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1 1) SAFETY This manual contains information and warnings that must be followed for operating the instrument safely and maintaining the instrument in a safe operating condition. If the instrument is used in a manner not specified by the manufacturer, the protection provided by the instrument may be impaired. The meter meets the requirements for double insulation to IEC61010-2-032(2002), EN61010-2-032(2002), UL61010B-2-032(2003): Category III 600 Volts ac and dc.
2 WARNING To reduce the risk of fire or electric shock, do not expose this product to rain or moisture. The meter is intended only for indoor use. To avoid electrical shock hazard, observe the proper safety precautions when working with voltages above 60 VDC or 30 VAC rms. These voltage levels pose a potential shock hazard to the user. Keep your hands/fingers behind the hand/finger barriers, of the meter and the test leads, that indicate the limits of safe access of the hand-held part during measurement.
3 3) PRODUCT DESCRIPTION This user's manual uses only representative model(s) for illustrations. Please refer specification details for function availability to each model.
4) OPERATION 4 DC Voltage and AC Voltage functions Inputs are made through the test lead terminals. Note: DC 400.0mV range is designed with 1000MΩ high input impedance for least current drain in measuring small signals, and can cope better with most commercially available voltage output transducers/adapters. The non-zero display reading is normal when the meter inputs are open circuit, which will not affect actual measurement accuracy.
5 ACA & DCA Current clamp-on function Inputs are made through the clamp jaws for non-invasive ACA & DCA current measurements. CAUTION (Application and removal of the Clamp-on meter) Press the jaw trigger and clamp the jaws around only one single conductor of a circuit for load current measurement. Make sure the jaws are completely closed, or else it will introduce measurement errors.
6 CAUTION Using Resistance, Continuity or Diode function in a live circuit will produce false results and may damage the instrument. In many cases the suspected component must be disconnected from the circuit to obtain an accurate measurement reading Ω Resistance, and Continuity functions Inputs are made through the test leads terminals. Slide-switch on defaults at Ω. Press Continuity function which is convenient for SELECT button momentarily to select checking wiring connections and operation of switches.
7 Capacitance function Inputs are made through the test leads terminals. Slide-switch on defaults at Ω. Press Capacitance function. Relative zero SELECT button momentarily 3 times to select mode can be used to zero out the parasitic capacitance of the leads and the internal protection circuitry of the meter when measuring low capacitance in the order of Pico Farad (pF). CAUTION Discharge capacitors before making any measurement.
8 Display Backlight (ACDC-100 TRMS only) Press the SELECT button for 1 second or more to toggle the display backlight on and off. Auto Power Off (APO) When the meter is on, the Auto Power Off (APO) feature will switch the meter to sleep mode automatically after approximately 30 minutes of no slide-switch nor push button operations to extend battery life. To wake up the meter from APO, press any push-buttons momentarily or set the slide-switch to the OFF position and then slide back on again.
9 Battery replacement The meter uses standard 1.5V AAA Size (NEDA 24G or IEC R03) battery X 2; or 1.5V AAA Size (NEDA 24A or IEC LR03) alkaline battery X 2. Loosen the 2 captive screws from the battery cover case. Lift the battery cover case. Replace the batteries. Replace battery cover case. Re-fasten the screws.
10 6) SPECIFICATIONS General Specifications Display : 3-3/4 digits 4000 counts LCD display(s) Update Rate : 3 per second nominal Polarity : Automatic Low Battery : Below approx. 2.4V Operating Temperature : 0oC to 40oC Relative Humidity : Maximum relative humidity 80% for temperature up to 31oC decreasing linearly to 50% relative humidity at 40oC Altitude : Operating below 2000m Storage Temperature : -20oC to 60oC, < 80% R.H. (with battery removed) Temperature Coefficient : nominal 0.
11 Electrical Specifications Accuracy is ±(% reading digits + number of digits) or otherwise specified, at 23oC ± 5oC & less than 75% R.H. ACDC-100 TRMS ACV & ACA clamp-on accuracies are specified from 5% to 100% of range or otherwise specified. Maximum Crest Factor are as specified below, and with frequency spectrums, besides fundamentals, fall within the meter specified AC bandwidth for non-sinusoidal waveforms. DC Voltage Accuracy RANGE 400.0 mV 0.3% + 3d 4.000V, 40.00V, 400.0V 0.5% + 3d 600V 1.
Ohms RANGE 400.0Ω 4.000kΩ, 40.00kΩ, 400.0kΩ 4.000MΩ 40.00MΩ Open Circuit Voltage : 0.4VDC typical 12 Accuracy 0.8% + 6d 0.6% + 4d 1.0% + 4d 2.0% + 4d Audible Continuity Tester Open Circuit Voltage: 0.4VDC typical Range: 400.0Ω; Accuracy: 1.5% + 6d Audible threshold: between 10Ω and 120Ω. Diode Tester Open Circuit Voltage < 1.6 VDC Test Current (Typical) 0.4mA Capacitance Accuracy 2) 3) RANGE 1) 3.5% + 6d 500.0nF, 5.000µF, 50.00µF, 500.0µF, 3000µF 1)Additional 50.
ACA Current (Clamp-on) RANGE Accuracy1) 2) 400.0A 15Hz ~ 40Hz 2.0% + 5d 3) 40Hz ~ 200Hz 1.5% + 5d 200Hz ~ 400Hz @ <50A 4) 1.5% + 5d 400Hz ~ 1kHz @ <50A 4) 2.0% + 5d 800A 15Hz ~ 40Hz @ 400A ~ 600A 2.0% + 5d 3) 40Hz ~ 100Hz @ 400A ~ 600A 1.5% + 4d 15Hz ~ 60Hz @ 600A ~ 800A 5.0% + 30d 1)Induced error from adjacent current-carrying conductor: < 0.01A/A 2)ACDC-100 TRMS crest Factor: < 1.6 : 1 at full scale & < 3.2 : 1 at half scale 3)4.
