Haglof DME User manual

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Version 1.3 English
1. DME instrument
2. Transponder T3
3. 360° adapter
4. Plot center staff/Monopod
1. DME
2. Transponder
3. 360°
°°
° adapter
4. Monopod

DME manual ENU rev. March 2011
©Haglöf Sweden AB
Welcome as an operator of a professional Haglöf Sweden® measuring solution! Our instruments are
always developed in close collaboration with forest pro’s from every corner of the world, and we sincerely
hope you will be pleased with your new precision instrument. The DME is a useful tool in forest cruising
work, and especially when working in sample plots. The ultra sound technology in the DME works also in
dense forests and for distances up to 30 m/yds and more.
Before starting to use the DME
The DME uses ultrasonic impulses to determine a distance. The speed for the ultrasonic signals to tra el in the
air depends on factors such as air humidity, air pressure and abo e all, the air temperature. The DME has a
built-in temperature sensor that automatically will compensate di ergences and gi e correct distance measures
e en if temperature changes. At deli ery, the instrument has a basic setting installed that normally gi es the
measuring fault under 1%. To obtain optimal measuring result accuracy, the instrument should be checked and
calibrated on a regular basis.
Functions in the DME easuring instru ent
Number/Pressures Function Other Display Features
[ F1 ]
Distance measuring [
- - - - ] The DME is operating.
[ F2 ]
The DME can be used based on a selected
Prism Factor. See F4 for prism factor
selection. Minimum tree diameter
Based on a distance and prism factor will
be displayed.
[ F3 ]
Measuring unit is reset to transponder
function
[ trP ] Measuring unit set as transponder.
[ F4 ]
Select prism factor to be used when
calculating the minimum diameter, see
[F2] English = 5, 10, 15 and 20 --
Metric = 0.5, 1.0, 2.0 and 3,0,
Make selection by pressing the
red button.
[ F5 ]
Change measuring unit, Meter or feet
[ F6 ]
No function, Space reser ed
[ F7 ]
Temperature
[ F8 ]
No function, Space reser ed
[ F9 ]
Calibration
To switch between transponder TYPE 1 or TYPE 2.
1. Remo e the battery.
2. Pressure and hold down the button and insert the battery in position.
3. Change transponder type. [tYP1] or [tYP2].
Transponder T3
The transponder is an ultrasonic transmitter and recei er that communicates
with the DME. T3 can be used for direct measuring (pinned to a tree stem) and
for plot work in a full 360-degree circle, with the adapter and monopod.
The transponder T3 has an audible beep signal that determines if it is acti ated.
The DME instrument works as a remote control, where the T3 and the signal
are turned off and on with the measuring unit.
The transponder uses only one AA cell battery placed under the lid.
To measure in a 360 degree circle, use the adapter and monopod. The adapter is screwed on
the monopod staff
Ultrasonic loud speaker
Ultrasonic microphone
Battery lid
Battery compartment.
Plus pole without spring

DME manual ENU rev. March 2011
©Haglöf Sweden AB
DME package: DME, T3, adapter and
Monopod staff extending to up to
140cm. Batteries not included at
deli ery. Plastic safety case dimensions:
37 x 30,5 x 9,5cm.
How to use the Transponder T3
Start the transponder
To start the transponder, hold the loudspeaker of the DME
measuring unit towards the transponder. Press the red button
on the DME until 2 short beep signals are heard from the
transponder.
Turn off transponder
To turn off the T3, hold the loudspeaker towards the transponder. Press the red button until 4 short beep
signals are heard.
Turn off and on the beep signal
To turn off and on the beep signal of the T3, hold the DME loudspeaker towards the transponder. Press the red
button until the signal stops or starts. This will take approximately 10-15 seconds.
Calibration
1. Use a tape to measure a distance of 10 meters between the transponder and the front of the instrument.
2. Gi e repeated short presses on the red button until function F9 is shown. The display should now show 10m
and calibration is ready. The instrument will only appro e if the inter al is within 9.6 - 10. 4 meter. Please go
to www.haglofsweden.com for instructi e film clips on how to calibrate your instrument!
I portant to know regarding calibration
When calibrating the DME, it is important that the instrument has been gi en enough time to adjust to current
temperature. (function F7). If the instrument is carried in a pocket, it can take up to 10 minutes before the DME
has fully adjusted to current outside temperature. The temperature depending error is approximately 2cm/C°.
If for example the temperature inside the pocket is 15° and the air temperature is -5°, the measurin result of 10
meters will be 10.40m. Best accuracy is obtained after 10 minutes after adjustment. If the instrument is
calibrated without ha ing adjusted to correct temperature, the measuring inaccuracy can be made permanent
when calibrating the instrument.
To think about
The DME instrument solution is designed for outdoor use. Both the measuring unit and the transponder are
water resistant. The most sensiti e parts of the instruments are the ultrasonic transmitters. A special shield
co ers the transmitters, to keep moist, dirt and dust out of the co er. Ne er lea e the transponder upside
down in rain or snow, since this may cause water to reach the openings for the ultra sonic transmitters. When
changing transponder battery, apply some light grease on the O-ring seal on the lock. Always use 9V alcaline
batteries. Replace the batteries when normal resolution is not reached.
Setting unit in Trp Mode - Distance Measuring with 2 DMEs
This method is con enient when two users need to know the exact distance
between one another, for example road width. Use function F3 and the text trP is
shown in the display. Reset the instrument with one press.
Distance Measuring
Start and place the T3 transponder at the end of the distance or in the centre of
the plot at the plot staff. Walk the distance (up to 30 m/yds , depending on
conditions, temperature, weather etc). To obtain a correct distance measuring,
direct the measuring instrument toward the transponder and press the red button
one time. 4 lines [
- - - - ] will show in the DME display. After a few seconds the
distance will appear in the display.
If the DME instrument ha e no answer from the T3 transponder, the 4 [
- - - - ]
in the display will appear but no distance will be displayed. Please check if the
transponder is set, and that the batteries are fresh. If the red button is kept
pressed down, and you slowly mo e backwards, the instrument will measure
and display the increased (or decreased if mo ing forward) continuously.
BAF
To use your DME as a prism, choose your prism factor [F4] by pressing the red button 4 times. Once you ha e
set the prism factor, select DBH Measuring at [F2] by pressing the red button twice. When you take a reading
the number displayed is the minimum diameter that a tree should ha e to be counted in the plot, a calculation
based on the set prism factor and distance to plot center. The ad antage of using your DME instead of your
standard prism is that you can utilize a point cruise e en through thick egetations. It also allows you to work
your plot from the outside in instead of always from plot center out, sa ing you time and allowing you to take
accurate diameter measurements.
1
-
2 cm

