Campbell CS475, Инструкция по эксплуатации

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CS475, CS476, and CS477 Radar Water Level Sensor
4
4.
After selecting the sensor, click Wiring Diagram to see how the sensor is
to be wired to the datalogger. The wiring diagram can be printed now or
after more sensors are added.
Wire the sensor in this order: white, clear, red, black.
5. Select any other sensors you have, then finish the remaining Short Cut
steps to complete the program. The remaining steps are outlined in
Short
Cut Help , which is accessed by clicking on
Help
|
Contents
|
Programming Steps .
6. If LoggerNet , PC400 , or PC200W is running on your PC, and the PC to
datalogger connection is active, you can click Finish in
Short Cut
and you
will be prompted to send the program just created to the datalogger.
7. If the sensor is connected to the datalogger, as shown in the wiring
diagram in step 4, check the output of the sensor in the datalogger support
software data display to make sure it is making reasonable measurements.
5. Overview
The CS475, CS476, and CS477 emit short microwave pulses and measure the
elapsed time between the emission and return of the pulses. The elapsed time
measurement is used to calculate the distance between the sensor face and the
target (for example, water, grain, slurry). The distance value can be used to
determine depth.
These radar sensors output a digital SDI-12 signal to indicate distance and
stage. This output is acceptable for recording devices with SDI-12 capability
including Campbell Scientific dataloggers.
Three sensor models are available that differ in their measurement range and
accuracy (FIGURE 5-1 ). The CS475 can measure distances up to 65 feet with
an accuracy of ±0.2 inches; the CS476 can measure up to 98 feet with an
accuracy of ±0.1 inches; and the CS477 can measure up to 230 feet with an
accuracy of ±0.6 inches.
CAUTION