Bayer HealthCare Rapidlab 800 - Manual (Page 308)

4Ć24 800 Series Operator's Manual
D5 No Endpoint:
pO
2
pCO
2
Problem
Sensor does not reach stable reading within predefined time limit.
Qualifiers: pO
2
pCO
2
Solutions
NOTE:ĄĂ If D codes also exist for reagent problems such as D23, D24, or D29,
correct these problems first, then correct the D5.
If a D5 for pCO
2
occurs twice in a 4-hour period, perform QC analysis. If the
pCO
2
result is out of range, replace the sensor.
Ensure measurement module door was not opened during measurement. If door
was opened, repeat the sample analysis.
Perform a gas two-point calibration.
Deproteinize the sample path as described in Deproteinizing the Sample Path in
Section 3.
Perform the Measurement Test for the affected sensor as described in
Measurement Test, page 4-70.
Replace the affected sensor as described in Replacing the Measurement or
Sample Ground/ Temperature Sensors in Section 3.
If the D code reappears, contact your Service Representative.
D5