ASP sterrad NX, Руководство по обслуживанию и устранению неисправностей

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Functional Description
Plasma Power
The plasma power monitoring and control system controls the plasma
power during the two plasma steps of the STERRAD NX Sterilizer
process. The plasma power is monitored and controlled by a plasma
power sensor. This sensor interacts in a control loop with the computer
and plasma power unit to control the process within the specified limits.
Time
Time monitoring and control are performed by the computer and affect
numerous steps in the process. An interval timer measures process step
duration and the computer uses time inputs to control the various devices
in the process sequence.
System Software
STERRAD NX Sterilizer software controls and monitors the sterilizer
through digital and analog signals. When a sterilization cycle is not in
process, the software monitors and controls the sterilizer temperature,
responds to operator touch panel inputs (Select Cycle and Start Cycle),
verifies cassettes upon insertion, controls printer output, and allows the
operator to set the system date and time. When a sterilization cycle is in
process, the software controls and monitors the timing, temperature,
pressure, delivery and vaporization processes, application of plasma
power, printer output, and responds to an operator input of CANCEL (all
other operator inputs are disabled during the cycle). If sterilization
process parameters fall outside allowable ranges, the software will cause
the cycle to cancel, and will control the cancellation process.
Each sterilizer subsystem is part of a control loop in which information
flows as input from one or more sensors to the computer, where it is
processed and triggers an output signal which flows from the computer
to an output device. Through this system of feedback signals (input),
analysis, and response signals (output), the computer controls the entire
sterilization process.
20 STERRAD
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Service Guide