Siemens Rapidlab 1200 - D2 Codes; D2 Excessive Drift: Po Pco

6-48 Rapidlab 1200 Operator’s Guide: Troubleshooting
02087462 Rev. V
D2 Codes
D2 Excessive Drift: pO
2
pCO
2
Problem Corrective Action
Sensor drift is
beyond predefined
limits during
calibration
operations.
Correct any reagent problems such as D23 codes before you
attempt to correct this D code.
• If the sensor was newly installed or if maintenance was
recently performed, allow sufficient time for the sensor to
equilibrate.
• Perform additional calibrations.
• If a D2 for pCO
2
, with a drift greater than 4.0 mmHg,
occurs twice in a 4-hour period and no drift occurs for pO
2
,
perform QC analysis.
If the pCO
2
result is out of range, replace the sensor.
• Deproteinize the sample path.
Refer to Deproteinizing the Sample Path‚ page 5-4.
• Check that the sensors are installed in the correct location
and are aligned, the O-rings are in place, and the
spring-loaded latch is closed.
If necessary, remove and install the sensors correctly.
• If the problem persists, replace the sensor.
• If the problem persists, call for technical assistance.