ACT2596

The ACT2596 Conductivity Controller, a product by Aranka Instruments LLP, a leading manufacturer and supplier in Ahmedabad, Gujarat, India, is designed to deliver precise and stable conductivity control in industrial applications. The ACT2596 is equipped with an SMPS power supply for protection against voltage fluctuations, a bright OLED display for clear visibility, and dual 5A relay outputs with programmable action for flexible process control. It also features auto/manual temperature compensation, RS-485 Modbus RTU communication, and front-key range selection for quick and user-friendly configuration, making it ideal for reliable conductivity monitoring and automation in water treatment, chemical, and process industries.

Configured with selectable conductivity ranges (0–20 µS, 0–200 µS, 0–2000 µS, 0–20 mS) via front keys, the ACT2596 also offers optional analog 4-20 mA output, sturdy ABS body (flame-proof optional), and compact panel dimensions (96×96×85 mm, cutout 92×92 mm). It finds excellent application in water treatment, chemical processes, pharmaceuticals, agriculture / hydroponics, and industrial dosing systems where stable conductivity control is essential.

  • SMPS Power Supply to protect from Power Fluctuation.
  • Bright OLED LCD Display.
  • 5A 2 relay output.
  • Programmable relay operation.
  • Auto temperature compensation.
  • Temperature Compensation Auto manual Selectable.
  • RS485 Modbus RTU.
  • Range Selectable From Front Key.
Power Supply 100 ~260 VAC @ 50Hz  OR 24VDC
Measuring Range 0-20uS/0-200uS/0-2000uS/0-20mS Selectable From Front Key.
Output 2 nos. Relay 3A 1CO
Analogue output 4-20mA
Communication RS 485 Modbus RTU
Calibration Front Key.
Display Segment.
Temperature Compensation Auto /Manual Front Key Selectable.
Size 96x96x85mm
Panel Cutout 92x92mm
Body ABS, Flame Proof [optional]
Operating Temperature -20 ~55’C
Display OLED LCD.

CE Approved

ISO 9001 : 2025

  • Water Treatment:
    Conductivity control is crucial in water treatment processes to ensure the water meets specific quality standards.
  • Industrial Processes:
    It’s used in various industrial applications, including chemical processing, food and beverage production, and pharmaceutical manufacturing.
  • Agriculture:
    Conductivity controllers are used in irrigation systems to maintain the optimal nutrient balance for crops.
  • Hydroponics:                                                                                                                                                          They ensure proper nutrient levels in hydroponic systems. 
  • Pharmaceuticals: Water For Injection [WFI Plant], DM Water.

Frequently Asked Questions (FAQs)

What is a Conductivity Controller?

A Conductivity Controller is an instrument that measures the electrical conductivity of a liquid and adjusts a process variable (like dosing, dilution, or reagent addition) to maintain the conductivity at a desired setpoint.

What conductivity ranges does ACT2596 support?

The ACT2596 supports configurable ranges: 0–20 µS, 0–200 µS, 0–2000 µS, and 0–20 mS. Selection is done via front key.

What are the outputs available?

It includes 2 relay outputs (5 A each) with programmable behavior and optionally an analog 4–20 mA output for process integration.

Does it support communication?

Yes, it supports RS-485 communication with Modbus RTU protocol for integration with SCADA / PLC systems.

How is calibration and temperature compensation managed?

Calibration and range selection are done via front keys (zero/span); temperature compensation can be set to auto or manual via front key.

In which industries / use cases is ACT2596 best suited?

It is ideal for water treatment control, chemical / pharmaceutical dosing, conductivity stabilization in RO/DM systems, nutrient / fertilizer control in hydroponics, and general process control where conductivity monitoring is critical.