WANLUTECH LT-40P Laser Measure User Manual

WANLUTECH LT-40P Laser Measure

Product Information

Specifications

• Laser receiving lens: Used to receive laser signals
• Laser emission port: Emits the measurement laser
• LCD display: Displays measurement data and settings
• Main button: Used for turning on/off the device and initiating measurements
• Shut down button: Used for shutting down the device and returning to previous data or mode
• Function button: Used for switching front/rear reference and function modes
• Lanyard hole: Allows you to attach a lanyard for easy carrying
• Charging port: Used for charging the device

Product Usage Instructions

Basic Operation

• On/Off: Press the main button for 0.5 seconds to turn on the device. Press the shutdown button for 2 seconds to shut down the device.
• Switching front/rear reference: In the power-on state, press the function button for about 1 second to switch between front and rear reference. Note that this should be done before starting a measurement or after completing a single measurement. Do not switch the reference during the measurement process.
• Switch numerical unit: In the shutdown state, press the main button and turn it on. Keep the keys on and wait for about 2 seconds after turning on the device to enter the measurement numerical unit switching state. The unit can be switched between meters (m), feet (ft), and inches (in) in turn.
• Return operation: Press the shutdown button for about 0.5 seconds to return to the previous level of data or mode.
• LCD backlight control: Long press the switch button for about 1 second to turn off/on the LCD backlight.

Simple Measurement

• Single measurement: When the device is powered on, press the main button for about 0.5 seconds to turn on the red measurement laser. Press the main button again to start the measurement and display the data. If there is no operation, the device will automatically turn off after 20 seconds.
• Consecutive measurement: Long press the main button for about 1 second to enter the consecutive measurement mode. While moving the device to a new position, the real-time distance measurement data will be displayed on the screen. The device will automatically display the maximum and minimum values of the measured data under consecutive mode.

Advanced Function Operation

• Switch function mode: When the device is powered on, short press the function button for about 0.5 seconds to switch between function modes. Each press will switch to a different function mode.
• Area measurement: In this mode, the area can be measured and automatically calculated. Short press the main button to measure the length (Data[Length]), then short press again to measure the width (Data[Width]). The device will automatically calculate and display the volume based on these two measurements.
• Volume measurement: In this mode, the area can be measured and automatically calculated. Short press the main button to measure the first data, then short press again to measure the second data, and short press again to measure the third data. The device will automatically calculate and display the volume based on these three measurements.

FAQ

• Q: How do I switch between front and rear reference?
  A: In the power-on state, press the function button for about 1 second to switch the reference. Make sure to do this before starting a measurement or after completing a single measurement. Do not switch the reference during the measurement process.

• Q: How do I switch the numerical unit?
  A: In the shutdown state, press the main button and turn it on. Keep the keys on and wait for about 2 seconds after turning on the device to enter the measurement numerical unit switching state. The unit can be switched between meters (m), feet (ft), and inches (in) in turn.

• Q: How do I perform a single measurement?
  A: When the device is powered on, press the main button for about 0.5 seconds to turn on the red measurement laser. Press the main button again to start the measurement and display the data. If there is no operation, the device will automatically turn off after 20 seconds.

• Q: How do I measure an area or volume?
  A: In advanced function mode, you can measure area or volume. Follow the instructions provided in the user manual for each specific measurement mode.

Interface

Operating instructions

1. Do not look directly at the red laser light emitted from the laser-emitting port with your eyes. Looking directly at it will cause damage to your eyes.
2. Do not cover the receiving lens and laser emitting port of the range when measuring the distance, and place the range on a fixed baffle or bracket plane as much as possible.
3. During measurement, the range cannot be moved before the measurement result is displayed on the software interface.
4. The better the laser’s throwback (scattering, non-reflection) effect on the target surface, the farther its range. When the laser spot falls on the surface of the following objects, the measurement will be inaccurate：
   • Transparent surfaces (water, glass). — Surfaces that reflect surfaces (polished metals)
   • Porous surfaces (e.g. soundproof materials)
   • Textured surfaces (e.g. rough plaster walls, natural stone). If necessary, reflective target paper (e.g. white paper) can be placed on top of these objects
5. Front/Rear reference
   Front/Rear reference: means whether the body length is counted in the measurement data of both ways. Front datum: Without fuselage length. Rear reference: Include fuselage length
   Front benchmark display was shown by
   The rear reference display is shown by

Basic operation

1. On/Off

   • a. Press the main button for 0.5 seconds to turn it on.
   • b. Press the shutdown button for 2 seconds to shut down.

2. Switching front/rear reference In the power-on state, press the function button for about 1 second to switch the reference.
   Note: The selection of the reference should be before the start of the measurement or after the end of a single measurement. Do not switch the reference during the measurement process.

3. Switch numerical unit
   In the shutdown state, press the main button and turn it on and keep the keys on, wait for about 2 seconds after turning on the device to enter the measurement numerical unit switching state. The unit can be switched between m (meter)/ft (feet)/in (inch) in turn.

4. Other operations

   • a. Return operation Press the shut down button for about 0.5 seconds to return to the previous level of data or mode.
   • b. LCD backlight control Long press the switch button for about 1 second to turn off/on the LCD backlight.

