1. Introduction
The atolla T201 Laser Distance Meter is a versatile and precise tool designed for accurate distance measurements in both indoor and outdoor environments. This manual provides essential information for the safe and effective operation, maintenance, and troubleshooting of your device.
2. Product Overview
Figure 1: atolla T201 Laser Distance Meter and accessories.
2.1 Key Features
- Measuring Range: 0.15 to 60 meters (0.49 to 197 feet)
- Accuracy: ±2mm (0.08 inches)
- Measurement Modes: Single, Continuous (Min/Max), Area, Volume, Indirect (Pythagorean 2-point and 3-point)
- Display: Multi 4-line backlit LCD
- Reference Points: Adjustable (front or back of device)
- Units: Meter (m), Inch (in), Foot (ft)
- Data Storage: Up to 20 records
- Additional Functions: Addition, Subtraction, Self-calibration, Mute
- Durability: IP54 dustproof and splash-proof rating
- Power: 2 x AAA batteries (included) with Auto-Off function
- Integrated: 2 Bubble Levels for precise alignment
2.2 Device Components
Figure 2: Front view of the atolla T201 with labeled buttons.
- ON/READ Button: Powers on the device and initiates measurements.
- +/- UNIT Button: Toggles between addition/subtraction and changes measurement units.
- Area/Volume/Indirect Measurement Button: Cycles through various measurement modes.
- History Button: Accesses stored measurement records.
- Reference Button / Mute Button: Changes the measurement reference point (front/back) and mutes/unmutes sound.
- OFF/Return Button: Powers off the device or returns to the previous screen.
- Bubble Levels: Located on the top and side for horizontal and vertical alignment.
3. Setup
3.1 Battery Installation
- Locate the battery compartment cover on the back of the device.
- Slide the cover open.
- Insert two AAA batteries, ensuring correct polarity (+/-).
- Close the battery compartment cover securely.
3.2 Power On/Off
- To power on, press the ON/READ button. The device will display the last used measurement mode.
- To power off, press and hold the OFF/Return button. The device also features an automatic shutdown after 3 minutes of inactivity to conserve battery life.
4. Operating Instructions
4.1 Setting Measurement Reference Point
The device can measure from its front edge or its back edge. This is crucial for accurate measurements depending on your starting point.
Figure 3: Front and Back Measurement Reference Points.
- Press the Reference / Mute button to toggle between the front and back reference points. An icon on the display will indicate the currently selected reference.
4.2 Changing Measurement Units
The atolla T201 supports meters, inches, and feet.
Figure 4: Changing Display Units.
- Press the +/- UNIT button to cycle through the available measurement units (m, in, ft).
4.3 Measurement Modes
Press the Area/Volume/Indirect Measurement button to cycle through the following modes:
Figure 5: Visual representation of different measurement modes.
- Single Measurement: Press ON/READ once to activate the laser, then again to take a single distance measurement.
- Continuous Measurement (Min/Max): In this mode, the device continuously measures and displays the current, minimum, and maximum distances. Press ON/READ to start and again to stop.
- Area Measurement: The device will prompt you to measure two sides (length and width). After two measurements, it automatically calculates and displays the area.
- Volume Measurement: The device will prompt you to measure three sides (length, width, and height). After three measurements, it automatically calculates and displays the volume.
- Indirect Measurement (Pythagorean): This mode allows for indirect measurement of heights or distances using the Pythagorean theorem. Follow the on-screen prompts to take the required measurements (2 or 3 points).
4.4 Data Storage and Retrieval
The atolla T201 can store up to 20 measurement records.
Figure 6: Reviewing stored measurements.
- Press the History button to view previous measurements. Use the arrow buttons to navigate through the records.
4.5 Addition and Subtraction
- After taking a measurement, press the +/- UNIT button to enter addition or subtraction mode. Take subsequent measurements to add or subtract them from the current value.
4.6 Self-Calibration
If you suspect measurement inaccuracies, you can perform a self-calibration. The device allows adjustment by ±7mm.
- Refer to the on-screen menu for specific instructions on initiating and completing the self-calibration process.
4.7 Mute Function
The device can operate silently, which is useful in quiet environments.
Figure 7: Mute function for silent operation.
- Press and hold the Reference / Mute button to toggle the sound on or off.
5. Maintenance
- Cleaning: Use a soft, damp cloth to clean the device. Do not use abrasive cleaners or solvents.
- Storage: Store the device in a dry, cool place away from direct sunlight. Remove batteries if storing for extended periods.
- Battery Replacement: Replace batteries when the low battery indicator appears on the display.
6. Troubleshooting
| Problem | Possible Cause | Solution |
|---|---|---|
| Device does not power on | Low or dead batteries; incorrect battery installation | Replace batteries; ensure correct polarity |
| Inaccurate measurements | Measurement reference point incorrect; device not calibrated; reflective surface issues | Check reference point; perform self-calibration; use a target plate for highly reflective/non-reflective surfaces |
| Laser not visible | Bright ambient light; laser not activated | Operate in lower light conditions; press ON/READ to activate laser |
| Display error message | Out of range; internal error | Ensure target is within range (0.15-60m); restart device |
7. Specifications
| Feature | Specification |
|---|---|
| Model Number | T201 |
| Measuring Range | 0.15 to 60 m |
| Accuracy | ±2mm |
| Units of Measurement | m, in, ft |
| Laser Class | Class 2 |
| IP Rating | IP54 (Dustproof, Splash-proof) |
| Auto-Off | 3 minutes of inactivity |
| Battery Type | 2 x AAA Alkaline batteries |
| Product Dimensions | 12 x 4.5 x 2.2 cm |
| Item Weight | 170 g |
8. Safety Information
Please read and understand all safety instructions before using the device.
- Laser Radiation: This device emits Class 2 laser radiation. Do not stare directly into the laser beam or direct it at other people.
- Eye Protection: Avoid direct eye exposure to the laser beam.
- Children: Keep the device out of reach of children.
- Repairs: Do not attempt to disassemble or repair the device yourself. Contact qualified service personnel.
- Environment: Do not use the device in explosive environments or near flammable materials.
9. Warranty and Support
For warranty information and customer support, please refer to the documentation included with your purchase or visit the official atolla website. If you encounter any issues not covered in this manual, please contact atolla customer service for assistance.
