Hioki 2301-20 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................ 15
1.4 Dimension Diagrams ................................. 17
Chapter 2 Settings 19
2.1 Setting the Module ID................................ 19
Chapter 3 Preparations 21
3.1 Installing the Module ................................. 21
3.1.1 Installing the Module Base............. 21
3.1.2 Mounting a Module on the Module
Base.............................................. 21
3.2 Connecting Input/Output Cables ............... 22
3.2.1 Connecting Sensor Cables to the
Terminal block................................ 22
3.2.2 Connecting Cables to the ALARM
Terminal (Alarm output) ................. 24
3.2.3 The Location of the Input/Output
Cable.............................................. 25
Contents
ii
Chapter 4 Others 26
4.1 Alarm output.............................................. 26
4.1.1 Output Rating................................. 26
4.1.2 Internal Circuit................................ 27
4.2 Insulation of Internal Circuit....................... 29
Chapter 5 Specifications 31
5.1 Basic Specifications .................................. 31
5.2 Function Specifications ............................. 32
5.3 General Specifications .............................. 33
5.4 9764 HUMIDIDTY SENSOR
Specifications ............................................ 34
Chapter 6 Maintenance and Service 37
6.1 Cleaning .................................................... 37
6.2 Service ...................................................... 37
1
Introduction
Thank you for purchasing the HIOKI “Model 2301-
20 HUMIDITY MODULE”. To obtain maximum per-
formance from the instrument, please read this
manual first, and keep it handy for future refer-
ence.
When you receive the instrument, inspect it care-
fully 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
Ferrite clamp.....................................................1
Terminal block...................................................3
Option
9764 HUMIDIDTY SENSOR
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 ship-
ment. 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 precau-
tions 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 particu-
larly important information that the user should
read before using the instrument.
The symbol printed on the instrument indi-
cates that the user should refer to a correspond-
ing topic in the manual (marked with the
symbol) before using the relevant function.
Indicates DC (Direct Current).
3
Safety Notes
The following symbols in this manual indicate the
relative importance of cautions and warnings.
Other Symbols
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 sig-
nificant hazard that could result in serious injury
or death to the user.
Indicates that incorrect operation presents a pos-
sibility 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.
Safety Notes
4
This instrument complies with CAT I safety requirements.
To ensure safe operation of measurement instruments, IEC
61010 establishes safety standards for various electrical en-
vironments, categorized as CAT I to CAT IV, and called mea-
surement categories. These are defined as follows.
CAT I Secondary electrical circuits connected to an AC
electrical outlet through a transformer or similar in-
strument.
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 out-
lets.
CAT IV The circuit from the service drop to the service en-
trance, and to the power meter and primary overcur-
rent protection instrument (distribution panel).
Higher-numbered categories correspond to electrical environ-
ments with greater momentary energy. So a measurement in-
strument designed for CAT III environments can endure
greater momentary energy than a instrument designed for
CAT II.
Using a measurement instrument in an environment designat-
ed with a higher-numbered category than that for which the in-
strument 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
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.
Do not allow the instrument to get wet, and do
not take measurements with wet hands.
The instrument may be damaged.
Do not use the instrument where it may be
exposed to corrosive or combustible gases.
The instrument may be damaged.
Do not use the instrument near a source of
strong electromagnetic radiation, or near a
highly electrically charged object.
These may cause a malfunction.
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.
the instrument
to get wet.
Do not allow
Corrosive or
combustible
gases
Electromagnetic
radiation or
highly electricall
y
charged object
Notes on Use
6
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.
When using the instrument in the case, drill
ventilation holes.
Drill ventilation holes or install a ventilation fan to
prevent heat buildup.
Use the 9764 HUMIDIDTY SENSOR
To avoid damaging the 2301-20, only connect the
9764 HUMIDIDTY SENSOR to the TEMP and
HUM terminals. Moreover, do not input other sig-
nals to these terminals.
Direct sunlight
Dust
Temperature or
humidity
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