72-9375 110V P/N:110401102691
72-9375: OPERATING MANUAL Table of Contents Title Page Overview…………………………………………………2 Package Contents………………………………………2 Safety Information………………………………………2 Rules for Safe Operation………………………………3 International Electrical Symbols……………………….4 The Meter Structure…………………………………….5 Rotary Switch……………………………………………5 Functional Buttons………………………………..........6 Display Symbols…………………………………..........6 Measurement Operation……………………………....8 A. AC & DC Voltage Measurement……………….8 B.
72-9375: OPERATING MANUAL Overview This Operating Manual covers information on safety and cautions. Please read the relevant information carefully and observe all the Warnings and Notes strictly. Warning To avoid electric shock or personal injury, read the “Safety Information” and “Rules for Safe Operation” carefully before using the Meter.
72-9375: OPERATING MANUAL 1000V, CAT. III 600V) and double insulation. Use the Meter only as specified in this operating manual, otherwise the protection provided by the Meter may be impaired. In this manual, a Warning identifies conditions and actions that pose hazards to the user, or may damage the Meter or the equipment under test. A Note identifies the information that user should pay attention on.
72-9375: OPERATING MANUAL z z z z z z z range shall be made during measurement is conducted to prevent damage of the Meter. Disconnect circuit power and discharge all high-voltage capacitors before testing current, resistance, diodes, continuity or capacitance. Start charging as soon as the power indicator appears. With a low battery, the Meter might produce false readings that can lead to electric shock and personal injury.
72-9375: OPERATING MANUAL Warning. Refer to the Operating Manual Conforms to Standards of European Union The Meter Structure (see figure 1) ķ LCD Display ĸ Solar Panel Ĺ SELECT Button ĺ Rotary Switch Ļ HOLD Button ļ Input Terminals Ľ Relative Mode & RESET Button Rotary Switch Below table indicated for information about the rotary switch positions. Rotary Function Switch Position OFF Power is turned off V ȍ Hz μA , mA , A CHARGE AC/DC voltage measurement ȍ: Resistance measurement : Diode Test.
2-9375: OPERATING MANUAL Charge at 110VAC. 12-36 : Charge at 12-36 . Functional Buttons Below table indicated for information about the functional button operations.
72-9375: OPERATING MANUAL No. Symbol Meaning 1 AC Indicator for AC voltage or current. The displayed value is the mean value. 2 Indicates negative reading. 3 Charge indicator CHARGE 4 AUTO The Meter is in the auto range mode in which the Meter automatically selects the range with the best resolution. 5 Data hold is active 6 The mode displays the present value minus the stored value The power is low.
72-9375: OPERATING MANUAL µF, nF Hz, kHz, MHz V, mV A, mA, µA F: Farad (unit of capacitance) -6 µF: Microfarad. 1 x 10 or 0.000001 farads. -9 nF: Nanofarad. 1 x 10 or 0.000000001 farads. Hz: Hertz (The unit of frequency in cycles/second. kHz: Kilohertz. 1 x 103 or 1,000 hertz. MHz: Megahertz. 1 x 106 or1,000,000 hertz. Volts (unit of voltage) V: mV: Millivolt (1 x 10-3 or 0.001 volts) A: Amperes (amps). The unit of current. mA: Milliamp. 1 x 10-3 or 0.001 amperes. -6 µA: Microamp. 1 x 10 or 0.
72-9375: OPERATING MANUAL AC voltage measurement The AC voltage ranges are: 4.000V, 40.00V, 400.0V and 750.0V. To measure AC Voltage, connect the Meter as follows: 1. Insert the red test lead into the HzVȍ terminal and the black test lead into the COM terminal. 2. Set the rotary switch to V and press SELECT button to select AC measurement mode. 3. Connect the test leads with the object being measured. The measured value shows on the displayˈwhich is effective value of sine wave (mean value response).
72-9375: OPERATING MANUAL Note At 400mV range, the Meter has an input impedance of 4000M . Except at 400mV range, all other ranges the Meter has an input impedance of 10M . This loading effect can cause measurement errors in high impedance circuits. If the circuit impedance is less than or equal to 10k , the error is negligible (0.1% or less). When DC voltage measurement has been completed, disconnect the connection between the testing leads and the circuit under test. B.
72-9375: OPERATING MANUAL 1. 2. 3. Insert the red test lead into the HzVȍterminal and the black test lead into the COM terminal. , resistance Set the rotary switch toȍ measurement (ȍ) is default (or press SELECT button to selectȍmeasurement mode) Connect the test leads with the object being measured. The measured value shows on the display. Note z The test leads can add 0.1ȍto 0.2ȍ of error to resistance measurement. To obtain precision readings in low-resistance measurement, that is the range of 400.
72-9375: OPERATING MANUAL other semiconductor devices. The diode test sends a current through the semiconductor junction, and then measures the voltage drop across the junction. A good silicon junction drops between 0.5V and 0.8V. To test a diode out of a circuit, connect the Meter as follows: 1. Insert the red test lead into the HzVȍterminal and the black test lead into the COM terminal. and press 2. Set the rotary switch toȍ measurement SELECT button to select mode. 3.
