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USER MANUAL ALC 2/1-G/R Flex
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Illustration of a gray 3D cube with cutouts and buttons, no text or symbols present
de Originalbetriebsanleitung 3
en Original operating instructions 10
fr Notice d'instructions d'origine 17
it Istruzioni per l'uso originali 25
es Instrucciones de funcionamiento originales 32
pt Instruções de serviço originais 39
nl Originele gebruiksaanwijzing 47
da Originale driftsvejledning 55
no Originale driftsanvisningen 62
sv Originalbruksanvisning 69
fi Alkuperäinen käyttöohjekirja 76
el Auθεντικές οδηγίες χειρισμού 83
pl Instrukcja oryginalna 91
hu Eredeti üzemeltetési útmutató 99
cs Originální návod k obsluze 107
sk Originálny návod na obsluhu 114
et Originaalkasutusjuhend 121
It Originali naudojimo instrukcija 128
Iv Lietošanas pamācības oriģināls 135
ru Оригинальная инструкция по эксплуатации 1 4 2

150
de
Class 2 Laser Product
P≤1 mW λ=520 nm
IEC60825-1:2014

Laserstrahlung
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Diagram of a device with numbered parts including a portable device, cable, and power plugFLEX ALC 2/1-G/R
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indoor SHIFT outdoor MODE - I + - × 1 2 3 41 Taste Betriebsart
Identification on the device

Before switching on the power tool, read the operating manual!
LASER RADIATION
DO NOT STARE INTO BEAM
Class 2 Laser Product
P≤1 mW λ=520 nm
IEC60825-1:2014

Laser radiation
Do not stare into beam.
Product of laser class 2; maximum output power ≤ 1 mW; wave length λ = 520 nm; EN 60825-1:2014
Laser classification
The device complies with laser class 2, based on the standard IEC 60825-1/EN 60825.
The eye is protected by the lid closure reflex if somebody accidentally glances into the laser beam. However, this lid protection reflex may be impaired by medication, alcohol or drugs.
These devices may be used without further protective measures if it can be ensured that no optical instruments reduce the cross-section of the beam.
Do not aim laser beam at people.

Electromagnetic compatibility
Even though the device satisfies the strict requirements of the relevant directives, the possibility cannot be excluded that the device
- will disrupt other devices (e.g. aircraft navigation systems) or
- will be disrupted by powerful radiation, possibly resulting in a wrong operation.
In these cases or other uncertainties, check measurements should be carried out.
For your safety
Intended use
This line laser is designed for commercial use in industry and trade.
The device is designed to determine, transfer and check horizontal height profiles, vertical lines, building lines, perpendicular points and right angles, e.g.:
– to transfer rule and height marks,
- to mark partitions (vertical and/or at right angles) and
- align equipment and elements in three axes.
en
FLEX ALC 2/1-G/R
Safety instructions

WARNING!
- Do not point the laser beam at people or animals and do not look into the laser beam. This measuring instrument generates laser radiation which may cause blindness.
- Have the measuring instrument repaired by qualified technicians and with original spare parts only. This ensures that the safety of the measuring instrument is maintained.
- Do not let children use the measuring instrument unsupervised. They could accidentally blind people.
- Do not use the measuring instrument in a potentially explosive environment which contains flammable liquids, gases or dust. The measuring instrument may generate sparks which will ignite the dust or the vapours.
- If devices other than the operating and adjusting devices specified here are used or if different procedures are implemented, this may result in a hazardous exposure to radiation.
-
Do not disable any safety devices and do not remove any information or warning signs.
-
Before switching on the device, check for visible damage. Do not switch on damaged devices.
- When using the measuring instrument on ladders, avoid an abnormal body posture. Ensure that you have a secure footing and keep your balance at all times.

