CROWN CT44022 Laser Level Instruction Manual

CROWN CT44022 Laser Level

Technical data

Technical data|
---|---
Line laser| | CT44022| CT44023| CT44024
Appliance code| | 421555| 421552| 421579
Projected beams| | 1V 1H 1D| 2V 1H 1D| 4V 1H 1D
Working range| [m]| 30| 30| 30
Levelling accuracy:| | | |
– horizontal beam| | ±1 mm at 7 m| ±1 mm at 7 m| ±1 mm at 7 m
– vertical beam| | ±1 mm at 7 m| ±1 mm at 7 m| ±1 mm at 7 m
– plumbing point| | ±1 mm at 1,5 m| ±1 mm at 1,5 m| ±1 mm at 1,5 m
– upper lines| | ±1 mm at 5 m| ±1 mm at 5 m| ±1 mm at 5 m
– beam perpendicularity| | ±2 mm at 5 m| ±2 mm at 5 m| ±2 mm at 5 m
Self-leveling time| [s]| ≤5| ≤5| ≤5
Self-leveling range| | ±3°| ±3°| ±3°
Laser class| | II| II| II
Laser type| [nm]| 525| 525| 525
Battery type| | 3,7V; Li-Ion| 3,7V; Li-Ion| 3,7V; Li-Ion
Battery charging time| [min]| 180-240| 180-240| 180-240
Thread for tripod| | 5/8″| 5/8″| 5/8″
Operating temperature range| [°C]| -10 … +40| -10 … +40| -10 … +40
Storage temperature range| [°C]| -20 … +55| -20 … +55| -20… +55
Weight| [kg]

[lb]

| 1,03

2.27

| 1,04

2.29

| 1,04

2.29

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

General safety rules

WARNING – To reduce the risk of injury, user must read 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.
Attention : glasses which are included in the scope of delivery of the appliance are not protective glasses and are intended to improve visibility of the laser beam. Do not look at the laser beam through these glasses – it may cause injuries.

• Do not operate the appliance in atmospheres con-taining explosive gases, dust or vapours
• When working be aware of the factors which may cause wrong measurement results:
• contamination of laser emitter window;
• measurement through transparent objects (win-dows, aquariums, etc);
• measurement on reflective surfaces (mirrors, pol-ished metal surfaces, etc);
• presence of steam, dust, smoke, etc in the air
• Do not expose the appliance to moisture, and do not allow moisture 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 induc-tion 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 temperature

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. 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 re-place them, if required
• Protect the battery against heat, e.g., also against continuous sun irradiation and fire. There is danger of explosion
• Protect the battery charger from rain and mois-ture. The penetration of water in a battery charger in-creases 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 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 quali-fied 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 in-flammable surfaces (e.g. , paper , textiles , etc.) or in combustible environments. There is 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
Following symbols are used in the operation manual, please remember their meanings. Correct interpreta-tion of the symbols will allow correct and safe use of the appliance

Intended use
Line laser is intended to draw and / or control horizon-tal, vertical and inclined lines.

Installation / regulation

Do not draw up the fastening ele-ments too tight to avoid damaging the thread.
Mounting / dismantling / adjustment of some elements is similar for all appliance models. In this case no particular appli-ance model is indicated in the explana-tory drawing.

Components

1. Strap
2. Battery case cover
3. Socket for power unit connector
4. Vertical emitter window
5. Horizontal laser beam on / off switch
6. Laser beam on / off switch with a locked laser head
7. Vertical laser beam on / off switch
8. Bubble level
9. Laser head position lock
10. Adjustable leg
11. Swivel bolt
12. Horizontal emitter window
13. Power unit *
14. Carrying belt *
15. Laser viewing glasses *
16. Case *
17. Blind plug
18. Indicator

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

Adjustable legs (see fig. 1)
In case of an acoustic signal and blinking laser beams when the appliance is turned on, horizontal misalignment of the appliance is more than ±3°. Adjust the position of the appliance with legs 10 with reference to bubble level 8 indication as shown in figure 1.

Battery charging

Initial operating
The appliance is delivered with partial battery charge. Fully charge the battery before the first use of the appliance.
Charging (see fig. 2)

• Connect power unit 13 to the mains (indicator 18 lights green, ready to charge)
• Connect the plug of power unit 13 to socket 3 (see fig. 2). During charging indicator 18 lights red. When charging is complete, indicator 18 lights green
• When charging is complete, disconnect plug of power unit 13 from socket 3 and unplug power unit 13 from the mains

During charging the battery and power unit 13 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.

