48
Section 7 -
Diagnostics and Troubleshooting
This section contains information for basic system diagnostics and troubleshooting advice. Diagnostics
or repairs outside of the scope of this section should be completed by an authorized service
representative.
Fast Platform temperature decline seen at the end of cooldown causes large thermal gradient between
Platform and stack as the stack temperature lags the Platform. i.e., When Platform first plummets to <10
K, the stack is typically still 100+ K. This may occasionally cause the temperature compensation
algorithm for the encoders to falsely shift.
Recommendation is to give stack time to thermalize and reach temperatures closer to the Platform
before operation. Encoders may need to be zeroed if large shifts occur. Slight shifts in the encoder
readings will occur as temperature compensation is applied to the encoders when the temperature is
changing significantly (more than a few degrees).
