KYORITSU 8143 - Manual

INSTRUCTION MANUAL
MODEL 8141／8142／8143
LEAKAGE CLAMP SENSOR Series
LEAKAGE CLAMP SENSOR
MODEL 8143 MODEL 8142 MODEL 8141
KYORITSU ELECTRICAL INSTRUMENTS WORKS, LTD.,
TOKYO, JAPAN
1. SAFETY WARNINGS
This instrument has been designed and tested according to IEC
Publication 61010:Safety Requirements for Electronic Measuring
Apparatus. This instruction manual contains warnings and safety
rules which must be observed by the user to ensure safe
operation of the instrument and to retain it in safe condition.
Therefore, read through these operating instructions before
starting using the instrument.
WARNING
● Read through and understand instructions contained in this
manual before starting to use the instrument.
● Save and keep the manual at hand to enable quick reference
whenever necessary.
● Be sure to use the instrument only in its intended applications
and to follow measurement procedures described in the
manual.
● Be sure to understand and follow all safety instructions
contained in the manual.
Not following the above instructions may cause injury, instrument
damage and/or damage to equipment under test.
The symbol indicated on the instrument means that the user
must refer to related parts of the manual for safe operation of
the instrument. Be sure to carefully read the instructions
following each symbol in this 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.
DANGER
● Never make measurement on a circuit having potential of
300VAC or greater.
● Do not attempt to make measurement in the presence of
flammable gasses. Otherwise, the use of the instrument may
cause sparking, which leads to an explosion.
● The transformer jaws are made of metal and their tips are not
completely insulated. Be especially careful about the possible
shorting where the equipment under test has exposed metal
parts.
● Never attempt to use the instrument if its surface or your hand
is wet.
● Do not exceed the maximum allowable input of any
measurement range.
WARNING
● Never attempt to make any measurement, if any abnormal
conditions are noted, such as broken case, cracked test leads
and exposed metal parts.
● Do not install substitute parts or make any modification to the
instrument. Return the instrument to Kyoritsu or your distributor
for repair or re- calibration.
CAUTION
● Not to step on or pinch the cord, or it may damage the jacket of
cord.
● The output connector shall be removed or connected while the
measured conductor are not being clamped. Otherwise, it may
cause a trouble.
● Do not expose the instrument to the direct sun, extreme
temperatures or dew fall.
● Not to give shocks, such as vibration or drop, which may
damage the instrument.
● Use a damp cloth and detergent for cleaning the instrument. Do
not use abrasives or solvents.
2. FEATURES
● Clamp sensor for AC leakage current measurement.
● Designed to safety standard IEC 61010- 2- 032:
over- voltage CAT.III,300V and pollution degree 2.
3. SPECIFICATIONS
Rated current AC1000mA
Output voltage AC0∼100mV (AC100mV/1000mA)
Measuring ranges and accuracy
Temperature and Humidity Ranges(guaranteed
accuracy):
23℃±5℃,relative humidity 85% or
less (without condensation)
Operating Temperature and Humidity Ranges:
0 ∼ 50℃,relative humidity 85% or less
(without condensation)
Storage Temperature and Humidity Ranges
-20 ∼ 60℃,relative humidity 85% or less
(without condensation)
Maximum permissible input
M-8141:100A continuous(50/60Hz)
M-8142:200A continuous(50/60Hz)
M-8143:500A continuous(50/60Hz)
※ Above values are the limit values that only
permitted at wrong operation of the instrument,
and the outputs are out of guaranteed accuracy.
Measuring Range Accuracy (Frequency range)
0∼1000mA ±1.0％rdg±0.1mV(50/60Hz)
±2.0％rdg±0.1mV(40∼1kHz)
Output impedance
M-8141:Approx.180Ω
M-8142:Approx.200Ω
M-8143:Approx.120Ω
Location for use Altitude up to 2000m, Indoors
Safety Standard IEC 61010- 1,IEC 61010- 2- 032
over- voltage CAT.III,300V,pollution
degree 2
IEC 61326 (EMC)
Withstand Voltage 3700Vrms (50/60Hz) for 1 minute
between Jaw and enclosure
between Jaw and output connector
between enclosure and output
connector
Insulation Resistance
50MΩor greater at 1000V
between Jaw and enclosure
between Jaw and output connector
between enclosure and output
connector
Conductor Size M-8141:Approx.24mm in diameter max.
