INSTRUCTION MANUAL AC/DC CLAMP ADAPTOR KEW SNAP SERIES MODEL 8113 KYORITSU ELECTRICAL INSTRUMENTS WORKS, LTD.
Contents Page 1. Features................................................................................. 1 2. Specifications......................................................................... 2 3. Safety Notes.......................................................................... 4 4. Instrument Layout.................................................................. 6 5. Measuring Method................................................................. 7 5-1. Preparation..........................
1. Features ● Model 8113 is a clamp-on AC/DC current/voltage converter that permits AC/DC current measurements from 1mA to 200A in conjunction with a voltmeter having 0.1mV resolution. ● It has 5A, 50A and 200A AC/DC measuring ranges. Output voltage is 500mV full scale for 5/50A ranges and 200mV for 200A range. For current measurements, select a 200 mV multimeter (3-1/2 digit digital readout) range and 1mA will be indicated as 0.1mV and 199.9A as 199.
2. Specifications Output Voltage: Measuring Ranges 0− 5A DC 0− 50A DC 0−200A DC AC Current 0− 5A AC 0− 50A AC 0−200A AC DC Current Output 0−500.0mV DC(100mV/A) 0−500.0mV DC( 10mV/A) 0−200.0mV DC( 1mV/A) 0−500.0mV AC(100mV/A) 0−500.0mV AC( 10mV/A) 0−200.0mV AC( 1mV/A) Accuracy: Measuring Ranges 0− 5A DC 0− 50A DC 0−150A DC 150−200A DC AC Current 0− 5A AC 0− 50A AC 0−150A AC 150−200A DC DC Current Accuracy ±(1.5%rdg+5mA) ±(1.0%rdg+0.02A) ±(1.5%rdg+0.2A) ±3.0%rdg ±(2.0%rdg+5mA) DC-1kHz ±(1.5%rdg+0.
Low Battery Warning : Current Consumption : Battery Life : Overload Protection : Withstand Voltage : Insulation Resistance : Conductor Size : Dimensions : Weight : Accessories : Power indication lamp flashes at a longer interval when batteries become exhausted and finally stops flashing at approx. 2.2V. Approx. 10mA 90hours on continuous use(for manganese batteries) ＜500A AC, DC 1000V AC for one minute between electrical circuit and housing case or metal section of transformer jaws.
3. Safety Notes This instruction manual contains warnings and safety rules that must be observed by the user to ensure safe operation of the instrument and retain it in safe condition. Therefore, read these operating instructions thoroughly and completely before using the instrument. Pay particular attention to all WARNINGS and CAUTIONS in this instruction manual.
might be at ground potential. Keep your body isolated from ground by using dry clothing, rubber shoes, rubber mats, or any approved insulating material. 5. DO NOT make battery replacement with power switch set to ON position and test leads connected to instrument. 6. DO NOT use Model 8113 on a circuit with a voltage of higher than 600V AC. 7. DO NOT expose it to the direct sun, extremes of temperature and humidity or dew fall. CAUTIONS 1.
4. Instrument Layout 1 Transformer Jaws Pick up current flowing through the conductor. 2 Jaw Trigger Operates the transformer jaws. Press to open the jaws. 3 DC Zero Adj. Knob Zero adjusts on DC current ranges. 4 Power Switch Turns power on and off. 5 Range Selector Switch Selects 2A, 20A or 200A range position. 6 Battery Indicator LED starts flashing when the power switch is turned on. It flashes at a longer interval when the battery voltage becomes exhausted and finally stops flashing at approx. 2.2V.
5. Measuring Method BEFORE USING THE ADAPTOR, READ THE SAFETY NOTES CAREFULLY AND THOROUGHLY. 5-1. Preparation (1) Remove the battery compartment cover and install the batteries. Refer to section 6 for battery replacement. (2) A DC voltmeter or AC voltmeter is required for DC or AC current measurement. Connect the output cords to the input terminals of the voltmeter.
(2) Refer to Table 1 for output voltage against input. Set the multimeter to the appropriate range. When using a digital multimeter(3-1/2 digit), select the 200mV DC or 2V DC range. Table 1 Range Switch Output Voltage Position 2A DC 0−500.0mV(100mV/A) against 0−5A DC input 0−500.0mV(10mV/A) against 0−50A DC input 20A DC 0−200.0mV(1mV/A) against 0−200A DC input 200A DC Note : Measurements can be made up to 5A at the 2A range position and up to 50A at the 20A range position.
(5) In case of DC current measurement, output is positive when the current flows from the upside to the underside of the clamp adaptor as shown in Fig.2. 5-2-2 AC current measurements (2A, 20A&200A ranges) Note : For AC current measurements, input waveform will be available at the output jack, DC coupled and without distortion. Therefore, true RMS measurements would be possible using a true RMS reading AC Voltmeter.
NOTE : TO MEET VARIOUS APPLICATION NEEDS, THE 8113 IS DESIGNED TO BE HIGHLY SENSITIVE ON THE 2A RANGE, RESULTING IN RESIDUAL OUTPUT NOISE EQUIVALENT TO ±2mV APPROX. HOWEVER, THIS DOES NOT INDICATE ANY FAULTY CONDITION. IN CASE OF DC CURRENT, EARTH MAGNETISM AFFECTS MEASUREMENTS. THEREFORE, THE READING WILL SLIGHTLY VARY DEPENDING ON THE ORIENTATION OF THE 8113 IN USE. TO MAKE PRECISE MEASUREMENT, IT IS A RECOMMENDED PROCEDURE TO ZERO ADJUST THE 8113 EVERY TIME ITS ORIENTATION IS CHANGED.
7. Optional Accessories 7-1 Model 8021 KEW ENERGIZER Model 8021 ENERGIZER permits Model 8113 to make AC current and voltage measurements of household electrical appliances which are normally furnished with “twin” conductor line cords and plugs for household power outlets. Incorporated into this energizer is a coil to multiply the current by 1, 5 and 10 and a voltage check terminal.
7-2 Model 8008 MULTI-TRAN Model 8008 MULTI-TRAN is designed to measure AC current higher than 200A or large bus-bars ( up to 150×100mm) and conductors(up to 100mm diameter). (1) As shown in Fig.5, open the transformer jaws of Model 8113 and close them over the pickup coil of Model 8008 MULTI-TRAN to measure up to 2000A AC. (2) Since the input to output ratio is 10 to 1, multiply the output by 10 and take the current reading (Fig.5).
Kyoritsu reserves the right to change specifications or designs described in this manual without notice and without obligations.
DISTRIBUTOR 92―1152A Printed in Japan
