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CHAPTER 5 Connection to PC
This chapter describes how to connect and communicate with the Oxygen Optode 4330, 4831 and 4835
using the RS232 protocol. Sensor configuration is described in chapter 5.7
Optional Sensor Cables: 3855 (1.5m) for laboratory use or Sensor Cable 4865 are used with 4330/4835
and cable 5335 with the 4831, refer Figure 5-1 for the correct cable to be used for connection to the PC in
the office/lab.
Note! The connector on Sensor Cable 3855 is made of Aluminium, due to risk of corrosion it is not
recommended for use in saltwater. Same pin configuration as Cable 4865.
Either connect the additional USB plug in a USB port for providing power to the sensor (the USB port
normally gives 5V power), or connect the USB plug to an included extension of the USB and connect to
external power (5-14V), refer Figure 5-1.
Note! If power cannot be obtained from an USB port a practical solution is to use a 9V alkaline battery
(6LF22) to set the sensor up or log it in the laboratory.
Sensor Cable 4865/5335 are also available in other lengths. The cable has a titanium plug, and can be
used in applications that require a direct connection to a PC in RS232 operations.
Connection to
the USB port for
power supply
(alternative1)
Connection to an
external power
supply
(alternative2)
Figure 5-1 Sensor Cable 3855.
See Appendix 8 for illustrations of all available cables.
5.1 RS232 Communication Setup
Most terminal programs can be used for RS232 communication with the sensor when connected to a PC,
*)
e.g. HyperTerminal
by Hilgraeve Inc (included in most Microsoft's operating systems). Other alternatives
which can be downloaded from the Internet include Tera Terminal Pro.
For sensors with default configuration the following RS232 setup should be used:
9600 Baud
8 Data bits
1 Stop bit
No Parity
Xon/Xoff Flow Control
TD 269 OPERATING MANUAL
OXYGEN OPTODE 4330, 4831, 4835
June 2017
page 27 of 93
Connection to the
PC serial Port
Connection to
the sensor
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