User's Manual

19
Contacting Davis Technical Support
If you have questions about your Leaf/Soil Station, or encounter problems installing
or operating the station, please contact Davis Technical Support.
Note: Please do not return items to the factory for repair without prior authorization.
[phone] – Monday – Friday, 7:00 a.m. – 5:30 p.m. Pacific Time.
[e-mail] – E-mail to Technical Support.
[phone] – For callers outside the USA or Canada.
[phone] – Fax.
www.davisnet.com – Copies of User Manuals are available on the “Support” page.
Watch for FAQs and other updates. Subscribe to the e-newsletter.
[e-mail] – General e-mail.
Specifications
General
Operating Temperature . . . . . . . . . . . . . . . . . . . . . . -40° to +150°F (-40° to +65°C)
Non-operating Temperature . . . . . . . . . . . . . . . . . . . -50° to +158°F (-45° to +70°C)
Current Draw . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 0.14 mA (average), 30 mA
(peak) at 4 to 6 VDC power
Battery . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . CR123A 3-Volt Lithium cell
Battery Life . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8 months without sunlight -
greater than 2 years depending
on solar charging
Solar Panel . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 0.5 Watts
Housing Material . . . . . . . . . . . . . . . . . . . . . . . . . . . UV-resistant PVC plastic
Dimensions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6.25" x 2.25" x 7.875"
(158.75 mm x 57.15 mm x
200 mm)
Weight . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1.08 lb. (.49 kg) (with battery,
without sensors)
Leaf Wetness Sensor (6420)
Sensor Type. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Electrical resistance
Cable Type . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-conductor, 26 AWG
Connector . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Modular connector (RJ-11)
Maximum Cable Length . . . . . . . . . . . . . . . . . . . . . . 200’ (61 m) using 4-conductor
26 AWG cable
Watermark Soil Moisture Sensor (6440)
Sensor Type. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Electrical resistance
Standard Cable . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15’ (4.6 m) Watermark standard
two-wire, stripped and tinned
Maximum Cable Length . . . . . . . . . . . . . . . . . . . . . . 18 AWG: 1000’ (UF wire
recommended)
Multi-Purpose Temperature Probe (6470)
Sensor Type. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Thermistor
Standard Cable . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15’ (4.6m) 22 AWG direct burial
07395.267 Manual Leaf and Soil Moisture Temp Station 2.fm Page 19 Friday, February 4, 2005 5:50 PM