72-9375: OPERATING MANUAL To test for continuity, connect the Meter as below: 1. Insert the red test lead into the HzV terminal and the black test lead into the COM terminal. 2. Set the rotary switch to and press measurement SELECT button to select mode. 3. The buzzer does not sound if the circuit is disconnected and resistance value is > 100 . The buzzer sounds continuously if the circuit is in good condition, with resistance value 10 . 4.
72-9375: OPERATING MANUAL 3. accuracy of capacitance measurement, press button before measuring (the LCD will display 0). Connect the test leads with the object being measured. The measured value shows on the display. Note C. The LCD displays OL indicating the capacitor is short-circuited or the capacitor value being tested is overload. For testing the capacitor polarity, connect the red test lead to anode & black test lead to cathode instead of using test leads as mentioned above.
72-9375: OPERATING MANUAL Note When Hz measurement has been completed, disconnect the connection between the testing leads and the circuit under test. D. AC & DC Current Measurement (see figure 9) Warning Never attempt an in-circuit current measurement where the open-circuit voltage between the circuit and ground is greater than 110V. If the fuse burns out during measurement, the Meter may be damaged or the operator himself may be hurt. Use proper terminals, function, and range for the measurement.
72-9375: OPERATING MANUAL 3. 4. Set the rotary switch toȝA , mA or A . The Meter defaults to DC current measurement mode. To toggle between DC and AC current measurement function, press SELECT button. AC current is displayed as an mean value (calibrated against sine wave effective value). 5. Break the current path to be tested. Connect the red test lead to the more positive side of the break and the black test lead to the more negative side of the break. 6. Turn on power to the circuit.
72-9375: OPERATING MANUAL To set up charging as follows: Charge at 110V AC 1. Insert the red test lead into the HzV terminal and the black test lead into the COM terminal. 2. Set the rotary switch to 110V MAX. 3. Insert the test leads’ probe tip into the 110V AC power supply respectively. 4. CHARGE shows on the display. 5. The charging time is around 15 mins. 6. Take the DC Voltage range as an example, the continuous working time is 90 mins Charge at 12-36V 1.
72-9375: OPERATING MANUAL power. The Hold mode will not capture unstable or noisy readings. The Hold mode is applicable to all measurement functions. to enter Hold mode (meter will beep) Press Press again to exit Hold mode (meter will beep) is displayed.
72-9375: OPERATING MANUAL The RESET button The RESET mode applies only to the charge function. The LCD will be closed when the power is low. When the LCD is first opened or charging after 5 minutes during power charging, press RESET to display the correct current charging voltage. The SELECT button It uses for selecting the required measurement function when there is more than one function at one position of the rotary switch.
72-9375: OPERATING MANUAL Electro-Magnetic Field Interference: When field value is under 1V/m: total accuracy = assigned accuracy + 5% of the range. When field value is over 1V/m: there is no assigned accuracy Battery Deficiency: Display Negative reading:Display Overloading: Display: OL. Equipped with full icons display Manual / Auto ranging Polarity: Automatically display Dimensions (HxWxL): 179 x 88 x 39mm Weight: 380g (including holster and battery) Safety/Compliances: IEC61010: CAT. II 1000V, CAT.
72-9375: OPERATING MANUAL B. DC Voltage Range Resolution Accuracy 400m 0.1mV ±(0.8%+3) V 4V 1 mV ±(0.8%+1) 40V 10 mV 400V 100mV 1000V 1V ±(1%+3) Remark: Input impedance: At 400mV range: above 4000M All other ranges: approx. 10M C. Resistance Range Resolution Accuracy Overload Protection 1000V DC or 750V AC continuous Overload Protection 400 0.1 ±(1.2%+2) 4k 1 ±(1%+2) 40k 10 600Vp 400k 100 4M 1k ±(1.2%+2) 40M 10k ±(1.5%+2) Remarks: Open circuit voltage: approx. 0.45V D.
72-9375: OPERATING MANUAL resistance value is 10 working condition). E. Capacitance Test Range 40nF Resolution Accuracy 10pF 400nF 100pF 4μF 1nF 40μF 10nF 100μF 100nF F. Frequency Test Range 10Hz~ 10MHz ±(3%+5) ±(0.1%+3) 0.1 A 1 A 10 A 400mA 0.1mA 4A 1mA 10A 10mA Overload Protection 600Vp 30V rms Resolution Accuracy 400 A 4000 A 40mA 600Vp ±(4%+5) Resolution Accuracy 0.
72-9375: OPERATING MANUAL 15 minutes rest intervals between tests) H. DC Current Overload Range Resolution Accuracy Protection 400 A 0.1 A Fuse 500mA, ±(1%+2) 4000 250V, fast 1 A A type, 40mA 10 A 5×20mm ±(1.2%+3) 400mA 0.1mA 4A 1mA Fuse 10A, ±(1.5%+5) 250V, fast type, 10A 10mA 5×20mm Remarks: At 10A range: For continuous measurement 10 seconds (with 15 minutes rest intervals between tests) MAINTENANCE This section provides basic maintenance information including battery and fuse replacement instruction.
72-9375: OPERATING MANUAL B. high temperature, explosives, and strong magnetic field. Replacing the Fuses (see figure 11) Warning To avoid electrical shock or arc blast, which would cause personal injury or damage to the Meter, use specified fuses ONLY in accordance with the following procedure. To replace the Meter’s fuse: 1. 2. 3. Turn the Meter off. Remove the outer holster from the Meter. Remove all connections from the Meter’s terminals. 4.
