Dl2E - Delta-T Devices SM200 Quick Start Manual

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
Power V+
Signal
Ground
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.
© 2005 Delta-T Devices Ltd
Colour DL2e terminal
Red
63 NO
White
58+
58-
Shield
and 61-
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