Campbell Scientific KH20 Krypton Hygrometer - Manual (Page 6)

KH20 Krypton Hygrometer
2.3 Physical
Dimensions
Sensor Head: 11.5” x 9” x 1.25” (29 cm x 23 cm x 3 cm)
Electronics Box: 7.5” x 5” x 2” (19 cm x 13 cm x 5 cm)
Rain Shield with Mount: 11.5” x 7” x 2.5” (29 cm x 18 cm x 6.5 cm)
Mounting Pipe: 20” (50 cm)
Carrying Case: 25” x 15” x 7” (64 cm x 38 cm x 18 cm)
Weight
Sensor Head: 3.55 lbs (1.61 kg)
Electronics Box: 1.4 lbs (6.4 kg)
Rain Shield with Mount: 4.75 lbs (2.2 kg)
Mounting Pipe with Nu-rail: 1.0 lbs (0.45 kg)
Carrying Case: 9.45 lbs (4.3 kg)
Shipping: 20.15 lbs (9.2 kg)
Package Includes:
KH20 sensor head with 5’ of cables
Power/Signal cable with 25’ lead length (CSI p/n KH20CBL-L)
Electronics Box
Rain Shield (CSI p/n 14113)
Horizontal Mounting Boom (20 inch 3/4” IPS threaded aluminium pipe)
(CSI p/n 3874)
Nu-rail (3/4” x 3/4”) (CSI p/n 1017)
Allen Wrench (5/32”) (CSI p/n 4697)
3. Installation
3.1 Siting
When installing the KH20 sensor for latent heat flux measurement in an eddy
covariance application, proper siting, sensor height, sensor orientation and
fetch are important. Please refer to Section 2 Installation and Mounting of the
Open Path Eddy Covariance System manual for more discussion on siting.
3.2 Mounting
3.2.1 Parts and Tools Needed for Mounting
You will need the following hardware to mount the KH20 sensor:
1. Tripod (CSI model CM115 standard) or tower
2. CM20x series crossarm (CSI model CM204 standard)
3. 3/4 inch IPS Aluminum Pipe, 12 inches long (CSI p/n 18048)
4. 3/4” x 1” Nu-rail (CSI p/n 1049)
5. Small Phillips and flat-head screw-drivers
6. 1/2 inch wrench
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