CROWN CT44048 Line Laser Meter Instruction Manual

CROWN CT44048 Line Laser Meter

Technical Data

Technical data|
---|---
Line laser|  | CT44048 MC
Appliance code|  | 423139
Projected beams|  | 2V(360°) 1H(360°) *
Working range| [m]| 30
Levelling accuracy:|  |
– horizontal beam|  | ±2 mm at 10 m
– vertical beam|  | ±2 mm at 10 m
Self-leveling time| [s]| ≤5
Self-leveling range|  | ±3°
Laser class|  | II
Laser type| [nm]| 515
Battery type|  | 3,7V; Li-Ion, 4000 mAh
Battery charging time| [min]| 180-240
Thread for tripod|  | 5/8″
Operating temperature range| [°C]| -10 —- +40
Storage temperature range| [°C]| -20 —- +55
Weight| [kg] [lb]| 1,03
2.27
V – vertical plane, H – horizontal plane| ****|

Declaration of conformity

We declare under our sole responsibility that the product described under “Technical data” is in conformity with all relevant provisions of the directives 2006/42/EC including their amendments and complies with the following standards:

• IEC 60825-1:2014.

Certification

Wu Cunzhen manager

Merit Link International AG
Stabio, Switzerland, 30.08.2019

General safety rules

WARNING – To reduce the risk of injury, user must read the instruction manual!

ATTENTION!
Before using the appliance for the first time, read this manual carefully and follow all its recommendations and rules.

Keep the manual for future reference or for the next owner.

• Before using, check the appliance housing integrity; in case of any damages the appliance must not be used.
• Do not direct a laser beam at people or animals, and do not look at a straight or reflected laser beam. A laser beam can blind people, cause an accident or damage eyes. It is strictly forbidden to look at the laser beam through optical appliances (binoculars, telescopes, etc.), this can cause damage to the retina.
• Do not operate the appliance in atmospheres containing explosive gases, dust or vapors.
• When working be aware of the factors which may cause wrong measurement results:
• contamination of laser emitter window;
• measurement through transparent objects (windows, aquariums, etc.);
• measurement on reflective surfaces (mirrors, polished metal surfaces, etc.);
• Do not expose the appliance to moisture, and do not allow moisture to enter the appliance. Do not immerse the appliance into liquid.
• Do not drop or knock the appliance.
• Protect the appliance against electromagnetic fields (for example, fields from electric arc welding or induction heaters).
• In case of sudden changes in ambient temperature, do not use the appliance for at least 30 minutes.
• Do not leave the appliance near objects with high temperatures.

Battery tool use and care

• Recharge only with the charger specified by the manufacturer. A charger that is suitable for one type of battery pack may create a risk of fire when used with another battery pack.
• Use the appliance only with a suitable battery pack. Use of other battery types may cause injuries and fire.
• Under abusive conditions, liquid may be ejected from the battery; avoid contact. If contact accidentally occurs, flush with water. If liquid contacts eyes, additionally seek medical help. Liquid ejected from the battery may cause irritation or burns.
• Do not open the battery. The danger of circuit.
• In case of damage and improper use of the battery, vapors may be emitted. Provide for fresh air and seek medical help in case of complaints. The vapors can irritate the respiratory system.
• When the battery is defective, liquid can escape and come into contact with adjacent components. Check any parts concerned. Clean such parts or replace them, if required.
• Protect the battery against heat, e.g., also against continuous sun irradiation and fire. There is a danger of an explosion.
• Protect the battery charger from rain and moisture. The penetration of water in a battery charger increases the risk of electric shock.
• Do not charge other batteries. The battery charger is suitable only for charging lithium-ion batteries within the listed voltage range. Otherwise, there is a danger of fire and explosion.
• Keep the battery charger clean. Contamination may cause the danger of electric shock.
• Check the battery charger, cable, and plug each time before using. Do not use the battery charger when defects are detected. Do not open the battery charger yourself and have it repaired only by qualified personnel using original spare parts. Damaged battery chargers, cables, and plugs increase the risk of electric shock.
• Do not operate the battery charger on easily inflammable surfaces (e.g., paper, textiles, etc.) or in combustible environments. There is a danger of fire due to the heating of the battery charger during charging.

Appliance maintenance
Maintenance of your appliance must be performed by qualified personnel using the recommended spare parts. This ensures that the safety of your appliance will be preserved.

Symbols used in the manual
The following symbols are used in the operation manual, please remember their meanings. The correct interpretation of the symbols will allow the correct and safe use of the appliance.

