Samwon SM-490N Temperature Controller

Introduction – Samwon SM-490N Temperature Controller

The Samwon SM-490N Temperature Controller is an advanced industrial control solution engineered for precise, stable, and reliable temperature regulation across a wide range of applications. Designed with PID and ON/OFF control methods, the SM-490N provides high-accuracy performance suitable for both simple and complex thermal processes.

Equipped with multi-input compatibility—including thermocouples (K, J, T, R, C(W)), RTD PT100, current (4–20 mA), and voltage (0–10 V, 1–5 V)—the controller supports versatile integration into modern automation environments. Dubai Sensor supplies the SM-490N to industries across the UAE and MENA region, where dependable temperature control is essential for efficiency and safety.

Its compact panel-mount design (W48 × H96 mm) and user-friendly configuration make installation straightforward, even in space-restricted control systems. The controller’s built-in RS485 communication enables seamless connectivity with industrial automation networks and supervisory control systems.

With robust alarm functions, fast sampling performance (250 ms), and multi-stage programming capabilities, the Samwon SM-490N is suited for demanding environments such as petrochemical plants, food processing facilities, heating and cooling systems, and automotive production lines.

Key Features & Benefits

• High-accuracy PID and ON/OFF temperature control
  
• Supports thermocouple, RTD PT100, 4–20 mA, 0–10 V, and 1–5 V inputs
  
• Multiple outputs: Control Relay, Dual Alarm Relays, SSR, and 4–20 mA analog transmission
  
• Fast 250 ms sampling rate for responsive process control
  
• RS485 communication for easy integration with PLCs and automation systems
  
• 3 pattern programs with up to 20 programmable segments
  
• Built-in safety alarms: Sensor Break (SBA) and Loop Break (LBA)
  
• Compact design for easy panel installation
  
• Wide power input range: 100–240 VAC (50/60 Hz)
  

Technical Specifications – Samwon SM-490N Temperature Controller

Applications & Industries

The Samwon SM-490N is suitable for a wide range of industrial processes where precise temperature regulation is essential:

• Petrochemical & refinery operations
  
• Industrial machinery and automated production lines
  
• Food and beverage processing systems
  
• Heating and cooling systems (furnaces, chillers, boilers)
  
• Automotive manufacturing, including painting and molding processes
  

Suitable for use across the UAE and MENA industrial sectors due to its reliability and multi-sensor compatibility.

Installation, Commissioning & Maintenance

Installation

• Mount the controller in a panel cutout sized W45 × H92 mm.
  
• Follow the wiring diagram for all sensor, current, and voltage input connections.
  
• Ensure proper tightening of terminal screws for stable operation.
  
• Keep wiring separated from high-voltage and motor lines to reduce electromagnetic interference.
  

Commissioning

• Configure the control method (PID or ON/OFF) based on process requirements.
  
• Set temperature ranges according to the connected sensor type.
  
• Verify correct alarm settings (SBA, LBA) before activating the system.
  

Maintenance

• Keep the controller free from dust, moisture, and oil ingress.
  
• Inspect relay outputs regularly—use appropriate loads to extend relay life.
  
• Power off the system before performing tests or adjustments.
  
• Utilize bias compensation in case of detected control loop errors.
  

Why Choose the Samwon SM-490N

The Samwon SM-490N delivers dependable and precise temperature control even in demanding environments. Its combination of fast response time, multi-input flexibility, and advanced safety alarms ensures stable and accurate operation in industrial settings.

Dubai Sensor offers the SM-490N as a high-performance solution for businesses that require long-term reliability, advanced programming options, and compatibility with diverse sensor types—all in a compact and easy-to-install package.

Ordering Guide

Follow these steps to place an order for the Samwon SM-490N:

1. Confirm the required sensor type (thermocouple, RTD, voltage, or current input).
   
2. Identify the necessary output configuration (Relay, SSR, or analog).
   
3. Verify panel cutout size and installation space.
   
4. Ensure compatibility with your power supply (100–240 VAC).
   
5. Specify whether RS485 communication is required for integration.
   

For procurement within the UAE or wider MENA region, Dubai Sensor supplies the Samwon SM-490N as an official distributor and technical support provider.

FAQ

Q1: What sensor types does the Samwon SM-490N support?
The SM-490N supports thermocouples (K, J, T, R, C(W)), RTD PT100, 4–20 mA current input, 0–10 V and 1–5 V voltage inputs, and a humidity sensor with ±3% accuracy.

Q2: What control methods are available on the SM-490N?
It offers both PID control and ON/OFF control, suitable for a wide range of industrial temperature regulation needs.

Q3: How many outputs does the SM-490N provide?
The controller includes five outputs: a control relay, two alarm relays, an SSR output, and a 4–20 mA analog transmission output.

Q4: Does the SM-490N support communication with automation systems?
Yes, it is equipped with RS485 communication for integration with industrial automation and monitoring systems.

Q5: What is the sampling rate of the SM-490N?
The controller features a fast sampling rate of 250 milliseconds for responsive temperature control.

Q6: What is the required panel cutout size for installation?
The device fits in a panel cutout of W45 × H92 mm.

Q7: What are the operating environmental conditions?
It can operate in temperatures from 0 to 50°C and humidity levels from 20 to 85% RH.

Q8: Does the controller include safety alarm functions?
Yes, it includes a Sensor Break Alarm (SBA) and a Loop Break Alarm (LBA) to ensure safe and reliable operation.

Data Sheet