D2 Excessive Drift: Thb - Bayer HealthCare RapidPoint 400 Series Service Manual

Message
D2 Excessive
Drift: tHb
182
Probable Cause and Corrective Action
Service Solutions
Perform service solutions only after all other corrective actions
have been completed. If cartridge replacement does not solve
the problem:
1. If many drift errors occur for all reference sensors check the
door grounding connection. Inspect and tighten the ground wire
connection. Noise can be due to bad grounding of the shield or
the Mux cable.
2. Check that the resistance of the door ground is less than
2 ohms.
3. Use the measurement cartridge simulator to perform the
sensor test.
4. Replace the connector block.
The system turned the tHb parameter off because the CO-ox
module exceeded calibration limits.
1. Perform a full calibration.
2. If the parameter remains out of calibration, replace the
cartridges to make the parameter available for analysis. Refer
to Replacing the Measurement and Wash/Waste Cartridges in
Section 3 in the Rapidpoint 400 Series Operator's Manual if you
want to replace the cartridges.
3. If the message appears again, record the message and call for
technical assistance.
Service Solutions
Perform service solutions only after all other corrective actions
have been completed.
1. Repeat full calibrations.
2. If the error continues, check valve alignment for the
measurement cartridge. Refer to Testing the Measurement
Cartridge Valve Alignment on page 244.
3. If the valve is out of alignment, replaced the cartridge interface
assembly.
4. Replace the measurement cartridge.
Rev. C