Victor VC9805A+ Manual - Smart
Contents
1. 2 Set the knob to frequency range connect test leads or cable crossly to signal source or tested load NOTE 1 When input over 10V RMS reading is workable but accuracy is not guaranteed 2 It is better to use shield cable to measure small signal at noisy environment 3 Be careful when measuring high volt circuit 4 Do not input voltage over DC 250V or AC peak value 5 Auto range test from 2kHz to 10MHz 4 9 TRANSISTOR hFE 1 Set the knob to hFE range 2 insert the Test accessories to mA and COM terminal 3 Verify the transistor under tested is NPN or PNP insert emitter base and collector to proper jack 4 10 DIODE AND CONTINUITY TEST 1 Apply the black test lead to COM terminal and the red one to V Q Hz terminal the polarity of red lead is 2 Set the knob to gt range connect test leads to the diode under tested the red test connect to diode positive polarity the reading is the approx value of diode forward volt drop 3 Apply test leads to two points of tested circuit if the inner buzzer sounds the resistance is less than 70 20 Q 4 11 DATA HOLD Press down the key the present value is held on LCD Press up the key and the function is cancelled 4 12 AUTO POWER OFF After stop working for 20 10 minutes the meter will be into sleep mode Press POWER key twice to restart the power 4 13 Backlight Press the B L key to turn on the backlight will be auto2. 1000 C 1 0 5 lt 400 C 0 1832 F 0 75 5 lt 750 F K type thermocouple banana shape plug 2 3 9 Frequency Input sensitivity 1V RMS Overload protection DC 250V or AC peak value within 10 seconds 2 3 10 Diode and continuity testing 4 Forward DCA is approx 1mA the backward voltage is approx 3V Open voltage is approx Forward voltage drop of diode Buzzer makes a long sound while resistance is less than 700Q 20Q0 Overload protection DC 250V or AC peak value CAUTION DO NOT INPUT VOLTAGE AT THIS RANGE 2 3 11 Transistor hFE DATA TEST Displaying range Test condition hFE NPN or PNP 0 1000 Basic current is approx 10uA Vce is about 3V 4 OPERATION 4 1 Panel description 1 LCD display the measuring value and unit 2 Function key 2 1 POWER switch turn on off the power 2 2 Backlight key 2 3 Transistor test jack 2 4 HOLD key press it the present value is held on LCD and H symbol displays Press it again H symbol disappears and the meter is exited the holding mode 2 5 DC AC key set DC or AC working mode 3 Range knob to select measuring function 200kHz 3 0 18 100Hz and range 4 Voltage resistance and frequency COM 5 GND 6 COM for measuring current less than 200mA 7 COM for measuring current 20A SEE THE FIG 4 2 Voltage measurement 1 Apply the black test lead to COM terminal and the
3. 2 8 100uUA 20A 2 0 5 Max measuring voltage drop 200mV Max input current 20A within 10 seconds Overload protection 0 2A 250V restorable fuse range 20A infused 2 3 4 ACA OA 2 0 5 3 0 10 Max measuring voltage drop 200mV Accuracy 1 0 15 Max input current 20A within 10 second Overload protection 0 2A 250V restorable fused Range 20A infused Frequency response 40 200Hz Displaying RMS of sine wave mean value response 2 3 5 Resistance Q Range 2000 0 8 5 0 10 2kQ 0 8 3 10 200kQ 1000 2MQ 1kQ 20MQ 1 0 15 10kQ Open voltage less than 3V 20KQ Overload protection DC 250V or AC peak value NOTE A At range 200 Q short circuit the test leads to measure the wire resistance then subtracts it from the real measurement B At range 200 MQ when the test leads short circuit LCD displays 1 0 MQ In the same way the reading is 10 MQ while the test leads short at range 2000 MQ Its normal and doesn t affect the accuracy Please deduct the value from the real measurement C The reading be displayed slowly when the measurement is more than 1 MQ Please wait it to be stable 2 3 6 Capacitance Range 200nF 2 5 20 10pF 100pF 200uF 5 0 10 100nF Overload protection DC 36V or AC peak value 2 3 7 Inductance L 2 5 30 Overload protection DC 36V or AC peak value 2 3 8 Temperature Range Accuracy 20
