Hioki 3181-01 Manual de usuario
DIGITAL POWER HiTESTER
INSTRUCTION MANUAL
3181-01
XPHyosi.A5FE.fm1ページ２００６年１２月２８日 木曜日 午前９時３７分
XPHyosi.A5FE.fm2ページ２００６年１２月２８日 木曜日 午前９時３７分
Contents
Introduction i
Inspection i
Safety Notes ii
Notes on Use iii
Chapter 1 Introduction 1
1.1 Features 2
Chapter 2 Specifications 3
Chapter 3 Principle of Operation 5
3.1 Power Measurement 5
3.2 Current and Voltage Measurement 7
3.3 Integrated Watt Value 8
3.4 Crest Factor 10
Chapter 4 Names and Functions of Parts 11
Chapter 5 Operation 19
5.1 Preparing for Measurement 19
5.2 Power, Current and Voltage Measurement 22
5.3 Integrated Watt Value Measurement 23
Chapter 6 Applications 27
6.1 Determing the Power Factor 27
6.2 Connecting the Recorder 27
6.3 Printer Connection 28
6.4 External Control Terminal 30
6.5 Data Output Connector 31
6.6 Inputs Exceeding the Measurement Range 34
6.7 Three-Phase Three-Wire Connection 35
Chapter 7 Maintenance and Service 37
7.1 Battery Replacement 37
7.2 Fuse Replacement 39
7.3 Cleaning 40
7.4 Service 40
i
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Inspection
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I
ntroduction
I
nspection
Thank you for purchasing this HIOKI "3181-01 DIGITAL
POWER HiTESTER ." To get the maximum performance
from the unit, please read this manual first, and keep
this at hand.
When the unit is delivered, check and make sure that it
has not been damaged in transit. If the unit is damaged,
or fails to operate according to the specifications, contact
your dealer or HIOKI representative.
Accessory
Instruction Manual 1
Power cord 1
ii
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Safety Notes
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In the manual, this mark indicates explanations
which it is particularly important that the user read
before using the equipment.
DANGE
R
Indicates that incorrect operation presents extreme
danger of accident resulting in death or serious
injury to the user.
WARNIN
G
Indicates that incorrect operation presents
significant danger of accident resulting in death or
serious injury to the user.
CAUTIO
N
Indicates that incorrect operation presents
possibility of injury to the user or damage to the
equipment.
NOTE Denotes items of advice related to performance of
the equipment or to its correct operation.
S
afety Notes
This Instruction Manual provides information and
warnings essential for operating this equipment in a safe
manner and for maintaining it in safe operating
condition. Before using this equipment, be sure to
carefully read the following safety notes.
Safety symbols
The following symbols are used in this Instruction
Manual to indicate the relative importance of cautions
and warnings.
iii
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Notes on Use
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DANGE
R
Always connect the voltage cable to the secondary
side of a breaker. On the secondary side of a
breaker, even if the lines are shorted the breaker
can trip and prevent an accident. On the primary
side, however, the current capacity may be large,
and in the event of a short-circuit there may be a
serious accident.
This unit cannot be used on voltage lines of 250
Vrms. If the voltage exceeds 250 VAC, there will be
a short-circuit accident or electrocution accident
will result.
WARNIN
G
In order to prevent an electrical accident, do not
make any connections while the power supply or
the device to be measured is on. Turn off the
power for both devices before proceeding.
The power supply voltage for this unit is switchable
.
To avoid electrical accidents, check that the voltage
selector is set correctly for the supply voltage you
are using.
In order to maintain safety and assure the stable
operating performance of this unit, be sure to
connect the ground terminal to a proper ground.
N
otes on Use
In order to ensure safe operation and to obtain maximum
performance from the unit, observe the cautions listed
below.
iv
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Notes on Use
―――――――――――――――――――――――――――――――――――
CAUTIO
N
･Before measurement, check the position of the range
switch. The unit may be damaged if current or voltage
exceeds the measurement limit is applied for a long
time.
･Before using the unit, make sure that the sheathing on
the leads is not damaged and that no bare wire is
exposed. If there is damage, replace it with a new one.
･Do not store or use the unit where it will be exposed to
direct sunlight, high temperatures, high humidity, or
condensation. If exposed to such conditions, the unit
may be damaged, the insulation may deteriorate, and
the unit may no longer satisfy its specifications.
･To avoid damage to the unit, do not short the output
terminal and do not input voltage to the output terminal.
NOTE ･After initiating watthour measurement by pressing the
start button, do not alter the settings of the range switch,
the time setting dial or the time unit switch.
･The 3181-01 is not certified for commercial metering.
･The 3181-01 uses a voltage transformer (PT) and current
transformer (CT), which do not transmit DC. It is
therefore not possible to measure a signal (for example
full-wave or half-wave rectified) which includes a DC
component.
･Do not use the 3181-01 to measure equipment with
ratings outside its ranges or whose current consumption
continuously exceeds 15A.
1
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Chapter 1 Introduction
―――――――――――――――――――――――――――――――――――
Chapter
1
Introductio
n
The 3181-01 is a compact, multifunction power meter
providing power, current, voltage and watthour
measurements on equipment such as consumer products.
Current and voltage are indicated as true rms values,
enabling accurate measurements even on distorted
waveforms.
The integrator contains a timer allowing integration time
to be set in ranges 1 to 99 minutes or 1 to 99 hours. With
several output terminals, the 3181-01 can be linked to a
data recorder or a printer, enabling easy recording of
measurement data.
2
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Chapter 1 Introduction
―――――――――――――――――――――――――――――――――――
1
.1 Features
(1) Power, current, voltage and watthour measurements in a
single unit
(2) True rms reading of voltage and current values
unaffected by distorted waveforms
(3) Integrator timer can be set in ranges 1 to 99 minutes or 1
to 99 hours. (set timer at 00 for continuous integration)
(4) Auto-zero circuit ensures accurate power and watthour
measurements over long time spans.
(5) Three simultaneous outputs for power, current and
voltage
(6) Connecting the optional 3171 DIGITAL PRINTER to the
data output connector makes it possible to record power
consumption and average power values over time.
(7) Watthour data is protected against power failures by a
battery backup function.
(8) Compact, lightweight and highly portable
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