LIMIT LDM 80 Manuale utente

OPERATING MANUAL

Distance Meter

Limit LDM 80

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OVERVIEW

Limit LDM 80 is a robust laser distance meter made for professional use. LDM 80 has a

working range up to 80 and a lot of different functions to help you work more efficient.

The compact size makes it easy to bring and easy to store in a pocket or bag.

FEATURES

• 80 m working range

• 4-line display

• Single and continuous measurement with calculation

• Area and Volume measurement

• Pythagorean measurement

• Staking-out function

• Delay function

• Record function

SPECIFICATIONS

Working range 0.05 m

80 m

Measuring accuracy Typically ±2 mm

Measurement unit options m/in/ft

Continuous distance measuring (tracking) Yes

Area/volume measurement Yes

Pythagorean proposition measurement Yes

Length/add/subtract measurement Yes

Min/max value Yes

Max storage 100 units

Staking-out Yes

Delay measurement Yes

End piece Yes

Bubble Yes

Automatic backlight Yes

Keys sound Yes

Laser class II

Laser type 635 nm, <1 mW

Auto laser off 20 s

Auto switch off 150 s

Power supply 2

1.5 V AAA

Battery life Up to 8000 times

Storage temperature -20°C

60°C

Working temperature 0°C

40°C

Storage humidity RH 85%

Weight (including battery) 125 g

Dimensions 118

28 mm

Note: Use a target plate to increase the measurement range during daylight or if the

target has poor reflection properties.

• Typical Tolerance: ±2 mm, when reflectivity 100% (white surface), environment light

<2000 LUX. 25°C. Tolerance is usually affected by the distance, reflectivity, and

environment light etc. It probably gets tolerance around ± (2 mm+0.2 mm/m).

SAFETY REGULATIONS

Please read the safety regulations and operation guide carefully before operating.

Please read all of the operational guide and safety regulations in this manual before

operation. Improper operations without complying with this manual could cause

damage to the device, influence on measurement result or bodily injury to the user.

The instrument is not allowed to disassemble or repair in any ways. It is forbidden to

do any illegal modification or performance change for laser emitter. Please keep it

out of reach of children and avoid using by any irrelevant personnel.

It is strictly prohibited to shoot eyes or other parts of body with the laser; it is not

allowed take the laser to shoot any objects' surface with strong reflecting.

Due to electromagnetic radiation interference to other equipment and devices,

please don't use the meter in the plane or around medical equipment, don't use it in

inflammable, explosive environment.

Discarded batteries or meter device shall not processed just like household garbage,

please handle them in line with related law and regulations.

Any quality issues or any questions on the meter, please contact local distributors or

manufacturer in time, we are ready to offer solutions for you.

DISPLAY/KEYBOARD

• Display

1. Laser on

2. Reference point

3. Maximum

4. Area, volume and pythagorean

5. Minimum

6. Continuous measuring

7. Major display

8. Record

9. Staking-out

10. Power

11. Auxiliary display

12. Unit

• Keyboard

13. Turn on/measuring

14. Addition

15. Area/volume staking-out

16. Reference point/delay measurement

17. Unit/sound

18. Subtraction

19. Pythagorean measurement

20. Save

21. Turn off/remove

BATTERY INSTALLATION

1. Battery installation and replacement

1.1 Open the battery cover on the back of device, and place battery according to correct

polarity, then close the battery cover.

1.2 Only 1.5 V AAA alkaline battery is applied to the meter.

1.3 If not used for a long time, please take out the battery to avoid battery corrosion to

meter body.

START THE INSTRUMENT & MENU SETTING

1. Turn on/off the instrument

Under off status, press button . device and laser get starting simultaneously and stand

by for measurement.

Under on status, long press button for 3 seconds to turn the device off. The device

can also be shut off without any operation for 150 seconds.

2. Sound on/off

Long press button to turn on or off the buzzer.

