LM120A - Télécommande Uni-T - Notice d'utilisation et mode d'emploi gratuit

Type de produit	Télémètre laser
Marque	Uni-T
Modèle	LM120A
Portée de mesure	120 mètres
Précision de mesure	±(2 mm + 5 × 10⁻⁵ × D)
Unités de mesure	m, ft, in (6 options)
Fonctions de mesure	Simple, continue, surface, volume, Pythagore, addition/soustraction
Stockage des données	99 groupes
Alimentation	2 piles AAA 1,5 V
Autonomie des piles	Jusqu'à 8000 mesures
Dimensions (L × l × H)	112 × 50 × 25 mm
Poids	Environ 100 g (avec piles)
Classe laser	Classe 2
Type de laser	630–670 nm, < 1 mW
Température de fonctionnement	0 °C à 40 °C
Température de stockage	-20 °C à 60 °C
Humidité de stockage	20 % à 80 % HR
Extinction automatique	Environ 150 s d'inactivité
Arrêt automatique du laser	20 s (mesure simple)
Étanchéité	Non spécifié, éviter l'humidité
Entretien	Nettoyer avec un chiffon doux humide, ne pas utiliser de détergents agressifs
Accessoires inclus	Appareil, sac de transport, piles AAA, manuel, boîte cadeau
Garantie	Contactez le revendeur ou le fabricant
Réparabilité	Ne pas démonter ou réparer sans autorisation

FOIRE AUX QUESTIONS - LM120A Uni-T

Comment allumer et éteindre le télémètre LM120A ?

Pour allumer, appuyez sur la touche _DIST. Pour éteindre, maintenez enfoncée la touche CLEAR OFF pendant 3 secondes. L'appareil s'éteint automatiquement après 150 secondes d'inactivité.

Comment changer l'unité de mesure ?

Maintenez enfoncée la touche 12 pour entrer dans les réglages d'unité. Vous pouvez choisir parmi 6 options : m, ft, in, etc. Validez en appuyant à nouveau sur la touche.

Comment effectuer une mesure de surface ?

Appuyez une fois sur FUNC pour entrer en mode surface. Mesurez la longueur, puis la largeur. La surface s'affiche automatiquement sur l'écran principal.

Comment utiliser la fonction d'addition/soustraction ?

Après une mesure, appuyez sur + pour additionner ou sur - pour soustraire. Effectuez la mesure suivante. Le résultat s'affiche. Cette fonction fonctionne aussi pour les surfaces et volumes.

Que faire si l'écran affiche 'Err' ?

Le code 'Err' indique une distance hors de portée. Vérifiez que vous utilisez l'appareil dans les conditions spécifiées (portée max 120 m) et que la cible est bien réfléchissante.

Comment calibrer l'appareil ?

Éteignez l'appareil, puis maintenez ^CLEAR off et appuyez brièvement sur ^A. Lorsque 'CRL' s'affiche, utilisez + ou ↗ pour ajuster la calibration (de -9 à +9 mm). Appuyez sur ⚠️ pour enregistrer.

Quel type de piles utiliser ?

Utilisez uniquement des piles alcalines AAA de 1,5 V. Insérez-les en respectant la polarité indiquée dans le compartiment. Retirez les piles si l'appareil reste inutilisé longtemps.

Comment nettoyer le télémètre ?

Utilisez un chiffon doux légèrement humide pour nettoyer l'extérieur. N'utilisez pas de solvants ou de détergents agressifs. Pour la fenêtre laser, suivez les méthodes de nettoyage des dispositifs optiques.

Quelles sont les précautions de sécurité ?

Ne regardez pas directement le faisceau laser. Évitez d'irradier les yeux ou le corps. N'utilisez pas l'appareil à proximité d'avions, d'équipements médicaux ou dans des environnements inflammables/explosifs.

Comment consulter les données stockées ?

Appuyez brièvement sur pour accéder aux données. Utilisez + et → pour naviguer. Pour supprimer une entrée, appuyez sur CLEAR OFF ; pour tout effacer, maintenez enfoncé CLEAR OFF.

MODE D'EMPLOI LM120A Uni-T

LM50A/LM70A/LM100A/LM120A Laser Distance Meter User Manual

Safety Information

Before using the meter for the first time, please read the safety information and operating instructions carefully.

• Use the meter only as specified in this manual. Otherwise, it may cause damage to the meter, affect measurement accuracy and result in personal injury.
• Do not disassemble or repair the meter without authorization. Do not refit or change the performance of the laser transmitter illegally. Please keep the meter properly, do not place it where children can reach it, and avoid use by irrelevant personnel.
• Do not irradiate the laser at eyes and other parts of the body, and on the surface of highly reflective objects.
  ● The electromagnetic radiation of the meter may cause interference to other equipment. Please do not use the meter near airplanes, medical equipment or in flammable and explosive environments.
• The replaced batteries and discarded meters cannot be disposed of together with domestic garbage. Please dispose of them in accordance with relevant national or local laws and regulations.
• If the meter has any quality problems, or if users have any questions about the use of the meter, please contact the local dealer or manufacturer in time.

