Campbell CS475, Instruction Manual

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CS475, CS476, and CS477 Radar Water Level Sensor
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7.3 Wiring to Datalogger
Connections to Campbell Scientific dataloggers are given in TABLE 7-4 .
Connect the wires in the order shown in TABLE 7-4 .
TABLE 7-4. Wire Color, Function, and Datalogger Connection
Wire Color Wire Function Datalogger Connection
White SDI-12 Signal
Control Port 1 or U
configured for SDI-12
2
Clear Shield
G
Red Power
12V
Black Power Ground
G
1 Dedicated SDI-12 port on CR5000.
2 U channels are automatically configured by the measurement instruction.
To use more than one probe per datalogger, you can either connect the different
probes to different SDI-12 compatible ports on the datalogger or change the
SDI-12 addresses of the probes and let them share the same connection. Using
the SDI-12 address minimizes the use of ports on the datalogger and also
allows probes to be connected in a daisy-chain fashion which can minimize
cable runs in some applications.
7.3.1 Built-in Self Test (BIST)
After connecting the sensor to the datalogger’s power terminals, the sensor
performs a BIST (built-in self test) for approximately 80 seconds (factory
default). During this self-check, an internal check of the electronics occurs.
7.4 Datalogger Programming
Short Cut is the best source for up-to-date datalogger programming code.
Programming code is needed when:
• Creating a program for a new datalogger installation
• Adding sensors to an existing datalogger program
If your data acquisition requirements are simple, you can probably create and
maintain a datalogger program exclusively with
Short Cut
. If your data
acquisition needs are more complex, the files that Short Cut creates are a great
source for programming code to start a new program or add to an existing
custom program.
Short Cut cannot edit programs after they are imported and edited
in
CRBasic Editor
.
A Short Cut tutorial is available in Section 4 , QuickStart
(p. 2)
. If you wish to
import
Short Cut
code into
CRBasic Editor
to create or add to a customized
program, follow the procedure in Appendix A , Importing Short Cut Code Into
CAUTION
NOTE