3. Unit setting

Short press button , reset current measurement unit, the default unit is: 0.000 m.

There are 6 units for selection:

Length Area Volume

1 0.000 m 0.000 m20.000 m3

20.00 m 0.00 m20.00 m3

30.0 in 0.00 ft20.00 ft3

4 0.00 ft 0.00 ft20.00 ft3

5 0 1/16 in 0.00 ft20.00 ft3

6 0'00"1/16 0.00 ft20.00 ft3

4. Reference point

Press key to change the reference point. There are four reference points: top, screw

at the backside, bottom and the end piece.

LENGTH MEASUREMENT & CALCULATION

1. Single distance measurement

Turn on the laser beam by short press of the button under measuring mode; Press the

button again for single measurement of length, then the measured results displayed

in the major display area.

2. Continuous measurement

Long press button funder measuring mode and enter into continuous measuring

mode. Maximum and Minimum value show on the LCD.

Present result displays in major display area. Short press button to exit continuous

measuring mode.

3. Area measurement

Press button , shows on the screen. One of the side of rectangle blinking on the

display, please follow the below instructions for area measuring:

Press once for length.

Press again for width.

The device calculates and shows the result in the major display area.

Press , clear off the result and measuring again if necessary.

4. Volume measurement

Press button twice to enter volume measurement mode. A will shows on the top

of screen. Please follow the below Instruction for volume measuring:

Press for Length.

Press again for Width.

Press thirdly for height.

The device calculates and shows the result in the major display area.

Press , clear off the result and measuring again if necessary.

5. Pythagorean measurement

A B

C D

There are four Pythagoras modes in case that user gets difficults to reach the target.

Please press button to select the mode.

A. Calculate the second leg by measuring the hypotenuse and another leg. Short press

to enter Pythagoras mode, the hypotenuse of blinking.

Press , measure the length of hypotenuse (a).

Press , measure the length of one leg (b).

Device calculates the length of another leg (x).

B. Calculate the hypotenuse by measuring the length of two legs. Shor press twice,

when one leg of blinking.

Press , measure the length of one leg (a).

Press , measure the length of another leg (b).

Device calculates the length of hypotenuse (x).

C. Press three times till the one hypotenuse of blinking on the screen.

Press , measure the length of one side (a).

Press , measure the length of the median line (b).

Press , measure the length of another side (c).

Device calculates the length of the leg in full line (x).

D. Press four times till one hypotenuse of blinking on the screen.

Press , measure the length of one hypotenuse (a).

Press measure the length of another hypotenuse (b).

Press measure the length of one leg (c).

Device calculates the length of the leg in full line (x).

Legs must be shorter than hypotenuse, or there will be "err" shows on screen. In order to

guarantee the accuracy, please make sure all measurements are start from the same point.

6. Addition/subtraction

The device can be used for length addition and subtraction.

Press , "+" shows in the major display area, entering cumulation mode. Value of last

measurement and the result of cumulation will be showed on the screen.

Press , "-" shows in the major display area, entering regressive mode. Value of last

measurement and the result of difference will be showed on the screen.

Not only distance but also area and volume can be added or substracted. For example:

Area addition: Measure the first area, get PIC 1, then press ; Measure the second area,

get PIC 2, there is a"+" on the left corner of the screen; At last, press get the addition

result as PIC 3.

PIC 1 PIC 2 PIC 3

Area sustraction: The same steps as above.

STAKING-OUT FUNCTION

Long press , the device switch to staking-out mode. As showed in the below picture,

the user can set two difference value a and b; User can adjust these two values by pressing

or . Long press or will make you get a large gap of the value when adjust a

or b. Press after setting the values, the device enter staking-out mode. User can get

instructions by sound and icon.

means the device need to go back, means the device need to go forward. When the

device get very near to the point, the device will show .

