WANLUTECH LT-40 Mini Laser Distance Meter Instruction Manual

1. Pengenalan

Thank you for choosing the WANLUTECH LT-40 Mini Laser Distance Meter. This compact and versatile tool is designed for accurate distance, area, and volume measurements, featuring multiple measurement modes and a clear LCD backlight. This manual provides essential information for safe and effective use of your device.

2. Produk Lebihview

2.1 Ciri-ciri Utama

Multiple Measurement Modes: Includes single, continuous, area, volume, and Pythagorean measurements.
Compact Design: Small size (5.6 x 1.2 x 2.1 cm) and lightweight (28g) with an aluminum alloy housing for portability.
Long Measuring Distance: Measures up to 131ft (40m).
USB Charging: Convenient micro-USB charging port.
LCD Backlight: Ensures clear data readability in various lighting conditions.
Selectable Reference Points: Choose between front or rear reference for measurements.
Unit Conversion: Switch between meters (m), inches (in), and feet (ft).

2.2 Device Components and Display

The following diagram illustrates the main components and display indicators of the LT-40 Laser Distance Meter.

Diagram showing the WANLUTECH LT-40 laser measure with labels for its buttons and display features, including single measurement, area measurement, front/back benchmark switch, continuous measurement, volumetric measurement, functions switch, Pythagorean measurement, power on, one key measurement, and power off/backlit button.

Figure 1: LT-40 Device Layout and Function Buttons

Terperinci view of the WANLUTECH LT-40 laser measure display, indicating laser mode, front and rear reference points, battery indicator, laser strength, maximum value, minimum value, and current measurement value. Dimensions of 56mm length and 22mm width are also shown.

Figure 2: LT-40 Display Indicators and Dimensions

Butang Utama: Used for power on, single measurement, and confirming selections.
F/R Button: Functions switch / Front-Rear reference switch.
Power Off / Backlit Button: Turns the device off and controls the LCD backlight.
paparan: Shows measurement values, units, battery status, laser strength, and measurement mode icons.

3. Persediaan

3.1 Mengecas Peranti

The LT-40 features a built-in Lithium-Ion battery and is rechargeable via a micro-USB port.

Connect the provided micro-USB cable to the device's charging port.
Sambungkan hujung kabel USB yang satu lagi ke penyesuai kuasa USB standard (tidak disertakan) atau port USB komputer.
Penunjuk bateri pada paparan akan menunjukkan status pengecasan. Cas sepenuhnya sebelum penggunaan pertama.

Image showing the WANLUTECH LT-40 laser measure connected via a micro-USB cable for charging, with a battery icon indicating USB charging.

Rajah 3: Port Pengecasan USB

3.2 Powering On/Off and Backlight

Hidupkan kuasa: Tekan sebentar butang utama.
Matikan: Long press the Power Off / Backlit button.
Kawalan Lampu Latar: Short press the Power Off / Backlit button to toggle the LCD backlight on or off.

Close-up of the WANLUTECH LT-40 laser measure's LCD screen with backlight activated, displaying measurement data clearly in a dark environment.

Figure 4: LCD Backlight in Operation

3.3 Setting Measurement Reference Point

The device allows you to choose the measurement reference point:

Front Reference: Measurements are taken from the front edge of the device. The device's length is not included in the result.
Rear Reference: Measurements are taken from the rear edge of the device. The device's length is included in the result.

To switch between reference points, short press the F/R button. An icon on the display will indicate the currently selected reference point.

3.4 Menukar Unit Pengukuran

The LT-40 supports meters (m), inches (in), and feet (ft).

To cycle through units, long press the F/R button. The unit displayed on the screen will change accordingly.

4. Operation - Measurement Modes

The LT-40 offers various measurement functions. To switch between modes, short press the F/R button until the desired mode icon appears on the display.

4.1 Pengukuran Tunggal

Measures the direct distance between the device and a target.

Hidupkan peranti.
Point the laser at the desired target.
Short press the main button to emit the laser.
Short press the main button again to take the measurement. The result will be displayed instantly.

Illustration of single distance measurement using the WANLUTECH LT-40 laser measure, showing a single laser line extending to a wall.

Figure 5: Single Measurement

4.2 Pengukuran Berterusan (Penjejakan)

Measures distances continuously as the device is moved, displaying real-time maximum and minimum values.

Hidupkan peranti.
Long press the main button for approximately 1 second to enter continuous measurement mode.
Move the device slowly. The display will update with real-time measurements, showing MAX and MIN values.
Short press the main button again to exit continuous measurement mode.

Illustration of continuous measurement using the WANLUTECH LT-40 laser measure, showing multiple laser points as the device is moved.

Figure 6: Continuous Measurement

4.3 Pengukuran Kawasan

Calculates the area of a rectangular surface by measuring two sides.

Select the Area Measurement mode (icon: rectangle).
Short press the main button to measure the first side (e.g., length).
Short press the main button again to measure the second side (e.g., width).
Peranti akan mengira dan memaparkan kawasan secara automatik.