• Serial number sticker:
  • CT … – model;
  • XX – date of manufacture;
  • XXXXXXX – serial number.
• Read all safety regulations and instructions.
• Caution! Laser radiation.
• Movement direction.
• Rotation direction.
• Acoustic signal.
• Battery charging time.
• Locked.
• Unlocked.
• A sign certifying that the product complies with essential requirements of the EU directives and harmonized EU standards.
• Attention. Important.
• Useful information.
• Do not dispose of the appliance in a domestic waste container.

Intended use
Line laser is intended to draw and/or control horizontal and vertical lines. Laser beams are projected at 360°, reflecting vertical or horizontal planes, or its intersection. This expands the application field of the device and makes the performance of certain work types more convenient.

Components

1. The protective cover of the vertical laser beam emitter
2. Button “OUT”
3. Vertical laser beam on / off switch
4. Horizontal laser beam on / off switch
5. Protective cover of the horizontal laser beam emitter
6. Laser head position lock
7. Socket for power unit connector
8. Battery case cover
9. Threaded hole for tripod mounting
10. Power unit *
11. Battery *
12. Adapter *
13. Mounting plate *
14. Universal holder (assembled) *
15. Metal carrying case *
16. Indicator
17. Magnet *
18. Bubble level *
19. Screw for adjustment horizontal position of the holder *
20. Locking button *
21. Carriage *
22. Screw for precise relocation of the carriage *
23. Swivel bolt *
    • Optional extra

Not all of the accessories illustrated or described are included as standard delivery.

Installation/regulation

Do not draw up the fastening elements too tight to avoid damaging the thread.

Battery installation (see fig. 1)
If laser beams flash, it indicates that battery 11 shall be charged.

• Open cover 8 (see fig. 1).
• Install the battery 11. Note: the groove on the housing of battery 11 shall match the ridge inside the battery compartment during installation.
• Close cover 8.
• Close cover 8.

Universal holder (see Fig. 2-7)

• Mounting / dismounting of adapter 12 on the universal holder 14 shall be made as shown in Figure 2.1.
• Install the appliance on the universal holder as shown in figure 2.2.
• Fix mounting plate 13 on the wall (see Fig. 3.1).
• Install the universal holder 14 (with a previously attached appliance) on the mounting plate 13 (see fig. 3.2). The magnets 17 ensure the universal holder 14 is fixed securely.
• You can install the universal holder 14 on ferromagnetic metal surfaces (elements of metal structures, metal doors, frame structures for fixing drywall, etc.) using the magnets 17. In this case, the appliance shall be installed in the position shown in Figure 3.2. Note: if you flip the appliance, the self-leveling system of the laser head will be misguided.
• If you hear a sound signal when the appliance is turned on and the laser beams are flashing, the deviation of the appliance from the horizontal plane is more than ±3°. Adjust the position of the appliance with the screw 19 according to the bubble level 18 as shown in figures 4.1-4.2.
• Move the appliance installed on the universal hold-er 14 as shown in figure 5.
• Press and hold the locking buttons 20 and move the carriage 21 to relocate the appliance more quickly (see fig. 5.1-5.2).
• Rotate screw 22 to move carriage 21 precisely (see Fig. 5.3).
• You can rotate the appliance mounted on the universal holder 14 (see fig. 6).
• Rotate the appliance while holding the case to rotate the appliance more quickly (see fig. 6.1).
• Rotate the screw 23 to rotate the appliance precisely (see Fig. 6.2).

Battery charging

Initial operating
Battery 11 is supplied partially charged. Fully charge the battery before the first use of the appliance.

Charging (see Fig. 7)

• Connect power unit 10 to the mains (indicator 16 lights green, ready to charge).
• Connect the plug of power unit 10 to socket 7 (see fig. 7). During charging indicator 16 lights red. When charging is complete, indicator 16 lights green.
• When charging is complete, disconnect plug of power unit 10 from socket 7 and unplug power unit 10 from the mains.
  • During charging the battery 11 and power unit 10 of the appliance may become hot – it is no problem.
  • You can use the appliance during charging. It will cause no harm to the battery 11.

Switching on/off

Switching on:
Set the lock 6 to the position shown in Figure 8.1. It will unlock the suspension gear of the laser head and turn on the power. If the appliance is installed with a slope of more than ±3°, you will hear an audible signal. By pressing buttons 3 and 4 you can switch on or switch off laser beams.

