Campbell Scientific CS451/CS456 Pressure Transducer - Manual (Page 25)

CS451/CS456 Submersible Pressure Transducer
8.1.1.3 Powering the Sensor
The A200 provides power to the sensor when it is connected to a PC’s USB
port. An internal DC/DC converter boosts the 5 Vdc supply from the USB
connection to a 12 Vdc output is required to power the sensor.
8.1.1.4 Determining which COM Port the A200 has been Assigned
When the A200 driver is loaded, the A200 is assigned a COM port number.
This COM port number is needed when using the Device Configuration Utility
or a PC terminal software such as HyperTerminal.
Often, the assigned COM port will be the next port number that is free.
However, if other devices have been installed in the past (some of which may
no longer be plugged in), the A200 may be assigned a higher COM port
number.
To check which COM port has been assigned to the A200, watch for the
appearance of a new COM port in the list of COM ports offered in the software
package (e.g., LoggerNet) before and after the installation, or look in the
Windows Device Manager list under the ports section (access via the control
panel).
8.1.2 Device Configuration Utility (version 2.03 or higher)
The Device Configuration Utility allows you to change the settings of the
CS451/CS456. Device Configuration Utility is shipped on the Campbell
Scientific ResourceDVD included with the CS451/CS456.
To use Device Configuration Utility, the transducer needs to be connected to
the PC via the A200 (see Section 8.1.1, PC Connection Using the A200). After
installing Device Configuration Utility and connecting the transducer to the
PC, select CS451 from the Device Type list on the left column of the screen.
In the PC Serial Port box, select the COM port that was assigned to the A200
(see Section 8.1.1.4, Determining which COM Port the A200 has been
Assigned). Click on the Connect button to enable communication with the
sensor. Once successfully connected, the screen should look like FIGURE 8-2.
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