Hioki 2331-20 Manual de usuario
i
Contents
Contents
Introduction ............................................................... 1
Inspection.................................................................. 1
Safety Notes ............................................................. 2
Notes on Use ............................................................ 5
Chapter 1 Overview 11
1.1 Product Overview ...................................... 11
1.2 Major Features .......................................... 12
1.3 Name and Function of the Parts................ 19
1.4 Dimension Diagrams ................................. 21
Chapter 2 Settings 23
2.1 Setting the Module ID................................ 23
Chapter 3 Preparations 25
3.1 Installing the Module ................................. 25
3.1.1 Installing the Module Base ............. 25
3.1.2 Mounting a Module on the Module
Base ............................................... 25
3.2 Connecting the Clamp Sensor to Module.. 26
3.3 Connecting the Voltage Cable to the
Module....................................................... 28
3.4 Connecting Alarm Output .......................... 29
3.5 Connecting to the Measured Line ............. 30
Contents
ii
Chapter 4 Others 37
4.1 Alarm Output ............................................. 37
4.1.1 Output Rating................................. 37
4.1.2 Target of Alarm Monitoring ............ 38
4.2 Insulation of Internal Circuit....................... 39
Chapter 5 Specifications 41
5.1 Basic Specifications .................................. 41
5.2 Function Specifications ............................. 46
5.3 General Specifications .............................. 48
Chapter 6 Maintenance and Service 51
6.1 Cleaning .................................................... 51
6.2 Service ...................................................... 51
1
Introduction
Thank you for purchasing the HIOKI “Model 2331-
20 POWER METER MODULE”. To obtain
maximum performance from the instrument,
please read this manual first, and keep it handy for
future reference.
When you receive the instrument, inspect it
carefully to ensure that no damage occurred
during shipping. In particular, check the panel
switches, and connectors. If damage is evident, or
if it fails to operate according to the specifications,
contact your dealer or Hioki representative.
Accessories
Instruction manual ............................................1
Options
9695-02 CLAMP ON SENSOR (50 Arms)
9695-03 CLAMP ON SENSOR (100 Arms)
9661-01 CLAMP ON SENSOR (500 Arms)
9765* CLAMP ON SENSOR (5 Arms)
(See "When using Model 9765 " (p.10))
9238 CLAMP SENSOR CABLE
* Not complied with the CE marking.
Introduction
Inspection
Safety Notes
2
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 follow-
ing safety precautions.
Safety Symbols
Safety Notes
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.
In the manual, the symbol indicates
particularly important information that the user
should read before using the instrument.
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.
Indicates a grounding terminal.
Indicates DC (Direct Current).
Indicates AC (Alternating Current).
3
Safety Notes
The following symbols in this manual indicate the
relative importance of cautions and warnings.
Other Symbols
Accuracy
We define measurement tolerances in terms of f.s.
(full scale), and rdg. (reading) values, with the fol-
lowing meanings:
Indicates that incorrect operation presents an
extreme hazard that could result in serious injury
or death to the user.
Indicates that incorrect operation presents a
significant hazard that could result in serious
injury or death to the user.
Indicates that incorrect operation presents a
possibility of injury to the user or damage to the
instrument.
Indicates advisory items related to performance
or correct operation of the instrument.
Indicates the prohibited action.
❖Indicates the reference.
f.s.
(maximum display value or scale length)
The maximum displayable value or scale length.
This is usually the name of the currently selected
range.
rdg.
(reading or displayed value)
The value currently being measured and
indicated on the measuring instrument.
Safety Notes
4
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
instrument.
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 instrument (distribution panel).
Higher-numbered categories correspond to electrical
environments with greater momentary energy. So a
measurement instrument designed for CAT III environments
can endure greater momentary energy than a instrument
designed for CAT II.
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.
Measurement categories (Overvoltage categories)
5
Notes on Use
Follow these precautions to ensure safe operation
and to obtain the full benefits of the various func-
tions.
Notes on Use
• The maximum input voltage is as follows.
U INPUT: 300 Vrms, 424.3 V peak
ALARM : 30 VDC
CLAMP SENSOR INPUT
: 1.5 Vrms, 2.2 V
peak
Attempting to measure voltage in excess
of the maximum input could destroy the
instrument and result in personal injury or
death.
• The maximum rated voltage between input
terminals and ground is 300 Vrms.
Attempting to measure voltages exceeding
300 Vrms with respect to ground could
damage the instrument and result in
personal injury.
Do not allow the instrument to get wet, and do
not take measurements with wet hands.
This may cause an electric shock.
Do not use the instrument where it may be
exposed to corrosive or combustible gases.
The instrument may be damaged or cause an
explosion.
the instrument
to get wet.
Do not allow
Corrosive or
combustible
gases
Notes on Use
6
Do not use the instrument near a source of
strong electromagnetic radiation, or near a
highly electrically charged object.
These may cause a malfunction.
Operation and Installation environment.
This instrument should be installed and operated
indoors only, between 0 and 50°C (32 to 122°F)
and 80% RH or less.
This instrument 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.
When the module is used in a dusty environment,
place it in a dustproof case and take measures to
ensure heat dissipation.
Do not store or use the instrument where it
could be exposed to direct sunlight, high tem-
perature or humidity, or condensation.
Under such conditions, the instrument may be
damaged and insulation may deteriorate so that it
no longer meets specifications.
To avoid damage to the instrument, protect it
from physical shock when transporting and
handling.
Be especially careful to avoid physical shock from
dropping.
Do not obstruct the ventilation holes.
Ventilation holes for heat radiation are provided on
the top and rear panels of the instrument. Leave
sufficient space around the ventilation holes and
install the instrument with the holes unobstructed.
Installation of the instrument with the ventilation
holes obstructed may cause a malfunction or fire.
Direct sunlight
Dust
T
emperature o
r
humidity
Electromagnetic
radiation or
highly
charged object
electrically
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