User Manual

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Model 8112 Instruction Manual
Model 8112 clamp adaptor is designed to be an AC current / voltage conversion probe capable of measuring
AC current from 0.1mA to 80A in conjunction 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.
It also features safety design throughout with no exposed metal parts.
Specifications:
Range Switch
Position
Input Output Accuracy
Frequency
Range
0 – 0.5A AC 0 – 500mV AC ±1.5% of output ±0.2mV 50Hz–1kHz
200mA / 200mV
(1mA / mV)
0 – 1A AC 0 – 1000mV AC ±3.0% of output ±0.4mV 40Hz–10kHz
±1.0% of output ±0.1mV 40Hz–1kHz
2A / 200mV
(10mA / mV)
0 – 20A AC 0 – 2000mV AC
±1.5% of output ±0.2mV 1kHz–10kHz
±1.0% of output ±0.1mV 40Hz–1kHz
0 – 20A AC 0 – 200mV AC
±1.5% of output ±0.2mV 1kHz–10kHz
20 – 40A AC 200mV – 400mV AC ±2.5% of output 50Hz–10kHz
20A / 200mV
(100mA / mV)
40 – 80A AC 400mV – 800mV AC ±2.5% of output 100Hz–10kHz
Output Impedance – 2k ohms
Frequency Characteristics – Within ±3dB at 30Hz to 100kHz
Maximum Voltage of Circuit under test – 500V (DC + AC peak when transformer jaws closed)
Output Cord – Insulated, approx. 1.5m long, 3.9mm diameter and terminated with banana plug with barrier.
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 8112 or the voltmeter according to the current being measured.
Read the current as follows:
Model 8112 set at: AC Voltmeter set at: How to read:
200mA 200mV (e.g.) Read directly (in milliamps)
2A 200mV (e.g.) Divide reading by 100 (read in amps)
20A 200mV (e.g.) Divide reading by 10 (read in amps)