Kyoritsu KEW 8121 Manual de Usario

Kyoritsu Equipo de medición KEW 8121

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1. Safety warnings
○ This instrument has been designed, manufactured and tested
according to IEC 61010: Safety requirements for Electronic Measuring
apparatus, and delivered in the best condition after passing quality
control tests. This instruction manual contains warnings and safety
rules which have to be observed by the user to ensure safe operation
of the instrument and to maintain it in safe condition.
  Therefore, read through these operating instructions before using the
instrument.
# WARNING
● Read through and understand instructions contained in this
manual before using the instrument.
● Keep the manual at hand to enable quick reference whenever
necessary.
● The instrument is to be used only in its intended applications.
  The operating instructions described in the manual must be
observed.
● Understand and follow all the safety instructions contained in the
manual.
It is essential that the above instructions are adhered to. Failure to
follow the above instructions may cause injury and or instrument
damage.
Kyoritsu is by no means liable for any damage resulting from the
instrument in contradiction to this cautionary note.
The symbol indicated on the instrument, means that the user #
must refer to the related parts in the manual for safe operation of the
instrument. It is essential to read the instructions wherever the symbol #
appears in the manual.
# DANGER is reserved for conditions and actions that are likely to
cause serious or fatal injury.
# WARNING is reserved for conditions and actions that can cause
serious or fatal Injury.
# CAUTION is reserved for conditions and actions that can cause
minor injury or instrument damage.
INSTRUCTION MANUAL
CLAMP SENSOR Series
KEW 8121/8122/8123
CLAMP SENSOR
# DANGER
● Never make measurement on a circuit in which the electrical
potential exceeds AC300V when using KEW 8121 and AC600V
using KEW 8122 and 8123.
● Do not make measurement w hen t hunder rumbling. If the
instrument is in use, stop the measurement immediately and
remove the instrument from the equipment under test.
● Do not attempt to make measurement in the presence of flammable
gasses.
  Otherwise, the use of the instrument may cause sparking, which
can lead to an explosion.
● Use insulated protective gears, such as insulated gloves, for your
safety when possible electric shock hazards are concerned.
● The transformer jaws are made of metal and their tips are not
completely insulated. Be especially careful about the possible
shorting where the measured object has exposed metal parts.
● Never use these sensors when their surface or your hand is wet.
  Do not wet the output connectors because they aren t dust/ water-
proof.
●
Do not exceed the maximum allowable input of any measuring range.
  Keep y our f i ngers and hands behind t h e barrier d u ring a
measurement.
# WARNING
● Never attempt to make any measurement, if any abnormal
conditions are noted, such as broken case, and exposed metal
parts.
● Do not install substitute parts or make any modification to the
instrument.
  Return the instrument to your local Kyoritsu distributor for repair or
re-calibration in case of suspected faulty operation.
● Always keep your fingers and hands behind the barrier on the
instrument to avoid the possible shock hazard.
# CAUTION
● Do not step on or pinch the cord to prevent the jacket of cord from
being damaged.
● The output connector shall be removed or connected without
clamping a conductor. Otherwise, it may cause a failure.
● Do not expose the instrument to direct sunlight, high temperatures,
humidity or dew.
● Never give shocks, such as vibration or drop, which may damage
the instrument.
● Use a damp cloth and mild detergent for cleaning the instrument.
Do not use abrasives or solvents.
Safety symbols
#Refer to the instructions in the manual.
Indicates instruments with double or reinforced
insulation.
Indicates that this instrument can clamp on live
bare conductors when the voltage to be tested is
below Circuit - Ground-to-Earth voltage against the
indicated Measurement Category.
Indicates AC
○Measurement Category:
  To ensure safe operation of measuring instruments, IEC 61010
establishes safety standards for various electrical environments,
categorized as O to CAT IV, and called measurement categories.
Higher-numbered categories correspond to electrical environments
with greater momentary energy, so a measuring instrument designed
for CAT III environments can endure greater momentary energy than
one designed for CAT II.
O : Circuits which are not directly connected to the mains power
supply.
CAT II : Electrical circuits of equipment connected to an AC electrical
outlet by a power cord.
CAT III : Primary electrical circuits of the equipment 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 over-current protection device
