Victor 81D Operation Manual

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Operation manual (34 pages)

Operation manual (33 pages)

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Digital Multimeter Operation

I. General

This is a steady performance, high

security 3 1/2 digital multimeter. It uses LCD

with 18.9mm high figure to make the reading

clear.

The digital multimeter has the function of

measuring ACV, DCV, ACA, DCA, Resistance,

Celsius & Fahrenheit Temperature, Diode,

Continuity. The instrument also has the features

of Unit Symbol Display, Auto/Manual Range

Selection, Auto Power Offer and Alarm

Function. It adopts the directly driven 8 digits

Manual

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Summary of Contents for Victor 81D

Page 1 Digital Multimeter Operation Manual I. General This is a steady performance, high security 3 1/2 digital multimeter. It uses LCD with 18.9mm high figure to make the reading clear. The digital multimeter has the function of measuring ACV, DCV, ACA, DCA, Resistance, Celsius &...
Page 2 microprocessor and dual-integral A/D converter, which provide the high resolution, high accuracy displaying driver. Because of its outstanding functions, the instrument is an excellent tool and most suitable for lab, factory, maintenance and repair users. II. Open-Package Inspection Open the gift box and take out the instrument, carefully check the following accessories.
Page 3 III. Safety Note The instrument is designed according to IEC1010 standard (safety standard issued by International Electro technical Committee). Please read the following before operation. Caution to avoid the electric shock when measuring voltage higher than 36V DC, 25AC, current higher than 10mA, AC power line with inductance load and AC power line during the power fluctuation.
Page 4 standard only to use the instrument with the equipped test leads. If the test leads are broken, should replace them by the same type same electric specification test leads. Do not replace the inside fuse by the unconfirmed one. Only replace it by the same type and specification fuse.
Page 5 input terminal. When measuring electricity, do not connect the body with the ground directly, and do not touch the possible exposed metallic terminal, output socket or lead clamp with ground potential. Usually use the dry cloth, rubber overshoes, rubber cushion and other insulated materials to keep the body isolated with the ground.
Page 6 limit. The allowed maximum voltage is printed on the front panel of the instrument, do not measure the value over the standard safety voltage, do not input the range limit specified to void the electric shock and instrument damage. Do not measure any voltage when connecting the test leads with the current terminal to avoid damaging the instrument and endangering the safety...
Page 7 should be set in the correct range when measuring. When switching function/range selection knob, keep the test leads off the tested object to make sure there is no any signal at the input terminal. switch function/range selection knob when measuring. 12.
Page 8 Warning! High Voltage! Dangerous! DCA & Meets the direction Dual Insulation European Fuse Battery 15． Safety Symbol Description：...
Page 9 IV. Front Panel & Button Function Description 1. Instrument Model Number 2.LCD Display： Display the measured data and unit. 3.Function Button 3.1.MAX（Max Value Hold）: Press the button, the reading is renewed and the max value is held on LCD. 3.2.SELECT（Function Switch）：Press the button, DC/AC mode, ,℃/℉...
Page 10 Auto Range is the original states, press the button to switch to the Manual Range. At the Manual Range mode, press the button once, the range is switched to the higher one, press the button again to switch the range to the lowest one when measuring the highest range, the cycle is in proper order from low to high.
Page 11 V. Other Functions Stop working seconds during measurement, the instrument will be auto power off (sleeping mode) to save the power; in the auto power offer mode, press any function button or change the knob switch, the instrument will get into the auto power on mode (working mode);...
Page 12 1-4．Sampling Rage：Approx. 3 times / sec. 1-5．Over range Indication：Display “OL” ”symbol 1-6．Low Battery Indication：“ appearance； 1-7．Operation Environment：（0～40）℃， Relative Humidity: ＜80% ； 1-8．Storage Environment：（0～50）℃， Relative Humidity: ＜80% ； 1-9．Power：2pcs 1.5V batteries（“AAA”7# battery）； 1-10．Dimension（size）：145×74×36mm 1-11．Weight：Approx. 185g（Including 2pcs 1.5Vbatteries） 1-12．Accessories：1pc operation manual，...
Page 13 leads、1pc K Type Temperature Probe TP01 and 2pcs 1.5 batteries。 2．Technical Property 2-1.Accuracy:±(%×reading ＋ digits) ， at (23±5)℃，relative humidity ＜75%， One year calibration guarantee since the time dispatched from the factory. 2-3-1.DCV Insert the red and black test leads separately to and COM input terminals.
Page 14 much accurate and stable than the reading measured in the Range “ ”. 4. Turn the knob switch to “ ”Range. 5. Auto range mode is the original states, it displays “AUTO” symbol, Press “RANGE” button to switch to Manual range mode, can select 200mV、...
Page 15 exceeded the present range limit, please select the higher range to complete the measurement. 2. Do not measure the voltage higher than 600V. Otherwise, there is the danger to damage the instrument. 3. When measuring the high voltage, caution to avoid the body touches the high voltage.
