Turbidity Sensor (Eco Sensor Iii, Autosensor), B3/10; Table 050-2: Temperature Sensor R30 Resistance Values - Miele G 4205 Technical Information

G 5xxx
Temperature (°F (°C))

Table 050-2: Temperature Sensor R30 Resistance Values

2.15

Turbidity Sensor (ECO Sensor III, Autosensor), B3/10

G 5xxx dishwashers are provided with one of two turbidity sensors,
depending on model. The ECO sensor III measures the turbidity of the water
and, based on this result, the wash blocks, temperatures and running times of
Sensor Wash programs are modified. In addition to this, the Autosensor has
a microprocessor to evaluate the particle measurement.
Principle of operation:
Water circulation and the presence of detergent cause bubbles to be
developed in the suds and measurement technology cannot differentiate
between these bubbles and suspended soil particles. With the turbidity
sensor, a proportion of the suds are directed into a bypass channel which is
wider at one end. This causes the flow rate to reduce and hence the bubbles
in the water to rise. The suspended soil particles in the water can then be
more accurately registered in the following measuring process.
A photoelectric barrier switch (infrared (IR) diode opposite a phototransistor)
acts as a turbidity sensor. Depending on the turbidity (transparency) of the
water, a certain current flows through the phototransistor. This current is
measured and processed by the electronic which then initiates the
appropriate action. If the level of turbidity passes certain thresholds, then,
depending on the soiling detected, subsequent cleaning cycles are modified
Temperature sensor R30 resistance values
32 (0)
41 (5)
50 (10)
59 (15)
68 (20)
77 (25)
86 (30)
95 (35)
104 (40)
113 (45)
122 (50)
131 (55)
140 (60)
149 (65)
158 (70)
167 (75)
176 (80)
185 (85)
194 (90)
199 (93)
203 (95)
87
Technical Information
Resistance (kΩ)
35.979
28.519
22.766
18.281
14.774
11.982
9.787
8.048
6.653
5.523
4.608
3.856
3.243
2.745
2.333
1.990
1.704
1.464
1.262
1.157
1.093