Switching on / off

When self-levelling is on

Switching on:
Set lock 9 to position as shown in fig. 3.1. This will unlock the suspension gear of the laser head, turn laser power and bubble level lighting 8 on. If the appliance is positioned on the inclined surface with an angle of more than ±3°, you will hear an acoustic signal. You can switch on and off the laser beams pressing on / off switches 5 and 7

Switching off:
Set lock 9 to position as shown in fig. 3.2. This will lock the suspension gear of the laser head, turn laser power and bubble level lighting 8 off

When self-levelling is off

Switching on:
Set lock 9 to position as shown in fig. 3.2, then press and release on / off switches 6. Laser power is now on, but the suspension gear of the laser head is locked. No acoustic signals are given when the appliance is inclined. You can switch on and off the laser beams pressing on / off switches 5 and 7

Switching off:
Press and release on / off switches 6

Design features

Laser head self-levelling system
Laser head self-levelling system makes laser mea-surement possible, if the appliance is put on an in-clined or uneven surface (inclination angle not ex- ceeding ±3°)
If maximum possible inclination angle is exceeded, la-ser beams start blinking; the appliance gives an acous-tic signal. In this case put the appliance onto an even surface or adjust the position with adjustable legs 10. Use bubble level 8 to facilitate the appliance positioning.

Attention: if the appliance is moved dur-ing use, lock the laser head during storage and transportation (set lock 9 to the position shown in fig. 3.2).

Adjustable legs (see fig. 1.1)
Adjustable legs 10 allow for appliance position alignment if put on an inclined or uneven surface (see fig. 1.1).

Bubble level
Bubble level 8 shows appliance position in a horizontal plane. If the air bubble is in the middle of bubble level 8, the appliance is positioned correctly (see fig. 1.2).

Swivel bolt (see fig. 4)
Swivel bolts 11 make it possible to turn the appliance with a small angle with high precision (see fig. 4).

Working advice

Precision test
If measurement error exceeds maximum allowable variance during the precision test, please contact CROWN service centre.

Factors, influencing appliance precision:

• Ambient temperature, eg, temperature differ-ence which may take place with distance from the ground. Temperature difference is most consider-able near ground surface, therefore it is recom-mended to use the tripod for measurements in areas with length 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 (win-dows, aquariums, etc) It is not recommended to carry out such measurement
• Measurements on reflective surfaces (mirrors, polished metal surfaces, etc) It is not recommended to carry out such measurement
• Presence of steam, dust, smoke, etc in the air It is not recommended to carry out such measurement
• Fall of the appliance or a heavy shock In this case it is recommended to perform a precision test If maximum allowable variance is exceeded, please contact CROWN service centre

Horizontal beam precision test (surface slope) (see fig. 3, 5)

• Put the appliance onto an even horizontal surface between two walls (“A” and “B” in the figure) 7 m apart from each other
• Turn on the appliance as described above (laser head self-levelling on, see fig. 3.1). Turn on horizontal and vertical laser beams
• Mark the point of intersection of two laser beams on wall “A” (point “a1” in fig. 5.1).
• Turn the appliance body and mark the point of intersection of two laser beams on wall “B” (point “b1” in fig. 5.2).
• Position the appliance in the distance of 0,5-0,7 m from the wall and mark the same points (point “a2” and “b2” in fig. 5.3 and 5.4).
• If differences [а1-а2] and [b1-b2] do not differ from each other in value exceeding the allowable variance, specified in the technical data sheet (1 mm), the appliance precision is within allowable limits

Example : the difference [а1-а2]=6 mm and [b1-b2]=5 mm. Thus, the variance value of the appli-ance is [а1-а2]-[b1-b2] = 6-5 = 1 mm.

Horizontal beam precision test (surface bending) (see fig. 3, 6)

• Put the appliance onto an even horizontal surface approximately 7 m apart from the wall
• Turn on the appliance as described above (laser head self-levelling on, see fig. 3.1). Turn on horizontal and vertical laser beams
• Mark the point of intersection of two laser beams on wall “A” (point “c1” in fig. 6.1).
• Turn the appliance body to the right (point “c2”) approximately 2,5 m and ensure that the horizontal line matches point “c1” or the distance from this point (“x1”) does not exceed half of the allowable variance value (0,5 mm), specified in the technical data sheet (see fig. 6.2).
• Perform the same actions turning the appliance body to the left (point “c3” and distance “x2”) (see fig. 6.3).

