GP1 Data Logger

     ·         2 differential analogue voltages
     ·         2 temperatures
     ·         2 pulse counters
     ·         Smart relay control

The GP1 Data Logger is a complete solution housed in an IP67 enclosure with battery power. The internal memory can hold >600,000 readings - more than enough for one year's operation (typical).

The optional GP-PBA-X50 Precision Bridge Adapter enables a GP1 Data Logger to log up to 2 bridge sensors such as pressure transducers and strain gauges and allows for the logging of up to two water filled tensiometers.

Soil Moisture applications
As well as being a powerful general purpose logger, the GP1 Data Logger is ideal for soil moisture applications:

     ·         2 soil moisture sensors e.g. ThetaProbes or SM300s
     ·         2 temperatures
     ·         2 pulse counters (e.g. rainfall or water meter)
     ·         1 WET Sensor
     ·         Tensiometer input option using GP-PBA-X50

When connected to 1 or 2 ThetaProbes or SM300 Soil Moisture Sensors, the GP1 Data Logger provides simple high accuracy recording of moisture content (as well as rainfall and temperature) – and at much lower cost than has so far been possible.

This compact data logger has two high-resolution differential analog channels (0 to 2.5V) that enable the ThetaProbe’s outstanding accuracy to be achieved over its full operating range.

With the optional GP-PBA-X50 Precision Bridge Adapter, a GP1 Data Logger can be used as a one or two channel tensiometer logger. The bridge adapter is optimised for use with Delta-T Devices' SWT range of water-filled tensiometers but is compatible with many other bridge sensors.

Irrigation control
The GP1 Data Logger can control irrigation directly from the soil moisture (and/or rainfall and/or temperature) or act as a sophisticated interface between these sensors and many types of programmable timer.

Start and Stop control levels can be separately configured and there’s even an option for pulsing the output when it’s desirable to match the water application rate to the soil’s infiltration ability.

In addition, the standard GP1 program now supports:

     ·         WET Sensor interface
     ·         Up to 2 x SM300 Sensors 
     ·         kHz frequency measurement
     ·         Precision 5V sensor excitation

NB: Our GP2 Advanced Data logger and Controller offers even more advanced irrigation control capabilities.

GP1 Data Logger and DL6 Modem Systems

Battery powered GSM Modem communications systems can be used to extend the range of GP1 and DL6 Data Logger applications. Solar recharging is possible and all options can be integrated into GP1 or DL6 networks (see below).

GP1 Data Logger and DL6 Networks
GP1 and DL6 Data Loggers can be connected together in a GP1 cable network. A range of network cables and junction boxes allow GP1 and DL6 users to optimise logger, computer, power supply and modem connections. Up to ten GP1 or DL6 Data Loggers may be connected to each network.

Applications
Soil Science        Plant Physiology           Agronomy                               Climate Research and Meteorology
Horticulture         Agriculture                      Turf and Gardens                  Amenity Landscaping           

Related Products

[1] Accuracy applies over full -20 to 60°C