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Overview
Overview
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The GP2 has 12 differential analogue input channels
, four event/digital
counter channels, and a serial input channel for up to 62 SDI-12 sensors
a single WET sensor.
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Two output relays can be extended to 6 using a relay expansion module.
•
Two banks of terminals provide a 3V precision reference, or unregulated
power for sensors. There is also one 5V and one 12 V power terminal.
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Each sensor can be read at a different rate, from 1 second to >1000 days.
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Multiple recording rates are possible for any combination of measurements.
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Multiple recording types are provided:- average, minimum, maximum, total,
integral, wind-rose, conditional.
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The logger can hold about 2.5 million readings.
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Each relay can control a separate experiment, zone or test protocol, each
based on different threshold settings or conditional logic.
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Simple programs are quickly created on your PC, assisted by the sensor
library and a helpful user interface, and then sent to the logger.
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Sophisticated program scripts can be created without having to learn a
programming language or typing out any commands.
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New measurements can be created mathematically along with complex
control algorithms, using algebraic and trigonometric functions and conditional
logic, with easily created sequences of instructions.
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You can create and manipulate your own “variables” for e.g. disease risk
factor, integral error, days since soil moisture below a threshold, etc.
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Thresholds can be changed while logging, by using program settings.
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A simulator assists the checking and understanding of the behaviour of
logging and control programs. A weather pattern can be repeated, or new one
randomly created. It is particularly useful for irrigation.
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Video tutorials, online help, a sensor library and friendly user interface are
provided for the DeltaLINK 3 software.
Sensors Supported
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All Delta-T sensors. Many third party SDI-12 sensors.
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User defined sensors based on voltage, current, resistance, bridge,
potentiometer, counter, frequency and digital state sensors.
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Any number of calculated measurements.
Tutorials
See
GP2 Intro Series Tutorials
at
http://www.youtube.com/user/DeltaTDevices/videos
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or 24 single-ended analogue channels – but note the limitation on the number of cable glands.
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See also the SDI-12 for GP2 User Manual
