ALS DTS-UESIGHT Manual
Airfield Lighting Systems UK Limited
Aviation House, Russel Gardens, Wickford, Essex, SS11 8BF
Tel +44 1702 547562 Fax +44 1702 533962 Web www.alsukltd.co.uk Email sale[email protected].uk
DTS Uni-Directional Elevated Lights
Sighting Device
Part Code DTS-UESIGHT
Operation & Maintenance Manual
Document Number: MAN010 – REV C
Contents
Airfield Lighting Systems UK Limited
Aviation House, Russel Gardens, Wickford, Essex, SS11 8BF
Tel +44 1702 547562 Fax +44 1702 533962 Web www.alsukltd.co.uk Email sale[email protected].uk
1.0 History of Change
2.0 Warranty / Calibration
3.0 Contents
4.0 Installation
5.0 Spares Listing
1.0 History of Change
Page Revision
Description
Checked
Approved
Date
All A Manual Released AK DJ 06/04/2021
All B Updated TLS AK 18/10/2021
All C Uni-directional changes DJ AK 21/10/21
2.0 WARRANTY
Airfield Lighting Systems UK LTD, (ALS), guarantee their sighting devices for a period of two
years against faulty components.
ALS products are constructed using high performance materials. The use of replacement parts or
other materials not obtained from or approved by the company, may lead to impaired performance
or reduced service life. The warranty given by Airfield Lighting Systems will be invalidated if non-
approved replacement parts are used.
The device should be returned to ALS for alignment calibration every 2 years or sooner if any
damage has occurred or the unit has been dropped.
The satisfactory operation of the device depends upon the observance of the recommended setup
and storage instructions given in this manual. Failure to do so will invalidate this warranty.
Airfield Lighting Systems UK Limited
Aviation House, Russel Gardens, Wickford, Essex, SS11 8BF
Tel +44 1702 547562 Fax +44 1702 533962 Web www.alsukltd.co.uk Email sale[email protected].uk
3.0 CONTENTS
Please carefully read and observe all safety related warnings throughout this manual. Failure to
do so could result in damage to the device / light fitting and serious injury if the Airfield light is
incorrectly installed.
Please observe all local site and regional safety requirements before commencing work on any
Airfield. Installation and operation of the sighting device must only be carried out by qualified and
competent persons.
The Sighting Device consists of a circular mounting bracket and positioning studs, hand-tightening
screws, a telescopic sight (marked with angles for field vision), a gauge to see the angle of
adjustment and spirit level bubble to confirm the correct angle is set.
(Fig 1)
Telescopic sighting device
and spirit level bubble
Tightening screws to firmly
secure bracket
Mounting bracket to attach
to front of light fitting
Airfield Lighting Systems UK Limited
Aviation House, Russel Gardens, Wickford, Essex, SS11 8BF
Tel +44 1702 547562 Fax +44 1702 533962 Web www.alsukltd.co.uk Email sale[email protected].uk
4.0 INSTALLATION
First remove all the items from the box and check all the components are present as shown in
Figure 1.
The light fitting is set at 2.50 in the factory, but this should be checked on site. There is no
need to adjust the fixing screws on the neck of the fitting pole until after using the sighting
device is fitted. (Fig 2)
a) Commence mounting the bracket to the light fitting (Fig 3)
(Fig 2) DTS fitting (Fig 3) align the brackets concaved area to this screw
b) The sighting device first attaches to the front of the light fitting, place the top of the bracket
over the screw for correct placement (Fig 3) then position the bracket flat to the front of the
fitting. Hold the bracket securely so it does not fall off until both tightening screws are fully
tightened on both sides.
Airfield Lighting Systems UK Limited
Aviation House, Russel Gardens, Wickford, Essex, SS11 8BF
Tel +44 1702 547562 Fax +44 1702 533962 Web www.alsukltd.co.uk Email sale[email protected].uk
c) Once the bracket is correctly placed over the front rim of the light fitting, twist the screws
clockwise over the front rim to secure the sighting device on to the light fitting.
4.1 SETTING THE SIGHTING DEVICE
a) The DTS light fitting is Uni-directional and must be set up precisely. After its installation on the
Airfield, please adjust the angle of azimuth and sight to complete installation prior to any
operation by Aircraft.
b) When the sighting device is fully secured on the light it is ready to be adjusted.
c) The sighting device can be used in four directions (Front/Rear/Left/Right) for alignment with
other fittings on the Runway or sighting reference. The telescopic sight rotates 90 degrees at
a time on the top of the DTS fitting to allow setting.
d) Good practice is to take another fitting in the same direction of the light and use this as a target
to aim the sighting device at.
e) Check to determine the angle required to local regulations i.e. ICAO, EASA, CAP168 etc
f) The sighting device can be adjusted to a positive or negative toe-in of 1.50, 20,30, 3.50,40,4.50
or 50 by looking into the telescope
(Fig 4)
Airfield Lighting Systems UK Limited
Aviation House, Russel Gardens, Wickford, Essex, SS11 8BF
Tel +44 1702 547562 Fax +44 1702 533962 Web www.alsukltd.co.uk Email sale[email protected].uk
g) To adjust the angle required, slide the spirit level assembly forwards or backwards to align the
marker at the top with the required angle visible through the window on the sighting device.
h) Check the spirit level bubble on the top of the sighting device, if it is level then no adjustment
is required and the fitting is ready to be used.
i) To change the angle, adjust the locking screws on the base of the unit until the spirit level
bubble is in position and then re-tighten them. Adjust each screw separately and in turn i.e. do
not tighten one fully first then the next one, adjust them all equally so as to not move the final
setting.
Airfield Lighting Systems UK Limited
Aviation House, Russel Gardens, Wickford, Essex, SS11 8BF
Tel +44 1702 547562 Fax +44 1702 533962 Web www.alsukltd.co.uk Email sale[email protected].uk
4.2 STORAGE OF THE DEVICE
a) Once the sight has been removed please return to the protective bag and box for security to
store the device before use again.
b) The sighting device should be stored indoors at room temperature.
5.0 SPARES
All individual items shown in Fig 1 are available as serviceable parts and can be ordered from
ALS.
This includes the screws and mounting bracket. The telescope and mount are one complete
piece.
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