DIGITAL MULTIMETER CONTENTS CONTENTS ITEM 98674 DIGITAL MULTIMETER OPERATION MANUAL 1. SAFETY INFORMATION …1 1.1 PRELIMINARY …1 1.2 DOS AND DON’TS …2 1.3 SYMBOLS …3 1.4 MAINTENANCE …4 2. DESCRIPTION …6 2.1 NAMES OF PARTS …7 2.2 SWITCH, BUTTONS AND INPUT JACKS …8 2.3 LIQUID-CRYSTAL DISPLAY (LCD) …10 3. SPECIFICATIONS …12 3.1 GENERAL SPECIFICATIONS …12 3.2 TECHNICAL SPECIFICATIONS …13 4. OPERATION INSTRUCTION …23 4.1 MISCONNECTION ALARM …23 4.
DIGITAL MULTIMETER DIGITAL MULTIMETER CONTENTS SAFETY INFORMATION NTS 4.10 MEASURING DC VOLTAGE …29 4.11 MEASURING AC VOLTAGE …30 4.12 MEASURING FREQUENCY …31 BE 4.13 MEASURING DUTY …32 METER. Improper use of this device can result in 4.14 MEASURING DC CURRENT …32 electric shock or destruction of the meter. Take all 4.15 MEASURING AC CURRENT …33 4.16 MEASURING RESISTANCE …35 4.17 MEASURING CAPACITANCE …36 safe operation, please read carefully and follow the 4.
DIGITAL MULTIMETER DIGITAL MULTIMETER SAFETY INFORMATION NT 1.1.2 When the meter is delivered, check whether it has SAFETY INFORMATION NTS 1.2.7 Do not connect the meter to any voltage source while the rotary selector is in the current, resistance, been damaged in transit. 1.1.3 After being stored and delivered under harsh conditions, the meter should be checked and confirmed whether any damages have been incurred. capacitance, diode, continuity range. 1.2.
DIGITAL MULTIMETER DIGITAL MULTIMETER SAFETY INFORMATION NTS （ ） - double insulation Protection class ΙΙ . SAFETY INFORMATION NTS 1.4.5 Use damp cloth and mild detergent to clean the meter; CAT II - overvoltage (installation) category II, pollution degree 2 per IEC1010-1, referring to the level of impulse withstand voltage protection provided. do not use abrasives or solvents. 1.4.6 Turn the rotary selector to OFF position to switch off the power when the meter is not in use.
DIGITAL MULTIMETER DIGITAL MULTIMETER DESCRIPTION NTS 2. DESCRIPTION SAFETY INFORMATION NTS measuring ambient humidity and temperature, as well - This meter is a portable professional measuring instrument with large LCD to show three lines of as temperature of objects. - The digital multimeter can perform measurements of ， readings, as well as back light for easily reading.
DIGITAL MULTIMETER DIGITAL MULTIMETER SAFETY INFORMATION NTS SAFETY INFORMATION NTS SELECT Button - for switching among measuring functions RANGE Button - for switching between auto and manual ranges. Hz/DUTY Button - for switching between Hz and duty measurement. REL Button - for switching to relative measurement. ℃/℉ Button (℃/℉) - for switching between ℃ and ℉ Rotary Selector 10A 1000V CAT III uA/mA COM - for selecting functions and ranges. OFF Position - for turning off the power.
DIGITAL MULTIMETER DIGITAL MULTIMETER SAFETY INFORMATION NTS Humidity Sensor SAFETY INFORMATION NTS ~ AC - for measuring humidity. Alternating Current DC Light Sensor AC or DC (alternating current or direct current) - for measuring luminance. Diode Microphone Continuity buzzer - for measuring sound level (dB). 2.
DIGITAL MULTIMETER DIGITAL MULTIMETER SPECIFICATION NTS SPECIFICATION NTS ℃ to 40℃（32°F to 104°F） ℃ to 50℃（10°F to 122°F） 3. SPECIFICATIONS 3.1.18 Operating temperature: 0 Calibration is required once a year, to be carried out at a 3.1.19 Storage temperature: -10 temperature between 18°C and 28 °C (64 °F to 82°F) and 3.1.20 Dimension: 195×92×55mm relative humidity below 75%. 3.1.21 Weight: approximate 400g including batteries 3.1 GENERAL SPECIFICATIONS 3.2 TECHNICAL SPECIFICATIONS 3.1.
