V&A VA41 User Manual Download

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Contents

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PAGE

1. GENERAL INSTRUCTIONS

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1.1 Precaution safety measures

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1.1.1 Preliminary

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1.1.2 During use

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1.2 Symbols

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1.3 Instructions

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2. DESCRIPTION

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2.1 Instrument Familiarization

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2.2 LCD Display

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2.3 Key pad

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3. FUNCTION DESCRIPTION

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3.1 General Functions

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3.1.1 Auto scan mode

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3.1.2 DATA HOLD mode

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3.1.3 Manual ranging and Auto range mode

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3.1.4 True RMS measurement

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3.1.5

Auto power off setting

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3.2 Measurement Functions

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3.2.1 AC and DC Voltage measurement

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3.2.2 Non-contact electric field detector (EF mode)

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3.2.3 Resistance measurement

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Summary of Contents for VA41

Page 1: ...ion 6 2 2 LCD Display 7 2 3 Key pad 9 3 FUNCTION DESCRIPTION 10 3 1 General Functions 10 3 1 1 Auto scan mode 10 3 1 2 DATA HOLD mode 11 3 1 3 Manual ranging and Auto range mode 11 3 1 4 True RMS measurement 12 3 1 5 Auto power off setting 12 3 2 Measurement Functions 13 3 2 1 AC and DC Voltage measurement 13 3 2 2 Non contact electric field detector EF mode 14 3 2 3 Resistance measurement 15 ...

Page 2: ...20 4 1 General specifications 20 4 2 Measurement specifications 20 4 2 1 AC Voltage 21 4 2 2 DC Voltage 21 4 2 3 Resistance 22 4 2 4 Continuity Check 22 4 2 5 Diode Test 22 4 2 6 Capacitance 22 4 2 7 Current 23 4 2 8 Linear frequency 23 5 MAINTENANCE 24 5 1 General maintenance 24 5 2 Fuse replacement 24 5 3 Battery replacement 25 6 ACCESSORIES 25 ...

Page 3: ...l symbols used on the Meter and in this manual are explained in chapter 1 2 1 1 Precautions safety measures 1 1 1 Preliminary As the possibilities of high transient overvoltages occurred in today s power systems increase more stringent safety standards are set for the electrical test equipment Transients on electrical systems power grid feeder or branch circuits will trigger a series of incidents ...

Page 4: ...in fixed installations such as switchgear and polyphase motors Bus and feeder in industrial plants Feeders and short branch circuits distribution panel devices Lighting systems in larger buildings Appliance outlets with short connections to service entrance CAT Ⅵ Three phase at utility connection any outdoor conductors Refers to the origin of installation i e where low voltage connection is made t...

Page 5: ...mum limits of the input values shown in the technical specification tables When the multimeter is linked to measurement circuits do not touch unused terminals Caution when working with voltages above 60Vdc or 30Vac rms Such voltages pose a shock hazard When using the probes keep your fingers behind the finger guards When making connections connect the common test lead before connecting the live te...

Page 6: ... 1000V in Category III or 600V in Category Ⅳ installations Do not operate the Meter with the case or part of the case removed 1 2 Symbols Symbols used in this manual and on the instrument Caution refer to the instruction manual Incorrect use may result in damage to the device or its components AC Alternating Current DC Direct Current AC or DC Earth ground Double insulated Fuse Conforms to European...

Page 7: ...d the hazards involved He is trained and authorized to energize and de energize circuits and equipment in accordance with established practices When the instrument is opened up remember that some internal capacitors can retain a dangerous potential even after the instrument is switched off If any faults or abnormalities are observed take the instrument out of service and ensure that it cannot be u...

Page 8: ...aying the measuring results and various symbols 2 Keypad Measurement function keys 3 Rotary switch Used for selecting measurement functions 4 VΩ Terminal receiving the red test lead for voltage resistance capacitance diode and continuity measurements 5 uA mA Terminal receiving the red test lead for μA mA measurements 6 A Terminal receiving the red test lead for 6A 10A measurements 7 COM Terminal r...

Page 9: ...6000 COUNTS DIGITAL MULTIMETER USER S MANUAL 7 2 2 LCD Display Figure 2 2 1 2 3 5 4 6 7 8 9 10 11 12 13 14 15 17 16 ...

Page 10: ...matically selects the range with the best resolution 8 MANU The meter is in the Manual Range mode in which the user selects the range 9 HOLD When HOLD function is enabled When delay hold is selected the HOLD symbol will be blinking for 6 seconds 10 MAX Display maximum data 11 MIN Display minimum data 12 Low battery indication Note When this symbol appears it means that the battery needs to be repl...

Page 11: ...C current 5 Power up Option Disables automatic power off feature 2 3 2 RANGE At ACV DCV Ω A mA and μA 1 Press RANGE to enter the manual ranging mode 2 Press RANGE to step through the ranges available for the selected function 3 Press and hold RANGE for 2 seconds to return to autoranging 2 3 3 HOLD Press it to enter the Data Hold mode Used to maintain the measurement data unchanging by pressing the...

Page 12: ...2 3 6 Press the this key backlight on press it again backlight off 3 FUNCTION DESCRIPTION 3 1 General Functions 3 1 1 Auto scan mode When the meter is turned on it will be power on reset to auto scan mode The meter automatically selects the appropriate measurement mode and range according to the measured object In Auto Scan mode press RANGE HOLD MAX MIN keys are valid press SELECT key to exit Auto...

Page 13: ...ange mode The Meter has both manual ranging and auto range options In the auto range mode the Meter selects the best range for the input detected This allows you to switch test points without having to reset the range In the manual ranging mode you select the range This allows you to override auto range and lock the meter in a specific range The Meter defaults to the auto range mode in measurement...

