Sentek RT6, Hardware Manual

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SENTEK
Page 12

provides serial data communication with
computer or external telemetry devices

measures system voltages during diagnostics
Battery The SLA battery provides power to the logging
facility during night periods (if solar powered) or in
the event of external power failure.
EnviroSCAN Probes
The probe consists of :

a plastic extrusion

datum setting handle

5-wire interface board

20 way ribbon cable running along its length with
connectors for sensors every 100mm
Up to 16 sensors may be connected at desired depths
on any one probe for example sensors placed at 10,
20, 30, 50, 70, 90 and 120 cm. The sensors snap on to
the probe with slots provided every 10 centimeters
allowing the user to specify the sensor depths during
installation or subsequently re-positioning sensors if
required. See Appendix C for examples.
Standard length probes of 0.5 meters are used for
shallow rooted crops or turf while 1, 1.5 or 2 metre
probes are used for tree crops, vines and broadacre
crops such as cotton. In research, waste water
management, environmental and mining applications
probes of longer lengths such as 5, 10 or 15 meters