IsoAir 310P Aerosol Particle Sensor Operations Manual
Page 6-1
Chapter 6
4-20 mA Input and Solid State Outputs
4-20 mA Input
The 4-20 mA input connection allows for connection of 3 4-20 mA inputs. These
connections are made via an optional electronics board. See the wiring board shown
in
Figure 6-1
The 4-20 mA input board
Solid State Outputs
In addition to the 4-20 mA inputs, the same option board can provide 5 solid state
outputs. These outputs are slaved to the LED status operations.
Only applicable if Option Board 2 is detected. All Digital outputs are shutoff at start-up.
The command "set instrument digital I" will set the instrument into external digital
control mode if I=1 or put the instrument into its default internal digital control mode
if not.