Page 16 2-3-2. ACV 1. Insert the red and black test leads separately and COM input terminals. 2. Turn the knob switch to Range, press “SELECT” button to switch to ACV measurement mode. 3. This range is 200mV, The reading to measure the voltage less than 200mV is much accurate and stable than the reading measured in the Range “...
Page 17 6．Connect the test leads to the tested point, voltage polarity point connected by red lead will be displayed on LCD. Note：1. At the Manual Range mode, if “OL” is displayed on LCD, it indicates the tested voltage value has exceeded the present range limit, please select the higher range to complete the measurement.
Page 18 Accuracy Range Resolution ±(1.5%+20d) 200mV 100uV ±(0.8%+6d) 10mV 200V 100mV ±(1.0%+6d) 600V Input Impedance：>10MΩ at Range 200mV, 40MΩ at other ranges Overload Protection：600V DC or 600V AC Peak Value； Frequency Response：（50～200）Hz Display：Average value response (RMS of sine wave).
Page 19 2-3-3. DCA 1.Insert the black test lead to the COM input terminal, and red test lead to input terminal (max 200 mV) or 10A input terminal (max 10A). 2.Turn the knob switch to Current Range, press “SELECT” button to switch to DCA measurement mode.
Page 20 of tested current, and then select the proper range based on displaying value. 2. If “OL” is displayed on LCD, it indicates the tested current value has exceeded the present range limit, please select the higher range to complete the measurement. 3.
Page 21 Max measurement voltage drop：Full Range mA is 1.2V， A is 100mV； Max input current： 10A（less than 15 seconds）； Overload Protection：0.2A/250V restorable fuse，10A/250V fuse. 2-3-4. ACA 1.Insert the black test lead to the COM input terminal, and red test lead to input terminal (max 200 mV) or 10A input terminal (max 10A).
Page 22 simultaneously. 3. Press “RANGE” button to select auto or manual range mode. Note： 1. Firstly users should select the auto range mode, if users had no idea about the range of tested current, and then select the proper range based on displaying value. 2.
Page 23 limit, the fuse will be melt, even damage the instrument. Accuracy Range Resolution 200uA 0.1uA 2000uA ±(1.5%+10d) 20mA 10uA 200mA 100uA ±(2.5%+15d) 10mA Max measurement voltage drop：Full Range mA is 1.2V， A is 100mV； Max input current： 10A（less than 15 seconds）； Overload Protection：0.2A/250V restorable fuse，10A/250V fuse.
Page 24 and COM input terminals. 2. Turn the knob switch to “Ω” Range, connect the test leads cross with the tested resistor. 3. Press “RANGE” button to select auto or manual range mode. 4. When measuring the min. resistance , please short-circuit the test leads at first to test the wire resistance, and then deduct it from the actual resistance.
Page 25 higher range complete measurement. When measuring Resistor higher than 1MΩ, the instrument will take several seconds to make the reading stable, it is normal when measuring the high resistor. 3.When the input terminal is open circuit, it will display “OL”. 4.
Page 26 Open Voltage circuit：Less than 200mV； Overload Protection：250V DC or AC Peak Value； Note ： When measuring at Range 200Ω, please short-circuit the test leads at first to test the wire resistance, and then deduct it from the actual resistance. 2-3-6.Diode and Continuity Test 1.
Page 27 with the diode under tested, the red test lead connect to diode positive polarity, the black test lead to diode cathode polarity, the reading is the approx. value of diode forward volt drop. 4. Backward Measurement: the red test connect to diode positive polarity, the black test lead...
Page 28 Buzzer makes a Open circuit long sound voltage while resistance Approx. 0.5V is less than 50Ω Overload Protection: 250V DC or AC Peak Value. CAUTION: DO NOT INPUT VOLTAGE AT THIS RANGE! 2-3-7.Celsius/Fahrenheit(℃/℉)(Only VICTOR 81B) 1. Switch the knob to“℃/ ℉”range, press...
Page 29 “SELECT” button to switch to “℃” and “℉” measurement mode. 2. Insert the cathode(black pin) of cold end (free end) of thermocouple into “COM” jack, anode (red pin) into “ ” terminal, working (temperature measurement end) of thermocouple on the surface or inside the object to be tested.
Page 30 (-20 ～＜400℃±(1.0%+5d) 1℃ ≥400℃±(1.5%+15d) 1000)℃ （ 0 ～ 1832 ） ±(1.5%+15d) 1℉ ℉ Sensor：K Type Thermocouple (banana plug) CAUTION：DO NOT INPUT VOLTAGE AT THIS RANGE! VIII. Instrument Maintenance Instrument is a high accuracy instrument, please don’t modify the circuit. 1．...
Page 31 strong magnetic place. 3．Wipe the case with a damp cloth and detergent, do not use abrasives and alcohol. 4. If do not operate for a long time, should take out the battery to avoid leakage. 5.When ” ” symbol displays, should replace the battery following the steps: 5-1．...
Page 32 than DC 1000V or AC Peak Value. 2. Don’t measuring the voltage at current, resistance, diode and continuity range. 3.Don’t use the instrument when the battery isn’t installed or the back case isn’t firm. 4. When replacing battery or fuse, please take away the test leads from the measured point and power off at first.
Page 33 If the instrument does not work properly, check the instrument as following: The specifications are subject to change without notice. The content of this manual is regarded as correct, error or omits Pls. contact with factory. We hereby will not be responsible for the accident and damage caused by improper operation .

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