Hach sensION3, Instruction Manual, Page: 39 / 52

39
SECTION 5,
continued
Table 5 shows the proper pin connections for 9-pin computer
cables. Using cables that do not match the pin information in the
table may cause undesirable operation.
Connect the RS232 cable to the meter by lining up the holes in
the cable connector with the pins of the meter serial port. Gently
and firmly push the cable into the meter. Then secure the
connection by screwing in the screws on either side of the cable
port (see Figure 5). Connect the cable to the computer in the
same manner.
To transfer data, the communication parameters (baud rate, data
bits and parity) of the meter and the computer must match. Once
the communication link is established, press
PRINT
to send data to
the computer.
Use a communications software, such as HachLink™
(Cat. No. 49665-00) to collect data from the instrument.
HachLink is a Windows-based application that allows a personal
computer to capture data from several Hach instruments,
including the sens
ion
™
electrochemical meters. The captured
data can be stored as a text file in a spread-sheet compatible
format or a free-format text. Data captured in the spreadsheet
format is easily transferred into most spreadsheet programs (i.e.,
Excel
®
, Microsoft
®
Works, Lotus
®
123) for graphing
and reporting.
To install and run HachLink™ Data Capture, the computer and
software must meet the following minimum requirements:
Table 5 Standard 9-pin to 9-pin Computer Cable
9-pin D Connector Socket Computer 9-pin D Connector, plug
Pin Signal Name Pin Signal Name
2 RXD 3 TXD
3 TXD 2 RXD
4 DTR no connection ---
5 GND 5 GND
6 DSR no connection ---
7 RTS 8 CTS
8 CTS 7 RTS