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The Leica Lino L4P1 is a laser levelling instrument operating with a class 2 laser. See chapter Technical data for scope of use.
Range (depending on lighting conditions) | 15 m |
Range with laser receiver | 80 m |
Accuracy | 2 mm at 10 m |
Self-levelling range | +/- 3° |
Number of laser lines | 4 |
Number of laser dots | 1 |
Beam direction | Vertical, horizontal, up, down (see Laser classification) |
Battery types | Rechargeable Li-Ion batteries or Alkaline batteries 4 x AA, 1.5V |
Battery life Li-Ion batteries | 24 h |
Protection level | IP 54 (dust-and splash water protected) |
Tripod thread | 1/4", 5/8" |
Operating temperature | -10°C - 50°C |
Storage temperature | -25°C - 70°C |
Dimension (H x D x W) | 125 x 125 x 162 mm |
Weight (with Li-Ion batteries) | 1173 g |
The safety instructions (see Safety Instructions) and the user manual should be read through carefully before the product is used for the first time.
The person responsible for the product must ensure that all users understand these directions and adhere to them.
The symbols used have the following meanings:
Indicates a potentially hazardous situation or an unintended use which, if not avoided, will result in death or serious injury.
Indicates a potentially hazardous situation or an unintended use which, if not avoided, may result in minor injury and/or appreciable material, financial and environmental damage.
Important paragraphs which must be adhered to in practice as they enable the product to be used in a technically correct and efficient manner.
See also Levelling the instrument
In the unlocked position the instrument automatically levels itself within the specified inclination range. (See Technical data)
Turn the levelling lock in order to transport or tilt the instrument beyond the self-levelling range. When locked, the pendulum is fixed and the self-levelling function is deactivated. In this case the laser blinks every 3sec.
To be able to detect the laser lines over long distances (>15 m) or in unfavourable lighting conditions, a laser receiver can be used.
We recommend the Leica RVL80 laser receiver.
Charge Li-Ion battery
Charge the Li-Ion battery before using it for the first time. While charging, the instrument may heat up. This is normal and should not affect the instrument´s lifespan or performance. At the recommended storage temperature of -20°C to +30°C (-4°F to +86°F), batteries containing a 50% to 100% charge can be stored up to 1 year. After this storage period the batteries must be recharged.
Connecting the charger using the wrong adapter may cause serious damage to the instrument. Any damage caused by misuse is not covered by warranty. Use only Leica-approved chargers, batteries and cables. Unapproved chargers or cables can cause the battery to explode or damage the instrument.
Insert Li-Ion battery
Insert the battery-pack by pressing it down and then tilting it towards the housing as shown until it snaps in.
To ensure a reliable use, we recommend using high quality Alkaline batteries.
Insert Alkaline batteries
Insert Alkaline batteries in the battery-pack.
Insert the battery-pack
Insert the battery-pack by pressing it down and then tilting it towards the housing as shown until it snaps in.
Check if self-levelling is required and correspondingly activated. (See Levelling lock for details)
Turn adjustment knob (1) for fine adjustment of verticallaser lines.
Laser | LED | Cause | Correction |
ON | lights red | instrument has low power | Charge Li-Ion battery or change Alkaline batteries |
OFF | blinks red | Temperature alert | Cool down or heat up instrument |
blinks | blinks red | instrument is out of self-levelling range | Place the instrument almost horizontal and self-levelling will start automatically |
blinks every 3 sec | lights green | Levelling lock is activated for working without self-levelling |
Check the accuracy of your Leica Lino L4P1 regularly and particularly before important measuring tasks. Check Levelling lock before checking the accuracy.
Checking the accuracy of the levelling
Set the instrument on a tripod half-waybetween two walls(A+B) that are approx. 5 m apart. Place the lockswitch in the "Unlocked" position. Direct the instrument at wallAand switch on the instrument. Activate the horizontal laser line or laser point and markthe position of the line or the point on wall(A1). Rotate the instrument by180°and markthe horizontal laser line or the laser point in exactlythe same wayon wall(B1).
Then place the instrument at the same elevation as close as possible to wall A and again mark the horizontal laser line or the laser point on wall A (A2). Rotate the instrument by 180° again and mark the laser on wall B (B2). Measure the distances of the marked points A1-A2 and B1-B2. Calculate the difference of the two measurements.
|(A1 - A2) - (B1 - B2)| <=2 mm
If the difference does not exceed 2 mm, then the Leica Lino L4P1 is within tolerance.
Checking the accuracy of the horizontal line
Place the lock switch in the "Unlocked" position. Position the instrument approx. 5 m away from the wall. Direct the instrument at the wall and switch on. Activate the laser line and mark the intersection point of laser crosshairs on the wall. Swivel the instrument to the right and then to the left. Observe the vertical deviation of the horizontal line from the marking. If the difference does not exceed 3 mm, then the Leica Lino L4P1 is within tolerance.
Checking the accuracy of the vertical line
Place the lock switch in the "Unlocked" position. As a reference, use a plumb-bob and attach it as close as possible to an approx. 3 m high wall. Position the instrument at a distance of approx. 1.5 m from the wall at an elevation of approx. 1.5 m. Direct the instrument at the wall and switch on. Rotate the instrument and align it with the bottom of the plumb line. Now read off the maximum deviation of the laser line from the top of the plumb line. If the difference does not exceed 3 mm, then the Leica Lino L4P1 is within tolerance.
Checking the accuracy of the upper plumb point:
Set up the laser on its tripod or wall mount bracket near point A1 at a minimum distance of 1.5 m from point B1. The horizontal laser is aligned in direction 1. Mark the laser points A1 and B1 with a pin.
Checking the accuracy of the lower plumb point:
Rotate the instrument by 180° so that it points in the opposite direction 2 to direction 1. Adjust the instrument so that the laser beam hits point A1 exactly. If point B2 is no further than 2 mm away from point B1, then the Leica Lino L4P1 is within tolerance.
Never immerse the device in water. Wipe off dirt with a damp soft cloth. Never use aggressive cleaning agents or solvents. Treat the instrument with the same care that you would apply to binoculars or a camera. Dropping or violent shaking of the instrument may damage it. Check the instrument for any damage before using it. Check the levelling accuracy of the instrument regularly.
Here you can download full pdf version of manual, it may contain additional safety instructions, warranty information, FCC rules, etc.
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