CAUTION!
- Do not use the device in the rain.
- If the device is brought from a very cold to a warmer environment or vice versa, you should allow the device to acclimatise before using it.
- If using adapters and tripods, ensure that the device is screwed on tightly.
FLEX ALC 2/1-G/R
Overview

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Diagram of a device with numbered parts including a remote control unit, cable, and power plugen
1 Control panel
2 Laser discharge window
3 On/Off button
Switches the power tool on and off. When the device has been switched on, all laser beams are active and indoor mode is active.
When the device is switched off, the self-levelling device is blocked.
4 Laser warning sign
5 Rubberised handle area
6 ¼ " t h r e a d
For attachment on a tripod or wall and tripod holder.
7 USB charge socket
8 USB charge cable
9 U S B c h a r g e r
10 Protective pouch (not illustrated)
en
Control panel

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indoor SHIFT outdoor MODE + - I × 3 2 4 11 Operating mode button
Switches in succession through the
4 different laser projection types.
1x horizontal beam
2x vertical beams
3x horizontal and vertical beams + self- levelling switched off/blocked
4x horizontal and vertical beams + self-levelling switched on (standard operating mode when the device has been switched on)
FLEX ALC 2/1-G/R
2 Ambient mode switchover button
Switches the laser beam from indoor to outdoor conditions.
Indoor mode is used for short distances at normal ambient light levels (in closed rooms).
Activate outdoor mode at high ambient light levels or in bright sunlight. In outdoor mode the device operates with a pulsed laser beam.
This is a little darker than the beam for indoor mode.
3 LED Indoor mode
4 LED Outdoor mode
The LED (3 or 4) is lit green when self-levelling is switched on.
The LED (3 or 4) is lit red when the self-levelling range is exceeded ( ± 4^ ) or when self-levelling is switched off/blocked.
The LED (3 or 4) flashes red when the battery capacity is low. Charge the battery!
FLEX ALC 2/1-G/R
Technical specifications
| Cross-line laser ALC 2/1-G/R | |
| Visible laser diode 520 nm | |
| Laser class 2 | |
| Work area– Horizontal/vertical beam1) | 50 m |
| Precision ...– Horizontal/vertical beam ± 0.3 mm/m | |
| Self-levelling range ± 4° | |
| Power supply Li-Ion 3.7 V | 1200 mAh |
| Operating duration2) | 4 h / 10 h |
| Temperature range– for operation– for storage | -5 °C ... 50 °C-20 °C ... 70 °C |
| Weight 360 g | |
| USB charger | |
| Input voltage 100-240 V~ | |
| Output voltage 5 V / 1 A | —— |
1) The measurement range may be less under unfavourable conditions (bright sunlight, reflective surfaces).

2) The operating duration was determined with all activated laser beams. The operating duration can be extended if beams which are not required are switched off by selecting a different operating mode.
Instructions for use

WARNING!
- Do not point the laser beam at people or animals.
- Do not look into the laser beam.
- Do not put any optical instruments in the path of the beam.
This measuring instrument generates laser radiation which may cause blindness. - Do not use the measuring instrument in a damp, dusty or sandy environment. Device components may be damaged.
- After using the device, immediately switch it off with the On/Off switch in order to block self-levelling.
- If the device is brought from a very cold to a warmer environment or vice versa, you should allow the device to acclimatise before using it.
- If using adapters and tripods, ensure that the device is screwed on tightly.

CAUTION!
en
The most important operating steps are explained at the end of these instructions on the illustrated pages.
See from page 150.
Battery charging with USB cable and USB charger 150
Switching the device on and off 152
Selecting the operating mode 154
Switching over ambient mode 156
Handling the laser 158
Testing the horizontal beam 160
Testing the vertical beam 164
Checking precision
It is recommended to check the device regularly to ensure that it is always precise.
If the precision deviates from the permitted tolerance range, the device must be taken to a customer service workshop authorised by the manufacturer.
Have the device adjusted by authorised technicians only.
The steps required to check the precision are explained at the end of these instructions on the illustrated pages. See from page 160.
FLEX ALC 2/1-G/R
Maintenance and care
Observe the following instructions:
- Handle the device with care and protect it from impacts, vibrations, extreme temperatures.
- When the device is not in use, keep it in the protective pouch.
– Clean the lens with a soft, dry cloth only. - Have the device repaired by qualified technicians and with original spare parts only. This ensures that the safety of the device is maintained.
Disposal information

EU countries only:
Do not throw electric power tools into the household waste!
In accordance with the European Directive 2012/19/EU on Waste Electrical and Electronic Equipment and transposition into national law used electric power tools must be collected separately and recycled in an environmentally friendly manner.
FLEX ALC 2/1-G/R
en

Recycling raw materials instead of waste disposal.
Device, accessories and packaging should be recycled in an environmentally friendly manner. Plastic parts are identified for recycling according to material type.

