Page 4 / 6 Rev. 00 / Jul. 2008 Saeco Int.
04 OPERATING LOGIC XSMALL
Temperature sensor
An NTC is used as a temperature sensor; in
the event of overheating this reduces resistor
consumption.
The electronic system detects the current
boiler temperature from the drop in voltage
and adjusts it accordingly.
Resistor values: see table
4.5. Temperature sensor (adjustment)
Temp. (° C) R nom (kΩ) ΔR (+/- %)
20 61,465 8,6
50 17,599 5,9
75 7,214 4,1
80 6,121 3,7
85 5,213 3,4
90 4,459 3,1
100 3,3 2,5
125 1,653 3,9
150 0,893 5,1
4.4. Single microswitch
The gear motor is powered by a
direct current motor that engages
with the smaller double toothed
wheel using a worm screw. The
unit is mounted on the axle of
the large gear wheel and when a
coffee is requested, it moves from
the home position to the dispens-
ing position, and then back to the
home position again.
- Home position:
1
- Dispensing position: 2
2
1
To Next Page
Loading...