M-8142:Approx.40mm in diameter max.
M-8143:Approx.68mm in diameter max.
Dimensions M-8141:100(L)x60(W)x26(D)mm
(excluding protrusions)
M-8142:128(L)x81(W)x36(D)mm
(excluding protrusions)
M-8143:186(L)x129(W)x53(D)mm
(excluding protrusions)
Cable length Approx. 2m
Output connector MINI DIN 6PIN
92―1583 03―04
DISTRIBUTOR
KYORITSU ELECTRICAL INSTRUMENTS
WORKS, LTD．
No.5-20, Nakane 2― chome, Meguro-ku,
Tokyo, 152-0031 Japan
Phone：
（03） 3723― 0131 Fax： （03）3723― 0152
URL：http://www.kew-ltd.co.jp
E-mail：[email protected]
Factories：Uwajima＆Ehime
Kyoritsu reserves the rights to change specifications or designs
described in this manual without notice and without obligations.
Weight M-8141:Approx.150g
M-8142:Approx.240g
M-8143:Approx.490g
Accessories Carrying case
Instruction manual
4. INSTRUMENT LAYOUT
Transform Jaws Trigger Cable Output connector
5. DIN Plug pin assignment
※Above figure shows the pin assignment seeing the Clamp
sensor from output terminal part. The figure of the pin
assignment of connection terminal is symmetrical to above
figure.
6. OPERATING INSTRUCTIONS
DANGER
● In order to avoid possible shock hazard, never make measurement
on circuits having a potential of 300VAC or greater.
● The transformer jaws are made of metal and their tips are not
completely insulated. Be especially careful about the possible
shorting where the equipment under test has exposed metal parts.
5
3
1 2
4
6
3: GND pin
5: Output signal pin
pin1,2,4 and 6:No use
CAUTION
● Take sufficient care to not to apply shock, vibration or
excessive force to the jaw tips. Otherwise, precisely adjusted
the jaw tips will be damaged.
● When a foreign substance is stuck in the jaw tips or they
cannot properly engage, the transformer jaws do not fully
close. In such a case, do not release the trigger abruptly or
attempt to close the transformer jaws by applying external
force. Make sure that the transformer jaws close by
themselves after removing the foreign substance or making
them free to move.
● Max. diameter of measured object: Φ24mm for M8141, Φ
40mm for M8142, Φ68mm for M8143. Accurate measurement
cannot be made on a conductor larger than this, because the
transformer jaws cannot fully close.
● When removing the cable from the instrument, grasp the
output connector, not the cable, to avoid damaging the cable.
● When measuring current which pulse element is superposed,
differences of the indicated value may be caused between
ranges, if the peak value exceeds the measurement range to a
large extent. In this case, the reading at the bigger range
should be taken as a right value. Sensitive transformer jaws
are used for Leakage clamp meter. Because of the
characteristics of transformer jaws, which can be opened and
closed, it is impossible to eliminate the interference of external
magnetic field completely. If there is a presence of strong
magnetic field, use the instrument at a distance as far as
possible from it.
Following are the typical things generating magnetic field.
● Conductor fed large current
● Motor
● Equipment which has magnet
● Integrating wattmeter
6 - 1 Measuring method
(1) Connect the output connector to the terminal of the instrument.
(2) Press the trigger to open the transformer jaws and close them over
measured conductor.
(3) Make sure that the jaw tips are fully closed.
6 - 2 Leakage Current Measurement
(1) Measuring out of balance leakage current (See Fig.1):
Clamp onto all conductors except a grounded wire.
(2) Measuring earth leakage current (See Fig.2):
Clamp onto a grounded wire.
Fig.1 Measuring out of balance leakage current
Fig.2 Measuring earth leakage current
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Grounded wire
3- phase 3- wire system
(In 4- wire system with neutral,
clamp onto all 4 wires) Single- phase 2- wire system
(In 3- wire system with neutral,
clamp onto all 3 wires)
Ｌｏａｄ Ｌｏａｄ