Hioki 3272 User manual
Contents
Introduction i
Inspection i
Notes on Safety ii
Precautions vi
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
3272A981-12
i
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Introduction
――――――――――――――――――――――――
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. Using
the product in a way not described in this manual
may negate the provided safety features.
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
iii
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Notes on Safety
――――――――――――――――――――――――
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.
iv
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Notes on Safety
――――――――――――――――――――――――
DANGER
Indicates that incorrect operation
presents an extreme hazard that could
result in serious injury or death to the
user.
WARNING
Indicates that incorrect operation
presents a significant hazard that could
result in serious injury or death to the
user.
CAUTION Indicates that incorrect operation
presents a possibility of injury to the
user or damage to the product.
NOTE Indicates advisory items related to
performance or correct operation of the
product.
The following symbols are used in this Instruction
Manual to indicate the relative importance of
cautions and warnings.
v
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Notes on Safety
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Measurement categories
To ensure safe operation of measurement products,
IEC 61010 establishes safety standards for various
electrical environments, categorized as CAT II to
CAT IV, and called measurement categories.
CAT II : Primary electrical circuits in equipment
connected to an AC electrical outlet by a
power cord (portable tools, household
appliances, etc.) CAT II covers directly
measuring electrical outlet receptacles.
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).
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.
Use of a measurement instrument that is not CAT-
rated in CAT II to CAT IV measurement
applications could result in a severe accident, and
must be carefully avoided.
vi
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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 for the first time, verify
that it operates normally to ensure that no damage
occurred during storage or shipping. If you find any
damage, contact your dealer or Hioki representative.
vii
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Precautions
――――――――――――――――――――――――
DANGER
To avoid accidents, when using other
measurementdevices with this one, observe the
usage precautions described for each device.
When using a measurement instrument that
does not provide isolation between its input
terminals and chassis or other input terminals,
please pay attention to the following points.
If a signal is applied to an input terminal other
than that to which the current probe is
connected, do not connect the ground-side
terminal to any non-ground potential.
Otherwise, short-circuit current will flow
through the current probe or this device from
the ground terminal, which could cause an
electrical accident or damage.
Current Probe
viii
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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.
ix
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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
――――――――――――――――――――――――
Chapter 1
Overview
1.1 Product Overview
This unit is the power supply dedicated to Models
3273-50, 3273, 3274, 3275, and 3276 Clamp on
Probe (hereafter referred to as thecurrent probe),
as well as Models CT6700 and CT6701 Current
Probe.
2
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Chapter 1 Overview
――――――――――――――――――――――――
Front view
Power
indicator
Power supply receptacles
1.2 Names of Parts
External view
3
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Chapter 1 Overview
――――――――――――――――――――――――
Rear view
Power supply
connector Fuse holder
On
Off
Grounding terminal
Power
switch Voltage
window
5
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Chapter 2 Specifications
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Compatible
sensors 3273-50, 3273, 3274, 3275, 3276 Clamp
On Probe and CT6700, CT6701 Current
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)
Chapter 2
Specifications
2.1 Product Specifications
6
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Chapter 2 Specifications
――――――――――――――――――――――――
Storage
temperature and
humidity range
-10 to 50 (14 to 122 ), 80% RH or
less (no condensation)
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, Pollution Degree 2
EMC EN 61326
EN 61000-3-2
EN 61000-3-3
2.2 Standards Applying
7
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Chapter 3 Measurement Procedure
――――――――――――――――――――――――
Chapter 3
Measurement
Procedure
8
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Chapter 3 Measurement Procedure
――――――――――――――――――――――――
DANGER
To avoid accidents, when using other
measurementdevices with this one, observe the
usage precautions described for each device.
When using a measurement instrument that
does not provide isolation between its input
terminals and chassis or other input terminals,
please pay attention to the following points.
If a signal is applied to an input terminal other
than that to which the current probe is
connected, do not connect the ground-side
terminal to any non-ground potential.
Otherwise, short-circuit current will flow
through the current probe or this device from
the ground terminal, which could cause an
electrical accident or damage.
Current Probe
3.1 Preparations
9
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Chapter 3 Measurement Procedure
――――――――――――――――――――――――
WARNING
Before turning the product on, make sure the
supply voltage matches that indicated on its
power connector. Connection to an improper
supply voltage may damage the product and
present an electrical hazard.
NOTE
3.2 Measurement Procedure
(1) Turn the power switch off and connect the power
cord.
(2) Connect the power plug of the sensor to be used to
the power receptacle of the 3272.
(3) Turn the 3272 power switch on, and check that the
front panel power indicator lights.
See the 3273-50, 3273, 3274, 3275, 3276, CT6700
or CT6701 instruction manual.
Make sure the sum of the current consumption of
the connected current probe does not exceed the
rated output current of the 3272 (See Fig.1).
When using the 3272 with Model 3273-50, 3273,
3274, 3275, 3276, CT6700 or CT6701 in general
only one current probe may be connected.
However, depending on the current level of the
object under test, two current probes may be
connected simultaneously.
The current consumption of a current probe is
dependent upon the current level of the object under
test.
10
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Chapter 3 Measurement Procedure
――――――――――――――――――――――――
0
100
200
300
400
500
600
0 1020304050
AC(f=50Hz)
DC
0
100
200
300
400
500
600
0 100 200 300
AC(f=50Hz)
DC
0
100
200
300
400
500
600
0 100 200 300 400 500 600 700
AC(f=50Hz)
DC
(1) 3273-50 current (A)
currentconsumption(mA)
currentconsumption(mA)
currentconsumption(mA)
(2) 3274 current (A)
(3) 3275 current (A)
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