NOTE
Please ask your dealer about disposal options!
Exemption from liability
The user of this product is obliged to follow the operating instructions exactly. All devices have been checked meticulously before delivery. However, the user should always verify the precision of the device before using it. The manufacturer and his representative are not liable for erroneous or wilfully incorrect use or for any consequential damage or loss of profit. The manufacturer and his representative are not liable for any consequential damage or loss of profit due to natural catastrophes, e.g. earthquakes, storms, floods, etc. or due to fire, accidents, tampering by third parties or use outside the usual application areas.
The manufacturer and his representative are not liable for any damage or loss of profit due to changed or lost data, business interruption, etc. caused by the product or by an unusable product.
The manufacturer and his representative are not liable for any damage or loss of profit due to the device not being operated according to the instructions.
The manufacturer and his representative are not liable for any damage which was caused by improper use of the power tool or by use of the power tool with products from other manufacturers.

Class 2 Laser Product
P≤1 mW λ=520 nm
IEC60825-1:2014

Rayonnement laser
Classification laser
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Diagram of a device with numbered parts including a power adapter, cable, and plug, labeled 1 through 9.FLEX ALC 2/1-G/R
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indoor SHIFT outdoor 3 - I MODE + × 1 2 41 Touche Mode
Class 2 Laser Product
P≤1 mW λ=520 nm
IEC60825-1:2014

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Diagram of a device with numbered parts including a power adapter, cable, and plug, labeled 1 through 9.FLEX ALC 2/1-G/R
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indoor SHIFT outdoor MODE + - I - × 1 2 3 4Class 2 Laser Product
P≤1 mW λ=520 nm
IEC60825-1:2014

Radiación láser
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Diagram of a device with numbered parts including a battery, plug, and cable, plus an inset showing a plug.es
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indoor SHIFT outdoor MODE - I + - × 1 2 3 4Class 2 Laser Product
P≤1 mW λ=520 nm
IEC60825-1:2014

Radiação laser
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indoor SHIFT outdoor 3 - I MODE + × 1 2 4Class 2 Laser Product
P≤1 mW λ=520 nm
IEC60825-1:2014

Laserstralen
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Diagram of a device with numbered parts including a remote control unit, cable, and power plugFLEX ALC 2/1-G/R
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indoor SHIFT outdoor MODE + - I - × 1 2 3 4Class 2 Laser Product
P≤1 mW λ=520 nm
IEC60825-1:2014

Laserstråling
Undgå at se ind i laseren.
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Diagram of a device with numbered parts including a battery, plug, and power adapterFLEX ALC 2/1-G/R
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indoor SHIFT outdoor MODE + - I × 1 2 3 41 Knap driftsmåde
Class 2 Laser Product
P≤1 mW λ=520 nm
IEC60825-1:2014

Laserstråle
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Diagram of a device with numbered parts including a battery, plug, and cable, labeled 1 through 9.no
1 Betjeningsfelt
2 Laser utgangsvindu
3 På/Av tast
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indoor SHIFT outdoor MODE - I + - 1 2 3 41 Tast for driftstype
Class 2 Laser Product
P≤1 mW λ=520 nm
IEC60825-1:2014

Laserstrålning
Titta aldrig direkt in i laserstrålen.
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Labeled diagram of a device with numbered parts including a remote control unit, cable, and power plug.FLEX ALC 2/1-G/R
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indoor SHIFT outdoor 3 - I MODE + × 1 2 4Class 2 Laser Product
P≤1 mW λ=520 nm
IEC60825-1:2014

Lasersäteilyä
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Diagram of a device with numbered parts including a battery pack, plug, and power adapterfi
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indoor SHIFT outdoor MODE I + - 3 2 4 1Class 2 Laser Product
P≤1 mW λ=520 nm
IEC60825-1:2014

Ακτινοβολία λέιζερ
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Diagram of a device with numbered parts including a power adapter, plug, and cable connectionFLEX ALC 2/1-G/R
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indoor SHIFT outdoor 3 - I MODE + × 1 2 4Class 2 Laser Product
P≤1 mW λ=520 nm
IEC60825-1:2014

Promień laserowy
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Diagram of a device with numbered parts including a battery pack, plug, and power adapterFLEX ALC 2/1-G/R
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indoor SHIFT outdoor 3 - I MODE 1 2 4Class 2 Laser Product
P≤1 mW λ=520 nm
IEC60825-1:2014

