Pro-face PS-3700A, User Manual, Page: 3 / 131

2
Essential Safety Precautions
This manual includes the following cautions concerning procedures that must be followed to operate the PS-A correctly
and safely. Prior to operating the PS-A, be sure to read this manual and any related materials thoroughly to understand the
correct operation and functions of this unit.
Safety Icons
To allow you to use the PS-A correctly, throughout this manual, the following icons are provided next to operations
requiring special attention. These icons are used to describe the following situations:
Failure to fully comply with points indicated by this symbol may result in death or
serious injury.
Failure to fully comply with points indicated by this symbol may result in injury or
equipment damage.
Indicates actions or procedures that should NOT be performed.
Indicates actions or procedures that MUST be performed to ensure proper opera-
tion.
To avoid the possibility of an electric shock, be sure to disconnect the power cord to the PS-A before con-
necting it to the main power supply.
A fire or electrical shock may occur if voltages used with the PS-A are beyond the specified range. Be
sure to use only the specified voltage.
Before opening the PS-A’s protective cover, be sure to turn the unit's power OFF. This is because the PS-
A's internal parts carry high voltages.
To avoid fires or electrical hazards, do not modify the PS-A in any way.
Do not create touch panel switches that are used to either control or to ensure the safety of equipment
and personnel. Mechanical switches, such as an emergency stop switch, a deadman (two-handed) start
switch, etc., must be installed and operated via a separate control system.
Do not create touch panel switches which could possibly endanger the safety of humans and equipment.
This is due to the possibility of a malfunction in the PS-A or its cable(s), causing the output of a signal that
could result in a major accident. All of a system's major, safety-related switches should be designed to be
operated separately from the PS-A.