Hach-Lange BODTrak II Basic User Manual - Manual (Page 6)

Figure 1 External connections
1 Power switch 3 Serial I/O port
2 DC power connector
Connect the RS232 interface
All RS232 connections are made through the serial I/O port. Connect the
9-pin D connector of a computer interface cable to the serial I/O port on
the instrument (
Figure 1 on page 6). Connect the other end of the cable
to the computer serial I/O port (COM 1 or COM 2).
The instrument is equipped as Data Communication Equipment (DCE).
The instrument operates at 9600 baud with 8 data bits, no parity and one
stop bit. The computer or printer will not receive complete transmissions
if the device cannot continuously receive at 9600 baud.
Note: The use of the specified cable or an equivalent shielded cable is necessary
to meet radio frequency emissions requirements.
Bottle connections
Each bottle position/channel has the applicable tube numbered with a
plastic sleeve. The bottle positions are numbered 1 through 6 with
number 1 in the back left corner of the chassis. Use the channel
selection keys as a guide to the bottle positions
Figure 2 on page 6.
User interface
The instrument display and the keypad are shown in Figure 2 .
Figure 2 Display and keypad
1 Display 4 Arrow keys
2 Channel selection keys 5 Power indicator
3 ON and OFF keys 1
1 The ON and OFF keys are used to start and stop a test. They do not power
the instrument on and off.
6 English