Micro Seven VM10C User manual

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OPERATOR’S MANUAL
MODEL VM10C
Micro Seven, Inc.
1095-K N.E. 25
th
Hillsboro, OR 97124 U.S.A.
phone: [phone]
fax: [phone]
[e-mail]
www.microseveninc.com
Copyright, 

2013 by Micro Seven, Inc. All right reserved.
Contents of this 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 and price change privileges are reserved.

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Introduction
Micro Seven, Inc. 's model VM10-C provides voiced measurement data output in your own voice in any language.
The measurement includes DC Volt, AC Volt, and resistance. The measurement mode includes voice-trigger mode
for starting A/D with audio input through a built-in microphone, value-change mode for starting A/D automatically for
input exceeding certain value, continuous mode, and computer interface mode. VM10's voiced measurement data
output eliminates looking of display data on conventional display; thus, the value-change mode provides automatic
voiced data without looking at a display area. Each voice segment for numerical and legend voice element is
programmable via a built-in microphone by using control software, and the recorded voice may be saved at a file in
a computer or downloaded into VM10-C. The PC interface enables PC-controlled measurement of DC and AC
voltage, and resistance.
Original MICRO SEVEN-Model VM10, HAND-HELD Voiced Multi-meter is shown in above picture. VM10-C does not contain
LCD display, top cover switches, temperature measurement , and audio connectors.
Features
- Voiced measurement data output for DC Volt, AC Volt, and resistance.
- Value trigger mode to do automatic measurement
- No need to look measurement display anymore
- Continuous measurement
- Microphone-triggered measurement
- Measurement data output to PC via RS232
- Battery operation (with optional internal rechargeable battery)

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- Programmable voice segments
- Create international vocabulary
- International AC/DC adapter option for 90-250VAC in four different power plugs
- Upload/download voice text
- Small, 4” x 1.75” x 7.5”
- Battery and AC/DC Operation (optional)
- Low cost, portable and hand-held
- Car battery adapter and carrying case (optional)
- 6 month warranty
Specifications:
Measurement modes and ranges and accuracy:
DC volt: +/-0.200mV, +/-2.000V, +/- 20.00V, +/- 200.0V, +/- 500V, +/- 0.5 %
AC volt: 1.000V, 10.00V, 100.0V, 500V, AC-coupled internally, True RMS, 50 Hz to 3 kHZ, +/- 1%
Resistance: 2.000k ohm, 20.00k ohm, 200k ohm, 2.000meg ohm, +/- 1%
Measurement inputs:
Inputs may be elevated up to +/- 500VRMS input with respective to the earth ground while maintaining data
communication at RS232 interface.
Front-panel controls:
J4: not available for VM10C
J5: not available for VM10C
Built-in microphone
SW 1, Mode switch, short push for announcing current mode, longer push to change to next mode
SW 2, Range switch, short push for announcing current range, longer push to change to next mode
Note: Pushing SW1 and SW2 simultaneously will place VM10-Cinto mode-programming.
SW 3 Start button for manual push button for starting voiced measurement
Power indicator
SW4: Power switch
J1 and J2: Input terminals for volt DC, volt AC, resistance
J3: not used
Rear panel description:
12VDC input connector (from 117V AC/DC adapter)
D-sub9 for RS232 interface
Numerical voice data-0.5 seconds: 0,1,2,3,4,5,6,7,8,9, decimal point, over-range indicator, and minus sign
2 seconds voice data: Unit of measurement (DC volt, AC volt, kilo-ohm, and meg -ohm)
Audio output is output via built-in speaker.
Computer requirement and interface: Windows system
Control software:
Warning: when RS232 interface is connected to PC with cable, measurement terminals are shorted to
ground.
1. Measurement mode and range selection
2. Measurement start (trigger) mode selection (continuous, voice trigger, and value trigger mode)
3. Recording voice data into VM10
4. Calibration
5. Saving/loading measurement set-up data and VM10-Cprogrammed data
6. Download/upload voice data
7. PIN programming (not used)
8. Terminal mode
VM10-Cstandard equipment list:
The standard VM10-C contains RS232 interface, 8-ohm regular speaker, 117VAC /DC power adapter, and VM10-
CControl Software (Windows operating systems)
AC/DC Adapter: 12VDC unregulated, 800mA maximum

