Initial Setup
2-9
Figu re 2-9. Auto Restart function in Apple iOS software.
Using the Auxiliary Sensor Interface
The Auxiliary Sensor Interface attaches to the side of the Analyzer Control Unit and
allows for connection of your choice of sensors, or an alternative power supply.
The Auxiliary Sensor Interface is O-ring sealed, and has connections for up to 4
thermocouples (types E, J, or T, or raw), and 4 general purpose input voltage
channels, any of which can be configured to measure a soil moisture probe.
Sensors can be powered externally or by the LI-8100A with a constant 5 VDC
source. The Auxiliary Sensor Interface also has a 12-28 VDC input (3A minimum)
for use with external power. Note that on Type E, J, or T thermocouples, the red
wire is negative. Note, too, that on the 8100-201 Thermocouple Probe, the red
wire is negative, and the purple wire is positive.
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