Datasheet

Power consumption
The current used by the EC OEM
™
is not constant. It changes as the conductivity of the
water changes. For example, if the water has a conductivity of 0, then no electricity is
flowing through the probe, and the current draw will only be what it takes to power the
CPU.
However, if the water has a very high conductivity, then the current draw is higher. After
100,000µs, the current consumption no longer increases (this does not mean the readings
are limited to 100,000µs).
Current usage at 3.3V
Min = 10.6 mA
Max = 26 mA
Current
10.6 mA
21.0 mA
0µs
10,000µs
13.3 mA
23.1 mA
1,000µs
20,000µs
15.3 mA
24.5 mA
2,000µs
50,000µs
18.5 mA
25.3 mA
5,000µs
100,000µs
Conductivity
10.6
10,000
20,000
30,000
40,000
50,000
60,000
70,000
80,000
90,000
100,000
0
12.6 14.6 16.6 18.6 20.6 22.6 24.6 26
Current
Conductivity