Atlantis Duo Controllers

Atlantis Duo Controllers are versatile micro-controller based control boards developed by Atlantis Technologies for industrial water treatment, automation, and monitoring. Each variant supports specific use cases, including flow control, analog retransmission, and configurable IO.

Power

  • 120V 5A Power Required (5A Fuse on PCB)
  • 24V 20W Power Supply

I/O

  • 2 Digital Inputs (Discrete, Pulse, PWM)
  • 2 Analog Inputs (4-20mA, Non-Isolated)
  • 2 Digital Outputs (Opto-Isolated | Discrete, Pulse, PWM)
  • 2 Relay Outputs (SPDT 2A Max)
  • 2 Analog Outputs (4-20mA, Non-Isolated)
A-19781 Flow Controller Interface

A-19781-RA Flow Controller

The A-19781-RA Flow Controller is a purpose-built controller for maintaining stable flow rates while integrating seamlessly with the Pyxis ST-765SS Free Chlorine Probe and FR-300 Plus Brush Cleaning Assembly. This controller automates flow regulation and power cycling of the probe for optimal measurement accuracy, even in challenging water conditions.

Users can configure valve control modes (HAND / OFF / AUTO), set flow and switch setpoints, and initiate automatic PID tuning directly through the intuitive web interface. Real-time display of sensor inputs—including chlorine (AI1), pH (AI2), and flow (DI1)—allows for responsive and efficient system adjustments. A selectable analog retransmit output provides signal forwarding for chlorine, pH, or flow values.

Documents

Features

  • Pyxis Probe Power Delay Automation
  • PID Autotune for Valve Control
  • Chlorine & pH Input Calibration (4-20mA)
  • Selectable Analog Output Retransmission
  • Dual Relay Outputs: Probe Power & Flow Status

Access & Control: Users can connect via Wi-Fi or QR code and configure setpoints, PID values, and flow calibration directly in the onboard web interface.