Instruction manual

CS650 and CS655 Water Content Reflectometers
FIGURE 8-1. A200 Sensor-to-PC Interface
A data cable, pn 17648, ships with the A200. This cable has a USB type-A
male connector that attaches to a PC’s USB port, and a type B male connector
that attaches to the A200’s USB port.
TABLE 8-1. CS650 Wiring Code
for RS-232 and A200
Color Function A200 Terminal
Orange RxD Rx
Green TxD Tx
Red Power +12 Vdc
Black Reference G
Clear Shield G
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 that 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 DevConfig. 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, you can monitor the
appearance of a new COM port in the list of COM ports offered in your
software package such as LoggerNet before and after the installation, or look in
the Windows Device Manager list under the ports section (access via the
control panel).
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