DAVIS 6440 Installation Instructions Download Page 4

Soil Moisture Sensor & Stainless Steel Temperature Probe

Product Numbers: 6440, 6470 

07395.158 Rev. F (7/12/17)

This product complies with the essential protection requirements of the EC EMC Directve 2004/108/EC. 
©2017 Davis Instruments Corp, All rights reserved. Vantage Pro2 is a trademark of Davis Instruemnts Corp, Hayward
CA. Information in this document subject to change without notice. Davis Instruments Quality Management System is
ISO 9001 certified.. 

3465 Diablo Avenue, Hayward, CA 94545-2778 U.S.A.

510-732-9229 • Fax: 510-732-9188

E-mail: [email protected]  •  www.davisnet.com

® 

Contacting Davis Technical Support

For questions about installing or operating your sensor, please contact Davis Technical 
Support. We’ll be glad to help.

Online

www.davisnet.com

See the Weather Support section for copies of user 
manuals, product specifications, application notes, 
software updates, and more. 

E-mail

[email protected]

Telephone

(510) 732-7814 
Monday - Friday, 7:00 a.m. - 5:30 p.m. Pacific Time. 

Summary of Contents for 6440

Page 1: ...centibars of soil water suction with a range from 0 wettest to 200 driest centibars Please refer to your EnviroMonitor Gateway and Node or Wireless Leaf Soil Moisture Temperature Station manual for more information on how to install and use the sensors The manuals can be found in the Support section of www davisnet com http www davisnet com resources weather monitoring support Before Planting the ...

Page 2: ...sensor with a slurry made from the sample soil to get a snug fit in the soil In gravelly soils and with deeper sensors use extra caution to install the sensor without damaging the membrane 2 Always install sensors in the active root system of the crop with a snug fit in the soil 3 Fill the hole with water and push the sensor down into the hole so it bottoms out Tip A length of 1 2 Class 315 PVC pi...

Page 3: ... to water crops until the soil moisture reading is around 30 60 centibars for most soil types For heavy clay the usual range for irrigation is 60 100 centibars Extending Sensor Cables Sensors come with a 15 4 6 m cable If more length is required up to 800 244 m of additional wire can be spliced onto the sensor wire The additional wire must be fully waterproof We recommend using 18 gauge wire with ...

Page 4: ...Davis Instruments Quality Management System is ISO 9001 certified 3465 Diablo Avenue Hayward CA 94545 2778 U S A 510 732 9229 Fax 510 732 9188 E mail info davisnet com www davisnet com Contacting Davis Technical Support For questions about installing or operating your sensor please contact Davis Technical Support We ll be glad to help Online www davisnet com See the Weather Support section for cop...

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