Page 14: ...rage value 3 1 5 Auto power off setting When the meter is powered on it is under auto power off mode The meter will power itself off after 10 minutes if there is not any operation Press SELECT for 2 seconds to wake the meter up You can also rotate the rotary switch to the position of OFF and then restart the meter To disable the auto power off function hold down the SELECT key while turning the me...

Page 15: ...earth ground Voltage is the difference in electrical potential between two points The polarity of ac alternating current voltage varies over time the polarity of dc direct current voltage is constant To measure ac or dc voltage set up and connect the Meter as shown in Figure 3 1 1 Set the rotary switch to the position of EF VOLT 2 Select auto scan mode or press SELECT key to select between AC and ...

Page 16: ...ect the Meter as shown in Figure 3 2 1 Set the rotary switch to the position of EF VOLT 2 Press SELECT key to select non contact electric field detector mode When no or less electric field is detected the LCD shows EF 3 Make the detector in the top of the meter approach to the wire If the detector senses electric field the strength will be showed on LCD by not digits type And the buzzer will sound...

Page 17: ...een the probes an in circuit resistance reading represents the total resistance of all paths between the probes To measure resistance set up the Meter as shown in figure 3 3 1 Set the rotary switch to Ω range 2 Select auto scan mode or press SELECT key to select resistance measuring mode 3 Connect the black and red test leads to the COM and VΩ terminals respectively 4 Connect the test leads to the...

Page 18: ...Continuity is a complete path for current flow The beeper sounds if a circuit is complete These brief contacts cause the Meter to emit a short beep To test for continuity set up the Meter as shown in Figure 3 4 1 Set the rotary switch to Ω range 2 Select auto scan mode or press the SELECT key to activate Continuity Check 3 Connect the black and red test leads to the COM and Ω terminals respectivel...

Page 19: ...ood silicon junction drops between 0 5V and 0 8V To test a diode out of a circuit set up the Meter as shown in Figure 3 5 1 Set the rotary switch to Ω mode 2 Select the auto scan mode or press the SELECT key to activate Diode Test 3 Connect the black and red test leads to the COM and VΩ terminals respectively 4 For forward bias readings on any semiconductor component place the red test lead on the...

Page 20: ...er measures capacitance by charging the capacitor with a known current for a known period of time measuring the resulting voltage then calculating the capacitance The measurement takes about 1 second per range To measure capacitance set up the Meter as shown in Figure 3 6 1 Set the rotary switch to Ω range 2 Select the auto scan mode or press the SELECT key to activate capacitance measuring mode 3...

Page 21: ...oltage capacitors 2 Set the rotary switch to the μA mA or A range 3 Select the auto scan mode or press the SELECT key to select DCA or ACA measuring mode 4 Connect the black test lead to the COM terminal and the red test leads to the μA mA terminal for a maximum of 600mA For a maximum of 10A move the red test lead to the A terminal 5 Break the circuit path to be tested Touch the black probe to the...

Page 22: ...10 3 38 Sample Rate 3 times sec for digital data Display 3 5 6 digits LCD display Automatic indication of functions and symbols Range selection automatic and manual Over Range indication LCD will display OL Low battery indication The is displayed when the battery is under the proper operation range Polarity indication displayed automatically Power source 9V Battery type 6F22 Dimensions 190 L 90 W ...

Page 23: ...0V 100mV 1 0 3 1000V 1V 1 5 5 Above accuracies can be guaranteed within 5 100 of the full range The true RMS meter has residual value within 10 counts when the test leads are shorten but that will not affect the accuracy of measurement 4 2 2 DC Voltage DCV Range Resolution Accuracy 600mV 0 1mV 0 5 5 6V 1mV 0 8 5 60V 10mV 0 8 5 600V 100mV 0 8 5 1000V 1V 1 0 2 ...

Page 24: ...olution 600Ω 0 1Ω Description Continuity beeper 30Ω 4 2 5 Diode Test Range Resolution Test Condition 2 V 0 001V Forward DC Current approx 1mA Reversed DC Voltage approx 2 8V Test Condition Forward DC current approximately 1mA Reversed DC voltage approximately 2 8V 4 2 6 Capacitance Range Resolution Accuracy 6nF 1pF 5 0 5 60nF 10pF 3 0 3 600nF 100pF 6μF 1nF 60μF 10nF 5 0 3 600μF 100nF 6mF 1μF 60mF ...

Page 25: ...be guaranteed within 5 100 of the full range The true RMS meter has residual value within 10 counts when the test leads are shorten but that will not affect the accuracy of measurement Overload protection F 10A 1000V fuse for 10A range F 0 63A 1000V fuse for μA and mA ranges Maximum input current 600mA dc or 600mA ac rms for μA and mA ranges 10A dc or 10A ac rms for 10A ranges For measurements 6A ...

Page 26: ...get water inside the case Remove the test leads and any input signals before opening the case Periodically wipe the case with a damp cloth and mild detergent Do not use abrasives or solvents Dirt or moisture in the terminals can affect readings To clean the terminals Turn the meter off and remove all test leads Shake out any dirt that may be in the terminals Soak a new swab with a cleaning and oil...

Page 27: ...ssible electric shock or personal injury replace the battery as soon as the battery indicator appears Before replacing the battery disconnect test leads and or any connectors from any circuit under test turn the meter off and remove test leads from the input terminals 1 Set rotary switch to the OFF position 2 Disconnect test leads and or any connectors from the terminals 3 Use a screwdriver to unl...

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