Section 3 -
(Tx Version Only) Operation With a Printer or Computer
Printer
1.
Connect a printer (set at 1200 Baud) to the meter via the RS232C port on the back panel.
2.
Follow the calibration procedure given in Section 2
3.
To print out a sample reading, press the Send key. The first time the key is pressed the
following printout is obtained
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
terminated with a Carriage Return (CR), Line Feed (LF). All characters are ASCII printable
alpha-numeric
Three commands, CA, PR and RD can be sent from the computer:
DATE………………….
OPERATOR…………...
SAMPLE………………
pH = 7.00pH T=21.7°C
Command—CA
1 CR LF
pH
= 7.06 CR LF
T
= 15.8 °C CR LF
mV
= -0.2mV CR LF
2 CR LF
Second calibration point
Command—RD
pH
= 7.00pH CR LF
T
= 21.5°C CR LF
mV
= 0.2mV CR LF
CA—Send Calibration Data
RD –Send Current Readings
Command—PR
Sl
= 95.3% NERNST CRLF
E°
= 5.2mV CR LF
PR –Send Probe Status Data
RS232 Connection details
Rx
Tx
CTS
GND
4.
Pressing and releasing the Send key subsequently
will result in a printout of the displayed reading and
temperature only.
5.
To obtain a printout of other parameters for the
same sample, press the Mode key and then the
Send key
6.
To print a new identifier, press and hold down the
Send key.
