IM CL360
9
Example 3 When measuring the peak current of inverter (where harmonic are
superimposed on the fundamental frequency):
Waveform after passing through high-cut filter
(1)
(2)
(3)
Input waveform
(I-V circuit output)
Rectifying
circuit input
Peak hold circuit
(Hold value)
Frequency
Selector Wave at
WIDE position
Frequency
Selector Wave at
50/60Hz position
NOTE
The indicated value at 50/60Hz may be higher than that at WIDE because of
the phase difference between superimposed harmonics and fundamental
frequency.
10
IM CL360
2.6 How to Use Data Hold Function
Push in the Data Hold button to freeze the reading. This is especially useful
for taking a reading a dimly lit or hard-to-reach locations. The display can be
observed away from the conductor. Push the button again to release the
reading.
2.7 How to Use OUTPUT terminal
AC and DC outputs can be obtained by inserting optional Model 91020 output
cord into the two-way analogue output terminal.
AC Output :
Can be monitored by connecting a digital multimeter to analogue output
terminal or observed as waveform by connecting an oscilloscope.
DC Output :
Can be monitored by connecting a digital multimeter, or a recorder, which
enables many hours of monitoring. With the CL360 in the peak hold mode,
DC voltage corresponding to 1/
2
of a peak current value can be held
and outputted.
Model 91020 (optional)
Black(COM)
Red(DC)
Blue(AC)
CAP
Note : Put a cap on the plug when not in use.
Connect to multimeter or recorder
DC output
AC output
AC output
DC output
Recorder
Oscilloscope
(connect to oscilloscope or multimeter)
Model CL360
Multimeter
OFF
IM CL360
11
3. Battery Replacement
WARNING
To avoid electric shock hazard, make sure to set the Range switch to "OFF"
and remove the test leads from the instrument before trying to replace bat-
tery.
CAUTIOIN
Make sure to install battery in correct polarity as indicated in battery com-
partment.
Replace the battery when "B" symbol appears on the LCD display.
(1) Set the Range switch to the "OFF" position.
(2) Unscrew and remove the battery compartment on the bottom of the in-
strument.
(3) Replace the battery observing correct polarity. Use a new 6F22 or 6LR61
battery.
(4) Re-place and screw the battery compartment cover.
Remove
this screw
6F22 Battery
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IM CL360
4. Specifications
Instrument Specifications
●
Measuring Ranges and Accuracy (at 23 ±10°C, 85% relative humidity or
less)
AC Current
A
Accuracy
Frequency
Ranges
Measuring
range
WIDE 50/60Hz
Time limit
for Meas-
urements
200mA 0 to 199.9mA
2A 0
to
1.999A
20A
0 to 19.99A
±1.0% rdg ±2dgt
(50/60Hz)
±3.0% rdg ±2dgt
(40 to 1kHz)
±1.5% rdg ±2dgt
200A
0 to 199.9A
±1.5% rdg ±2dgt
(50/60Hz)
±3.5% rdg± 2dgt
(40 to 1kHz)
±2.0% rdg ±2dgt
0 to 500A
±1.5% rdg ±2dgt
(50/60Hz)
±3.5% rdg ±2dgt
(40 to 1kHz)
±2.0% rdg ±2dgt
Continuous
1000A
501 to 1000A
±5% rdg (50/60Hz)
±10% rdg (40 to 1kHz)
±5.5% rdg
10min.
Typical frequency characteristics
for 2A and higher ranges with the
frequency selector switch at WIDE
position.
Typical characteristics for 200mA
range with the frequency selector
switch at WIDE position.
All ranges
With the frequency selector switch
set at 50/60Hz position to cut off
higher frequencies -24dB/oct
Erro
rs
as
a
gi
n
st readi
ng
a
t 50H
z (
%
)
1000A range
A
tte
nu
at
io
n (
d
B
)
Frequency (Hz)
