Sirona DAC PROFESSIONAL, Руководство по обслуживанию

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Fault Diagnosis DAC Professional
Fault 34: Sterilization TU
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Pressure sensor / Analog input AIN 3 measures too high
If the checks show there is no leak (Vacuum test), check through the following on the program print-out:
Pressure reading on print-out corresponds to the control pressures P 6 – P10
Print-out readings from temperature sensor "Temp_chambr_elec“ (AIN1) and from temperature sensor
"Temp_Chamber_Dis1/2“ (AIN2) correspond to one another, but both are too low to produce saturated
stream.
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Exchange pressure sensor
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If there is still a fault, exchange the CPU-board
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"Overheating protection - Steam generator" engages
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Capillary tube level control (digital input DIN 2) is faulty
Control does not open on overheating (shortage of water), water shortage is therefore not recognised and
the capillary tube overheating control switches off.
(see also "Fault 2 Steam generator“)
Observe level regulation in the condensation return pipe, exchange steam generator
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Capillary tube overheating control is faulty.
Control switches too soon, exchange steam generator
Observe level regulation in the condensation return pipe, exchange steam generator
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"Poor control response of steam generator"
Poor heat transmission from the heating coil of the steam generator, particularly temperature fluctuations on
transition from warming-up phase to sterilization phase can take the temperature below the sterilization
temperature for brief periods
Exchange steam generator
09/21/2006 44/61 Servicemanual DAC Professional