Welch Allyn Duet CO2 Module - User Manual - Manual (Page 31)

Duet CO
2
Module OEM Implementation Manual
Welch Allyn OEM Technologies Confidential Page 31
Configuration Commands
Configuration commands instruct the module to temporarily modify specific default settings for
measurement criteria. A new pump flow rate may also be specified.
A description of these commands is included in the following table.
Host Command Description
Change CO
2
waveform update rate
Allows the host to specify how often the module sends a CO
2
waveform data packet. The sensor generates a CO
2
measurement on
every cycle of the chopper motor. The maximum update rate is the
chopper motor’s period of 30 msec. The host may program the rate to
every xx cycles, where xx is the number of cycles per packet.
where xx (ASCII) defines the CO
2
waveform update
rate based on the number of chopper motor cycles.
xx range 00h to FFh
xx default 01h, 30 msec interval
Examples:
send a CO
2
waveform data packet every cycle of
the chopper motor (1 × 30 msec interval)
send a CO
2
waveform data packet every 5
th
cycle of
the chopper motor (5 × 30 msec interval)
send a CO
2
waveform data packet every 255
th
cycle
of the chopper motor (255
× 30 msec interval)
Change breath data clear rate
Allows the host to specify how long the module waits for a new breath
data packet before clearing the breath data (ETCO
2
= 00h / RR = 00h
/ InsCO
2
= 00h).
where xx (ASCII) defines the “no breath” timeout in
sec
xx range 10 to 60 sec (0Ah to 3Ch)
xx default 0Fh, clear breath data after 15 sec of “no breath”
clear the breath data after 10 seconds of “no breath”