws.
This operation can be performed on a single head using either the side- or front-mounting scheme.
**CAUTION**
When the end reflectors are detached from the head, the ends of the optical
assembly and LED modules can be physically accessed. Take extreme care not to
allow fingers, tools or other foreign objects or debris to come into contact with
these areas. Doing so may severely damage or impair the function of your AC7-
series UV LED head. The installer should minimise the amount of time or frequency
that these regions of the LED head are left unprotected.