Vertical beam precision test (see fig. 3, 7)

• Put the appliance onto an even horizontal surface approximately 7 m apart from the wall
• Fix an approx 2,5 m long plumb line to the wall
• Turn on the appliance as described above (laser head self-levelling on, see fig. 3.1). Turn on the vertical laser beam and focus it toward the plumb line (see fig. 7).
• The laser beam shall evenly illuminate the plumb line in its whole length. If not the case, the offset (“x3”) shall not exceed the variance value (1 mm), specified in the technical data sheet

Plumbing point precision test (see fig. 3, 8)

• Position the appliance at height of 1,5 m from the floor.
• Turn on the appliance as described above (laser head self-levelling on, see fig. 3.1). Turn on horizontal and vertical laser beams, mark the position of the plumbing point (see fig. 8.1).
• Turn the appliance body to 90°, 180°, 270°, 360°, and mark the position of the plumbing point in each of the listed positions (see fig. 8.2). These marks shall match or lie within a circle with a diameter not exceeding 1 mm (see fig. 8.3).

Upper lines intersection precision test (see fig. 3, 9)[CT44023, CT44024]

• Position the appliance onto an even surface 2,5 m apart from the ceiling
• Turn on the appliance as described above (laser head self-levelling on, see fig. 3.1). Turn on all vertical laser beams and mark the intersection point on the ceiling (see fig. 9.1).
• Turn the appliance body to 90°, 180°, 270°, 360°, and mark the intersection point in each of the listed positions (see fig. 9.2). These marks shall match or lie within a circle with a diameter not exceeding 0,5 mm (see fig. 9.3).

Vertical laser beams perpendicularity test (see fig. 10)[CT44023, CT44024]

• Position the appliance onto an even horizontal surface approximately 2,5 m apart from the walls (see fig. 10, showing the schematic top view).
• Turn on the appliance as described above (laser head self-levelling on, see fig. 3.1). Turn on two perpendicular vertical laser beams (“L1” and “L2”) and mark their position on the walls (lines “d1” and “d2”) (see fig. 10.1).
• Turn the appliance body to 90° from the original position, align laser beam “L1” with line “d2” and mark the position of the beam “L2” with line “d3” (see fig. 10.2).
• Turn the appliance body to 180° from the original position, align laser beam “L1” with line “d3” and mark the position of the beam “L2” with line “d4” (see fig. 10.3).
• Turn the appliance body to 270° from the original position, align laser beam “L1” with line “d3” and mark the position of the beam “L2” with line “d5” (see fig. 10.4).
• Measure the distance (“x4”) between the lines “d1” and “d5” – it shall not exceed half of the variance value (1 mm), specified in the technical data sheet.

General recommendation (see fig. 11)

• Before starting work ensure that all measurements will be carried out under suitable conditions (see section “Factors, influencing appliance precision”).
• Place the appliance correctly with reference to bubble level 8 indications. If necessary, adjust the appliance position with adjustable legs 10 Negligible horizontal misalignment can be compensated with the laser head self-levelling system (not exceeding ±3°)
• Put on the glasses 15 to improve laser beam visibility Attention: glasses 15 are not protective glasses. It is strictly prohibited to look at the laser beam through these glasses – it may cause eye retina damage.
• Turn on the appliance as described above. If you turn on the appliance with a laser head self-levelling 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
• You can mark inclined lines when the laser head self-levelling is off (see fig. 11). Attention! Do not mark horizontal and vertical beams in this mode -their position is incorrect.
• You can turn the appliance body manually (quickly) of using swivel bolts 11 (slowly, but precisely)
• After finishing work turn off the appliance as described above (lock 9 shall be in the position as shown in fig. 3.2 and laser beams must be off).
• It is recommended to put the appliance for long-term storage and transportation into case 16. 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 16

Maintenance / preventive measures

Cleaning the appliance

• Keep the appliance clean. Do not use caustic sub-stances 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 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 under: 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 dispos-ing as waste.
Appliance, accessories and packaging should be sorted for environment-friendly recycling

The plastic components are labelled for categorized recycling
These instructions are printed on recycled paper man-ufactured without chlorine

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

References

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

Read User Manual Online (PDF format)

Read User Manual Online (PDF format)  >>

Download This Manual (PDF format)

Download this manual  >>