Topcon DL-501 Instruction Manual page 10

1. PRECAUTIONS FOR SAFE OPERATION
Staff

Caution
Do not use under thunderous weather conditions. The staff is conductive and if struck by

lightning, death or injury could result.
Handle with care when using near high voltage cables or transformers. The staff is

conductive and contact could result in electric shock.
Power Supply

Warning

Do not short circuit. Heat or ignition could result.
Do not disassemble, rebuild, mutilate, incinerate, heat or short circuit the battery and

charger. Fire, electric shock, burns or an explosion could result.
Do not use voltage other than the specified power supply voltage. Fire or electrical shock

could result.
Do not use batteries other than those designated. An explosion could occur, or abnormal

heat generated, leading to fire.
Do not use damaged power cords, plugs or loose outlets. Fire or electric shock could

result.
Do not place articles such as clothing on the battery charger while charging batteries.

Sparks could be induced, leading to fire.
Use only the specified battery charger to recharge batteries. Other chargers may be of

different voltage rating or polarity, causing sparking which could lead to fire or burns.

Do not heat or throw batteries into fire. An explosion could occur, resulting in injury.
Do not use the battery, charger or AC (power) cable for any other equipment or purpose.

Fire or burns caused by ignition could result.
To prevent shorting of the battery in storage, apply insulating tape or equivalent to the

terminals. Otherwise shorting could occur resulting in fire or burns.
Do not use batteries or the battery charger if wet. Resultant shorting could lead to fire or

burns.
Do not connect or disconnect power supply plugs with wet hands. Electric shock could

result.

Caution
Do not touch liquid leaking from batteries. Harmful chemicals could cause burns or

blisters.
2