5. Simple measurement

   • a. Single measurement
   • When power on, press the main button for about 0.5 seconds and turn on the red measurement laser. Short press again to start the measurement and display the data.
   • If no operation, the meter will be automatically turned off after 20 seconds and automatically turned off after 60 seconds.
   • b. Consecutive measurement Long press the main button for about 1 second to enter the consecutive measurement mode. In the process of moving the meter to a new position, the real-time distance measurement data will be displayed on the screen. Under consecutive mode, the meter will automatically display the maximum and minimum value of the measured data.

Advanced function Operation

Switch function mode:
When power on, short press the function button for about 0.5 seconds to switch the function mode, and press once to switch one function mode.

1. Area measurement

   • In this mode, the area can be measured and automatically calculated.
   • Short-press the main button to measure the data (1), and then short-press the measured data (2). The meter will automatically work out the volume based on these 2 measurements and display it on the primary display area.
     Area measurement symbol:

2. Volume measurement

   • In this mode, the area can be measured and automatically calculated.
   • Short press the main button to measure data (1), short press again to measure data (2), and short press again to measure data (3). The meter will automatically work out the volume based on these 3 measurements and display it on the primary display area.
     Volume measurement symbol：

3. Primary Pythagorean

   • In this mode, the system uses the Pythagorean law a2+b2=c2, The third side measurement data is automatically measured by the two side measurement data.
   • This mode can calculate the length of the target edge only by running the Pythagorean law once, which is also called the Primary Pythagorean mode. Short press the main button to measure data c, and press again to measure data b. After measuring the two data, the meter automatically calculates the length of data a.
   • Primary Pythagorean symbol:
   • The position of the laser distance meter is shown below.

4. Secondary Pythagorean (data addition)
   This device can measure height in two segments by taking three measurements. Press the operation key the get the data c, data b and data e, the laser automatically calculates the length of data (a1+a2).

   • Secondary Pythagorean symbol (data addition):

5. Secondary Pythagorean (data subtraction)
   This device can measure height in two segments by taking three measurements. Click the operation key the get the data b, data c and data e, the laser automatically calculates the length of data a.

   • Secondary Pythagorean (data subtraction):

6. One-key angle height measurement
   In this mode, the system uses the built-in angle sensor and uses the Pythagorean law to measure, short press the key to measure the length D, the angle θ, the shortest distance a and object height b can be measured by one key.

   • Primary Pythagorean and Angle measurement symbol:

Screen display Interface

Safety information

1. Please don’t look into the beam directly. The laser project is a class 2 laser (635nm, <1mW) that meets the IEC 60825-1 standard.
2. Please place it in an area out of the reach of children.
3. Don’t use this instrument in a flammable or explosive environment
4. Don’t use this instrument near medical equipment or on the air
5. The meter parts mush be kept clean at any time, Please turn them off before cleaning them. When there is dust on the laser emitting port and the receiving lens, use a soft cloth with cleaning water or a neutral screen cleaner, then wipe it. Do not use acid or alkaline detergents for cleaning; as well, do not use alcohol or other solvents for cleaning.
6. The meter is not waterproof, and it cannot be wetted or placed in water.
7. Do not repair this instrument without permission. If the instrument is damaged, please contact your supplier.
8. Please dispose of disused instruments under the laws of your location.

Problems and Solutions

2. Long press the switch time is not enough, please confirm press for

one second.

No display| 1. Turn off the backlight, short press the shutdown button for about 1 second to turn on/ off the backlight.

2. The display is damaged, please contact the supplier to solve it.

Unable to charge| 1. The charging cable is damaged, replace the charging cable to try to solve.

2. The charging module is damaged, please contact the supplier to solve it.

Large| 1. Add white reflector
error| for harsh environments.

2. Fix calibration accuracy in the setting page.

3. The ambient temperature is too low/high, please warm up/cool down the equipment.

---|---
No data| 1. Laser receiving/emission port defacement, clean treatment.

2. The meter shakes too much, please rest.

Specification

selected equipment)
Measuring accuracy| ±2mm
Measuring range (unfavourable conditions*)| 0.03-20/30/40 M (according to the actual selected equipment）
Measuring accuracy (unfavourable conditions)| ±3mm
Display Unit Minimum| 1mm
Laser type| 620~670nm,

Class2 ,<1mw

Battery life

| 250mAh 5000 measurements (approx.)
Charging| DC 5V<1A
Operation Temperature| 0°-40°C
Storage Temperature| -20-60℃
Relative air humidity| 80%

• General conditions
  Refers to the strong reflection ability of the laser irradiation area (such as painting a white wall), the background lighting is dark and the working temperature is 15-35℃.under these conditions, an error ± 0.05 mm/m should be considered.

• Unfavorable conditions
  Refers to the weak reflection ability of the laser irradiation area (such as black cardboard polished tiles), strong background lighting and working temperature is <0℃or >45℃. Under these conditions, an error ± 0.15 mm/m should be considered.

• Measuring range
  When measuring under the laboratory environment (5 meters distance, 300LX brightness), the times of the measurement, will be a deviation of about ±500.

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