SciCan Statim 5000 - Page 75

Page 75
STAT IM 2000/2000S Service Guide
96-106775 Rev 5.0
3. Troubleshooting Cycle Faults
STATIM 5000/5000S/5000 G4 Service Guide
CF
No.
Unit
type
Software revision
Description of Fault
Probable Cause (or causes) of Fault
S Non
S
1.xx/
2.xx
4.xx 5.xx 6.xx
63
For a 134°C cycle, the theoretical chamber temperature as calculated from the measured
chamber pressure was more than 2°C above the
measured chamber temperature, allowing for
measurement error.
• Calibration imbalance (pressure
transducer or chamber thermocouple)
• Sticking solenoid valve (closed)
• Failed solenoid coil
• Blocked cassette exhaust duct
• Obstructed exhaust tubing (kink) • Poor air removal
64
For a 134°C the theoretical cassette
temperature calculated from the measured
cassette pressure was below the sterilization
temperature, allowing for measurement error
(i.e. Pchm < 304 kPa).
• Calibration imbalance (pressure
transducer or chamber thermocouple)
• Poor air removal during conditioning
(exhaust blockage).
• Not able to generate steam •
Steam leak in the system
65
For a 134°C cycle, the theoretical cassette
temperature calculated from the measured
cassette pressure was more than 4°C above the sterilization temperature, allowing for
measurement error (i.e. Pchm > 341.2 kPa).
• Calibration imbalance (pressure
transducer or chamber thermocouple)
• Sticking solenoid valve (closed) • Failed solenoid coil
• Blocked cassette exhaust duct • Obstructed exhaust tubing (kink) •
Poor air removal
66 - 69
Not used
70
The time maintained by the internal timer of the
processor didn’t match the time maintained by
the external real-time clock.
• Transient electromagnetic disturbance
(problem won’t repeat).
• Damaged microprocessor or crystal
(STATIM Controller Board).
•
Damaged real-time clock or crystal
71
Pressure reading is outside the possible range
• Misconnected, disconnected or
damaged pressure sensor.
• Disconnected or damaged Pressure
Sensor Interface Board (not rev 7.xx).