16. RS232 PC SERIAL INTERFACE
The instrument has RS232 PC serial interface via a 3.5
mm terminal ( 3-19, Fig. 1 ).
The data output is a 16 digit stream which can be
utilized for user's specific application.
A RS232 lead with the following connection will be
required to link the instrument with the PC serial port.
Meter PC
(9W 'D" Connector)
Center Pin............................................
Pin 4
(3.5 mm jack plug)
Ground/shield...........................................
Pin 2
2.2 K
resister
Pin 5
The 16 digits data stream will be displayed in the
following format :
D15 D14 D13 D12 D11 D10 D9 D8 D7 D6 D5 D4 D3 D2 D1 D0
Each digit indicates the following status :
D15 Start Word
D14 4
D13 ATC, Temp.= 1, Ph=2, mV=3, DO Temp.= 4, O^2=5
CD Temp.= 6, CD=7, TDS =8, Salt%=A, Hardness=B,
Resistanc=C
48
To Next Page
Loading...
