INTRODUCTION
Multitasking self-leveling laser construction levelsare used to determine the height in construction
measurements. Model NL740 has a visible light beam and it can be used at work inside and
outside the building. The device is powered by rechargeable batterieswhich use advanced micro-
controlled charging technology.
NL series levels may designate a vertical or horizontal laser plane, additionally the device defines
the axis of the laser plane (laser line - point up and down). NL740 models can be controlled from
the device control panel or remotely, with remote control.
Laser level is waterproof and can be used outdoors, even in the rain. However, these devices
can’t be submerged in water
PRECAUTIONS
WARNING: the device has a built in laser source which generates laser beam. It Is not allowed
to disassembly the device by "your own".
There is a risk of fire, electric shock, or injury while self-repair.
Repairs can be made only by Nivel System service or its authorized representatives.
The laser beam can be hazardous to the human eye if the device is improperly operated.
Never repair the laser by your own.
Protect your eyes from damage.
Never look into the laser beam
Risk of fire and electric shock.
Never use a wet battery.
The possibility of explosion.
Never use a laser level near flammable gases and liquids.
A short-circuit may cause a fire.
Pay attention to not to short-circuit the battery while storing the device.
Protection against shock
When transporting the instrument, it should be protected against shocks. Strong shocks can
cause measurements errors.
The user of this instrument should follow the instructions contained in this manual and remember
to periodically check the correctness of its working. The manufacturer is not liable for any damage
resulting from the incorrect use of the instrument and losses due to this.
Improper use of the laser and use not in accordance with instructions described in this manual,
can cause injury or exposure to excessive radiation dose.
Do not allow anyone to work in a laser beam. Before you begin, make sure that the laser beam is
over the heads of workers. The lighting by laser beam can cause temporary blindness. When it's
possible, use warning signs when construction machines are working near laser level
Do not expose the body and clothing to the acid leaking from batteries and accumulators.
However, if it occurs, quickly wash the body with clean water and consult a doctor.
Broken or damaged transport box or transport box latches can lead to falling out of the box and
damage the laser.
The collapse of laser level to the ground can lead to damage.
Shaky, unstable site of laser level can lead to collapse and damage the laser. Always make sure
that all screws and latches in a tripod works properly.