Switching off:
Set the lock 6 to the position shown in Figure 8.2. It will lock the suspension gear of the laser head and turn off the power.

Design features

Laser head self-leveling system (see Fig. 4, 8)
The laser head self-leveling system makes laser measurement possible if the appliance is put on an inclined or uneven surface (inclination angle not exceeding ±3°). If the maximum possible inclination angle is exceeded, laser beams start blinking; the appliance gives an acoustic signal. In this case, it is necessary either to reinstall the appliance on a more even place, or (when installing the appliance on universal holder 14) to align the position of the appliance with screw 19 (according to the bubble level 18 (see fig. 4 )).

Attention: if the appliance is moved during use, lock the laser head during storage and transportation (set lock 6 to the position shown in Fig. 8.2).

Circular planes projection
When laser beams get on a cone-shaped wedge, they are projected at 360°, forming a circular laser plane. It allows you to make a circular level marking quickly and accurately without turning the appliance body. Moreover, the design features allow you to install the appliance very close to the walls or ceiling.

Button “OUT”
The “OUT” button is designed to enable operation in bright conditions (for example, in bright sunlight). Also, to work in this mode, it is recommended to use a special laser receiver or laser glasses (not supplied).

• To turn on the outdoor mode, press the “OUT” button.
• To turn off the outdoor mode, press the “OUT” button again.

Universal holder (see Fig. 2-7)
The universal holder 14 allows you to install the appliance on various objects, and to change the position of the appliance easily, quickly and accurately (move, turn).

Working Advice

Precision test

• The appliance is ready for operation. The accuracy of the appliance has been verified at the factory.
• If measurement error exceeds the maximum allowable variance during the precision test, please contact the CROWN service center.

Factors, influencing appliance precision:

• Ambient temperature, e.g., temperature difference which may take place with distance from the ground. The temperature difference is most considerable near the ground surface, therefore it is recommended to use the tripod for measurements in areas with lengths exceeding 20 m.
• Contamination of the laser emitter window. Al-ways check protective windows for contaminations before use and clean them if necessary.
• Measurement through transparent surfaces (windows, aquariums, etc.). It is not recommended to carry out such measurements.
• Measurements on reflective surfaces (mirrors, polished metal surfaces, etc.). It is not recommended to carry out such measurements.
• Presence of steam, dust, smoke, etc. in the air. It is not recommended to carry out such measurements.
• Fall of the appliance or a heavy shock. In this case, it is recommended to perform a precision test. If the maximum allowable variance is exceeded, please contact the CROWN service center.

General recommendation (see Fig. 8)

• Before starting work ensure that all measurements will be carried out under suitable conditions (see section “Factors, influencing appliance precision”).
• Install the appliance correctly as described above. It is recommended to use the universal holder 14 or to install the appliance on a suitable tripod (not supplied). Negligible horizontal misalignment can be compensated with the laser head self-leveling system (not exceeding ±3°).
• Turn on the appliance as described above. If you turn on the appliance with a laser head self-leveling on and hear an acoustic signal, and the laser beams blink, you have to re-position the appliance, otherwise the measurement results will be incorrect.
• After finishing work turn off the appliance as de-scribed above (lock 6 shall be in the position as shown in fig. 8.2 and laser beams must be off).
• It is recommended to put the appliance for long-term storage and transportation into case 15. Ensure that there are no moisture drops on the appliance elements (if necessary, wipe with a soft cloth), after that put the appliance into case 15.

Maintenance/preventive measures

Cleaning the appliance

• Keep the appliance clean. Do not use caustic substances or solvents.
• Emitter windows shall be cleaned with a soft cloth.

Do not use sharp objects or corrosive agents for this purpose.

After-sales service and application service
Our after-sales service responds to your questions concerning the maintenance and repair of your product as well as spare parts. Information about service centers, parts diagrams and information about spare parts can also be found at: www.crown-tools.com.

Transportation

• Categorically not to drop any mechanical impact on the packaging during transport.
• When unloading/loading is not allowed to use any kind of technology that works on the principle of clamp-ing packaging.

Environmental protection

Recycle raw materials instead of disposing them as waste.

• Appliances, accessories, and packaging should be sorted for environment-friendly recycling.
• The plastic components are labeled for categorized recycling.
• These instructions are printed on recycled paper manufactured without chlorine.

Merit Link International AG
P.O. Box 641, CH-6855 Stabio Switzerland
www.meritlink.com.

The manufacturer reserves the possibility to introduce changes.

References

• CROWN Power tools - Accessories - Garden tools - Air tools

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