Casella CEL Sensus data logger unit - Manual (Page 36)

Jumper position Signal available on
analog channel +A1
Pins 1 - 2 (jumper to left) Barometric pressure
Pins 2 - 3 (jumper to right) Analog input +A1
By using a link to select the signal source for analog channel +A1,
the analog input can be reclaimed for an external signal without the need to
remove the barometric pressure sensor assembly.
The output from the pressure sensor is scaled at 1 mV per mbar.
Therefore in order to scale the data channel to show mbar, a polynomial of
0,1000 needs to be assigned (this scales the default reading of Volts to mbar).
Integrated Sensors
Page 36 of 44
SENSUS Digital Data Logger -
Users Handbook