Product Introduction

Display

Battery status Data storage Laser indication Max Length measurement Area/volume/triangle measurement Min Secondary display Primary display Keypad On/measure Subtract/sound Add Area/volume/triangle Measurement reference/ unit selection Off/clear Log

Batteries

1. Open the battery door on the back of the meter, install the battery according to the polarity instructions, and close the battery door.
2. The meter can only use 1.5V AAA alkaline batteries.
3. When the meter is not used for a long time, please take out the battery to prevent it from corroding the meter's main body.

Power On and Function Settings

1. Power On/Off

In the shutdown state, press _DIST , the meter and the laser will be started at the same time.

In the power-on state, press and hold CLEAR OFF for 3 seconds to turn off the meter. If no operation is performed within 150 seconds, the meter will automatically shut down.

2. Unit Settings

Long press 12 to enter the unit setting state and the current unit can be reset. The default unit of the meter is 0.000m. There are 6 optional units.

Measurement units:

	Length	Area	Volume
1	0.000 m	0.000 m^2	0.000 m^3
2	0.00 m	0.00 m^2	0.00 m^3
3	0.0 in	0.00ft^2	0.00ft^3
4	0 1/16 in	0.00ft^2	0.00ft^3
5	0'00" 1/16	0.00ft^2	0.00ft^3
6	0.00 ft	0.00ft^2	0.00ft^3

3. Measurement Reference Settings

Short press E ^2 to measure from front or end. The default setting is end measurement.

4. Backlight

The backlight is automatically turned on and off. It will turn on for 15 seconds when any button is pressed. The backlight will automatically turn off if there is no operation after 15 seconds to save power.

5. Sound

Long press → to turn on or off the sound of the beeper.

6. Self-Calibration

Self-calibration function can ensure the measurement accuracy. Calibration method: In the shutdown state, press and hold ^CLEAR off, and then short press ^A to turn on the meter. When the screen shows 'CRL' with a flashing number at the bottom, the meter enters the self-calibration mode. At this time, users can press + _4 to calibrate values according to the error of the meter.

Calibration range: -9\~9mm

Examples: The actual distance is 3.780m.
If the measured value is 3.778m, which is 2mm smaller than the actual value, press + to increase the calibration value by 2mm.
If the measured value is 3.783m, which is 3mm larger than the actual value, press ↗ to lower the calibration value by 3mm.
After adjustment, press ⚠️ to save the calibration results.

Measurement Modes

1. Single Measurement

While the meter is on, press to transmit the laser. Press again to make the distance measurement. The measurement results will show on the primary display.

2. Continuous Measurement

While the meter is on, long press to enter the continuous measurement state. The maximum and minimum values during the measurement will show on the secondary display. The measurement results will show on the primary display. Short press or to exit the continuous measurement.

3. Area Measurement

Press FUNC 1x. The □ symbol will appear on the display and one side of the rectangle will flash.

Press △ to make the first measurement (length).

Press ▲ again to make the second measurement (width).

The meter will automatically calculate the area, and the result will show on the primary display. The length and width will show on the secondary display. During the measurement process, press to clear the measurement result and re-measure.

Press to exit the area measurement and enter the length measurement mode.

4. Volume Measurement

Press FUNC 2x. The ☐ symbol will appear on the display.

Press ⚠️ to make the first measurement (length).

Press again to make the second measurement (width).

Press again to make the third measurement (height).

The meter will automatically calculate the volume, and the result will show on the primary display. The length, width and height will show on the secondary display.

During the measurement process, press to clear the measurement result and re-measure.

Press to exit the volume measurement and enter the length measurement mode.

5. Indirect Measurement

The meter has four modes that use the Pythagorean theorem to measure the distance of one side of a triangle, which is convenient for users to perform indirect measurement in a complex environment.

(1) Measure the hypotenuse and base-side, indirectly measure the height

Press FUNC 3x.

Press to measure the length of the hypotenuse (a).

Press ⚠️ to measure the length of the base-side (b).

The meter will automatically calculate the length of the leg (x).

(2) Measure the leg and base-side, indirectly measure the hypotenuse Press FUNC 4x.

Press ⚠️ to measure the length of the leg (a).

Press ⚠️ to measure the length of the base-side (b).

The meter will automatically calculate the length of the hypotenuse (x).

(3) Press FUNC 5x, the hypotenuse flashes

Press ⚠️ to measure the length of the hypotenuse (a).

Press ⚠ to measure the length of another hypotenuse (b).

Press ⚠️ to measure the length of the base-side ©.