4. DIGITAL MULTIMETER OPERATION MANUAL 1 GENERAL The instrument is a stable and good performance digital multimeter driven by battery It uses the LCD with 42mm high figure to make the reading clear Unit symbol displaying backlight and the function of overload protection make operation is convenient The instrument has the function of measuring DCV ACV DCA ACA resistance capacitance inductance temperature and frequency and diode triode and continuity test The instrument takes dual integral A D converter as key point is an excellent tool 2 SAFETY NOTES This series meter meets the standard of IEC1010 Please read below notes carefully before operation 1 Do not input a limited voltage which RMS is over DC 1000V or AC 700V when measuring voltage 2 Voltage less than 36V is a safety voltage When measuring voltage higher than DC 36V AC 25V check the connection and insulation of test leads to avoid electric shock 3 Be sure to keep the test leads off the testing point when converting function and range 4 Select correct function and range to avoid fault operation 5 When measuring current do not input current over 20A 6 Safety symbols ZX exists high voltage eee GND G dual insulation N must refer to manual G3 low battery 3 SPECIFICATION 1 GENERAL 1 1 Displaying LCD displaying 1 2 Max indication 1999 3 1 2 auto polarity indication 1 3 Measuring method dual slop
5. e A D transfer 1 4 Sampling rate approx 3 times sec 1 5 Over range indication MSD displays 1 OL or 1 OL 1 6 Low battery indication EJ symbol displays 1 7 Operation 0 40 C relative humidity lt 80 1 8 Storage 10 50 C relative humidity lt 80 1 9 Power one 9V battery NEDA1604 6F22 or equivalent 1 10 Size 190x93 5x37mm 1 11 Weight approx 448g including a battery 2 TECHNICAL DATA 2 1 Accuracy a x reading dgts at 23 5 C relative humidity lt 75 One year guarantee since production date 2 2 Function e DCV e Resistance Q e Temperature C amp F e ACV e Diode continuity testing e Frequency f e DCA e Triode hFE e Inductance L ACA e Capacitance C e Auto power off e Backlight 2 3 TECHNICAL DATA 2 3 1 DC Voltage 200mV 0 5 3 2V 20V 200V 1000V 0 8 10 Input resistance The Max input impedance 10MQ Overload protection Range 200mV DC 250V or AC peak value Other ranges DC 1000V or AC peak value 2 3 2 AC Voltage Range 200mV 0 8 5 100uV 2V 0 8 5 20V 200V 750V Input impedance It is 1MQ at range 200mV or 2V and be 10MO at others Overload protection Range 200mV DC 250V or AC peak value Other ranges DC 1000V or AC peak value Frequency response Range less than 200V 40 400Hz Range 750V 40 100Hz Displaying RMS of sine wave mean value response 2 3 3 DCA Resolution 0 8 10 JUA 10uA 1
6. e on LCD before capacitance measurement and it doesn t affect the measurement 3 When measuring at large capacitance range if capacitor is crept badly or broken LCD displays a value and it s unstable 4 Release the capacitor completely before measuring 4 6 INDUCTANCE MEASUREMENT Set the knob to a proper inductance range and insert the inductor to mA and COM terminal NOTE 1 The LCD displays 1 or OL while the tested inductance is over the selected range Thus the knob should be set to a higher range 2 The inductance may be different due to different resistance on a same inductor 3 At 2mH range should make the test leads short and measure the inductance of wire then subtract from real measurement 4 7 TEMPERATURE MEASUREMENT Set the knob to C range insert the black plug of cold end of thermocouple into mA com and the red plug to COM com put working end into measurement place Display reading is the temperature of measurement place in C amp T NOTE 1 When input terminal is in open circuit if the ambient temperature is over 18 C under 28 C LCD displays the ambient temperature If ambient temperature is lower than 18 Cand over 28 C LCD displays just for the reference 2 Do not try to change the thermocouple or the accuracy cannot be guaranteed 3 Do not input any volt at a temperature range 4 8 FREQUENCY MEASUREMENT 1 Apply test leads or shield cable to COM and V Q Hz terminal
