Quest Engineering MPS 3, Troubleshooting Manual

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MPS 3 and MPS 3 ND Troubleshooting Manual – Troubleshooting
4.4.4. System and Internal Error Alarms (Non-Recoverable Alarms)
•
Constant System and/or Internal Error alarms are usually an indication
of more serious problems with the instrument.
•
System and Internal Errors are designed to be displayed in instances
of possible external electrical disturbance such as ESD, EMI and/or
EMC. In addition, the alarm may be presented due to unintentional
electro-static discharge from the user when interacting with the
disposable set.
•
Occasionally, a system will display a one-time System/Internal Error
that can be corrected by following the direction on the screen. Restart
system and select Resume case to retest. Contact Quest Medical
Technical Support for assistance if the problem persists.
4.4.5. Delivery temperature reads more than 5º above water temperature
•
It is likely that the IR temperature sensor, behind the heat exchanger,
has a dirty lens. Clean the lens with water and a soft cloth.
•
If wiping the sensor does not fix the issue, ensure that there is not a
heat source pointed at the heat exchanger or making contact with it.
4.4.6. Delivery/Vent Valve Errors
•
The antegrade, retrograde, or vent valve may have debris or buildup in
the mechanism. Rinse the valve with warm water and actuate the valve
manually several times to clear the debris.
4.4.7. Low/No Water Flow in Water Circuit
•
The water circuit may not be properly primed.
•
Ensure the heater/cooler unit is properly filled with water and
primed per manufacturer recommendations.
•
Check the water lines to ensure they are properly connected to
the correct inlet and outlet ports.
•
Check the water lines to ensure they are not kinked or blocked.
•
Ensure the heater/cooler unit is in the correct mode and able to flow
properly.
4.4.8. Cannot Close Door
•
If the door is opened while the delivery set is primed, blood will fill the
cassette and make it difficult to close the door. To close the door, clamp
the source lines, manually open the vent valve, and depress both
cassette chambers until most of the fluid is evacuated. Release the
vent valve and close the door.
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