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Micro Seven VM10a, Operator'S Manual

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30

Chapter 10 

Stand-alone operation 

 

 

Voice/sound triggered measurement mode 
 
Pushing MIC TRIG button switch displays setting for microphone triggered measurement. The 
first digit indicates whether voice/sound trigger is enabled when it is blank. It is disabled when it 
is “1”. The next three digits indicates microphone sensitivity with 000 (most sensitive) and 255 
(least sensitive). As a factory condition, you will see 1032 which shows the voice/sound trigger 
is disabled. While pushing MIC TRIG switch, push ON/OFF momentarily. The number is 
changed to 032 to enable voice/sound trigger. Release MIC TRIG switch. Shout some word in 
front of microphone area under banana jacks on VM10 front panel. You will hear voiced 
measurement value from the speaker. 
 
To change the microphone sensitivity, push UP+ or DOWN- while MIC TRIG switch is pushed. 
For example, push DOWN-to obtain about 015 while pushing MIC TRIG switch to increase 
microphone sensitivity to trigger in less sound. Release MIC TRIG switch. Then shout any word 
away from VM10. You may hear voiced measurement. 
 
Push MIC TRIG button switch and push ON/OFF switch to disable the voiced measurement by 
seeing 1 in the first displayed digit. 
 
Value triggered measurement mode 
 
Pushing VALUE TRIG switch displays whether value-change trigger mode is enabled when the 
first digit display is blanked or value-change trigger mode is disabled when the first digit display 
shows “1”. While pushing this switch, push ON/OFF switch to change to enabled or disabled. 
The last three-digit displays value-change triggering level. Push UP+ or DOWN to change the 
trigger level while pushing this switch. 
 
As a factory condition, the value trigger mode is disabled. Push the ON/OFF switch while 
pushing VALUE TRIG switch to enable this mode.  
Set measurement mode to 2volt DC mode by pushing mode and range switches. The 
measurement indicates close to .000. Then apply 1VDC or similar value across VHI and VLO 
banana jacks. You will hear voiced measurement of data. 
Input voltage needs to be returned to close to zero volt to reset value trigger mode. 
Continuously applying same value across banana jacks will not produce voiced measurement. 
 
In resistance measurement mode, the trigger value is less value to trigger voiced measurement. 
This is opposite from DC volt and AC volt modes. For example, if value triggered measurement 
is enabled in resistance mode, shorting VHI and VLO banana jacks produces voiced 
measurement.  
 
There is no value triggered measurement mode in temperature mode. 
 

Front-panel controls: 
 

Summary of Contents for VM10a

Page 1: ...is publication may not be reproduced in any form without the written permission of Micro Seven Inc All requests for repairs should be directed to the factory This instrument is warranted against defective workmanship and materials for a period of six months There will be no warranty when the instrument is misused or when the factory seal on the instrument is broken Printed in U S A Specification a...

Page 2: ... Installation Chapter 4 Basic measurement with app Chapter 5 Changing voice segment Chapter 6 Changing Auto Start Timer Chapter 7 Downloading Factory Default Voice Segment Chapter 8 Calibration Chapter 9 DMM data and trace history files Chapter 10 Stand alone operation Chapter 11 Troubleshooting ...

Page 3: ...lt in microphone value change mode for starting A D automatically for input exceeding certain value and continuous mode VM10 s voiced measurement data output eliminates looking of display data on conventional display The value change mode provides automatic voiced data without looking at a display area Each voice segment of numerical and legend voice segments is programmable through a built in mic...

Page 4: ...4 MICRO SEVEN Model VM10a Scope Meter oscilloscope Talking Digital Multi meter is shown in above picture The rear view of VM10a is shown below ...

Page 5: ...5 ...

Page 6: ...smart phone app is shown below The time setup is 50 μs div The vertical setup is 0 5V div with 0V at its center The triggering is set as Free Run The trigger level that may be changed by swiping up or down is shown as a red dotted line Number of color traces is changed among 1 8 colors ...

Page 7: ...for DC volt and 3 for 50Hz to 5 kHZ in RMS measurement Oscilloscope input range same as DC volt except 100mV 1 000V 10 00V 100 0V 500V for battery option Resistance 2 000k ohm 20 00k ohm 200k ohm 2 000meg ohm 5 True RMS measurement including DC AC component Measurement inputs VM10a three banana jacks Red Black and Blue J1 Red input terminal J2 Black input terminal J3 Blue AC coupled input terminal...

Page 8: ...ce Generation Recording in factory default voice or in your own voice only for VM10a Note voice announcement of measurement is done by audio speaker in DM10a not by audio speaker in smartphones Downloading factory default voice file is available in the app Note VM10a is also loaded with the factory default voice file Numerical voice data 0 5 seconds 0 1 2 3 4 5 6 7 8 9 decimal point over range ind...

Page 9: ... any factory seal is broken Service is performed at the factory Calibration procedure included in the app description in Chapter 8 in this manual Models available VM10a VM10ac or VM10 VM10 is for stand alone operation with RS232c interface instead of smartphone wireless operation Optional features 1 International AC DC power adapter for 90 250VACRMS and 50 60Hz power input 2 Car battery adapter 3 ...

Page 10: ...10 The front panel of VM10ac is shown below ...

