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10
Input Connections, Analog Sensors (VX12i)
Analog sensors offer a “variable” value such as a temperature, pressure, etc. The device’s analog inputs are 12
bit and offer 4096 steps of resolution (1.22mV or 0.005mA.) Each input has a default range in “Voltage” mode
of 0-5Vdc, or if set with a jumper to a “Current” mode, a 0-20mA range.
Voltage Mode
Standard mode for 0-5Vdc analog sensors or discrete type sensors.
Current Mode
Mode for 0-20mA or 4-20mA type industrial analog sensors.
Note: Jumpers must be installed on the PCB for mA mode.
O8
O7
GND
O6
O4
O2
IN4
IN2
+5V
O5
GND
O3
GND
O1
GND
IN3
GND
IN1
GND
GND
Analog Sensor
(Moisture Probe)
Red (v+)
Bare (v-)
Black (signal)