bad reading from sensors 1122 on 1018 interface kit

[mariusz7]

I have bought Interface Kit 1018 and four current sensors 1122.
Sensors are connected to the board analog inputs.
There is NO current - sensor AD and DC terminals are NOT connected to anything.
The Phidget21 V 2.1.8 software shows Values:
0 Analog In = 3 (0.12612 Amps)
1 Analog In = 1 (0.04204 Amps)
2 Analog In = 1
3 Analog In = 1
Since there is no current flowing, I would expect 0 (zero) to be a shown value.
Why first sensor is so different than others, (shows 3 with flashing 4 when no current is flowing)?