Model 8112 Instruction Manua
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Model 8112 clamp adaptor is designed to be an AC current / voltage conversion probe
capable of measuring
AC current from 0.1mA to 120A in con junction with high sensitivity AC voltmeters.
It is especially useful for digital multimeters.
Simple to operate, the unit has range switch position at 200mA, 2A and 20A.
Specifications:
Range
Switch
Position
200mA /
200mV
(1mA / mV)
2A /
200mV
(10mA /
mV)
20A /
200mV
(100mA /
mV)
Input Output Accuracy
AC 0～
500mA
AC 0～
1000mA
AC 0～20A 0 – 2000mV AC
AC 0～20A 0 – 200mV AC
AC 20～60A
AC 60～120A
0 – 500mV AC
0 – 1000mV AC
200mV – 600mV
AC
600mV –1200mV
AC
±1.5%rdg ±
0.2mA
±3.0%rdg ±
0.4mA
±1.0%rdg ±
1mA
± 1.5%rdg ±
2mA
1.0%rdg
±
0.01A
±2.5%rdg 50Hz–10kHz
2.5%rdg
±
Output Impedance – 2k ohms
Frequency Characteristics – Within ±3dB at 30Hz to 100kHz
Maximum Volt age of Circuit under t est –CA T.Ⅱ 100V
Output Cord – Insulated, approx. 1.5m long , 3.9mm diameter and terminat ed with banana
plug with barrier.
±
Frequency
Range
50Hz–1kHz
40Hz–10kHz
40Hz–1kHz
1kHz–10kHz
40Hz–1kHz
100Hz–
10kHz
Operating Instructions:
After connecting Model 8112 to the voltmeter pull the jaw lever down to open the
transformer jaws and clamp onto a current carrying conductor .
The voltmeter reads the current measured.
Change the range switch position on Model 81 12 or the voltmeter according to the current
being measured.
Read the current as follows:
Model 8112 se t at
200mA
2A
20A
T o give further ex amples of how to take rea dings:
(1) When 100mA is measured with range switch (Model 8112) set to 200mA the voltmeter
reads 100.0mV at 200mV range or 0.100V at 2V range.
(2) When 1A is measured with range switch set to 2A the voltmeter reads 100.0mV at
200mV range or 0.100V at 2V range.
(3) When 10A is measured with range switch set to 20A the volt meter reads 100.0mV at
200mV range or 0.100V at 2V range.
AC Voltmeter set at How to read
200mV (e.g.) Read directly (in milliamps)
200mV (e.g.) Divide reading by 100 (read in amps)
200mV (e.g.) Divide reading by 10 (read in amps)
2-08
Kyoritsu reserves the rights to change specifications or design
described in this manual without notice and without obligations.
Instrument Layout:
Transformer Jaws Jaw Lever Range switch
Notes:
Although the maximum voltage of the circuit under test is specified as CAT.Ⅱ 100V when
the transformer jaws are closed, exercise caution not to bring the metallic section (jaw
dovetail) of the jaws in contact with a bare conductor under test.
A reading error may develop when the jaws are not fully close d.
A strong external magnetic field in proximity to the clamp adaptor will affect the current
reading.
Try to minimize this ef fect by changing the position or orientation of the c lamp adaptor .
Arrow mark on the jaw indicates the polarity of output relative to the current
flowing through the conductor.
Output is positive (+) when the current flows into the arrowed directio n.
92-1807B
Banana Plug (with barrier)
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