Lézersugárzás
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Diagram of a device with numbered parts including a power adapter, cable, and plug, labeled 1 through 9.FLEX ALC 2/1-G/R
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indoor SHIFT outdoor 3 - I MODE + × 1 2 4Class 2 Laser Product
P≤1 mW λ=520 nm
IEC60825-1:2014

Laserové záření
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Diagram of a device with numbered parts including a remote control unit, cable, and power plugFLEX ALC 2/1-G/R
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indoor SHIFT outdoor 3 - I MODE 1 2 4Class 2 Laser Product
P≤1 mW λ=520 nm
IEC60825-1:2014

Laserové žiarenie
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Diagram of a device with numbered parts including a power adapter, cable, and chargersk
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indoor SHIFT outdoor 3 - I MODE + × 1 2 4Class 2 Laser Product
P≤1 mW λ=520 nm
IEC60825-1:2014

Laserkiirgus
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Diagram of a device with numbered parts including a portable device, cable, and power plugFLEX ALC 2/1-G/R
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indoor SHIFT outdoor 3 - I MODE + × 1 2 41 Töörežiimi nupp
Class 2 Laser Product
P≤1 mW λ=520 nm
IEC60825-1:2014

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Diagram of a device with numbered parts including a remote control unit, cable, and power plugIt
1 Valdymo pultas
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indoor SHIFT outdoor 3 - I MODE + × 1 2 41 Darbo režimo mygtukas
Class 2 Laser Product
P≤1 mW λ=520 nm
IEC60825-1:2014

Lāzera starojums
Neskatieties starā.
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Diagram of a device with numbered parts including a power adapter, cable, and plug, labeled 1 through 9.FLEX ALC 2/1-G/R
text_image
indoor SHIFT outdoor 3 - I MODE + × 1 2 4Class 2 Laser Product
P≤1 mW λ=520 nm
IEC60825-1:2014

Лазерное излучение
Не смотреть в луч.
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Diagram of a device with numbered parts including a remote control unit, cable, and power plugru
1 Панель управления
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indoor SHIFT outdoor 3 - I MODE + × 1 2 4text_image
Diagram showing a medical device with labeled parts and a close-up of its cable being connected to a device.FLEX ALC 2/1-G/R
de Gerät ein- und ausschalten
en Switching the device on and off
fr Allumer et éteindre l'appareil
it Accendere e spegnere l'apparecchio
es Encendido y apagado del equipo
pt Ligar e desligar aparelho
nl Gereedschap in- en uitschakelen
da Tænd og sluk for apparatet
no Inn- og utkopling av apparatet
sv Till- och frånslagning
fi Laitteen päälle- ja poiskytkentä
el Ενεργοποίηση και απενεργοποίηση της συσκευής
pl Włączanie i wyłączanie urządzenia
hu A készülék be- és kikapcsolása
cs Zapnutí a vypnutí přístroje
sk Zapnutie a vypnutie prístroja
et Seadme sisse- ja väljalülitamine
It Prietaiso jungimas ir išjungimas
Iv lerīces ieslēgšana un izslēgšana
ru Включение и выключение прибора
FLEX ALC 2/1-G/R

flowchart
graph LR
A["ON"] --> B["→"]
B --> C["AUTO"]
C --> D["indoor"]
C --> E["SHIFT"]
C --> F["outdoor"]
C --> G["MODE"]

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OFFFLEX ALC 2/1-G/R
de Einstellung der Betriebsarten
en Setting the operating modes
fr Réglage des modes de service
it Impostazione dei modi di operativi
es Ajuste de modos de funcionamiento
pt Configuração dos modos de operação
nl Instelling van de functies
da Indstilling af driftsmåder
no Innstilling av driftstypene
sv Driftsättsinställning
fi Toimintatavan valinta
el Ρύθμιση των τρόπων λειτουργίας
pl Nastawianie trybów działania
hu Az üzemmódok beállítása
cs Nastavení provozních režimů
sk Nastavenie prevádzkových režimov
et Töörežiimide seadistamine
It Darbo režimų nuostata
Iv Darba režimu nostādīšana
ru Установка режимов работы
FLEX ALC 2/1-G/R

