Chapter 4
4-20 mA Signal Configuration / Operation
Airnet II Particle Sensor Operations Manual
Page 4-3
Configuring 4-20 mA Outputs
Configuring the 4-20 mA outputs is the process of setting parameters to define the
collection of the channel data, and to enable the data collection system to correctly
interpret this data.
First, establish communications with the Airnet II particle sensor, and then use software
commands to configure the sensor.
Required Hardware and Software
•
Computer loaded with HyperTerminal, or other terminal emulation software
•
RS-232 configuration cable (provided in your shipment). Wiring for this cable is as
follows:
NOTE:
The following information assumes that the operator has a working
knowledge of terminal emulation software such as HyperTerminal.
Table 4-4
RS-232 Pinouts (RJ-11 Connectors on the Airnet II Particle Sensor)
Pin 1
DSR
Pin 2
Transmit
Pin 3
Receive
Pin 4
RTS
Pin 5
CTS
Pin 6
GND
NOTE:
Windows includes a terminal emulator called HyperTerminal. Other terminal
emulator programs are widely available. Your IT administrator or microcomputer
support person may be able to provide assistance.