The meter will automatically calculate the length of the leg (x).

(4) Press FUNC 6x, the hypotenuse flashes

Press ⚠️ to measure the length of the hypotenuse (a).

Press ⚠️ to measure the length of the base-side (b).

Press ⚠️ to measure the length of another hypotenuse ©.

The meter will automatically calculate the length of the leg (x).

In the Pythagorean measurement mode, the length of the leg must be less than the length of the hypotenuse; otherwise the meter will display an error signal prompt. In order to ensure the measurement accuracy, users should make sure to measure from the same starting point and in the order of hypotenuse and leg.

6. Addition/Subtraction

The single distance measurement values can be added or subtracted. After getting the result when taking a single distance measurement, press + to enter the addition/subtraction mode.

Short press +, the "+" symbol will show on the primary display, and then it will enter the addition mode. The addition value of the last and the current measurement values will show on the display.

Short press , the "-" symbol will show on the primary display, and then it will enter the subtraction mode. The subtraction value of the last and the current measurement values will show on the display.

Not only the distance can be added and subtracted, but also the area and the volume.

Area addition: Measure the first area and get the result, as shown in Figure 1 below. Then press to measure the second area and get the result, as shown in Figure 2 below, and a plus sign will be displayed in the lower left corner. Finally, press to get the result of adding these two areas, as shown in Figure 3. The addition and subtraction of volume is similar to it.

Figure 1

Figure 2

Figure 3

7. Data Storage

If the current data is valid when measuring, press and hold 📄 for 3 seconds, and the data will be automatically stored in the meter memory. In the area, volume and indirect measurement modes, the data can also be stored after all the tests are over. At this time, the meter will store the complete measurement record under this mode.

8. View/Delete Data

Short press 📄 to query the stored data. Press + to scroll forwards, and press → to scroll backwards. When viewing data, short press CLEAR OFF to delete the current record, and long press CLEAR OFF to delete all records. Press 📄 or ▲ to exit.

Error Codes

Code	Cause	Resolution
Err	Out of distance measurement range	Use the meter in designated environments.
Err1	Signal too weak	Measure the target point with strong reflection ability.
Err2	Signal too strong	Measure the target point with weak reflection ability.
Err3	Battery power too low	Replace batteries.
Err4	Out of operating temperature range	Use the meter within the range.
Err5	Pythagorean measurement error	Re-measure to ensure that the hypotenuse is longer than the leg.

Specifications

Items	LM50A	LM70A	LM100A	LM120A
Measurement range	50m	70m	100m	120m
Measurement accuracy	±(2mm+5*10-5D)
Continuous measurement	✓
Area/volume measurement	✓
Pythagorean measurement	✓
Addition/subtraction	✓
Area/volume addition/subtraction	✓
Max/min	✓
Self-calibration	✓
Laser class	Class 2
Laser type	Class 2 630-670nm, <1mW
Data storage	99 groups
Auto laser off	20s (single measurement)
Auto power off	About 150s
Battery life	Up to 8000 measurements
Sound prompt	✓
Storage temperature	-20°C~60°C
Operating temperature	0°C~40°C
Storage humidity	20%~80%RH
Batteries	1.5V 2xAAA
Product size	112x50x25mm

* "d" means actual distance.
** Under harsh environments, such as excessive sunlight and ambient temperature fluctuations, weak reflection on reflective surfaces, and insufficient battery power, the measurement results will have errors. At this time, using the target reflector can improve the measurement accuracy.

ASER RADIATION

DO NOT STARE INTO BEAM

CLASS 2 CONSUMER LASER PRODUCT

compliance with IEC/EN 60825-1, EN 50689.

UNI-T Complies with 21 CFR 1040. 19 and 1040. 11 except for conformance with IEC 60825-1 Ed. 3. as described in Laser Notice No. 66, dated May 8, 2019. IEC 60825-1:2014 EN 60825-1:2014+A11.2021 EN 50689. 2021 Consumer laser product MAXIMUM OUTPUT<1mW WAVELENGTH 630~670nm Made in China

Maintenance

Do not place the meter in a high temperature and humidity environment for a long time. When not using the meter for a long time, please take out the battery and put the meter in the carrying bag, and store it in a cool and dry place.

Remove dirt with a moist, soft cloth. Do not use aggressive detergents or solutions. The laser window and focusing lens can be wiped according to the method of wiping the optical device.

Packing List

All accessories are shown in the table below.

Items	Accessories	Quantity
1	Meter	1
2	Carrying bag	1
3	AAA batteries	2
4	User manual	1
5	Gift box	1

UNI-T®

UNI-TREND TECHNOLOGY (CHINA) CO., LTD.

No. 6, Gong Ye Bei 1st Road,

Songshan Lake National High-Tech Industrial

Development Zone, Dongguan City,

Guangdong Province, China