Capable of measuring AC and DC current up to 100A
with the newly developed open current tester
Capable of measuring AC and DC current up to 100A
with the newly developed open current tester
• True RMS reading is an essential feature for accurate measurement (see rear page).
• " Non Contact " voltage function indicates the presence of AC voltage by warning
the user with an audible signal.
• Set the DC current range to zero in one touch with the Zero Adjust function
• Auto Power Off
• Data Hold (AC A / DC A only)
• Designed to international safety standard IEC61010-1 CAT.
3 300V
( Actual Size )( Actual Size )
MODEL 2300R
KEW FORK 2300R can be used in crowded connection boxes, where cables are very short,
and space is too limited to clamp cables using with a traditional clamp meter.
KEW FORK
Instrument Layout
True RMS (Root Mean Square value) Measurement
Specifications
Function Switch
LCD Display
Data Hold/DC Zer
o Adjust Button
Fork Core
Range
Current Measurement
Conductor Size
Non Contact Voltage
Dimensions
Crest Factor
Weight
Maximum Digit
Safety Standard
Power Source
Accessories
(press for 2 seconds)
(Compared to the true RMS value tester, measurement values for
the averaging value generate more than 30% errors in some cases.)
AC A 0 to 100.0A
DC A 0 to ±100.0A
Detect AC voltage
without contacting
with socket wire
Max Ø10mm
161.3(L)
× 40.2(W) × 30.3(D)
2.5
110g (with batteries)
1,049
IEC 61010-1 CAT.
3 300V; Pollution Degree 2
R03 (AAA)
× 2
Instruction Manual, R03 (AAA)
× 2, Carrying Case
±2.0%rdg±5dgt(50/60Hz)
±2.0%rdg±5dgt
During voltage detection,
"Hi" flashes and
a buzzer sounds intermittently
Measuring Range Accuracy
Due to the use of thyristors, inverters and other
energy-saving controllers in recent electric wiring,
current waveforms often include harmonic
components and are distorted compared to
sinusoidal waves (50/60Hz).
The Kyoritsu True RMS value tester is able to
measure distorted waveforms using true RMS
since waveforms are being internally calculated
continuously. In contrast, when measurements
are made with a averaging value tester, errors are
generated in the measurement value because the
tester cannot continuously track distorted
waveforms.
Crest Factor
The ratio of peak value to root mean square value,
expressing the dynamic range. The crest factor on an
undistorted sinusoidal wave is 1.41. Any value outside of this
means that the waveform is considered to be distorted.
True RMS Value
Averaging Value
When load current is not affected by the distortion, both averaging value type and true RMS (root mean square) type clamp meters
show the almost same value of about 10A with constant wave-form as the above display samples. However, when load current is
affected by some distortions such as inverter, etc,averaging value type clamp meter indicates 5.5A instead of 9.7A and true RMS type
clamp meter indicates 7.9A instead of 9.7A with irregular wave-form. Accordingly, true RMS type clamp meter is recommendable for the
measurement of the equipment with inverter
control devices.
Safety Warnings :
Please read the "Safety Warnings" in the instruction manual supplied with the instrument thoroughly and
completely for correct use. Failure to follow the safety rules can cause fire, trouble, electrical shock, etc. Therefore,
make sure to operate the instrument on a correct power supply and voltage rating marked on each instrument.
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