DAVIS External Temperature Sensor with RJ Connector - Manual (Page 3)

Installing the Sensor
3
Mounting the Sensor
Depending on your use for this sensor, you may install it following the suggestions
below:
• For air temperature, use a cable tie, cable clip, or electrical tape to attach the
cable to a building, post, antenna mast, or other surface (make sure the sensor
itself is not in contact with the building’s surface). Consult the Radiation Shield
manual for instructions on installing the sensor in the Radiation Shield.
• For soil temperature, bury the sensor at a depth suitable for your purposes. Where
the cable runs along the ground, use metal or plastic conduits to protect the cable
from rodents.
• For water temperature, drop the sensor into the water at a depth suitable for your
purposes. If the cable runs along the ground at any point, use metal or plastic
conduits to protect the cable from rodents.
In any case, to prevent fraying or cutting of the sensor cable where it is exposed to
weather, it is important that you secure it so it doesn’t whip about in the wind.
For example, you might want to use cable clips or weather
resistant cable ties to secure the cable. Place clips or ties
approximately every 3 to 5 feet (1
to 1.6 m). Do not use
metal staples or a staple gun to secure cables. Metal
staples — especially when installed with a staple gun —
have a tendency to cut the cables.
Note: When running the sensor cable, try not to tug on the cable in such a way as to loosen
the connections. Also, make sure the sensor cable is not so taut that the connection
may loosen or pull free due to the strain. Many sensor problems occur because cable
connections come loose.
Sensor Output Specifications
Outside Temperature (Air)
Resolution and Units . . . . . . . . . . . . . . . . . . . . . . . .1°F or 1°C (user-selectable)
Range. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .-40° to +150°F (-40° to +65° C)
Sensor Accuracy . . . . . . . . . . . . . . . . . . . . . . . . . . .±1°F (±0.5°C) under 110°F
(43°C), ±2°F (±1°C) over 110°F
(43°C)
Update Interval . . . . . . . . . . . . . . . . . . . . . . . . . . . .10 seconds
Data . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .Instant Reading
Alarms . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .High and Low Thresholds from
Instant Reading