ASP Sterrad NX
ASP · Model Sterrad NX
Two tiered 30 liter chamber and two cycle options for increased productivity 28-minute Standard cycle for most surgical instruments 38-minute Advanced cycle for single-channel flexible endoscopes Space-efficient STERRAD NX System can be easily cart-mounted and moved where needed Provides terminally sterile, packaged instruments thereby eliminating the need to compromise with liquid biocides.
Key tips
- ·A failed biological indicator means the entire load is not sterile - no exceptions, regardless of how the cycle printout looks.
- ·Door gasket wear is the most common real cause of a failed vacuum/pressure test - check it before deeper diagnostics.
- ·Water quality directly affects steam-cycle validity - don't ignore scale or mineral buildup.
Typical Failure Modes
Compiled for this model from its own documentation and established engineering knowledge for this equipment class - not from a verified service record. Confirm against the manufacturer's service manual.
Cycle cancels / cancellation message
HighSymptoms: Cycle aborts with a system message; load not sterile and must be repackaged and re-run.
Root cause: Load-related issues are the most frequent cause (wet items, overloading, absorbent materials); otherwise a cassette / cartridge fault, a vacuum / leak fault, or a component failure needing service.
Vacuum / leak-rate fault
MediumSymptoms: Chamber will not pull or hold vacuum, leak-test fails.
Root cause: Door seal, a chamber / valve leak, or a vacuum-pump fault.
Sterilant cassette / cartridge / concentration fault
MediumSymptoms: Cassette error, low-concentration or injection fault, cassette collection problems.
Root cause: Expired or faulty cassette / cartridge, or the injection / vaporiser system.
Door / seal fault
MediumSymptoms: Door will not seal, lock or unlock; leak at the door.
Root cause: Worn door gasket or a door-lock / interlock fault.
Printer / display / control fault
LowSymptoms: No cycle printout, blank or frozen display, control errors.
Root cause: Printer, display, or control-board fault.
Serviceable Parts & Consumables
Serviceable items for this model, compiled from its documentation and engineering knowledge for this equipment class. Service class and relative cost are estimates, not manufacturer figures; no part numbers are given. Confirm intervals and pricing against the manufacturer.
Door gasket / seal
Class Periodic replacementRel. cost $$R&R Fairly easy
Vacuum pump / oil (as applicable)
Class Periodic replacementRel. cost $$$R&R Difficult
Chamber / injection valves
Class Major service partRel. cost $$R&R Moderate
Temperature / pressure sensors
Class Major service partRel. cost $$R&R Moderate
Printer / paper
Class Periodic replacementRel. cost $R&R Fairly easy
| Part | Service class | Relative cost | R&R difficulty |
|---|---|---|---|
| Door gasket / seal | Periodic replacement | $$ | Fairly easy |
| Vacuum pump / oil (as applicable) | Periodic replacement | $$$ | Difficult |
| Chamber / injection valves | Major service part | $$ | Moderate |
| Temperature / pressure sensors | Major service part | $$ | Moderate |
| Printer / paper | Periodic replacement | $ | Fairly easy |
Relative cost: $ lowest · $$$$ highest service-part cost for this equipment class. Not a price.
PM Checklist
Preventive-maintenance tasks typical of this equipment class. Perform to the manufacturer's procedure and your facility's policy - this is general reference, not a schedule for this specific unit.
- ·Daily biological and chemical indicator test loads
- ·Door gasket / seal inspection
- ·Steam trap and drain strainer cleaning
- ·Annual full PM and pressure-vessel certification
Error Codes
Extracted directly from this unit's own service manual.
SLOT IS INCORRECT (XX)XX is the slot minimum black calculated for the current cassette pass.
SET SL minB > 30
EXIT CASSETTE TESTThe cassette test automatically exits if there are 10 consecutive successful passes during the adjustment verification phase, otherwise you can terminate the cassette test at any time by pressing CANCEL or CLOSE.
SUCCESSFUL CASSETTE ADJThe cassette test automatically exits after successful adjustment.