DME manual ENU rev. March 2011
©Haglöf Sweden AB
T
Te ec ch hn ni ic ca al l D De et ta ai il ls s
DME
Size: 3 x 4 x 12.5 cm/ 1,2x1,6x4,9 Inch
Weight: 90 g / 0,20 lbm. (incl. battery)
Battery: 9V alcaline
Current: 7mA
Te perature: -15° - 45° C / 59 - 113 F
Ultrasonic Frequency: 25 kHz
Resolution: 0.01 m
Distance transponder pointed: 30 m/ 38,3 Yd. Or better at good conditions
Distance with 360° degree cone on trp.: 20 m/ 21,9 Yd. Or better at good conditions
Accuracy: 1% or better when carefully calibrated
Transponder T3
Size: Diameter 7.0cm, 2.8 Inch
Weight: 85 g (Incl. Battery)
Battery: 1 1,5V AA alcaline
Current: 1.0 mA
Warranty and Service Information
Haglöf Sweden AB warrants that this product shall be free from defects in materials and workmanship, under normal intended use, for a
period of 12 months after date of shipment. The warranty excludes batteries, accessories and any written materials. The warranty does not
apply if the product has been improperly installed, improperly calibrated or operated in a manner not in accordance with the user’s guide.
Warranty is also automatically expired if the product has been opposed to external force and warranty is not applicable for cosmetic
defects. The one-year limited warranty time co ers ob ious fabrication defects. Defects in the electronic components that are impossible
for the manufacturer to detect prior to assembling and shipping of the product may occur. Haglöf Sweden AB can in no case be responsible
for problems of this nature and has no liability for any loss of business, profits, sa ings, consequential damages or other damages resulting
from use of the products described. Signs of misuse, cosmetic damage, accidents or equal automatically withdraw the warranty. The
warranty is alid in the country where your Haglöf product has been purchased. A product co ered by warranty will be object to exchange,
ser ice, and repair or according to special agreement between seller and buyer, within the frames of the limited warranty. Haglöf Sweden
reser es the right to determine which option will be most suitable for each separate case after ha ing examined and e aluated the product.
Important issues:
•For a alid warranty, a copy of in oice or dated receipt of your purchase must be presented. The serial number of the returned
product has to be clearly stated upon return. Go to http://www.haglofsweden.com/PDF/HaglofRMA.pdf for return form/turn to your
supplier for assistance.
•The return freight to us is on buyer’s expense. After warranty repair or exchange, the return freight to you is on our expense. If
warranty has expired or is null and oid, all freights are on buyer’s expense.
•If no original in oice can be presented upon shipment, or if two years or more ha e passed from date of purchase, a customs fee will
be added by the applicable customs authorities and possibly in recei ing country as well. These fees are on buyers account.
•We perform repair and ser ice of products where warranty has expired when possible. Cost estimation will be sent to you after
e aluating the returned product for cost appro al. Please also see abo e paragraph on customs fees.
•Please do not hesitate to contact us or any Haglöf Sweden representati e for questions or comments!
www.haglofsweden.co
Haglöf Sweden®is a family owned company with a long tradition of de eloping and producing instruments for
professional forest measuring work. Today, Haglöf Sweden manufacture and sell the most complete product range for
cruising and in entory work. A profound know-how in workshop production technique has grown to encompass our
state-of-the-art manufacturing of electronic instruments and field software.
There are o er 200 companies representing the Haglöf Sweden brand name around the world. With self-owned and -run
production facilities, the entire production process is under our control. This ensures a ailability and reliable deli eries for
you, as well as prompt ser ice and support when you need it, no matter where in the world you are located. Many Haglöf
Sweden instruments are used outside the forestry industry, such as in building dimensions and utility industry, for road
construction, in police work, gardening, power line sur ey, archaeology, geology and for wildlife management.