8 BA-en-2014-2006_ES51
2. Safety
The ES51 Power Supplies have been designed, built and tested using 
state-of-the-art engineering, and have left the factory in a technically and 
operationally safe condition. If used improperly, the units may neverthe-
less be hazardous to personnel and may cause injury or damage. Read 
the operating instructions carefully and observe the safety instructions.
Always observe the rules and regulations applying in your country with 
reference to opening and repairing electrical appliances.
The manufacturers will not assume any liability and warranty if the units 
are used improperly or used outside the intended purpose.
2.1 Proper use
The ES51 Power Supplies may be operated only in connection with the 
appropriate Eltex discharging bars for AC operation.
Modifications or changes made to the power supplies are not permitted.
Use only original Eltex spare parts and equipment.
2.2 Identification of risks and hazards
Possible risks and hazards resulting from the use of the power supplies 
are referred to in these operating instructions by the following symbols:
Warning!
This symbol appearing in the operating instructions refers to operations 
which, if carried out improperly, may result in serious personal injuries.
Caution!
This symbol appearing in the operating instructions refers to operations 
which, if carried out improperly, may result in damage to property.
2.3 Work and operational safety
Warning!
Carefully observe the following notes and the complete chapter 2 "Safety”, 
page 8!
• Before carrying out repairs, cleaning or maintenance work involving the 
power supplies and the discharging bars, switch off the power supply 
and disconnect the mains power supply (see chapter 5 "
Maintenance”, 
page 16, chapter 6 "Trouble-shooting”, page 17).
• Before carrying out any work involving the units, the machine which has 
the units fitted must not be in operation (see chapter 5 "Maintenance”, 
page 16, chapter 6 "Trouble-shooting”, page 17).