Major tech MT145 Bedienungsanleitung

INSTRUCTION MANUAL

20M LASER

DISTANCE METER

MT145

Contents Page no

1. Safety Instruction .............................................................................4

1.1. Permitted Use .........................................................................4

1.2. Prohibited Use ........................................................................4

1.3. Laser Classification ..................................................................4

2. Description ......................................................................................5

2.1. Meter Description ....................................................................5

2.2. Symbols Used on LCD Display ...................................................6

3. Initial Operation and Setting ...............................................................6

3.1. Inserting/replacing Batteries ....................................................6

3.2. Switching On and Off ...............................................................7

3.3. Reference Level Setting ............................................................7

3.4. Distance Unit Setting For Instrument .........................................7

4. Measuring ........................................................................................7

4.1. Single Distance Measurement ...................................................7

4.2. Continuous Measurement (Tracking) & Min Measurement.............8

4.3. Bluetooth Function ..................................................................8

5. Technical Data ..................................................................................9

6. Troubleshooting-Causes and Corrective Measures ...............................10

7. Measuring Condition .......................................................................10

4.1. Measuring Range ..................................................................10

4.2. Target Surface.......................................................................10

4.3. Care .....................................................................................10

1. Safety Instruction

1.1. Permitted Use

Measuring distances

1.2. Prohibited Use

• Using the instrument without instruction.

• Using outside the stated limits.

• Deactivation of safety systems and removal of explanatory and hazard

labels.

• Opening of the equipment by using tools (screwdrivers, etc.), as far as

not specifically permitted for certain cases.

• Carrying out modification or conversion of the product.

• Use of accessories from other manufacturers without the express

approved.

• Deliberate or irresponsible behavior on scaffolding, when using ladders,

when measuring near machines which are running, or near parts of

machines or installations which are unprotected.

• Aiming directly into the sun.

• Inadequate safeguards at the surveying site (e.g.when measuring on

roads, construction sites, etc).

1.3. Laser Classification

• This produces a visible laser beam which emerges from the front of the

instrument.

• Laser Class 2 products: Do not stare into the laser beam or direct it

towards other people unnecessarily, protect the eye by avoiding the

laser.

WARNING: Looking directly into the beam with optical aids

(e.g.binoculars, telescopes) can be harmful.

CAUTION: Looking into the laser beam may be hazardous to the

eyes.

Precautions: Do not look into the laser beam, make sure the laser is

aimed above or below eye level.

Precautions: Do not look directly into the beam with optical aids.

2. DESCRIPTION

2.1. Meter Description

1 - Laser Receiving Lens

2 - Laser Emitter

3 - LCD Display

4 - ON/MEAS Button

5 - Label

6 - Triangular Bracket Fixed Hole

7 - Battery Cover

8 - Lanyard Hole

Potential danger. Indicates the user must refer to the manual

for important safety information.

Indicates hazardous voltages may be present.

Equipment is protected by double or reinforced insulation.

Indicates the terminal(s)so marked must not be connected

to a circuit where the voltage with respect to earth ground

exceeds the maximum safety rating of the meter.

MAX

1.3. INTERNATIONAL SAFETY SYMBOLS

The measurement category (CAT) rating and voltage rating is determined

by a combination of the meter, test probes and any accessories connected

to the meter and test probes. The combination rating is the LOWEST of

any individual component.

2.2. Symbols Used on LCD Display

1 - Laser Active

2 - Reference Level (Rear)

3 - Intermediate Line

4 - Summary Line

5 - Bluetooth

6 - Battery

3. INITIAL OPERATION AND SETTING

3.1. Inserting/Replacing Batteries

1. Remove battery compartment lid.

2. Insert batteries, observing correct polarity.

3. Close the battery compartment again.

• Replace the batteries when the symbol “ ” flashes permanently in

the display.

• Use alkaline batteries only.

• Remove the batteries before any long period of non-use to avoid the

danger of corrosion.

3.2. Switching On and Off

• Press the ON/MEAS Button to switch the instrument and laser on.

• Press and hold the ON/MEAS Button for 3 seconds to switch off the

instrument.

• The instrument switches off automatically after three minutes of

inactivity.

3.3. Reference Level Setting

The default reference setting is from the rear of the instrument.

