Welch Allyn Atlas Operator's Manual page 82

A.9 I/O Communications (Models 622xx & 623xx)
Connector
Nurse Call Signal
Serial Interface
Protocols
A.10 End Tidal CO
Measurement Method
Measurement Range
Measurement Accuracy
Standard Conditions
Breath Rate Range
Breath Rate Accuracy
Display Units
Resolution
Alarms
(Model 623xx)
2
RJ45 socket on rear of case
Normally open relay contacts between pins #1 and
#8 of RJ45 connector. Contacts closed when any
alarm is audible.
Normally closed relay contacts between pins #2
and #8 of RJ45 connector. Contacts open when any
alarm is audible. Contacts rated for 1 A, 240 VAC.
Bi-directional RS232; 9600 baud, 8 bit, 1 stop bit,
no parity, no flow control
Pangea SIO command interface
Welch Allyn serial communications protocol
Sidestream
0 to 98 mmHg
Percentage and kPa conversions are based on
current barometric pressure.
Ambient temperature 15ºC to 45ºC:
0 to 40 mmHg: ±3 mmHg;
41 to76mmHg: ±8% of reading;
77 to 99 mmHg: ±10% of reading.
Ambient temperature 5ºC to 15ºC and 45ºC to
55ºC:
0 to 40 mmHg: ±4 mmHg;
41 to76mmHg: ±10% of reading;
77 to 99 mmHg: ±12% of reading.
Accuracy unspecified for breath rates >30
breaths/minute.
Automatic compensation to comply with BTPS.
BTPS CO = (internal measurement) x 1.03
2
5 to 100 breaths/minute
±1 breath/minute or ±5%, whichever is greater
mmHg, %, kPa; user selectable
1 mmHg
High and Low CO
2
High and Low Respiration Rate
70
measurement