Instruction manual

CS650 and CS655 Water Content Reflectometers
means of RS-232 Tx/Rx. The A200 USB-to-Serial Module allows RS-232
serial communication between a computer and the CS650 by means of
Campbell Scientific’s Device Configuration Utility (DevConfig) software.
The CS650’s cable can terminate in:
• Pigtails that connect directly to a Campbell Scientific datalogger
(option –PT).
• Connector that attaches to a prewired enclosure (option –PW). Refer
to www.campbellsci.com/prewired-enclosures for more information.
Campbell Scientific also offers the CS650-LC, CS655-LC, and CWS655. The
CS650-LC and CS655-LC include a connector for attaching the sensor to an
ET107 weather station. The CWS655 is a wireless version of our CS655; refer
to the Wireless Sensor Network manual for more information.
6. Specifications
Features:
• Larger sample volume reduces error
• Measurement corrected for effects of soil texture and electrical
conductivity
• Estimates soil-water content for a wide range of mineral soils
• Versatile sensor—measures dielectric permittivity, bulk electrical
conductivity (EC), and soil temperature
• Compatible with Campbell Scientific CRBasic dataloggers: CR6,
CR200(X) series, CR800 series, CR1000, CR3000, and CR5000
TABLE 6-1 compares the size of the CS650 and CS655 reflectometers.
TABLE 6-1. Size Specifications
CS650 CS655
Rods
300 mm long
3.2 mm diameter
32 mm spacing
120 mm long
3.2 mm diameter
32 mm spacing
Probe Head
L 85 mm
W 63 mm
D 18 mm
L 85 mm
W 63 mm
D 18 mm
Probe Weight
280 g 240 g
Cable Weight
35 g m
-1
35 g m
-1
6