© 2005 Delta-T Devices Ltd
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DL2e
Up to 60 SM200s can be connected to each DL2e with
each sensor connected as a single-ended, powered
sensor.
These details illustrate connection to Channel 58 using
the LAC1 input card configured in 15-channel mode,
and warm-up channel 63:
SM200 wiring Colour
DL2e terminal
Power V+
Red
63 NO
Signal White
58+
Ground Shield
58-
and
61-
Configure the DL2e by choosing one of the
SM200 sensor codes from the LS2Win
sensor library, according to your soil type.
For configuration details see the
DL2e
User Manual
.
Other data loggers
The SM200 should be connected as a single-ended, powered sensor.
Configure the logger input as a voltage sensor, approximately 0 to 1.0 volts
corresponding to ~0 to 60% water content – see next section.
The SM200 has
been optimised for
a 1 second warm-
up period
(minimum period
200ms).
It is recommended
that the sensor is
not powered
continuously.