DIGITAL MULTIMETER DIGITAL MULTIMETER SPECIFICATION NTS 3.2.2 AC Voltage SPECIFICATION NTS 3.2.3 DC Current Range Resolution 400mV 0.1mV Accuracy ± (0.8% of reading + 3 digits) Range Resolution 400µA 0.1µA 4V 1mV 4000µA 1µA 40V 10mV 40mA 10µA 400V 100mV 400mA 100µA 750V 1V ± (1.0% of reading + 3 digits) - Input Impedance: 10MΩ - Overload protection: 4A 1mA 10A 10mA Accuracy ± ± （1.2% of reading + 3 digits） （2.
DIGITAL MULTIMETER DIGITAL MULTIMETER SPECIFICATION NTS 3.2.4 AC Current SPECIFICATION NTS 3.2.5 Resistance Range Resolution 400µA 0.1µA 4000µ A 1µA 40mA 10µ A 400mA 100µA 4A 1mA 10A 10mA Accuracy ± ± （1.5% of reading + 5 digits） （3.0% of reading + 10 digits） - Overload protection: 、 µA mA ranges: resettable fuses F1 500mA/250V 10A range: F2 10A/250V fuse (quick acting),. - Max.
DIGITAL MULTIMETER DIGITAL MULTIMETER SPECIFICATION NTS 3.2.7 Frequency Range SPECIFICATION NTS - Max. input current: Resolution 9.999Hz 0.001Hz 99.99Hz 0.01Hz 999.9Hz 0.1Hz 9.999kHz 1Hz 99.99kHz 10Hz 199.9kHz 100Hz Accuracy ± 2.0% of reading + 5 digits （ ） （ ） ± 1.5% of reading + 5 digits （ （ ） ） mA jack µA ranges : 4mA, mA jack mA ranges : 400mA, 10A jack: 10A - Overload Protection: 、 µA mA ranges: resettable fuses F1 500mA/250V 10A range: F2 10A/250V fuse (quick acting).
DIGITAL MULTIMETER DIGITAL MULTIMETER SPECIFICATION NTS Input Impedance: 10MΩ SPECIFICATION NTS 3.2.10 Temperature Max. Input Voltage: 1000V DC or 750V rms AC temperature display Frequency response: 0 ~ 40kHz Range Input current range: ≥1/4 of the rms AC for the range (higher input voltage at higher frequency) - Max. input current: （ ） mA jack（mA ranges）: 400mA, Resolution ℃ ℉ ℃ 0.1℉ 0.
DIGITAL MULTIMETER DIGITAL MULTIMETER SPECIFICATION NTS （ ） 3.2.12 Luminance Lux 4. OPERATING INSTRUCTION Range Resolution Accuracy Lux (4000) 1 Lux ±（5.0% of reading + 10 digits） ×10Lux 10Lux at color temp. 2856K calibrated to standard incandescent lamp (40000) 4.1 MISCONNECTION ALARM The input jacks of the meter are equipped with sound and light alarms against misconnection of test leads. 、、 、 、 、 4.1.1 At V Ω Hz Duty ） - Repeatability: ±2%.
DIGITAL MULTIMETER DIGITAL MULTIMETER OPERATING INSTRUCTION At the same time, the lights at the “10A” and “COM” jacks will flash to remind the user to plug in the test OPERATING INSTRUCTION to the lowest level when the highest level is reached. ） 3 Press the "RANGE" button for two or more seconds to leads there. return to the auto range. 4.1.
DIGITAL MULTIMETER DIGITAL MULTIMETER OPERATING INSTRUCTION OPERATING INSTRUCTION ） 3 The meter will enter the manual range mode after the “REL” button is pressed. REL mode is not available for Hz/Duty range because it is an automatic range. 4) Press the “REL” button again to cancel the relative measurement function. 5 ）Pressing the “REL” button at the HOLD mode will cancel the HOLD function. again to switch off the back light. 3 ） The back light will go off automatically after 10 seconds.
DIGITAL MULTIMETER DIGITAL MULTIMETER OPERATING INSTRUCTION ）Turn 2 the rotary selector or press any of the OPERATING INSTRUCTION 4.10 MEASURING DC VOLTAGE “HOLD/B.L”, “SELECT”, “RANGE”, “Hz/DUTY” or “REL” button to resume operation of the meter under auto the power off mode. ）Press the “SELECT” button to disable the auto power 3 off function. WARNING Beware of electrocution. Pay special attention to avoid electric shock when measuring high voltage.
