1. Introduction
This manual provides detailed instructions for the safe and effective use of your TOTAL TMT57026 Laser Distance Meter. Please read this manual thoroughly before operating the device and keep it for future reference. This device is designed for accurate distance measurements up to 70 meters, suitable for various professional and DIY applications.
2. Safety Instructions
- Laser Radiation: This device emits Class 2 laser radiation. Do not stare into the laser beam or direct it at other people or animals.
- Eye Protection: Avoid direct eye exposure to the laser beam.
- Operating Environment: Do not operate the device in explosive atmospheres or near flammable materials.
- Water Resistance: This device is not water resistant. Avoid exposure to water or high humidity.
- Maintenance: Only qualified personnel should repair the device.
- Batteries: Use only specified AAA batteries. Do not mix old and new batteries or different types of batteries.
3. Product Overview
Familiarize yourself with the components of your TOTAL TMT57026 Laser Distance Meter.
Figure 1: The TOTAL TMT57026 Laser Distance Meter, showing the device itself, two AAA batteries, a carrying pouch, and retail packaging. The device features a digital display and multiple function buttons.
Key Components:
- Laser Emitter/Receiver: Located at the top of the device.
- Display Screen: Shows measurements, units, and mode indicators.
- MEAS Button: Initiates single or continuous measurement.
- UNIT Button: Changes measurement units (e.g., meters, feet, inches).
- C/O Button: Clears the last measurement or turns the device off.
- Function Buttons: For area, volume, addition, subtraction, and other calculations.
- Battery Compartment: Located at the rear of the device.
4. Setup
4.1 Battery Installation
- Locate the battery compartment cover on the back of the device.
- Slide or unclip the cover to open it.
- Insert two (2) AAA 1.5V disposable batteries, ensuring correct polarity (+/-). The device includes two AAA batteries.
- Close the battery compartment cover securely.
4.2 Powering On/Off
- To Power On: Press the MEAS button briefly. The display will light up.
- To Power Off: Press and hold the C/O button for approximately 3 seconds. The device will also automatically power off after a period of inactivity to conserve battery life.
5. Operating Instructions
5.1 Basic Distance Measurement
- Ensure the device is powered on.
- Point the laser beam at the target surface.
- Press the MEAS button once. The laser will activate, and the measurement will appear on the display.
- The measurement will be held on the screen until a new measurement is taken or the device is turned off.
5.2 Continuous Measurement (Tracking)
- Press and hold the MEAS button for approximately 2 seconds.
- The device will enter continuous measurement mode, displaying real-time distance as you move the device.
- Press the MEAS button again to stop continuous measurement and hold the last value.
5.3 Changing Measurement Units
- Press the UNIT button repeatedly to cycle through available units: meters (m), feet (ft), and inches (in).
- The selected unit will be indicated on the display.
5.4 Area and Volume Measurement
The device supports calculation of area and volume. Refer to the icons on the function buttons for specific modes.
- Press the appropriate function button (e.g., the button with the square icon for area, or cube icon for volume).
- Follow the on-screen prompts to take the required measurements (e.g., length, width for area; length, width, height for volume).
- The calculated result will be displayed.
5.5 Addition and Subtraction
Use the +/- button to add or subtract measurements.
- Take the first measurement.
- Press the +/- button to select addition or subtraction mode.
- Take the second measurement. The device will automatically perform the calculation and display the result.
6. Maintenance
6.1 Cleaning
- Wipe the device with a soft, damp cloth. Do not use abrasive cleaners or solvents.
- Clean the laser lens carefully with a soft, lint-free cloth, similar to cleaning camera lenses.
6.2 Storage
- Store the device in a dry, cool place, away from direct sunlight and extreme temperatures.
- If storing for an extended period, remove the batteries to prevent leakage.
6.3 Battery Replacement
- When the battery indicator on the display shows low power, replace both AAA batteries following the instructions in Section 4.1.
7. Troubleshooting
| Problem | Possible Cause | Solution |
|---|---|---|
| Device does not power on. | Batteries are dead or incorrectly installed. | Check battery polarity or replace with new AAA batteries. |
| Inaccurate measurements. | Laser lens is dirty; target surface is too reflective/non-reflective; device is unstable. | Clean the laser lens. Measure against a suitable, stable surface. Ensure device is held steady. |
| Laser beam is not visible. | Bright ambient light; laser is off. | Operate in lower light conditions. Ensure device is powered on and MEAS button is pressed. |
| Display shows an error code. | Measurement out of range; internal error. | Ensure target is within 0.05m to 70m range. Try restarting the device. If error persists, contact support. |
8. Specifications
- Model: TMT57026
- Brand: TOTAL
- Measuring Range: 0.05 to 70 meters
- Measurement Units: Meters (m), Feet (ft), Inches (in)
- Laser Class: Class 2
- Batteries: 2 x AAA, 1.5V (included)
- Battery Type: Disposable
- Automatic Laser Shut-off: Yes (after inactivity)
- Automatic Device Shut-off: Yes (after inactivity)
- Product Dimensions: Approximately 17 x 5 x 0.1 cm
- Item Weight: Approximately 160 g (0.16 Kilograms)
- Material: Plastic
- Color: Turquoise
- Water Resistance Level: Not Water Resistant
- Manufacturer: Total
- Country of Origin: China
9. Warranty and Support
For warranty information and technical support, please contact TOTAL customer service. Keep your purchase receipt as proof of purchase.
For further assistance, please refer to the official TOTAL website or contact your local distributor.
