Hioki 3184 Instruction Manual

3184
Instruction Manual
DIGITAL POWER HiTESTER
EN
Contents
Introduction i Inspection i Safety Notes ii Notes on Use iv
Chapter 1 Overview 1
1.1 Features 1
1.2 Names and Functions of Parts 2
Chapter 2 Specifications 7
2.1 General Specifications 7
Chapter 3 Basic Operating Principle 9
3.1 Active Power Measurements 9
3.2 Voltage and Current Measurements 10
3.3 Crest-Factor 11
Chapter 4 Operating Instructions 13
4.1 Operating Procedure 13
Chapter 5 3184-02 GP-IB Specifications 17
5.1 Outline 17
5.2 Interface Specifications 18
5.3 Panel Description 19
5.4 Talker Function 20
5.5 Listener Functions 21
5.6 Service Requests 23
5.7 Usage Precautions 24
5.8 Sample Programs 25
Chapter 6 Maintenance and Service 29
6.1 Fuse Replacement 29
6.2 Service 30
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I
I
ntroduction
Thank you for purchasing this HIOKI "3184 DIGITAL POWER HiTESTER." To get the maximum performance from the unit, please read this manual first, and keep this at hand.
nspection
When the unit is delivered, check and make sure that it has not been damaged in transit. In particular, check the accessories, panel switches, and connectors. If the unit is damaged, or fails to operate according to the specifications, contact your dealer or HIOKI representative.
Accessories
Fuse M0.5 A/250 V 1 (20×5.2 dia. mm arc-quencing midget) Power cord 1 Instruction Manual 1
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Inspection
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afety Notes
WARNIN
Incorrect measurement procedures could result in injury or death, as well as damage to the equipment. Please read this manual carefully and be sure that you understand its contents before using the equipment. The manufacturer disclaims all responsibility for any accident or injury except that resulting due to defect in its product.
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
In the manual, this mark indicates explanations which it is particularly important that the user read before using the equipment.
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Safety Notes
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The following symbols are used in this Instruction Manual to indicate the relative importance of cautions and warnings. 
iii
DANGE
WARNIN
CAUTIO
NOTE
Indicates that incorrect operation presents extreme danger of accident resulting in death or serious injury to the user.
Indicates that incorrect operation presents significant danger of accident resulting in death or serious injury to the user.
Indicates that incorrect operation presents possibility of injury to the user or damage to the equipment.
Denotes items of advice related to performance of the equipment or to its correct operation.
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Safety Notes
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otes on Use
In order to ensure safe operation and to obtain maximum performance from the unit, observe the cautions listed below.
DANGE
WARNIN
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 500 Vrms. If the voltage exceeds 500 VAC, there will be a short-circuit accident or an electrocution accident
Be sure to connect the voltage input terminals and current input terminals correctly. Measurement which is attempted with the wiring connected incorrectly may cause damage to the unit or a short-circuit. To prevent an electric shock and a short-circuit accidents, shut off the power to the line to be measured before connecting the load to the terminals. To avoid electric shock when replacing the fuse, turn the power switch off, disconnect the power code from the connector, and remove the input cable from the object to be measured. M0.5 A/250 V 20 mm×5.2 mm dia.
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Notes on Use
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WARNIN
CAUTIO
Only use fuses of the specified type that is rated for the specified current and voltage. Using a fuse that does not meet the specifications or shorting the fuse holder may cause an accident that might result in injury or death.
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 electric shock, the wiring which is used for
making the connections to the current input terminals should have sufficient current carrying capacity and insulation.
To avoid damage to the unit, do not short the analog
output terminal and the GP-IB connector terminal and do not input voltage to them.
To avoid damage to the unit, do not subject the
equipment to vibrations or shocks during transport or handling. Be especially careful to avoid dropping the equipment.
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, using the unit could cause electric shock.
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Notes on Use
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NOTE
Accurate measurement may be impossible in locations
subject to strong external magnetic fields, such as transformers and high-current conductors, or in locations subject to strong external electric fields, such as radio transmission equipment.
When a measuring device such as a recorder or voltmeter
is connected to the analog output terminals, there is a possibility of oscillatioin due to the input capacitance of the measuring device. If such oscillation occurs, insert a resistor (100 ohms or thereabouts) in series between the analog output terminals and the measuring device.
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Notes on Use
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Chapter
Overvie
.1 Features
The 3184 is a 3-phase power meter designed to measure voltage, current, and power in single-or-3-phase circuits. The meter’s internal circuit converts voltage and current measurements to true rms value, giving it the capability to accurately measure the special waveforms produced by thyristors and other semiconductor switching devices. The basic instrument is provided with an analog output terminal, and models are available equipped with and GP-IB interface (3184-02).
(1) Voltage, current, single-and 3-phase power measurement
capability (2) Voltage and current quantified as true rms values (3) Good frequency response characteristics (4) Minimum metering losses (5) Overvoltage, overcurrent warning indicators provided (6) Analog outputs provided for power and selected function (7) Optional models with GP-IB interface capability available (8) Lightweight, compact
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Chapter 1 Overview
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.2 Names and Functions of Parts
Front Panel
Rear Panel
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Chapter 1 Overview
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POWER switch
Always turn the power switch ON before a measurement.
Allow the instrument approximately 5 minutes of warm-
up.
Display panel
3-1/2 digits LED display with a maximum display
capability of 1999. Measurement unit annunciators are
coupled to function switch operation, with the
measurement value of V
to W, and the unit displayed.
12
At power ON, the display reading is 0000, and an
overrange input is indicated by "1" in the MSD column,
with all other digits blanked. OVER V and OVER A are
the overvoltage and overcurrent warning indicators. 
These light when peak-value of the input exceeds the
crest-factor of the meter circuit. The REMOTE lamp is
functional only when the instrument is used in a optional
automatic measurement system, and lights to indicate
that function and range settings are under remote-control.
Function switches (V
12
,V
3
1
32
,W)
,A
,A
Used to select the display function. At power ON, the
non-select state is entered automatically. When selection
is made, the selected function switch LED lights.
Range switches (500V/200V, 20A/2A)
Selects the range for voltage and current measurements.
At power ON, both ranges are set to Lo (indicator OFF).
Range switch Hi Lo changes each time the button is
pressed. The range for power measurements is a
combination of voltage and current range settings,
determined as follows.
V rang
A range
Lo (2 A) 0.2 kW 2kW
Hi (20 A) 2kW 20 kW
Lo (200 V) Hi (500 V)
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Chapter 1 Overview
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