3.4. Distance Unit Setting For Instrument

• When switching on, press and hold the ON/MEAS Button longer until the

screen display Unit icon and switch “m” or “ft-in” unit.

• The following unit can be set:

4. MEASURING

4.1. Single Distance Measurement

• Press the ON/MEAS Button to activate the laser.

• Press the ON/MEAS Button again to trigger the distance measurement,

the measured value is displayed immediately.

0.000m 0.000m² 0.000m³

0’00”1/16 0.000ft² 0.000ft³

Distance Area Volume

4.2. Continuous Measurement (Tracking) & Min Measurement

• The continuous measurement function (Tracking) is used for the

transferring of measurements, e.g., from construction plans.

• In continuous measurement mode, the measuring tool can be moved to

the target, whereby the measured value is updated approx. every 0.5

seconds in the third line, the corresponding minimum value is displayed

dynamically in the first line.

• As an example, the user can move from a wall to the required distance,

while the actual distance can be read continuously.

• For continuous measurement, hold down the ON/MEAS Button will

start the continuous measurement, and press the ON/MEAS Button

again to stop the function, the function is terminated automatically after

continuous measurement of 100 samples.

• The MIN data will display in lines 1.

4.3. Bluetooth Function

• Bluetooth function can transfer measurement data directly to mobile

phone by Meterbox APP.

• This APP is available in the Apple App store or Google play.

• Whilst the first connection between the Phone/PC and the Laser

distance meter is being established, a prompt for the Pin-code of the

instrument may be displayed, in this case, enter the code “0000” into

your Phone/PC.

Function Range

5. TECHNICAL DATA

Range 0.05 to 20m (0.2in to 66ft)*

Measuring accuracy up to 10m Typically: ±1.5 mm(1/16 in)**

(2σ, standard deviation)

Measuring Units m, ft’, in”

Laser Class Class II

Laser Type 650nm, <1mW

Smallest Unit Displayed 1mm

Continuous Measurement *

Min Measurement *

Display Illumination *

and Two-Line Display

Tripod Thread *

Beep Indication *

Bluetooth 4.0 EDR *

Range of Bluetooth 10m

Bluetooth with Apple *

iPod/iPhone support

Bluetooth with SPP support *

Dust Protect/Splash Proof IP54

Operating Temperature 0 to 40°C (32 to 104°F)

Storage Temperature -10 to 60°C (14 to 140°F)

Batteries Type “AAA” 2 x 1.5V

Battery Life Up to 4,000 measurements

Auto Laser Switch-Off After 30 seconds

Auto Instrument Switch-Off After 3min

Dimension 100 x 36 x 23mm

Weight 80g

* Use a target plate to increase the measurement range during daylight

or if the target has poor reflection properties 10m (33 ft).

** In unfavourable use variations, the deviation in favourable conditions

(good target surface properties, room temperature) up to 1 conditions,

such as intense sunshine, poorly reflecting target surface or high

temperature over distances above 10m (33ft) can increase by

±0.15mm/m (±0.0018 in/ft).

1010

6. TROUBLESHOOTING-CAUSES AND CORRECTIVE MEASURES

Code Corrective Measure

208 Received signal too weak, Use target plate

measurement time too long.

Distance out of range.

252 Temperature too high Cool down instrument

253 Temperature too low Warm up instrument

255 Hardware error Switch ON/OFF the device

several times, if the symbol

still appears, please contact

your dealer for assistance.

Cause

7. Measuring Condition

7.1. Measuring Range

• The range is limited as per Technical Specifications.

• At night or dusk and if the target is in shadow the measuring range

without target plate is increased.

• Use a target plate to increase the measurement range during daylight or

if the target has poor reflection properties.

7.2. Target Surfaces

• Measuring errors can occur when measuring toward colorless liquids

(e.g. water) or dust free glass, styrofoam or similar semi-permeable

surfaces.

• Aiming at high gloss surfaces may deflect the laser beam and lead to

measurement errors.

• Against non-reflective and dark surfaces the measuring time may

increase.

7.3. Care

• Do not immerse the instrument in water.

• Wipe off dirt with a damp, soft cloth.

• Do not use aggressive cleaning agents or solutions.

• Handle the instrument as you would a telescope or camera.

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