Hioki 3481-20 Instruction Manual

3481-20
VOLTAGE
DETECTOR
Instruction Manual
EN
Sept. 2020 Revised edition 1
3481D980-01 20-09H
Introduction
Thank you for purchasing the HIOKI "Model 3481-20 VOLTAGE DETEC-
TOR." To obtain maximum performance from the instrument, please read
this manual first, and keep it handy for future reference.
Overview
This non-contact type of voltage detector unit enables the hot-line state of
AC voltage to be checked through the wire or cable covering
.
Initial Inspection
When you receive the instrument, inspect it carefully to ensure that no dam-
age occurred during shipping. If damage is evident, or if it fails to operate ac-
cording to the specifications, contact your dealer or Hioki representative.
Maintenance and Service
• To clean the instrument, wipe it gently with a soft cloth moistened
with water or mild detergent. Never use solvents such as benzene,
alcohol, acetone, ether, ketones, thinners or gasoline, as they can
deform and discolor the case.
• If the instrument seems to be malfunctioning, confirm that the batter-
ies are not discharged, before contacting your dealer or Hioki repre-
sentative.
Safety
This manual contains information and warnings essential for safe operation
of the instrument and for maintaining it in safe operating condition. Before
using it, be sure to carefully read the following safety precautions.
This instrument is designed to comply with IEC 61010
Safety Standards, and has been thoroughly tested for
safety prior to shipment. However, mishandling during
use could result in injury or death, as well as damage to
the instrument. Be certain that you understand the
instructions and precautions in the manual before use.
We disclaim any responsibility for accidents or injuries
not resulting directly from instrument defects.
Safety Symbol
In the manual, the symbol indicates particularly important informa-
tion that the user should read before using the instrument.
The symbol printed on the instrument indicates that the user
should refer to a corresponding topic in the manual (marked with the
symbol) before using the relevant function.
Indicates a double-insulated device.
Indicates AC (Alternating Current).
Indicates DC (Direct Current).
The following symbols in this manual indicate the relative importance of cau-
tions and warnings.
Indicates that incorrect operation presents an extreme hazard
that could result in serious injury or death to the user.
Indicates that incorrect operation presents a significant hazard
that could result in serious injury or death to the user.
Indicates that incorrect operation presents a possibility of injury
to the user or damage to the device.
Indicates advisory items related to performance or correct oper-
ation of the instrument.
Symbols for Various Standards
Indicates the Waste Electrical and Electronic Equipment Directive
(WEEE Directive) in EU member states.
Indicates that the product conforms to regulations set out by the EC
Directive.
Measurement categories
This instrument complies with CAT IV (600 V) safety requirements.
To ensure safe operation of measurement instruments, IEC 61010
establishes safety standards for various electrical environments,
categorized as CAT II to CAT IV, and called measurement catego-
ries. These are defined as follows.
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HIOKI 3481D