18 Installation and Preparations for Use
TOS8030
2.5
Grounding
Ground the tester by connecting the power cord to a properly grounded three-prong
electrical outlet.
Fig. 2-2
Protective Conductor Terminal
• This product is Safety Class I equipment (equipment with a protective con-
ductor terminal) under IEC Standards. To prevent electric shock, always
connect the product’s protective conductor terminal to an electrical ground
(safety ground).
■
Grounding is essential.
If the tester is used without grounding and output is inadvertently short-circuited to
peripheral equipment such as a conveyor connected to ground or a nearby AC power
line*, the tester’s enclosure may be charged to hazardous voltages.
However, when the tester is properly grounded, it will not malfunction, and its
enclosure will not be charged to high voltages even if the output is short-circuited to
the ground via a peripheral, as noted above, or if the tester’s LOW terminal and
HIGH VOLTAGE terminal are short-circuited.
For these reasons, grounding the tester is essential to ensure safety.
* An AC power line is generally a power line connected to an electrical outlet to
which the tester’s power cord is connected. Here, it also refers to an AC line con-
nected to a privately-owned electrical power generation device.
Protective conductor terminal
Grounding is established when the
power cord is connected to a three-
prong electrical outlet.
AC INPUT
WARNING
Description
Summary of Contents for TOS8030
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