Micromeritics Elzone II 5390 Operator's Manual page 299

Appendix A
2550- Attempts to acquire the instrument's status timed out.
Cause:
Action A:
Action B:
Action C:
539-42822-01 (Rev A) - Nov 2017
Communication between the analyzer and application have been
unsuccessful for more than one minute.
Exit the application, then restart it.
Ensure that the ethernet cable is securely connected to the computer
and analyzer.
Exit the application. Turn off the analyzer, then turn it back on. Restart
the application. If communication problems persist after all actions
have been taken, contact your Micromeritics representative.
Elzone II 5390 Confirm
A-23