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ON Auto indoor SHIFT Outdoor I MODE + + + + Indoor SHIFT Outdoor + - + - Indoor SHIFT Outdoor + - + - Indoor SHIFT Outdoor + - + - Indoor SHIFT Outdoor + - + - Indoor SHIFT Outdoor + - + - Indoor SHIFT Outdoor + - + - Indoor SHIFT Outdoor + - + - Indoor SHIFT Outdoor + - + - Indoor SHIFT Outdoor + - + - Indoor SHIFT Outdoor + - + - 2x 3x 4x 1x 2xFLEX ALC 2/1-G/R
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indoor SWIFT indoor I
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indoor SHIFT outdoor - MODEFLEX ALC 2/1-G/R
de Handhabung des Lasers
en Handling the laser
fr Maniement du laser
it Uso del laser
es Manejo del láser
pt Manuseamento do laser
nl Vasthouden van de laser
da Händtering af laseren
no Behandling av laseren
sv Laserns handhavande
fi Laserin käyttö
el Χειρισμός του λέιζερ
pl Posługiwanie się laserem
hu A lézer kezelése
cs Manipulace s laserem
sk Manipulácia s laserom
et Laseri kasutamine
It Kaip elgtis su lazeriu
Iv Lāzera izmantošana
ru Обращение с лазером
FLEX ALC 2/1-G/R

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tripod-mounted surveying instrument with a mounted device, no visible text or symbols
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Diagram showing a camera setup with three framed artworks on a tripod, connected by dashed lines to a wall (no text or symbols present)
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Diagram of a surveying instrument on a tripod with a grid and 3D perspective projection (no text or symbols)FLEX ALC 2/1-G/R
de Prüfung der Genauigkeit des horizontalen Strahls
en Checking the accuracy of the horizontal beam
fr Vérification de la précision du rayon horizontal
it Controllo di precisione del raggio orizzontale
es Control de la exactitud del haz horizontal
pt Verificação da precisão do raio horizontal
nl Controle van de nauwkeurigheid van de horizontale straal
da Kontrol af nøjagtigheden horisontal stråle
no Kontroll av nøyaktigheten av den horisontale strålen
sv Kontroll av den horisontala strålens noggrannhet
fi Vaakasäteen tarkkuuden tarkastus
el 'Ελεγχος της ακρίβειας της οριζόντιας ακτίνας
pl Sprawdzanie dokładności pionowego promienia
hu A vízszintes sugár pontosságának ellenőrzése
cs Kontrola přesnosti horizontálního paprsku
sk Kontrola presnosti horizontálneho lúča
et Horisontaalkiire täpsuse kontrollimine
It Horizontalaus spindulio tikslumo tikrinimas
Iv Horizontāla stara precizitātes pārbaude
ru Проверка точности горизонтального луча

FLEX ALC 2/1-G/R

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5. A1 B1
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6. A1 B1 15 cm
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7. A1 B2 B1
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8. 180° A1 B2 B1text_image
A2 A1 B2 B1 A2 D1 A1 D2 B2 B1
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(D1-D2) / 2 ≦ 3 mm √
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(D1-D2) 2 > 3 mm →FLEX ALC 2/1-G/R
de Prüfung der Genauigkeit des vertikalen Strahls
en Checking the accuracy of the vertical beam
fr Vérification de la précision du rayon vertical
it Controllo di precisione del raggio verticale
es Control de la exactitud del haz vertical
pt Verificação da precisão do raio vertical
nl Controle van de nauwkeurigheid van de verticale straal
da Kontrol af nøjagtigheden vertikal stråle
no Kontroll av nøyaktigheten av den vertikale strålen
sv Kontroll av den vertikala strålens noggrannhet
fi Pystysäteen tarkkuuden tarkastus
el 'Ελεγχος της ακρίβειας της κάθετης ακτίνας
pl Sprawdzanie dokładności poziomego promienia
hu A függőleges sugár pontosságának ellenőrzése
cs Kontrola přesnosti vertikálního paprsku
sk Kontrola presnosti vertikálneho lúča
et Vertikaalkiire täpsuse kontrollimine
It Vertikalaus spindulio tikslumo tikrinimas
Iv Vertikāla stara precizitātes pārbaude
ru Проверка точности вертикального луча

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1. 240 cm 480 cm A
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2. Indoor SHIFT Outdoor MODE 2x → dashed
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3. D1 B C A 480 cm
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4. D1 180° A B C·FLEX ALC 2/1-G/R

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5. D1 B C A
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6. D1 D2 B C A D1 = D2 or < 1,6 mm
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D1 D2 D2 Δ D1
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Δ ≦ 1,6 mm Δ > 1,6 mmFLEX ALC 2/1-G/R
