Preface
ii PRS-7910
Instructions and Warnings
The following indicators and standard definitions are used:
DANGER!
means that death, severe personal injury and considerable equipment damage
will occur if safety precautions are disregarded.
WARNING!
means that death, severe personal and considerable equipment damage
could occur if safety precautions are disregarded.
CAUTION!
means that light personal injury or equipment damage may occur if safety
precautions are disregarded.
NOTICE!
is particularly applies to damage to device and to resulting damage of the protected
equipment.
DANGER!
NEVER allow the current transformer (CT) secondary circuit connected to this
equipment to be opened while the primary system is live. Opening the CT circuit will
produce a dangerously high voltage.
WARNING!
ONLY qualified personnel should work on or in the vicinity of this device. This personnel
MUST be familiar with all safety regulations and service procedures described in this
manual. During operating of electrical device, certain part of the device is under high
voltage. Severe personal injury and significant device damage could result from
improper behavior.
WARNING!
Do NOT touch the exposed terminals of this device while the power supply is on. The
generated high voltage causes death, injury, and device damage.
WARNING!
Thirty seconds is NECESSARY for discharging the voltage. Hazardous voltage can be
present in the DC circuit just after switching off the DC power supply.
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