Welch Allyn LC101 CO2 Module - User Manual - Manual (Page 57)

LC101 CO
2
Module OEM Implementation Manual Appendix A - Software Prodedures
Welch Allyn OEM Technologies Confidential Page 57
1. Initialize breath data update rate <O00>.
2. Request ambient barometric pressure <C22>.
3. Divide ETCO
2
(in mmHg) value by ambient barometric pressure (in mmHg). The result is the
ETCO
2
value as a percentage of the barometric pressure.
Zero Calibration Sequence Example
Seq. Host Module Description
1 <Q7F0> Host sends Unprotect command.
<q7F0> Module responds to command from host.
2 <C12> Host sends Perform Zero Calibration command.
<S6325>
<S6X03>
<S6321>
<S6323>
Module responds with status - Calibration in Progress, or
if not in unprotected measurement or autorun mode, response is Invalid
Operation (use <Q7F0>), or
if the previous calibration is active, response is
Cal. Already in Progress,
or
if the LC101 had been operating for < 5 min., response is Cal. Low Run
Time.
3 <C00> Host polls for completion of sampling.
<S6325>
<S6326>
<S6329>
Module responds with status – Calibration in Progress. Repeat this
step until a response other than <S6325> is returned.
Module responds with status – Calibration OK, or
if acquiring data does not meet specifications, response is Unable to
Perform Cal., Data Error.
4 <Q7F1> Host sends Protect command.
<q7F1> Module responds to command from host.