PEARL - Soil Moisture Sensor Installation on 5 Input Module

PEARL - Soil Moisture Sensor Installation on 5 Input Module

The Pearl Soil Moisture Sensor would be wired to your 5 Input Module in the following way:
The White Wire of Temperature Probe would go to 3V on bottom of Module
The Red Wire would go to the (+) of the Input you are going to use for the Temp Probe
The Shield Metal Wire would go to the (-) of the Input you are going to use for the Temp Probe
     note:  we recommend using 22 Gauge 2 Twisted Shielded Pair Wire when extended sensor wire runs.

Once wired you would have to map sensor to this module board
(for example let say this Module is board 4, and you have 5 Soil Moisture Sensors you want to have in separate benches in greenhouse for independent  Volumetric Water Content  reporting of an area)
you would map it in sensor mapping:
hit Enter button, go into System Setup, then Setup Inputs, and you would hit enter to highlight the editing field and scroll down to change Soil 1,2,3,4,5 to be In Bd4 Ch1,2,3,4,5 

1000_Series_Soil_Moisture_Sensor_1.png

The key is knowing both when and how much to water!

Maintaining a healthy soil moisture and water balance is essential for producing high quality plants.  

Under-watered plants suffer from nutrient deficiencies, stunting and wilting.

Over-watered plants are more susceptible to disease pressure and less tolerant of dry conditions later on in their life cycle.         

Extreme over-watering will suffocate the plant and lead to root death.

 The Soil Sensor

Measures Volumetric Water Content (VWC) of soil

Capacitance-type sensor responds immediately to changes in soil moisture content for better irrigation decisions

Calibrated for mineral soils or soilless media

Installs easily into 3/4 in (1.9 cm) hole

Install permanently or use to take spot measurements

Can be read with the Pearl Environmental Controller.

You can connect multiple Soil sensors per iGrow Controller depending on the quantity of Input Module Outputs you have available, and you can always add more 5 Input Modules.

    • Related Articles

    • Pearl Control System Manual

      For detailed instructions and important information on the Pearl Control System, please refer to the attached manual. It contains everything you'll need to get started and use the control system effectively. Edit: Version 1.17.18 Manual Attached.
    • PEARL Control System User Manual V.1.17.284

      Attached is the updated Pearl manual.
    • How to Connect a Solar Light Sensor to an Analog Input Module | Link4 Controls

      The Solar Light Sensor needs voltage (+12VDC) to power it and it outputs a current which is passed through a resistor (3.8K R6) for the controller to measure the voltage that corresponds to the light level. There are 3 ways to do this, listed below ...
    • Irrigation Programming - Soil Moisture Irrigation

      This is another smart on-demanding watering equipment type. This mode is used in conjunction with a moisture sensor. It allows you to define a dryness level in the root system of the plants. Once this dryness level is reached, the Pearl will deliver ...
    • PEARL - Solar Light Sensor Installation on 5 Input Module

      The Pearl Solar Light Sensor is a 12vdc Sensor that would be wired to your 5 Input Module in the following way: The Red Wire of Rain Sensor goes to (+) 12vdc The (-) of 12vdc Power Supply Wire goes into (-) of the Input you are going to use for Solar ...