Instruction manual

CS451/CS456 Submersible Pressure Transducer
When using a CR200(X), the SDI12Recorder() instruction has the following
syntax:
SDI12Recorder(Destination,OutString,Multiplier,Offset)
For the other CRBasic dataloggers, the SDI12Recorder() instruction has the
following syntax:
SDI12Recorder(Destination, SDIPort, SDIAddress, “SDICommand”,
Multiplier, Offset)
8. Operation
8.1 Configuration
TABLE 8-1 shows default settings of the CS451/CS456.
TABLE 8-1. Factory Settings
SDI-12 Address 0
RS-232 Baud Rate 9600
Pressure/Level Units psig
Temperature Units Celsius
Communicating with the CS451/CS456 requires the sensor to be either
connected to a PC or to an SDI-12 recorder. The sensor typically connects to a
PC via the A200 sensor to PC interface. Many SDI-12 recorders allow
communication to the sensor via a terminal screen. Configurable settings can
be changed via SDI-12 commands or by using Campbell Scientific’s software
Device Configuration Utility (DevConfig).
8.1.1 PC Connection Using the A200
The A200 or another device is required to connect the CS451/CS456 to a PC.
This allows sensor settings to be changed via DevConfig.
8.1.1.1 Driver Installation
If the A200 has not been previously plugged into your PC and your PC
operating system is not Windows 7, the A200 driver needs to be loaded onto
your PC.
Drivers should be loaded before plugging the A200 into the PC.
The A200 drivers can be downloaded, at no charge, from:
www.campbellsci.com/downloads.
8.1.1.2 A200 Wiring
One end of the A200 has a terminal block while the other end has a type B
female USB port. The terminal block provides 12V, G, TX, and RX terminals
for connecting the sensor (see FIGURE 8-1 and TABLE 8-2). A data cable (pn
17648) ships with the A200. This cable has a USB type-A male connector that
NOTE
13