Page 11: ...reless standard Open VM10a app on the smartphone After few seconds the screen will show very similar like the following Received VM10_D2D9 The device ID does not match with received device ID Enter the correct 4 digit Device ID after _ above In the text field shown D2D9 Close and reopen this app If you don t see the above display see the Chapter 11 Troubleshooting Enter the same 4 digit code like ...

Page 12: ... AC waveform at the same time in the screen See 4 2 App Mode Pre trigger mode and App Mode Trigger point for trace display In the Scope Mode select time base in the TB for slowing time base or TB for faster time base The time base and input signal range is displayed in the text field and also in the result screen See 4 2 App Mode Pre trigger mode and 4 3 App Mode Trigger point for triggering input...

Page 13: ...13 ...

Page 14: ...14 4 3 2 Trigger mode with pre trigger The screenshot with pre triggered event is shown with two horizontal divisions delaying for the same signal as the previous screen ...

Page 15: ...15 4 3 3 Trigger mode Trigger starts trace display when input voltage moves passing the trigger point downward No pre trigger is enabled ...

Page 16: ...16 4 3 4 P P Auto Mode The P P Auto trigger starts trace display when the input voltage moves half point between peak and valley of input voltage at positive going direction in a screenshot below ...

Page 17: ...17 4 3 5 Peak Mode The Peak mode starts trace display when the input voltage reaches its peak ...

Page 18: ...18 4 3 6 Valley Mode The Valley mode starts trace display when the input voltage reaches its valley ...

Page 19: ...19 4 3 7 One Shot and One Shot One Shot trace display starts when input signal crosses trigger level upward To abort trace measurement push Stop No pre trigger is enabled ...

Page 20: ...20 One Shot trace display starts when input signal crosses trigger level upward To abort trace measurement push Stop Pre trigger is enabled ...

Page 21: ...21 One Shot trace display starts when input signal crosses trigger level downward To abort trace measurement push Stop Pre trigger is disabled ...

Page 22: ...h pre trigger mode is intended for displaying signals that do not pass the trigger level initially Erroneous displays of sine wave may result when One Shot or One Shot with pre trigger mode is selected 4 4 App Mode Measurement storage Smart phone screen showing measurement data and traces are stored When you want to store the measurement data and or trace display enter file ...

Page 23: ...le click the number to be decreased See Automatic File Storage for continuously recording measurement data and result 4 5 App Mode Color traces 1 color Different color traces may be shown on screen after incrementing colors to maximum eight colored traces 4 5 App Mode Audio On off Voice generation at VM10A may be turned on or off by pushing the button for only Meter Mode 4 6 App Mode Operating Scr...

Page 24: ...lay the sound of the voice segment name Record Voice button to record your voice for the voice segment name If there is no recording sound detected after clicking the Record Voice button there is no change in voice segment After finishing 0 5 seconds voice segment changes click the two seconds voice segment change or click the Short Voice button to advance to Long Voice In the Long Voice the voice...

Page 25: ...uto start timer is only effective when the Auto switch is on after the Go Run is clicked To change the auto start timer click either SEC to increase or SEC to decrease it There is no starting time delay in the continuous auto start mode but there always is time delay between measurements Select Record or No Record for storing test result while the screen is showing Auto Run For each starting the A...

Page 26: ...reen button is changed to Downloading Click Go Run button to down load the factory default voice file It takes twelve minutes to download it Caution the entire voice segments are replaced by the factory default voice segments Your own voice segments that were recorded are destroyed by this action ...

Page 27: ... screen shows Apply 1 8VDC Here apply 1 8V DC at input and try to match the measurement value by pushing CAL or CAL button Then push C 2V button to advance to next procedure The following screen shows Apply 180mVDC Here apply 180mV DC at input and try to match the measurement value by pushing CAL or CAL button Then push C200mV button to advance to next procedure The following screen shows Apply 18...

Page 28: ...by pushing CAL or CAL button Then push C 200k button to advance to next procedure The following screen shows Connect 1 8 Meg ohm resistor Connect 1 8Meg ohm resistor at input and try to match the measurement value by pushing CAL or CAL button Then push C 2meg button to advance to next procedure The following screen shows Apply 1 8VDC To stop calibration push Calibration button This is the end of c...

Page 29: ...s 1 Manual way For storing test results choose file number by incrementing the number between MEM and POP Click MEM To see the stored test result click POP There is limit of storing test result for one thousand 2 Automatic way Set up Auto continuous measurement with Changing Auto Start Timer in Chapter 6 ...

Page 30: ...e first displayed digit Value triggered measurement mode Pushing VALUE TRIG switch displays whether value change trigger mode is enabled when the first digit display is blanked or value change trigger mode is disabled when the first digit display shows 1 While pushing this switch push ON OFF switch to change to enabled or disabled The last three digit displays value change triggering level Push UP...

Page 31: ...ch to change to enabled or disabled The last three digit displays value change triggering level Push UP or DOWN to change the trigger level while pushing this switch CONTINUOUS pushing this switch displays whether continuous or automatic triggering mode is enabled when the first digit display is blanked or continuous or automatic triggering mode is disabled when the first digit display shows 1 Whi...

Page 32: ...eration Installation Received VM10_D2D9 The device ID does not match with received device ID Enter the correct 4 digit Device ID after _ above In the text field shown D2D9 Close and reopen this app 3 VM10a is not detected or VM10a power is turned off or VM10a quits while working When the sign Scan Stop is shown on the screen push the same area as Scan Stop Scanning will be displayed If there is st...

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