CS659 Water Content Sensor for HydroSense II with 12 cm Rods

Overview

The CS659 is a water content probe used in the Hydrosense II system (not for use with dataloggers). (The CS659 is designed for use with the HS2 but not with the HS2P.) This probe has 12 cm rods; another probe, the CS658, has 20 cm rods. When ordered with the HS2 Hydrosense II Display, the CS659 is option -12. It is also available as a replacement part.


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Detailed Description

The CS659 soil moisture probe has been designed to aid insertion into and removal from hard soils. The probe rods use ferrule nuts to secure the rods to the probe housing. A molded plastic grip connects the probe's cable to its housing.

Specifications

Measurements Made Volumetric water content of porous media (such as soil)
Volumetric Water Content Accuracy 3% typical (solution electrical conductivity < 6.5 dS/m)
Required Equipment HS2
Soil Suitability Suitable for hard soils.
Rods Replaceable
Sensors Not interchangeable
Volumetric Water Content Resolution < 0.05%
Volumetric Water Content Range 0% to 50% VWC
Cable Spiral, 250 cm (98 in.) extended
Cable Length 1.524 m (5 ft) when coiled
Ingress Protection Rating IP68
Rod Diameter 5 mm (0.14 in.)
Rod Length 120 mm (4.7 in.)
Body Dimensions 100 x 92 x 40 mm (3.9 x 3.6 x 1.6 in.)
Weight 450 g (15.9 oz)

Compatibility

The CS659 is used with the Hydrosense II soil content system only. (The CS659 is designed for use with the HS2 but not with the HS2P.) The rods of the CS659 and CS658 are not interchangeable.

Frequently Asked Questions

Number of FAQs related to CS659: 4

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  1. Can the 12 cm rods from a CS620 be used with a CS659?

    Yes. The 12 cm rods (pn 18591 or pn 10184) can be used.

  2. Are the different length rods interchangeable, or are both the CS658 and CS659 needed?

    Because of the thread type used for the two sensors/rods, it is physically impossible to interchange the rods.

    • The 20 cm rods used with the CS658 are not compatible with the CS659.
    • The 12 cm rods used with the CS659 are not compatible with the CS658.

    If measurements are needed for both depths, both the CS658 and CS659 must be used.

  3. How long does it take to get a measurement after inserting the CS658 or CS659 probe into the ground and pressing the Read button?
    3 to 5 s.
  4. Can the rods for the CS658 and the CS659 be replaced?

    Yes.

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