PID Controllers

6 Product Groups

PID Controllers - Full-featured

NEX201, NEX205, NEX206

Read More...
PID Controllers - Value Range
PID Controllers - Value Range

NEX301, NEX305, NEX302

Read More...
PID Controllers - Mid-range

NEX611, NEX604, NEX615

Read More...
null
PID Controllers - Economy Range

NEX313, NEX353

Read More...
AHU Controllers
AHU Controllers

Read More...
null
PID Controller, Ethernet and Datalogging

Read More...

Radix Range of PID Controllers

Radix offers a comprehensive range of PID temperature and process controllers designed to suit varying application complexities from basic control to advanced automation.

Our range includes:

  1. Universal input PID controllers supporting a wide range of industrial signals, including: Thermocouples: B, E, J, K, N, R, S, T; RTDs: Pt100 (including variants like Cu53, JPt100); Linear inputs: 0-50 mV, 0-10 V, 4-20 mA. This enables a single controller to handle multiple sensor types without requiring external signal converters
  2. Flexible output configurations including relay, SSR drive, and analog outputs (4-20 mA / 0-10 V) for diverse control applications
  3. Digital inputs enable PID controllers to respond to external signals such as door open detection, remote start/stop, and safety interlocks. They also support functions like alarm acknowledgment, setpoint selection, and run/hold control for enhanced flexibility and safety.
  4. Advanced control versions such as single-loop, dual-loop, heat + cool, and 16-step profile control for complex process requirements
  5. Communication capability via RS485 / Modbus RTU, with Ethernet and Wi-Fi options available in select models for enhanced connectivity and integration.
  6. Radix PID controllers are available in multiple industry-standard DIN panel sizes, as well as in flameproof and weatherproof enclosure options for diverse industrial environments.
  7. Product ranges from economy to full-featured models, enabling selection based on application needs and suitability.

Pricing Range

Radix PID controllers are competitively priced, with models available from economy to full-featured ranges, depending on configuration, input/output requirements, and communication options. For exact pricing and model selection, please contact our sales team.

Key Features of Radix PID Controllers

  1. High Accuracy Control: Ensures precise and stable control with accuracy up to ±0.05% (RTD) and ±0.1% (linear inputs), delivering consistent process performance
  2. Auto-Tuning with Fuzzy Logic: Automatically determines optimal PID parameters, reducing commissioning time and minimising overshoot
  3. Fast Response Time: High-speed sampling rate up to 50 ms (configurable up to 200 ms) enables rapid detection and correction of process disturbances
  4. Dual Display Interface: Simultaneous display of Process Value (PV) and Setpoint (SP) for improved monitoring and operator efficiency
  5. Seamless System Integration: Enables reliable connectivity with PLC, SCADA, and DCS systems for centralised monitoring and control
  6. Compact & Rugged Design: Space-saving panel-mounted design with IP66/NEMA 4X front protection for dependable operation in harsh industrial environments
  7. Versatile Control Configurations: Supports single-loop, dual-loop, and heat + cool control strategies across diverse industrial processes
  8. Engineered for Industrial Reliability: Designed in compliance with relevant IEC standards for safety and EMC, ensuring long-term, stable operation in demanding conditions

Benefits of Using Radix PID Controllers

  1. Improved Process Stability: Minimises fluctuations and oscillations
  2. Higher Product Quality: Ensures consistent output in manufacturing processes
  3. Reduced Energy Consumption: Optimised control reduces waste and inefficiency
  4. Equipment Protection: Prevents overheating, pressure spikes, and system stress
  5. Reduced Manual Intervention: Enables reliable automation and unattended operation
  6. Long-Term Reliability: Designed for continuous industrial use

How Radix PID Controllers Are Used?

Radix’ PID controllers are designed for core industrial process control applications, where precise and stable regulation of critical parameters is essential.

Process Measurement and Control

  1. Temperature control in furnaces, ovens, and heaters
  2. Pressure regulation in process lines and vessels
  3. Flow and level control in industrial systems
  4. Temperature and related process parameter control (where applicable)

Radix PID controllers are engineered to handle temperature, pressure, flow, level, and humidity loops with high accuracy and stability.

Industrial Automation Systems

  1. Integration with PLC/DCS-based control systems via Modbus RTU, BACnet MS/TP, Modbus TCP
  2. Closed-loop control in automated process environments
  3. Multi-loop control for complex industrial processes

These controllers form a critical part of automation architectures, ensuring consistent and repeatable process performance.

OEM Equipment and Control Panels

  1. Machine control panels
  2. Temperature control systems
  3. Custom-built industrial equipment

With support for universal inputs, multiple outputs, and communication protocols, Radix PID controllers are widely used by OEMs for reliable embedded control.

Hazardous and Industrial Environments

Radix PID controllers are designed to operate reliably in demanding industrial conditions, including:

  1. Applications requiring flameproof / explosion-proof solutions
  2. Electrically noisy environments with high interference from industrial equipment
  3. Harsh process conditions involving dust, moisture, and temperature variations

Certain Radix PID controller models are available in flameproof enclosures certified by Petroleum and Explosives Safety Organisation (PESO), making them suitable for hazardous area installations in industries such as oil & gas, chemicals, and pharmaceuticals.

PESO is the Government of India’s regulatory authority responsible for approving equipment used in explosive and hazardous environments, ensuring compliance with strict safety standards for operation in such conditions.

Additionally, Radix PID controllers are designed in line with relevant international standards and are available with CE compliance (model-dependent), supporting safe and reliable deployment in industrial automation systems.

Radix PID controllers are engineered with this philosophy: Deliver predictable, stable, and precise control across real-world operating conditions. Hundreds of thousands of Radix PID controllers also known as Temperature Controllers are in use for over 3 decades, in every possible industry in India. Hundreds of OEMs use these PID Controllers in their equipment. This bears testimony to the reliability of Radix PID Controllers.

PID Controllers & Temperature Controllers | Radix

PID Controllers, Full Featured, PID controllers, Temperature Controllers

Radix manufactures a wide range of PID Controllers, also known as Temperature Controllers. They are used for temperature measurement, control and datalogging.

Frequently Asked Questions

Radix PID controllers offer high accuracy, advanced auto-tuning capability, universal input support, and seamless communication options, ensuring reliable and flexible control across diverse industrial applications.

Backed by over 46 years of engineering expertise, Radix is a trusted global organisation known for delivering high-quality process instrumentation and automation solutions. Our controllers are designed for long-term performance, ease of integration, and dependable operation in demanding industrial environments.

Radix PID controllers are widely used across process-driven industries such as chemical, pharmaceutical, food processing, power, and general manufacturing. They are particularly suited for precise temperature and process control applications where stability, repeatability, and reliability are critical.

Auto-tuning in Radix PID controllers automatically calculates optimal control parameters (P, I, and D), eliminating the need for manual tuning. This ensures faster setup, minimal overshoot, and stable process control, even in dynamic industrial environments.

Radix PID controllers support multiple output types, including relay, SSR drive, and analog outputs (such as 4-20 mA), enabling seamless control of heaters, control valves, and other industrial actuators across diverse applications.

PID controllers play a critical role in industrial automation by ensuring precise and stable control of process variables, even in the presence of disturbances, noise, and system delays. They help systems maintain tight control with minimal deviation, respond quickly to process changes, eliminate steady-state errors, and deliver consistent, repeatable performance.

Because of their reliability and efficiency, PID controllers have become the standard for closed-loop control across industries such as chemical, pharmaceutical, food processing, and manufacturing.

logo

loading