DELAY MEASUREMENT

Press , a second number shows in the screen as below picture. User can press or to

adjust the time. The max is 60 s, min is 3 s. Press to turn on the delay measuring function,

after certain the delaying time. If press while the laser is on, this function will be turned

on at once.

RECORD FUNCTION

Long press button for 3 s to record your measuring result under measuring mode.

lt can also record the result under Area, Volume and Pythagoras mode. All the calculating

records can be saved by the device.

1. Read/delete the record

Short press button , read the records by press button and . Short press to

delete recent record and long press to clear up all the records.

TIPS

You may get some warning information as below:

Info

message Cause Solution

Err1 Received signal is too weak. Chose the surface with stronger

reflectance. Use the reflecting plate.

Err2 Received signal is too strong. Chose the surface with weaker

reflectance. Use the reflecting plate.

Err3 Low battery voltage. Change the power supply.

Err4 The working temperature is out of

working range. Use the device in the specified

temperature.

Err5 Pythagoras measuring error. Re-measure and ensure that

Hypotenuse is bigger than Cathetus.

Err6 Record damaged. Please contact the distributer.

INSTRUMENT MAINTENANCE

• The meter should not be stored in high temperature and strong humidity environment

for long time; it is not used very often, please take out the battery and place the meter

in the allocated potable bag and store in cool and dry place.

• Please keep the device surface cleaning. Wet soft cloth is applied to clean dust, but

erosion liquid is never allowed to use for the meter maintenance. Laser output window

and its focus lens can be maintained according to maintenance procedures for optical

device.

DELIVERY PACKAGE

Please check if the accessories are completed according to the below list.

NO. Item Unit Qty

I Laser distance meter pc 1

2Power supply AAA pc 2

3 User' s manual pc 1

4 Portable bag pc 1

5 Hand strap pc 1

ÖVERSIKT

Limit LDM 80 är en robust laseravståndsmätare för yrkesanvändning. Den har mätområde

upp till 80 meter, många funktioner som underlättar arbetet och är lätt att bära med sig

och förvara i en ficka eller väska. Tack vare dess lilla storlek är den lätt att bära med sig

och förvara i en ficka eller väska.

EGENSKAPER

• Mätområde: 80 meter

• 4-radersdisplay

• Enkelmätning och kontinuerlig mätning med beräkning

• Areamätning och volymmätning

• Vinkelmätning

• Utsättningsfunktion

• Fördröjningsfunktion

• Funktion för sparande av mätresultat

SPECIFIKATIONER

Mätområde 0,05 m

80 m

Noggrannhet Typiskt ±2 mm

Mätenheter meter/tum/fot

Kontinuerlig avståndsmätning Ja

Area-/volymmätning Ja

Vinkelmätning Ja

Längdmätning/addition (+) och subtraktion (−) Ja

Min./max. värde Ja

Max. lagring 100 poster

Utsättning Ja

Fördröjd mätning Ja

Bakstycke Ja

Vattenpass Ja

Automatisk bakgrundsbelysning Ja

Knappljud Ja

Laserklass II

Lasertyp 635 nm, <1 mW

Automatisk avstängning av laser 20 sekunder

Automatisk avstängning av enhet 150 sekunder

Batterier 2

1,5 V AAA

Batteriets livslängd Upp till 8 000 mätningar

Förvaringstemperatur -20°C till 60°C

Drifttemperatur 0°C till 40°C

Förvaringsfuktighet 85% relativ luftfuktighet

Vikt (inklusive batteri) 125 g

Mått 118

28 mm

OBS! Använd målplatta för att förbättra mätområdet vid mätning i dagsljus eller om

mätobjektet har dåliga reflexionsegenskaper.

• Typisk tolerans: ±2 mm (förutsatt 100% reflektionsförmåga (vit yta), omgivningsljus

< 2000 lux (och vid 25°C). Toleransen påverkas vanligtvis av till exempel avstånd,

reflektionsförmåga och omgivningsljus (vanligtvis ±2 mm, +0,2 mm/m).

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