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Calibration: calibration procedure and software is provided.
Power On Indicator: green LED display on front panel
Dimensions: 19 cm (4") W x 4.5 cm (1.75") H x 10 cm (7.5") L
Weight: 500g (1.1 lbs.)
Environmental: Operating temperature: 0 to 35 degree C, Humidity: 85% RH at 35 degree C
Warranty/Service: 6 months limited warranty. No warranty if any factory seal is broken. Service is performed at the
factory, usually within 5 working days.
Optional features:
1. Internal rechargeable battery
2. International AC/DC power adapter for 90-250VACRMS and 50/60Hz power input
3. Car battery adapter
4. USB/RS232 adapter
1. Battery option with Ni-Cad battery pack: Power: 2.5 hours of battery operation
Recharging time: 24 hours
Charge/discharge cycles: 100 times minimum
Battery replacement may be done at our factory.
2. USB Adapter is available to interface USB port for PC instead of RS232.

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OPERATION
Power Supply Selection and internal optional rechargeable battery
The VM10-C may be operated with standard or optional AC/DC Adapter, internal optional rechargeable battery, or
Car Battery Adapter (external DC operation). The standard AC/DC Adapter that is supplied with VM10-C requires
117V input power. The optional International AC/DC power adapter is available for operating VM10-C in foreign
countries where different AC power and power plugs are required.
Internal optional rechargeable battery Operation
Internal optional rechargeable battery provides power for VM10-C when there is AC power loss, and it provides
power with or without the power connector at VM10-C rear panel is connected or not. For charging battery, the
power switch must be turned off.
Voice trigger mode: voiced measurement is started when excessive audio is input near microphone on the front
panel.
Value trigger mode: voiced measurement is started when input value across VHI and VLO exceeds certain level.
Automatic trigger mode: voiced measurement is started automatically.
First time operation and using control software, vm10.exe
Warning: Remove all connections at measurement input terminals. When RS232 cable is connected to PC,
measurement input terminals are shorted to earth ground. When calibration is required, voltage sources for
calibration are required to be floated with respect to earth ground potential.
Make a VM10 directory in your PC, and copy all files in the disk or CD that is supplied into the directory. Find out
RS232 communication port number in device manager in the control panel of Windows. If it is other than com1, use
a text editor to edit to change from “COM1:” in a file “commport” to your assigned communication port number. If
USB/RS232 option is required to interface USB in your PC to RS232 at VM10, install USB/RS232 interface by using
a separate CD that is supplied with USB/RS232 interface.
Open the directory “VM10” in your hard disk directory, and click vm10.exe.
There is already voice segment recorded in VM10, but you must record VM10-C with your own voice after following
instruction in the control software.
The control software provides the following:
Measurement mode and range selection
Measurement start (trigger) mode selection (continuous, voice trigger, and value trigger mode)
Recording voice data into VM10C
Calibration
Saving/loading measurement set-up data and VM10-C programmed data, factory default programmed data is also
provided.
Download/upload voice data
PIN programming (not available now. It was intended for telephone interface option)
Terminal mode to enter ASCII commands
Automatic recording of received measurement data
Digital data is stored as a text file in PC (VM10testdata.txt)
RS232 interface:
To interface VM10-C to other computer or to develop your own software or use Hyperterminal instead of our control
software, the following RS232 programming parameters need to be set up in your computer to interface VM10:
Baud rate: 57600
ByteSize = 8;
Parity = NOPARITY;
StopBits = ONESTOPBIT;

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Rts/CTS hardware handshake
Trigger command to start voiced measurement data and receive data over RS232: T
Mode register programming: M930n where n is 0 for Volt DC, 1 for Volt RMS, or 2 for resistance
Mode inquiry: to find mode setting: Q93
Data output: 00 for volt DC, 01 for volt RMS, or 02 for resistance
Range register programming: M940n where n is 0 for the lowest range like 200mVDC or 2k ohm.
Range inquiry: to find range setting: Q94
Data output: 00 for 200mVDC, 01 for 2VDC in volt DC mode.
Sound volume: MBD(n1)(n2)
Continuous mode rate: MAB(n1)(n2) where n1 and n2 forms a hexadecimal number. Multiply two seconds each
counts.