Laserliner AL 26 Plus Classic Level Self Levelling Optical Magnification Instructions

Laserliner AL 26 Plus Classic Level Self Levelling Optical Magnification

Completely read through the operating instructions, the „Warranty and Additional Information“ booklet as well as the latest information under the internet link at the end of these instructions. Follow the instructions they contain. This document must be kept in a safe place and passed on together with the device.

Sturdy and reliable leveling instruments for the building and construction industry, with a high-performance lens producing a bright image

• Automatic horizontal leveling of the target line with precision, air-damped compensator.
• Distance is determined with the aid of the marks on the crosshairs with easy conversion of the read value from centimeters to metres (multiplier 100).
• Practical mirror for easy alignment with circular bubble level.
• Horizontal circle with endless vernier adjustment for precise targeting.
• Iron rear- and foresight for rapid pick-up of aim.
• Convenient controls for easy, time-saving operation.
• Dust- and waterproof

General safety instructions

• The device must only be used in accordance with its intended purpose and within the scope of the specifications.
• The measuring tools and accessories are not toys. Keep out of reach of children.
• The structure of the device must not be modified in any way.
• Do not expose the device to mechanical stress, extreme temperatures, moisture or significant vibration.
• The device must no longer be used if one or more of its functions fail or the battery charge is weak.
• Do not aim at bright light sources (laser, lamps, sun) as this can damage your eyes.
• Do not touch the optical lenses with your hands.
• Use air to blow dust off the optical lenses.
• To transport the levelling instruments secure them with the compensator lock in the original carrying case.
• Do not set up the tripod on unsecured roads: Risk of accident.

OVERVIEW

1. Objektive
2. Telescope
3. Fast sighting
4. Focussing (rear)
5. Okular / focussing crosshairs
6. Leveling screw
7. Horizontal dial
8. Calibration screw, leveling bubble
9. Leveling bubble
10. Mirror
11. Lateral fine adjustment

To rule out inaccuracies, the device should be placed at the measuring location 15 minutes before taking a measurement to allow it to assume ambient temperature.

Alignment

1. Bring crosshairs into focus (5)
2. Initial alignment of the telescope towards the graduated staff is done by hand, using the iron sights.
3. Focus the image of the staff, by operating the focusing knob, turn crosshairs onto the staff centre.
4. Make sure focusing is free of parallax. The focusing is alright when crosshairs and graduation of the staff] don‘t change their positions even when looked at from different angles (keep changing position of the eye in front of the eyepiece).

The AL 32 has segmentation within the crosshairs for accurate targeting.

The remaining inclinations of the crosshairs which are left after the levelling bubble has been centred will be eliminated by the compensator. The]compensator, however, will not eliminate] any inclinations caused by faulty calibration of the leveling bubble or the crosshairs. Therefore, the positions of both gadgets should be checked before measuring (see calibration).

Determination of a height difference

1. Place instrument halfway between the positions of staves A and B. Aim instrument at staff A and read the value of the graduation of the staff at your crosshairs (e.g. A = 140 cm). Turn instrument towards rod B and get the reading from the graduation (e.g. B = 90 cm).
2. The difference (A-B) results in a height difference H = + 50 cm between B and A. The point B is 50 cm higher than point A. The difference H turns negative when point B is lower than point A.

Distance determination

1. Read values of the upper graduation mark (0 =1,44 m)and the lower graduation mark (e.g. U = 1,36 m).
2. Multiply the difference by the factor 100 (E = 100 x e), the result is the distance E = 8 m.

• To achieve reliable results make sure the levelling staff is precisely ! aligned vertically.

Angle measurement

1. Attach the plumb line to the hook and set up the tripod with the tripod head such that the plumb is roughly over the ground point. Tread legs of tripod firmly into the ground.
2. Attach instrument to tripod and fix it. Now centre the plumb bob exactly over the point by adjusting the lenghts of the tripod legs or by changing the position of the instrument on the tripod.
3. With the aid of your iron sights, aim telescope at the first aim, align by using the lateral fine adjustment. Now turn knurled ring until the index and the zero position of the horizontal dial are congruent (turn dial onto zero).
4. Aim telescope at the second aim and read the angle function under the index marking

Calibration Levelling bubble

1. Control : Set horizontal dial onto 0°. Place the bubble right into the center of the circle on the leveling bubble by turning the leveling screws (6). Turn telescope through 180°/200 gon. The circular bubble level is correctly aligned when the bubble is still in the center.
2. Adjustment: In case the bubble is now out of the center marking, set half of the deviation „a“ which is (fi a) by operating the three calibration screws on the levelling bubble. After that, adjust leveling bubble by using the levelling screws, then check calibration by turning the whole instrument through 180°/200 gon.
3. Repeat control and calibration until the bubble of the leveling bubble remains in the inner circle after each turn of the instrument. The meter needs to be calibrated and tested on a regular basis to ensure it produces accurate measurement results. We recommend carrying out calibration once a year.

Crosshairs

1. Control: Set up and align the instrument in the middle between two fixed levelling staff positions A and B approx. 30 m apart. Read off the value a1 from the levelling staff A and the value b1 from the levelling staff B. Calculate the height difference (a1 -b1).Now place instrument in a distance of approx. 2 m away from staff A and read the value a2. Now direct the levelling instrument at levelling staff B. Read the value b2 and calculate the height difference, which is (a2 -b2 ). The adjustment of the level is correct when you get the reading (a1 -b1) = (a2 -b2). This means that the values of the height differences achieved with the first and the second measurement are equal, and the instrument operates error-free.

Adjustment will be required if the height differences are not the same. Care and storage

1. Use a soft cloth to clean instrument from dust and dirt.
2. Carefully clean lens and ocular with a soft and clean cloth, cotton or a soft brush, use no liquids other than pure alcohol. Do not touch any surfaces of the lenses.
3. In wet weather conditions, initially dry the case and instrument by wiping them down and then allow to dry out with the case open at the place of storage.
4. For carrying the instrument over long distances, it is best to place it in its container. Attention: Levelling screws to be turned all the way in.Contact your authorised dealer or else the UMAREX-LASERLINER Service Department.

EU directives and disposal
This device complies with all necessary standards for the free movement of goods within the EU.
Further safety and supplementary notices at:
http://laserliner.com/info?an=AGM

Umarex GmbH & Co. KG– Laserliner –
Möhnestraße 149, 59755 Arnsberg, Germany
Tel.: +49 2932 638-300, Fax: +49 2932 638-333
info@laserliner.com

Umarex GmbH & Co. KG Donnerfeld 2
59757 Arnsberg, Germany
Tel.: +49 2932 638-300, Fax: -333
www.laserliner.com

References

• Info - Laserliner
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