Hioki 3285 User manual
3285
CLAMP ON
AC/DC HiTESTER
INSTRUCTION MANUAL
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Contents
Introduction i
Shipping Check ii
Safety iii
Attentions During Use viii
Organization of This Manual xii
Chapter 1 Product Outline 1
1.1 Product Outline 1
1.2 Features 2
1.3 Parts and Functions 3
1.4 Flowchart of Key Operations 9
1.4.1 Current Measurements Mode 9
1.4.2 Voltage Measurements Mode 10
1.4.3 Frequency Measurements Mode 11
1.5 Modes 12
Chapter 2 Measurement Procedure 15
2.1 Preparations 15
2.2 Current Measurement 16
2.2.1 Measuring DC Current (DC A) 16
2.2.2 Measuring AC Current (AC A) 17
2.2.3 Measuring AC/DC Current (AC+DC A) 18
2.2.4 Peak Hold Measurement 20
2.2.5 Output Function 21
2.3 Voltage Measurement 26
2.3.1 Measuring DC Voltage (DC V) 26
2.3.2 Measuring AC Voltage (AC V) 27
2.3.3 Measuring AC/DC Voltage (AC+DC V) 28
2.3.4 Peak Hold Measurement 29
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2.4 Frequency Measurement 30
2.4.1 Frequency Measurement in Current Mode 30
2.4.2 Frequency Measurement in Voltage Mode 31
2.4.3 Output Function For Frequency 32
2.5 Auto-Zero-Adjustment/Zero-Cancel
Correction Function 34
2.5.1 Auto-Zero-Adjustment Function 34
2.5.2 Zero-Cancel Correction Function 35
2.6 Data Hold Function HOLD 35
2.7 Alteration of Counter Updates 36
2.7.1 SLOW mode 36
2.7.2 FAST mode 36
2.8 Recording Function REC 37
2.9 Auto Power-Off Function APS 40
2.10 Battery Low Warning 41
2.11 Beep Tone 41
Chapter 3 Specifications 43
3.1 Measurement Specifications 43
3.1.1 Current Measurement Specifications 43
3.1.2 Voltage Measurement Specifications 48
3.2 General Specifications 49
Chapter 4 Battery Replacement 53
Chapter 5 AC Adapter (Optional) 55
Chapter 6 Attaching The Hand Strap 57
Chapter 7 Troubleshooting 59
Chapter 8 Service 65
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i
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Introduction
――――――――――――――――――――――――
Introduction
Thank you for purchasing the HIOKI "3285 CLAMP
ON AC/DC HiTESTER." To obtain maximum
performance from the instrument/ device/ product,
please read this manual first, and keep it handy for
future reference.
Request
We have tried to bring this manual as close to
perfection as we could achieve. If perchance you
find any unclear portions, mistakes, omissions, or
the like, we would be most obliged if you could
please notify us of them via any HIOKI agent, or
directly.
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ii
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Shipping Check
――――――――――――――――――――――――
Shipping Check
When the unit is delivered, check and make sure
that it has not been damaged in transit. In
particular, check the accessories, panel switches,
keys, and terminals.
If the unit is damaged, or fails to operate according
to the specifications, contact your dealer or HIOKI
representative.
Check the 3285 Unit and the Supplied
Accessories
Main unit
3285 CLAMP ON AC/DC HiTESTER
Supplied accessories
9345 CARRYING CASE 1
9207-10 TEST LEAD (red and black) 1
Hand Strap 1
6F22(006P) 1
Instruction manual 1
Options
9094 OUTPUT CORD
9445-02 AC ADAPTER
(SA10-0910N, SINO-AMERICAN)
9445-03 AC ADAPTER (EU)
(SA10-0910G, SINO-AMERICAN)
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iii
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Safety
――――――――――――――――――――――――
DANGER
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
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.
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iv
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Safety
――――――――――――――――――――――――
DANGER
Indicates that incorrect operation
presents extreme danger of accident
resulting in death or serious injury 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 instrument.
NOTE
Indicates advisory items related to
performance or correct operation of the
instrument.
The following symbols in this manual indicate the
relative importance of cautions and warnings.
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v
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Safety
――――――――――――――――――――――――
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.
In the manual, the symbol indicates
particularly important information that the
user should read before using the instrument.
Indicates AC (Alternating Current).
Indicates DC (Direct Current).
Indicates both DC (Direct Current) and AC
(Alternating Current).
Indicates a device which is double-
insulated.
Indicates that the instrument may be connected
to or disconnected from a live circuit.
Safety Symbols
f.s. (maximum display or scale value, or length of scale)
Signifies the maximum display (scale) value or the
length of the scale (in cases where the scale consists
of unequal increments or where the maximum value
cannot be defined).
In general, this is the range value (the value written
on the range selector or equivalent) currently in use.
rdg. (displayed or indicated value)
Signifies the value actually being measured, i.e., the
value that is currently indicated or displayed by the
measuring instrument.
dgt. (resolution)
Signifies the smallest display unit on a digital
measuring instrument, i.e., the value displayed when
the last digit on the digital display is "1".
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vi
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Safety
――――――――――――――――――――――――
Measurement categories (Overvoltage
categories)
This instrument complies with CAT III safety
requirements.
To ensure safe operation of measurement
instruments, 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).
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vii
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Safety
――――――――――――――――――――――――
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 instrument in an environment
designated with a higher-numbered category than
that for which the instrument is rated could result in
a severe accident, and must be carefully avoided.
Never use a CAT I measuring instrument in CAT II,
III, or IV environments.
The measurement categories comply with the
Overvoltage Categories of the IEC60664 Standards.
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