BALLANTINE LABORATORIES, Inc. MODEL 3207 MICRO-OHM METER
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4.2 COMPUTER INTERFACING.
The 3207 Micro ohm meter is equipped with an isolated 3 wire RS232 interface for PC. The
interface is available as a 9 pin ‘D’ type female connector located on the rear panel of the
instrument.
Hardware signals:
1. Pin Number 2 is Receive Data pin, which will mate with Pin Number 2 of the 9
Pin connector of the PC Serial Port.
2. Pin Number 3 is Transmit Data pin, which will mate with Pin Number 3 of the 9
Pin connector of the PC Serial Port.
3. Pin Number 5 is Ground pin, which will mate with Pin Number 5 of the 9 Pin
connector of the PC Serial Port.
To install HyperTerminal on your PC,
Click on ‘Start’
Select ‘Setting’
Select ‘Control Panel’
Click on ‘Add/Remove Programs’
Select ‘Windows Setup’
Double Click on ‘Communication’
Select ‘HyperTerminal’
Click on ‘OK’.
To Run HyperTerminal,
Click on ‘Start’
Select ‘Program’
Select ‘Accessories’
Select ‘Communications’
Click on ‘HyperTerminal’.
The software of the instrument accepts the command tokens as listed below from the PC
and takes the necessary actions.
While interfacing, select parameters as
1. BAUD RATE = 9600.
2. PARITY = NONE
3. DATA BITS = 8
4. STOP BITS = 1
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