Fault-diagnosis DAC Professional
Fault 18: Sensor "nr" Input "nr"
FAULT 18: Sensor "nr" Input "nr"
Triggered by:
•
The internal check of the sensors for temperature, pressure, or conductivity showed too large deviations. Such
malfunction reports can occur immediately when the appliance is switched on or while a program is running.
Causes / Remedy
Operating fault / Checks by personnel:
For "Fault 18 Sensor: 6 Input 6" (conductivity sensor is faulty), check first that if demineralised or distilled water is
supplied from a container that this has not accidentally been filled with something else.
Appliance fault/ Repair by technical service personnel
Overview of sensors / analog inputs
Sensor
No.
Input
No.
Sensor-
characteristic
Sensor designation/
-function
1
AIN1
PT 1000
Class A
"Temp_chambr_elec“
Temperature sensor
"Steam" for program
control
2 AIN2
PT
1000
Class A
"Temp_Chambr_Dis1/2“
Temperature sensor
"Steam" for
display/record and
monitoring
3 AIN3
Pressure
sensor
0 - 10V at
0 - 4000mbar
"Pressure chamber“
Pressure sensor for
program control Display,
record and monitoring
4 AIN4
PT
1000
Class A
"Temp_preht_chamb“
Temperature sensor for
control of chamber
temperature
6 AIN6
Water
conductivity
sensor
"Conductivity“ display/
monitoring elec.
conductivity
Signal -
Ub+ =24V
Temperature sensor preheating, AIN4
Temperature sensors Steam AIN1/AIN2
Conductivity sensor, AIN6
Pressure sensor AIN 3
09/21/2006
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Servicemanual DAC Professional
Summary of Contents for DAC PROFESSIONAL
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Page 56: ...Sirona DAC Professional Process 09 21 2006 54 61 Servicemanual DAC Professional...
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