7. off after 10 sec 5 MAINTENANCE Do not try to modify the electric circuit 5 1 Keep the meter away from water dust and shock 5 2 Do not store and operate the meter under the condition of high temperature high humidity combustible explosive and strong magnetic place 5 3 Wipe the case with a damp cloth and detergent do not use abrasives and alcohol 5 4 If do not operate for a long time should take out the battery to avoid leakage Note When signal displays should replace the battery following the steps 6 If the meter does not work properly check the meter as following Solution No reading on LCD ePower off Pls turn on the power eHolding key PLs set a correct mode eReplace battery The signal H appears eReplace battery No current or temperature input eReplace fuse Replace battery eThe specifications are subject to change without notice eThe content of this manual is regarded as correct error or omits Pls contact with factory e We hereby will not be responsible for the accident and damage caused by improper operation eThe function stated for this User Manual cannot be the reason of special usage MB 9805 50
8. red one to V Q Hz terminal 2 Setup the Knob on a proper range V If the voltage range is unsure beforehand please set it on the max then measure diminishingly to reach a resolute value 3 Press the DC AC key down to AC mode to measure AC voltage Oppositely resile the key to DC mode to measure DC voltage 4 Connecting the test leads reliably with the tested circuit the voltage value will be displayed on LCD While testing a DC voltage the reading is voltage and polarity of the point connected by the red lead NOTE 1 While the reading is 1 or OL the voltage is beyond the present range Now you need to set the knob to the higher 2 Do not input a voltage over DC 1000V or AC 750V Please keep the test leads off the circuit while switching the function or range 3 Be carefully while measuring a high voltage DO NOT touch the circuit 4 3 Current measurement 1 Apply the black test lead to COM terminal and the red one to mA or 20A terminal 2 Set the knob to a proper range A If the current under tested is unsure beforehand please set it on the max then measure diminishingly to reach a resolute value 3 Press the DC AC key down to AC mode to measure AC current Oppositely resiling the key to DC mode to measure DC current 4 Connecting the leads with the tested circuit in series the current value is displayed on LCD While testing a DC current the reading is the value of current and polarity of the point connec
9. ted by the red lead NOTE 1 If the LCD displays 1 or OL it means the current is over range Now you need to set the knob to the higher 2 Max input current is 200mA or 20A subject to where the red test lead apply to too large current will blow the fuse Be sure the test is less than 10 seconds Please keep the leads off the circuit while switching the function and range knob 4 4 RESISTANCE MEASUREMENT 1 Apply the black lest lead to COM terminal and the red one to V Q Hz terminal 2 Set the knob to a proper resistance range and connect the leads crossly with the resistor under tested NOTE 1 The LCD displays 1 or OL while the resistance is over the selected range The knob should be adjusted to a higher range 2 When input terminal is in open circuit overload displays 3 When measuring in line resistor be sure that the power is off and all capacitors are released completely 4 Do not input any volt at resistance range 5 When measuring value is over 1MQ the reading will take a few seconds to be stable It s normal for high resistance measuring 4 5 CAPACITANCE MEASUREMENT Apply the knob to proper capacitance range and insert the capacitor under tested into mA and COM terminal be wary of polarity if necessary NOTE 1 If the capacitance under tested is over the max value of selected range LCD displays 1 or OL thus should set the knob to a higher range 2 Its normal that there is a remained valu
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