System Setup - Setup Deadbands

System Setup - Setup Deadbands

Deadband This is sometimes called the “hysteresis” band. For cooling , it is the number of degrees the temperature needs to drop from the lower boundary of its current stage before it switches to the lower stage.
Without Deadbands, equipment tends to cycle frequently & constantly change stages when the temperature approaches the set points. When a large value is used, setpoints may not be maintained. Typical values might be 1 to 2 degrees F. For heating it is the number of degrees the temperature needs to rise above the temperature boundary before it switches to a lower heating stage.

RelHum Deadband This is the RH% the humidity must drop below the dehumidification threshold before exiting the dehumidification state. It also is the RH% the humidity must rise above the humidification threshold before exiting the humidification threshold.

BHeat Deadband This is the number of degrees that the bottom heat temperature must rise above the bottom heat temperature setpoint or threshold before the heat valve switches off. Typical values might be 1 degree F or less. Pearl

to get to Setup Deadbands you would do the following:



To setup Locations from Pearl Cloud Platform


    • Related Articles

    • MZone (or Micro Zone) for ON/OFF Equipment Programming

      The Pearl Controller can be used to monitor and control independent heating or cooling “MicroZones”. What is a Micro-Zone? A Micro-Zone is a region or compartment within a greenhouse that has a different temperature setpoint. Typical uses for ...

    • Pearl Control System Manual - V1.18.2 (May 2026)

      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 1.18.2 Manual Attached.

    • PEARL Control System User Manual V.1.17.284

      Attached is the updated Pearl manual.

    • System Setup - System Units

      With the Peal Controller you can set a variety of System Units to best suite your grow needs Temperature Choose either degrees Fahrenheit (ºF) or degrees Centigrade (ºC). Wind Speed Choose either miles per hour (mph) or kilometers per hour (km/h). ...

    • System Setup - Cooling / Heating Stages setup

      The Pearl Controller allows you to have up to 6 cooling and 6 heating stages. To get to location to setup your temp staging you would do the following: On this screen you will select the maximum number of cooling and heating stages that you intend to ...