INSTALLATION / MAINTENANCE INSTRUCTIONS
Figure 1. Typical DU3 installation site
Figure 2.
DU3 detector unit
DU3
Ultrasonic Vehicle Detector
The DU3 is a vehicle detector unit with self-
contained electronics, designed for use with a
drive-thru timer system. It should be installed at
the service window, not at the menu board or
speaker post.
Installation of the DU3 requires only one hole to
be drilled through the wall for cable routing, and
four screw holes for mounting the detector unit
on the outside wall of the building, near the
drive-thru service window. Its cables will be
routed to the AC adapter and the timer system
control unit.
Installation of the DU3 should take approximately
one hour. Follow these instructions.
Parts List
The following parts are included with the DU3. As the items are
unpacked, check them against the packing slip. If any item is
missing or damaged, contact your HME sales representative.
!
!
Detector unit with 12 ft. (3.66 meter) cables
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AC adapter
!
Mounting hardware
Tools Required
Be certain you have the items listed below before beginning
the DU3 installation.
!
!
Tape measure
!
Phillips (cross point) and standard (slotted) screwdrivers
!
Electric drill with ½ inch (13mm) and ¼ inch (6mm) bits to
drill the mounting surface (wood, cinder block or metal)
where detector unit will be installed
!
Electrical tape or shrink tubing
HM ELECTRONICS, INC.
14110 Stowe Drive, Poway, CA 92064 USA
!
Phone: 1-800-848-4468 Fax: (858) 552-0172
HME# 400251
Rev B 11/13/02