DIGITAL MULTIMETER DIGITAL MULTIMETER OPERATING INSTRUCTION 2) Under the manual range mode, when only ‘OL’ or ‘-OL’ is shown on the LCD, it means the measurement has exceeded the range. A higher range should be selected. OPERATING INSTRUCTION NOTE: 1) At small voltage range, unsteady readings may appear before the test leads contact the circuit. This is normal because the meter is highly sensitive.
DIGITAL MULTIMETER DIGITAL MULTIMETER OPERATING INSTRUCTION OPERATING INSTRUCTION 4.13 MEASURING DUTY 4.14.4 Connect the test leads to the circuit for measurement. 4.13.1 Plug the black test lead into the COM jack and the 4.14.5 Take the reading on the main indicator of the LCD. The polarity symbol denotes the polarity of the end red test lead into the Hz jack. 4.13.2 Set the rotary selector to the Hz range position. 4.13.
DIGITAL MULTIMETER DIGITAL MULTIMETER OPERATING INSTRUCTION test lead into the 10A jack. 4.15.2 Set the rotary selector to the OPERATING INSTRUCTION 4.16 MEASURING RESISTANCE A range position. 4.15.3 Press the "SELECT" button to switch to AC measurement. Then press the “RANGE” button to choose the auto range or manual range mode. WARNING Beware of Electrocution. When measuring in-circuit resistance, make sure that the power of the circuit under test has been 4.15.
DIGITAL MULTIMETER DIGITAL MULTIMETER OPERATING INSTRUCTION 4.17 MEASURING CAPACITANCE OPERATING INSTRUCTION 4.18.3 Press the "SELECT" button to switch to test. 4.18.4 Connect the red test lead to the anode and the black WARNING test lead to the cathode of the diode for testing. Beware of Electrocution. To avoid electric shock, make sure that the 4.18.5 Take the reading on the main indicator of the LCD.
DIGITAL MULTIMETER DIGITAL MULTIMETER OPERATING INSTRUCTION 4.19.6 Read the resistance on the main indicator of the LCD. OPERATING INSTRUCTION 4.21 MEASURING TEMPERATURE (WITH THERMO-RESISTOR) NOTE: If the test leads are open or the resistance of the circuit is 4.21.1 This function is used for measuring the ambient temperature around the meter. over 400Ω, “OL” will appear on the LCD. 4.21.2 Turn the rotary selector away from the OFF position. 4.20 MEASURING RELATIVE HUMIDITY 4.21.
DIGITAL MULTIMETER DIGITAL MULTIMETER OPERATING INSTRUCTION 4.22 MEASURING TEMPERATURE OPERATING INSTRUCTION 4.23 MEASURING SOUND LEVEL (dB) (WITH THERMOCOUPLE) WARNING WARNING To avoid damage to the meter, do not connect the input plug to any electric signal. Beware of electrocution. To avoid electrical shock, do not connect the 4.23.1 Turn the rotary selector to the dB range position. thermocouples to charged circuits. 4.23.
DIGITAL MULTIMETER DIGITAL MULTIMETER OPERATING INSTRUCTION NOTE: 1 ） When only ‘OL’ appears on the LCD, it means over-range and a higher range should be selected.
DIGITAL MULTIMETER DIGITAL MULTIMETER OPERATING INSTRUCTION Appendix: MAINTENANCE 5. MAINTENANCE Conversion between luminance and light intensity: E=I/r2 ； where E --- luminance, unit: Lux 5.1 REPLACING THE BATTERIES ； WARNING I --- intensity of light source, unit: cd To avoid electric shock, make sure that the test r --- distance between illuminant surface of light source leads have been clearly move away from the circuit and light detector, unit: m.
DIGITAL MULTIMETER DIGITAL MULTIMETER MAINTENANCE 5.2.4 Put the battery cover back and fix it again to its MAINTENANCE 5.3 REPLACING TEST LEADS original form. WARNING WARNING The replacement must be test leads in good To avoid electric shock, make sure that the test leads working condition with the same or equivalent have been clearly move away from the circuit under rating: 1000V 10A.
DIGITAL MULTIMETER ACCESSORIES 6.
HYS005958