(distribution panel).
2. Features
● Clamp sensor for recording apparatus
● Designed to international safety standard IEC 61010-2-032 (Pollution
Degree 2)
KEW 8121 CAT.III 300V
KEW 8122 /8123 CAT.III 600V
3. Instrument layout
Barrier：It is a part providing protection against electrical shock and
ensuring the minimum required air and creepage distances.
4. DIN plug pin assignment
3: GND pin
5: Output signal pin
6: Sensor Signal pin
（Resistance between 3Pin and 6Pin:
8121:62k 8122:11k 8123:24kΩ  Ω  Ω）
1, 2 and 4: No use
* Lower figure shows the pin assignment seeing the Clamp sensor from output
connector part. The figure of the pin assignment of connection terminal is
symmetrical to lower figure.
KEW 8121 KEW 8122 KEW 8123
Transform Jaws Barrier Trigger Cable Output connector
Conductor
6. Specifications
Model KEW 8121 KEW 8122 KEW 8123
Rated current AC100Arms(141Apeak) AC500Arms(707Apeak) AC1000Arms(1414Apeak)
Output voltage AC0 ~ 500mV
(AC500mV/AC100A):5mV/A
AC0 ~ 500mV
(AC500mV/AC500A):1mV/A
AC0 ~ 500mV
(AC500mV/AC1000A):0.5mV/A
Measuring range AC0 ~ 100A AC0 ~ 500A AC0 ~ 1000A
Accuracy
(Input: sine wave) ±2.0%rdg±0.3mV(50/60Hz)
±3.0%rdg±0.5mV(40 ~ 1kHz) ±2.0%rdg±0.3mV(50/60Hz)
±3.0%rdg±0.5mV(40 ~ 1kHz) ±2.0%rdg±0.3mV(50/60Hz)
±3.0%rdg±0.5mV(40 ~ 1kHz)
Temperature &
humidity range
(Guaranteed
accuracy)
23±5ºC, relative humidity: 85% or less (no condensation)
Operating
temperature range 0 ~ 40ºC, relative humidity: 85% or less (no condensation)
Storage temperature
range -20 ~ 60ºC, relative humidity: 85% or less (no condensation)
Maximum
permissible input AC100Arms continuous(50/60Hz) AC500Arms continuous (50/60Hz) AC1000Arms continuous (50/60Hz)
Output impedance Approx. 9.5 Approx. 1.9 Approx. 1.5Ω Ω Ω
Location for use Altitude up to 2000m, Indoors
Applicable standards
IEC 61010-1, IEC 61010-2-032
Measurement CAT III (300Vrms)
Pollution degree 2
IEC 61326-1(EMC)
IEC 61010-1, IEC 61010-2-032
Measurement CAT III (600Vrms) Pollution degree 2
IEC 61326-1(EMC)
Environmental standards
EU RoHS Directive compliant
Withstand voltage
AC3470Vrms (50/60Hz)for 5 sec.
between Jaw and enclosure
between enclosure and output connector
between Jaw and output connector
AC5160Vrms (50/60Hz)for 5 sec.
between Jaw and enclosure
between enclosure and output connector
between Jaw and output connector
Insulation resistance
50M or greater at 1000VΩ
between Jaw and enclosure
between enclosure and output connector
between Jaw and output connector
Conductor Size Approx.24mm in diameter (max.) Approx.40mm in diameter (max.) Approx.55mm in diameter (max.)
Dimension 97(L)×59(W)×26(D)mm 128(L)×81(W)×36(D)mm 170(L)×105(W)×48(D)mm
Cable length Approx. 2m
Output connector MINI DIN 6PIN
Weight Approx. 150g Approx. 260g Approx. 360g
Accessories Instruction manual
Cable marker
Option MODEL 7146 (Banana A4 adjuster plug)Φ
MODEL 7147 (Extension Cable)
DISTRIBUTOR
Kyoritsu reserves the rights to change specifications or designs
described in this manual without notice and without obligations.
5. Operating instructions
# DANGER
● Never make measurement on a circuit in which the electrical
potential exceeds AC300V when using KEW 8121 and AC600V
using KEW 8122 and 8123 in order to avoid possible shock hazard.
● The transformer jaws are made of metal and their tips are not
completely insulated. Be especially careful about the possible
shorting where the measured object has exposed metal parts.
# CAUTION
● Take sufficient care to avoid shock, vibration or excessive force
when handling the instrument. Otherwise, precisely adjusted
transformer jaws will be damaged.
● When transformer jaws do not fully close, never try to close them
by force, but make them free to move and try again. If a foreign
substance is stuck in the jaw tips, remove it.
● Do not force to open the Transformer jaws when they are frozen.
● When making current measurements, keep the transformer jaws
fully closed.
  Otherwise, accurate measurements cannot be taken.
  Maximum conductor size is as follows.
   KEW 8121 : 24mm in diameter
   KEW 8122 : 40mm in diameter
   KEW 8123 : 55mm in diameter
● Hold the inserting part (except for the cable) and disconnect the
Output connector from the measuring instrument so as not to
cause a break in the cord.
Measurement procedures
 (1) Connect the Output connector to the Input terminal of the
measuring instrument.
 (2) Press the Trigger to open the transformer jaws and clamp onto one
conductor.
   Clamped c onductor should be at the center of the closed
transformer jaws.
 (3) Ensure that the tips of transformer jaws are firmly closed.
KYORITSU ELECTRICAL INSTRUMENTS
WORKS, LTD.
3-22 92-1897D
Incoming wire
Ｏ:Device which is
not directly
connected to the
mains power supply
Socket
Interior wiring

Especificaciones del producto

Marca: Kyoritsu
Categoría: Equipo de medición
Modelo: KEW 8121

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