Hioki 3272 User manual

Contents
Introduction i
Inspection i
Notes on Safety ii
Precautions vii
Chapter 1 Overview 1
1.1 Product Overview 1
1.2 Names of Parts 2
Chapter 2 Specifications 5
2.1 Product Specifications 5
2.2 Standards Applying 6
Chapter 3 Measurement Procedure 7
3.1 Preparations 8
3.2 Measurement Procedure 9
Chapter 4 Description of Parts 13
4.1 Power Supply Receptacle 13
4.2 How to Change the Power Supply Fuse
and Change the Power Supply Voltage 13

i
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Introduction
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Introduction
Inspection
Thank you for purchasing the HIOKI "Model 3272
POWER SUPPLY."
To obtain maximum performance from the product,
please read this manual first, and keep it handy for
future reference.
When you receive the product, inspect it carefully to
ensure that no damage occurred during shipping. If
damage is evident, or if it fails to operate according
to the specifications, contact your dealer or Hioki
representative.
Supplied accessories
Power cord 1
Instruction manual 1
Spare fuse 1
100 V, 120 V: F1.0 AL/250 V, 20 mm x 5 mm dia.
220 V, 240 V: F0.5 AL/250 V, 20 mm x 5 mm dia.

ii
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Notes on Safety
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WARNING
This product 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 product. 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 product
defects.
Notes on Safety

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Notes on Safety
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The symbol printed on the product
indicates that the user should refer to a
corresponding topic in the manual
(marked with the symbol) before
using the relevant function.
In the manual, the symbol indicates
particularly important information that
the user should read before using the
product.
Indicates a grounding terminal.
Indicates a fuse.
Indicates AC (Alternating Current).
Indicates the ON side of the power
switch.
Indicates the OFF side of the power
switch.
Safety Symbols
This manual contains information and warnings
essential for safe operation of the product and for
maintaining it in safe operating condition. Before
using it, be sure to carefully read the following
safety precautions.

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Notes on Safety
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Measurement categories (Overvoltage categories)
To ensure safe operation of measurement products,
IEC 61010 establishes safety standards for various
electrical environments, categorized as CAT I to
CAT IV, and called measurement categories. These
are defined as follows.
CAT I : Secondary electrical circuits connected to
an AC electrical outlet through a
transformer or similar device.
CAT II : Primary electrical circuits in equipment
connected to an AC electrical outlet by a
power cord (portable tools, household
appliances, etc.)
CAT III : Primary electrical circuits of heavy
equipment (fixed installations) connected
directly to the distribution panel, and
feeders from the distribution panel to
outlets.
CAT IV : The circuit from the service drop to the
service entrance, and to the power meter
and primary overcurrent protection device
(distribution panel).

vi
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Notes on Safety
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Higher-numbered categories correspond to electrical
environments with greater momentary energy. So a
measurement device designed for CAT III
environments can endure greater momentary energy
thanadevicedesignedforCATII.
Using a measurement product in an environment
designated with a higher-numbered category than
that for which the product is rated could result in a
severe accident, and must be carefully avoided.
Never use a CAT I measuring product in CAT II,
III, or IV environments.
The measurement categories comply with the
Overvoltage Categories of the IEC60664 Standards.

vii
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Precautions
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Precautions
Follow these precautions to ensure safe operation
and to obtain the full benefits of the various
functions.
Preliminary Check
Before using the product the first time, verify that it
operates normally to ensure that the no damage
occurred during storage or shipping. If you find any
damage, contact your dealer or Hioki
representative.

ix
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Precautions
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WARNING
To avoid electrical accidents and to maintain the
safety specifications of this instrument, connect
the power cord only to a 3-contact (two-conductor
+ ground) outlet.
CAUTION
To avoid damage to the product, protect it from
physical shock when transporting and handling. Be
especially careful to avoid physical shock from
dropping.
Do not store or use the product where it could be
exposed to direct sunlight, high temperature or
humidity, or condensation. Under such conditions,
the product may be damaged and insulation may
deteriorate so that it no longer meets
specifications.
To avoid damaging the power cord, grasp the plug,
not the cord, when unplugging the cord from the
power outlet.
This product is not designed to be entirely water- or
dust-proof. Do not use it in an especially dusty
environment, nor where it might be splashed with
liquid. This may cause damage.

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Precautions
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Maintenance & Service
To clean the product, 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 product seems to be malfunctioning, contact
your dealer or Hioki representative.
When sending the product for repair, pack
carefully to prevent damage in transit. Include
cushioning material so the instrument cannot
move within the package. Be sure to include
details of the problem.
Hioki cannot be responsible for damage that
occurs during shipment.

1
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Chapter 1 Overview
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Chapter 1
Overview
1.1 Product Overview
This unit is a special-purpose power supply for the
3273-50, 3273, 3274, 3275, and 3276 CLAMP ON
PROBE.

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Chapter 1 Overview
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5
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Chapter 2 Specifications
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Compatible
sensors
3273-50, 3273, 3274, 3275, 3276
CLAMP ON PROBE
Number of
power supply
connectors
2
Output voltage 12 V 0.5 V
Rated output
current
600 mA (sum total of all channels and
all output voltages)
Ripple voltage 3 mVp-p or less (at rated output current)
Load influence Within output voltage limits indicated
above for current output in the range 0
to 600 mA.
Temperature
influence
Within output voltage limits indicated
above for ambient temperature in the
range 0 to 40 (32 to 104 ).
Power supply
voltage
influence
Within output voltage limits indicated
above for the rated power supply
voltage, 10%.
Operating
temperature and
humidity range
0to40 (32 to 104 ), 80% RH or
less (no condensation)
Storage
temperature and
humidity range
-10 to 50 (14 to 122 ), 80% RH or
less (no condensation)
Chapter 2
Specifications
2.1 Product Specifications

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Chapter 2 Specifications
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Location for use Indoor,altitude up to 2000 m (6562 feet)
Rated supply
voltage
100 V AC (120, 220, and 240 V require
specification) (Voltage fluctuation of
10% from the rated supply voltage are
taken into account.)
Rated supply
frequency
50/60 Hz
Maximum rated
power
20 VA
External
dimensions
Approx. 73W x 110H x 186D mm
Approx. 2.87"W x 4.33"H x 7.32"D
Mass Approx. 1.1 kg
Approx. 38.8 oz.
Accessories Power cord, Instruction manual,
Spare fuse
F1.0 AL/250 V, 20 mm x 5 mm dia.
(for 100 V and 120 V models)
or
F0.5 AL/250 V, 20 mm x 5 mm dia.
(for 220 V and 240 V models)
Safety EN61010-1:2001, Pollution Degree 2
EMC EN 61326:1997
+A1:1998+A2:2001+A3:2003
EN 61000-3-2:2000
EN 61000-3-3:1995+A1:2001
2.2 Standards Applying