HOW to USE the Laser, Charging the batteries

Charging the batteries

The charger requires approx. 10 hours to charge empty rechargeable batteries. For this charging, connect the plug of the charger to the recharge jack of the unit. New or long-time out-of-use rechargeable batteries reach their best performance after being charged and recharged ﬁve times.

The batteries should only be charged when the laser is between 50° F and 104° F (10° C to 40°

C)Charging at a higher temperature may damage the batteries. Charging at a lower temperature may increase the charge time and decrease the charge capacity, resulting in loss of performance and shortened life expectancy.

HOW TO USE THE LASER

Laser Setup

Position the unit horizontally (tripod mount and rubber feet downward!) on a stable platform, wall mount, or tripod at the desired elevation.

Press the power button (1) to turn on the unit. The LEDs (3, 4 and 5) are turned on for 3 seconds. Self-leveling will start at once. The unit is leveled when the leveling indicator (3) is no longer ﬂashing (once every second). The rotor will not spin until the unit is leveled. For the ﬁrst ﬁve minutes after the laser self levels, the LED lights solid then ﬂashes every four seconds to let you know the laser is still level.

In order to switch the unit off, press the power button (1) again.

If the laser is positioned beyond its self-leveling range of ±8%, the manual and leveling indicators ﬂash simultaneously and a warning sound is emitted. Reposition the laser within its self-leveling range.

Self-leveling, Height Change (HI) Alert

Once turned on, the unit automatically levels itself in ranges of 8% (± 0.8 m / 10 m). In order to recognize the leveling process at the measuring area and in order not to mark faulty heights during this operation, the rotation stops.

Once leveled, the unit constantly monitors its level condition. The height change (HI) alert is activated 5 minutes after self-leveling was performed and the laser is rotating at 600 min-1.

Level errors > 30 mm/10 m put the unit into alert mode because they are generally caused by a disturbance that could lead to inaccurate measurements. When entering into alert mode, the prism stops, the laser beam turns off, a warning sound is heard and the HI Warning LED (4) ﬂashes 2 x per second. Turn the unit off and then on again. To ensure your former elevation, now you have to check or arrange the exact height.

Manual Mode/Single Slope Mode

When you press the ‘M’ button (2) on the laser, the remote control, or the receiver-remote control, the laser is set from automatic self-leveling mode to Manual mode. Manual mode is indicated by the ﬂashing (once every second) red LED (4). In Manual mode, the Y-axis can be sloped by pressing the Up- and Down-Arrow-buttons on the remote control. Additionally, the X-axis can be sloped by pressing the Left- and Right-Arrow-buttons on the remote control.

When you press the ‘M’ button again on the remote control, the laser is set into Single Slope mode. This is indicated by the ﬂashing red (4) and green (3) LEDs (once every second). In Single Slope mode, the Y-axis can be sloped by pressing the Up- and Down-Arrow-buttons on the remote control, while the X-axis remains in automatic self leveling mode (e.g. when setting up ramps or drive ways). The Height change (HI) alert is still active.

Pressing the manual button at the laser or remote control again, changes the laser back to automatic self- leveling mode as indicated by the ﬂashing green LED (3).

LL300N-3, LL300N-2, LL300N, LL300N-8, LL300-3 specifications

The Spectra LL300-8, LL300-2, LL300, LL300-3, and LL300N-8 are sophisticated laser level tools designed for precision leveling and alignment in various construction and surveying applications. These models are known for their advanced features, reliability, and ease of use.

The LL300-8 is the latest model in the series, which boasts an impressive operational range of up to 800 meters with a receiver. This model integrates advanced self-leveling technology that ensures accuracy within ±1/16 inch at 100 feet, enhancing its utility for outdoor and indoor projects. It also features a durable design, with IP67 rating making it resistant to dust and water, which is critical for tough job site environments.

The LL300-2, while similar in core functionalities, is known for its user-friendly interface and efficient battery life. It operates with two 9-volt batteries, providing up to 30 hours of continuous work, ensuring that users can complete their projects without frequent interruptions for recharging. This model is also equipped with a durable outer casing that withstands harsh conditions.

The LL300 model serves as a reliable workhorse in the lineup, offering dependability with its robust construction and straightforward operation. It features a visible laser beam that simplifies alignment tasks and is particularly preferred for grading and excavation purposes. The LL300 is designed to withstand the rigors of construction sites while maintaining precision.

The LL300-3 variant incorporates slight enhancements in technology but maintains compatibility with standard receivers, making it an adaptable choice for professionals who may already have other leveling equipment. Its intuitive controls allow users to easily switch between different leveling modes, streamlining the workflow.

Finally, the LL300N-8 integrates state-of-the-art digital technology, providing additional functionalities such as grade compensation and slope capabilities. This model is particularly beneficial for advanced construction projects that require specific height adjustments and complex grading systems.

All models in the LL300 series are equipped with robust laser technology, ensuring visibility even in bright sunlight. They are engineered to be user-friendly, lightweight, and portable, making them suitable for both professional contractors and DIY enthusiasts. With features tailored to enhance accuracy and efficiency, the Spectra LL300 series stands as an essential tool in modern surveying and construction practices.