PREXISO PLT40LI Rechargeable Laser & Tape Measure

Introduction

The Prexiso PLT40LI is a versatile 2-in-1 tool combining a 40-meter rechargeable laser distance meter with a 5-meter tape measure. This manual provides essential information for its safe and effective use.

Safety Instructions

⚠️ WARNING: Read all instructions and the user manual before first use. Failure to follow safety guidelines may result in hazardous radiation exposure, serious injury, or material damage.

❗ CAUTION: Use of controls or adjustments other than those specified may lead to hazardous radiation exposure.

General Safety Precautions

• Retract the tape measure slowly and in a controlled manner to prevent damage and injury. Keep fingers away from the blade edges.
• This product is intended for use by skilled persons only.
• Do not attempt to modify the laser device's performance.
• Do not operate the tool outdoors or in explosive hazardous areas or aggressive environments.
• Never attempt to repair or disassemble the laser measuring tool. Contact qualified service personnel for repairs.
• Do not stare into the laser beam or direct it unnecessarily towards other people. Avoid dazzling others.
• Looking directly into the beam with optical aids can be hazardous.
• Only use chargers recommended by the manufacturer.
• Keep extremities a safe distance from moving parts.
• Be aware of erroneous measurements if the product is defective, dropped, misused, or modified.
• Perform periodic test measurements, especially before, during, and after important measurements.
• Dispose of the product and batteries according to national and local regulations; do not dispose of with household waste.

Laser Classification

This is a Class 2 laser product (IEC 60825-1:2014). Laser Class 2: <1 mW @ 620-690 nm. Do not stare into the beam. Eye protection is normally afforded by aversion responses including the blink reflex.

Areas of Responsibility

The person responsible for the instrument must ensure all users understand and adhere to safety instructions and local regulations, and prevent unauthorized access.

Electromagnetic Compatibility (EMC)

The device complies with relevant standards, but interference with other devices cannot be totally excluded.

FCC Statement (Applicable in U.S.)

This equipment complies with Part 15 of the FCC Rules. It generates, uses, and can radiate radio frequency energy. If it causes harmful interference, users are encouraged to try correcting it by reorienting antennas, increasing separation, connecting to a different circuit, or consulting a dealer/technician.

Instrument Setup & Overview

Device Description

The Prexiso PLT40LI is a 2-in-1 tool combining a 40-meter rechargeable laser distance meter with a 5-meter tape measure. It features a clear display, intuitive buttons, and a Li-ion battery.

Key Components

• Laser Emitter: Front-facing, emits the laser beam.
• Display: Shows measurement results, units, battery status, and function indicators.
• Buttons:
  • ON/Measure/Continuous: Powers on, initiates single measurement, or starts continuous measurement.
  • Units/Reference: Cycles through units (m, ft, in, ft+in) and changes the measurement reference point (front/bottom or rear/top).
  • FUNC: Selects measurement functions (Area, Volume, Pythagoras).
• Tape Measure Hook: For extending the 5m tape.
• Battery: Rechargeable Li-ion battery.
• Charging Port: Type-C for recharging.

Display Indicators

The display shows:

• Current measurement value.
• Selected unit (m, ft, in, ft+in).
• Measurement reference point.
• Battery level.
• Function indicators.

Battery Charging

Charge the device using the Type-C cable when the battery symbol is empty. A full charge supports up to 5000 measurements.

Operations

Switching ON/OFF

Press the ON/Measure button to turn the device ON. It automatically switches OFF after 120 seconds of inactivity.

Measuring Single Distance

1. Press the ON/Measure button to activate the laser.
2. Aim the laser beam at the target surface.
3. Press the ON/Measure button again to take the measurement. The result is displayed.

Target surfaces: Measurement errors may occur on colorless liquids, glass, styrofoam, semi-permeable surfaces, or highly glossy surfaces. Dark surfaces may increase measurement time.

Continuous Measuring

1. Press and hold the ON/Measure button for approximately 3 seconds to enter continuous measurement mode.
2. Move the device slowly while aiming at the target. The measurement updates in real-time.
3. Press the ON/Measure button to stop and hold the last measured value.

Unit Setting

Press and hold the Units/Reference button for 3 seconds to cycle through available units: meters (m), feet (ft), inches (in), feet and inches (ft'in'').

Measurement Reference Changing

The default measurement reference is the bottom of the device. Press the Units/Reference button to switch the reference point to the top of the device.

Area Measurement

2-Point Area:

1. Select the Area function using the FUNC button.
2. Aim the laser at the first corner of the area and press ON/Measure.
3. Aim the laser at the second corner and press ON/Measure. The device calculates and displays the area.

Volume Measurement

3-Point Volume:

1. Select the Volume function using the FUNC button.
2. Aim the laser at the first corner (e.g., length) and press ON/Measure.
3. Aim the laser at the second corner (e.g., width) and press ON/Measure.
4. Aim the laser at the third corner (e.g., height) and press ON/Measure. The device calculates and displays the volume.

Pythagoras (2-point)

Used to calculate the height or length of an object indirectly, forming a right triangle.

1. Select the Pythagoras (2-point) function using the FUNC button.
2. Aim the laser at the first target point. Press ON/Measure.
3. Aim the laser at the second target point, ensuring the device is positioned to form a 90° angle with the line between the first point and the device. Press ON/Measure.
4. The device calculates and displays the indirect measurement (hypotenuse).

Pythagoras (3-point)

Used for indirect measurement when a direct line of sight is obstructed.

1. Select the Pythagoras (3-point) function using the FUNC button.
2. Aim the laser at the first target point. Press ON/Measure.
3. Aim the laser at the second target point (perpendicular to the measuring surface, forming a 90° angle). Press ON/Measure.
4. Aim the laser at the third target point. Press ON/Measure.
5. The device calculates and displays the indirect measurement.

Technical Data

* The typical measurement uncertainty of ±3mm is valid for measurements on white, diffusive, reflective targets up to 10m at low ambient light and moderate temperatures. For distances greater than 10 m, the measurement uncertainty could increase additionally by 0.1 mm/m. In unfavorable conditions (such as bright sunlight, targets with poor reflectivity, or high or low temperatures) the measurement uncertainty could further increase up to ±6mm for distances below 10 m.

Troubleshooting

Care and Maintenance

• Clean the device with a damp, soft cloth.
• Never immerse the device in water.
• Never use aggressive cleaning agents or solvents.

Disposal

Dispose of the product and batteries according to national and local regulations. Do not dispose of with household waste.

Warranty

This product comes with a Two-Year Limited Warranty from the original purchase date. It covers defects in material and workmanship. This warranty does not cover damage from normal wear, abuse, unauthorized modifications, rental use, shipping damage, accidents, acts of God, misuse, or neglect. Prexiso will replace or repair defective units at its discretion.

EC Declaration of Conformity

Manufacturer: Hangzhou GreatStar Industrial Co., Ltd, 35# Jiuhuan Rd, Jiubao Town, Hangzhou, Zhejiang, China

Product: RECHARGEABLE LASER & TAPE MEASURE

Model No.: PLT40LI

Declaration: Declares that the product complies with the appropriate basic safety and health requirements of the EC Directives (EMC Directive 2014/30/EU).

Harmonized Standards Used: EN 61326-1:2013

Authorized Signatory: Xu Dong Ling, Engineer

Date: 2021-8-19