Section 9
Operation With a Printer or Computer
RS232
Printer
Port Spedfic:ition
Band Rafe:
l20(1
Darn Fonnat: I sL,n. bit. s Dal1 bils
2 >top bjis, No parity bil
Voll.:l.gc levels: :l:5V
Connection Details
0
Connect a printer (set at 1200 Baud) to the meter via the
RS232C port on the back oftbe meter
®
Follow the calibration procedure given in Section 2
9
To print out a sample reading, press the Send key. The first
time the key is pressed the following printout is obtained
0
Pressing and releasing the Send key subsequently will result
in a printout of the displayed reading and temperature only.
0
To obtain a printout of other parameters for the same sam
ple, press the Mode key and then the Send key
©
To print a new identifier, press and hold down the Send key.
DATE ..................... .
OPERATOR .............. .
SAMPLE. ................ .
COND
=
lOOOµS/cm T=21.7
°
C
15
Computer
Connect a computer using 1200 Baud via the RS232C port at the
back of the meter. A computer program is required to receive and
send characters from the computer. The current readings can be
sent to the computer by pressing the Send key. Each line is termi
nated with a Carriage Return (CR), Line Feed (LF). All characters
are ASCII printable alpha-numeric
Two commands, CA and RD can be sent from the computer:
CA-Send Calibration Data
Command-CA
1 CR LF
COND = 1413 µSiem CR LF
T
=
22.0
°
C CR LF
K
=
0.997/cm CR LF
Tb
=
25.0
°
C CR LF
RD -Send Current Readings
Command-RD
COND = 1413µS/cm CR LF
TDS =944mg/LCR LF
Res
=
0.00lMD.cm CR LF
T = 21.5
°
C CR LF
16