Illustration of area measurement using the WANLUTECH LT-40 laser measure, showing two measurements (length and width) used to calculate a shaded area.

Figure 7: Area Measurement

4.4 Pengukuran Isipadu

Mengira isipadu ruang dengan mengukur tiga dimensi.

Select the Volume Measurement mode (icon: cube).
Short press the main button to measure the first dimension (e.g., length).
Short press the main button again to measure the second dimension (e.g., width).
Short press the main button a third time to measure the third dimension (e.g., height).
Peranti akan mengira dan memaparkan volum secara automatik.

Illustration of volume measurement using the WANLUTECH LT-40 laser measure, showing three measurements (length, width, height) used to calculate a shaded volume.

Figure 8: Volume Measurement

4.5 Pengukuran Pythagoras

Uses the Pythagorean theorem to calculate indirect distances.

Diagram illustrating the Primary Pythagorean mode on the WANLUTECH LT-40 laser measure, showing how two measurements (hypotenuse and one leg) are used to calculate the other leg of a right triangle. Also shows Secondary Pythagorean modes for data addition and subtraction.

Figure 9: Pythagorean Measurement Modes

4.5.1 Primary Pythagorean Mode (Indirect Height)

Calculates the height of an object (side 'a') by measuring the hypotenuse ('c') and the base ('b').

Select the Primary Pythagorean mode (icon: right triangle with 'a' unknown).
Short press the main button to measure the hypotenuse (data 'c').
Short press the main button again to measure the base (data 'b').
The device will automatically calculate and display the height (data 'a').

4.5.2 Secondary Pythagorean Mode (Data Addition)

Calculates a total height (a1+a2) by measuring two hypotenuses and two bases.

Select the Secondary Pythagorean mode (data addition) (icon: two right triangles stacked).
Short press the main button to measure the first hypotenuse (data 'c').
Short press the main button again to measure the first base (data 'b').
Short press the main button a third time to measure the second hypotenuse (data 'e').
The device will automatically calculate and display the total height (a1+a2).

4.5.3 Secondary Pythagorean Mode (Data Subtraction)

Calculates a height difference (a) by measuring two hypotenuses and two bases.

Select the Secondary Pythagorean mode (data subtraction) (icon: two right triangles overlapping).
Short press the main button to measure the first hypotenuse (data 'e').
Short press the main button again to measure the first base (data 'c').
Short press the main button a third time to measure the second base (data 'b').
The device will automatically calculate and display the height difference (data 'a').

5. Penyelenggaraan

5.1 Pembersihan

Lap peranti dengan lembut, damp kain. Jangan gunakan pembersih atau pelarut yang melelas.
Keep the laser lens clean and free of dust or debris to ensure accurate measurements. Use a soft, lint-free cloth for the lens.

5.2 Penyimpanan

Simpan peranti di tempat yang sejuk dan kering, jauh dari cahaya matahari langsung dan suhu yang melampau.
Jika menyimpan untuk tempoh yang lama, pastikan bateri dicas separa (sekitar 50%) untuk memanjangkan hayat bateri.

6. Penyelesaian masalah

If you encounter issues with your LT-40, please refer to the following common problems and solutions:

Masalah	Kemungkinan Punca	Penyelesaian
Peranti tidak dihidupkan	Bateri lemah atau tiada cas	Cas peranti menggunakan kabel USB.
Pengukuran yang tidak tepat	Laser lens is dirty; Unstable measurement surface; Incorrect reference point selected; Strong light interference.	Clean the laser lens; Ensure a stable surface; Verify the front/rear reference setting; Measure in a shaded area or use a target plate in bright conditions.
Paparan malap atau tidak boleh dibaca	Backlight is off; Low battery.	Short press the Power Off / Backlit button to turn on the backlight; Charge the device.
Peranti membeku atau menjadi tidak responsif	Gangguan perisian sementara.	Long press the Power Off / Backlit button to force a shutdown, then restart the device.

7. Spesifikasi

Ciri	Spesifikasi
Model	LT-40
Julat Pengukuran	Sehingga 40 meter (131 kaki)
Unit	m / dalam / kaki
Kelas Laser	Class II, Output power <1mW
Jenis Bateri	Lithium-Ion (rechargeable via Micro-USB)
bahan	Aloi aluminium dan ABS
warna	Kelabu
Dimensi Produk	5.6 x 1.2 x 2.1 cm
Berat Barang	28 g
Tahap Ketahanan Air	Kalis air (penarafan IP54)

8. Waranti & Sokongan

WANLUTECH is dedicated to providing high-quality products and excellent customer service. For any questions, technical support, or warranty inquiries regarding your LT-40 Mini Laser Distance Meter, please contact our customer support team through the retailer where you purchased the product or visit the official WANLUTECH webtapak untuk maklumat hubungan.

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WANLUTECH LT-40

WANLUTECH LT-40 Mini Laser Distance Meter User Manual