C-2
The instrument is ready to monitor; however, it is necessary to configure
the unit to your specific requirements. Your Chillgard RT Gas Monitor
may contain an internal Multi-Point Sequencer, enabling your unit to
sample from up to eight individual sampling locations. Your unit also
contains several other features described in this appendix:
• RS-232 output
• Remote Front Panel capability
• Sampling point identification.
Table C-1. RS-232 Parameters
COMMUNICATION 9600 Baud
PARAMETERS 8 bits
No parity
One stop bit
Three types of messages can be transmitted from the RS-232 port:
• status
• data and
• events.
Status
Status is the first message.
• The first seven characters are the gas type.
• The next three characters are the point number, followed by the
concentration and the units.
• The second line is the instrument state and the alarm level.
• The Trouble State shows the type of fault detected; see TABLE C-2
• This message is sent every 10 seconds.
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