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HMR3000 User's Guide
2.3 HMR3000 Connection Diagram—Computer RS-232 to HMR3000
Unregulated Supply
Regulated Supply
2.4 Electrical Connections
Connect the cable between HMR3000 and the serial port of the IBM compatible computer. Connect AC adapter or
alternate power source to supply power to the HMR3000 (6 to 15V at the unregulated power input, or 5V regulated).
If you purchased a theHMR3000 Demonstration Kit, use the power and interface cable to connect between HMR3000 and
your computer's serial port. Make sure the line voltage selection (110 or 220V) in the adapter is appropriate and that 6
Vdc or higher output voltage (<15V) is selected.
2.5 Communication - RS-232 Option
The HMR3000 communicates with an external host via RS-232 or RS-485 electrical standard through simple ASCII
character command strings. A host computer can direct operation of HMR300 with these commands. With the RS-232
demo kit option a user friendly graphical interface (PC DEMO Software) is provided to direct operation of the compass.
2.6 Getting Data Using PC DEMO Software
Once the power and interface cables are connected and the PC DEMO software is installed in your computer, you can
begin to acquire compass data from the HMR3000. See the beginning section on software installation if you have not
done this yet.
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