Campbell CS650, User Manual

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1
CS650 and CS655 Water Content
Reflectometers
1. Introduction
The CS650 and CS655 are multiparameter smart sensors that use innovative
techniques to monitor soil volumetric water content, bulk electrical conductivity,
and temperature. They output an SDI-12 signal that many of our dataloggers can
measure.
The CS650 has 30 cm length rods, whereas the CS655 has 12 cm length rods.
This manual uses CS650 to reference model numbers CS650 and CS655. Unless
specifically stated otherwise, information in the manual applies equally to both
models.
This manual provides information only for CRBasic dataloggers. It
is also compatible with most of our retired Edlog dataloggers. For
Edlog
datalogger support, see an older manual at
www.campbellsci.com/old-manuals or contact a Campbell Scientific
application engineer for assistance.
2. Cautionary Statements

READ AND UNDERSTAND the Precautions section at the front of this
manual.

Although the CS650 is rugged, it should be handled as precision scientific
instrument.

External RF sources can affect the probe’s operation. Therefore, the probe
should be located away from significant sources of RF such as ac power lines
and motors.
3. Initial Inspection

Upon receipt of the CS650, inspect the packaging and contents for damage.
File damage claims with the shipping company.

The model number and cable length are printed on a label at the connection
end of the cable. Check this information against the shipping documents to
ensure the expected product and cable length are received.
NOTE