EC-20, EC-10 and EC-5 User’s Manual
2. About the EC-20, EC-10, EC-5
7
(shown in Fig. 3); the white wire is excitation, red is
output, and the bare wire is ground.
Fig. 3: 3-wire cable wiring configuration
Extended cable lengths
Decagon supplies 50-foot (15.25m) and 10-foot (3m)
extension cables for use with the EC-20, EC-10 and EC-
5 with the 3.5 mm connector . You can safely connect
up to 4 of the 50-foot cables without signal attenuation.
For most applications, you will want to seal the connec-
tions from the elements to maintain a good connection
and to prevent corrosion. It is imperative that these
connections are checked before the sensor is buried.
Please see the Decagon web-site (www.decagon.com)
for an application note detailing some preferred meth-
ods for waterproofing these connections
However, if possible, Decagon recommends that you
purchase customized cable lengths if your project
requires longer cable leads. Custom cable lengths may
be requested with a 3.5mm connector or stripped &
tinned end.
Analog out (Red)
Ground (Bare)
Excitation (White)
Sensor cable
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