WAIT FOR CASSETTE EJECTDisplayed after the cassette test exits automatically after successful adjustment or is terminated.
EXITING (ANA) CASS TESTDisplayed if the cassette test is terminated.
PLEASE REMOVE CASSETTEDisplayed if the cassette does not clear the cassette sensor after disengaging from the cassette motor roller.
OUTPANEL TEST w/STARTDisplayed on the LCD to execute the Outpanel test.
ON/OFF LIGHTS w/STARTDisplayed after pressing START in the Outpanel test, allows toggling lights on and off.
SENSOR TEST w/STARTDisplayed on the LCD to execute the Sensor test.
DOOR TOP SENSOR BLOCKEDDisplayed when the door top sensor is blocked.
DOOR CENTER BLOCKEDDisplayed when the door center sensor is blocked.
DOOR BOTTOM BLOCKEDDisplayed when the door bottom sensor is blocked.
CASSETTE SENSOR BLOCKEDDisplayed when the cassette sensor is blocked.
CHUTE SWITCH ONDisplayed when the chute switch is turned on.
BOX SWITCH ONDisplayed when the box switch is turned on.
TST WHITMN VACSW w/STARTDisplayed if CANCEL is pressed on the box switch display.
VACSW at ATM, DISCONNECTDisplayed if START is pressed in the initial Whitman vacuum switch display and the vacuum switch indicates atmospheric pressure.
RECONNECT VACUUM SWITCHDisplayed if the vacuum switch does not indicate atmospheric pressure, or is disconnected.
TEST SMC VAC SW w/STARTDisplayed if CANCEL is pressed on any of the above Whitman vacuum switch displays.
VACSW AT ATM. SET P1ÆÆÆÆP4Displayed if START is pressed in the initial SMC vacuum switch display and the vacuum switch indicates atmospheric pressure.
Set P1&P3 =70, P2&P4 =15Displayed if the vacuum switch does not indicate atmospheric pressure, or is disconnected.
DOOR TOP SENSOR w/CANCELDisplayed if CANCEL is pressed on any of the above SMC vacuum switch displays.
EXIT w/CLOSEDisplayed to exit the Sensor test, print the Sensor test report, and return to the AutoTest top level menu.
Troubleshooting Approach
A starting sequence for this model, compiled from its documentation and engineering knowledge for this equipment class. Follow the manufacturer's service documentation for the actual procedure.
Symptom: Cycle cancels / cancellation message
- Read the system message - it identifies the source of the problem.
- Because load-related issues (moisture, absorbent materials, overloading, wet items) are the most frequent cause, repackage the load with fresh biological and chemical indicators and restart.
- Confirm the sterilant cassette / cartridge is in date, correctly loaded and not expended; clear any cassette-collection fault.
- If it cancels again, run the leak / vacuum test and inspect the door seal.
- Some faults must be cleared by a manufacturer service technician with a service PIN - escalate a repeatable component fault.
Symptom: Vacuum / leak-rate fault
- Inspect and replace the door gasket / seal.
- Run the automated leak-rate test.
- Check chamber valves, fittings and the injection / vaporiser path for leaks.
- Service or replace the vacuum pump (oil / vanes as applicable).
- Re-run a biological indicator to confirm sterilisation after repair.
Symptom: Sterilant cassette / cartridge / concentration fault
- Confirm the cassette / cartridge is the correct type, in date and correctly inserted.
- Run the cassette test / adjustment routine if the unit provides one.
- Check the cassette-collection bin and the eject mechanism.
- Inspect the injection valve / vaporiser and the concentration monitor.
- Replace a faulty cassette; escalate an injection-system fault to service.
Technical Specs
- Height
- 84.3 cm
- Orientation
- Benchtop
- Weight
- 125 kg
Typical Location
Where this class of equipment is typically deployed - general reference, not this unit's own placement record.
- Central Sterile Supply Department (CSSD)
- OR sterile core
- Satellite reprocessing areas
Documents & Manuals
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