7-2
387366-389 Operating Procedure Alarms
IN CYCLE ALARMS – Non-Aborting (continued)
12 CHAMBER / REFERENCE
DEVIATION (Reference
Probe Only)
Occurs if the chamber and reference compari-
son is more than 2°C during the end of the
sterilize phase.
13 EMERGENCY STOP Occurs if the emergency stop button is
pressed. All outputs turn off.
IN CYCLE ALARMS – Aborting
1 CHAMBER FLOODED Occurs if excess water is sensed in chamber.
WARNING! BURN HAZARD CHAMBER MAY
BE FILLED WITH STEAM CONDENSATE
2 DOOR A/B SWITCH
FAILURE - OUT OF CYCLE
Occurs if door is sensed to be open and door
is sensed to be sealed.
3 DOOR A/B UNSEALED Occurs if door is sensed to be unsealed during
cycle.
4 CHAMBER TEMP. FAILURE Occurs if chamber temperature RTD failed.
5 CHAMBER PRESSURE
FAILURE
Occurs if pressure transducer failed.
6 JACKET TEMP. FAILURE Occurs if jacket temperature RTD failed
7 PRESS / TEMP. FAILURE Occurs if chamber temperature is > 121°C
(250°F) and pressure is < 10 psig (0.76 bar)
or if chamber is > 132°C (270°) and pressure
is < 20 psig (1.38 bar).
8 LOAD TEMP. FAILURE Occurs if load temperature failed.
9 REFERENCE TEMP.
FAILURE
Occurs if reference RTD failed.
10 AIR DETECTOR TEMP.
FAILURE (Air Detector
Probe Only)
Occurs if air detector RTD failed.
11 AIR DETECTOR FAILURE
(Air Detector Probe Only)
Occurs during Prevac cycle when air detector
is selected if air is sensed in chamber.
12 FAILURE FAILURE (Decon
Cycle Only)
Occurs if decontamination RTD failed.
13 AIR COOL PRESSURE LOW
(Air Cool Cycle Only)
Occurs if pressure is less than air cool
pressure alarm during Air Cool phase.
ALARMS 14 through 19 Pertain to Optional Electric Steam Generator
14 TOO LONG TO
DEPRESSURIZE
GENERATOR
Generator takes too long to depressurize.
Either generator pressure switch remained
open or jacket temperature remained above
100°C after one hour.
15 TOO LONG TO CLOSE
GENERATOR DRAIN
Generator drain ball valve failed to open.
Either drain valve did not open or generator
drain ball valve close switch malfunctioned.
Table 7-1. ALARMS
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