Samwon SM-940N Temperature Controller

Introduction – Samwon SM-940N Temperature Controller

The Samwon SM-940N Temperature Controller is an advanced industrial control device engineered for precise temperature regulation in demanding applications. Designed with high-accuracy PID and ON/OFF control modes, it ensures stable and reliable temperature management across various process conditions. Its compatibility with multiple sensor types—including thermocouples, RTD PT100, analog current and voltage, and humidity sensors—makes it a versatile solution for diverse industrial environments.

With five independent output channels such as relay control, relay alarms, SSR, and 4–20mA analog transmission, the SM-940N provides exceptional flexibility for controlling heaters, safety alarms, and process signals. Industrial users in sectors like petrochemicals, food processing, automotive manufacturing, and HVAC systems depend on its high sampling speed and stable performance. Customers sourcing automation solutions through Dubai Sensor, especially in the UAE and wider MENA region, benefit from its reliability and installation efficiency.

The SM-940N features advanced programming options with 3 control patterns and 20 programmable segments, allowing users to set complex heating or cooling profiles with ease. Integrated safety alarms—including Sensor Break Alarm (SBA) and Loop Break Alarm (LBA)—further enhance system protection in mission-critical applications. Its compact 96×48 mm panel-mount design simplifies integration into existing control panels.

Key Features & Benefits

• High-precision PID and ON/OFF control for accurate temperature regulation
  
• Supports 5 input categories: thermocouples (K, J, T, R, C(W)), RTD PT100, 4–20mA, 0–10V/1–5V voltage, and humidity sensors
  
• Five output options including control relay, alarm relays, SSR, and 4–20mA analog transmission
  
• Rapid 250 ms sampling speed for responsive control
  
• RS485 communication for integration with industrial automation systems
  
• Advanced 3-pattern, 20-segment programming
  
• Built-in SBA and LBA safety alarms for improved system protection
  
• Compact panel-mount design for easy installation
  

Technical Specifications – Samwon SM-940N Temperature Controller

Applications & Industries

The Samwon SM-940N Temperature Controller is suited for a wide range of industrial applications, including:

• Petrochemical and refinery thermal & cooling processes
  
• Temperature regulation in industrial machinery and production lines
  
• Food and beverage processing and storage temperature control
  
• Heating and cooling systems such as furnaces, chillers, and boilers
  
• Automotive industry temperature regulation for painting and molding systems
  

Its reliability makes it a preferred choice in many UAE and MENA industrial environments via distributors like Dubai Sensor.

Installation, Commissioning & Maintenance

Installation

• Mount the controller into a panel cutout sized W92 × H45 mm
  
• Perform wiring according to the specified electrical diagrams
  
• Ensure proper connection of sensors and analog inputs
  
• Route RS485 communication cables away from high-voltage noise sources
  

Commissioning

• Configure control method (PID or ON/OFF) based on the process requirement
  
• Set up alarm functions, output mapping, and programming segments
  
• Verify stable sensor input and output operation
  

Maintenance

• Avoid contact with AC terminals during operation
  
• Power off the device before servicing or adjustment
  
• Protect the controller from dust, moisture, and oil ingress
  
• Use appropriate load conditions to extend relay lifespan
  

Why Choose the Samwon SM-940N Temperature Controller

The SM-940N delivers precise, stable, and responsive temperature control suitable for demanding industrial environments. Its wide range of input and output options provides flexibility for integration with various heating and cooling systems. Combined with advanced segment programming and robust safety alarms, it ensures consistent performance and enhanced process protection.

Industries rely on the SM-940N for its durability, ease of installation, and compatibility with modern automation networks through RS485 communication. Dubai Sensor supports its availability for customers in the UAE and MENA region, making it a dependable solution for temperature regulation needs.

Ordering Guide

1. Identify the required input type based on the application (thermocouple, RTD, current, voltage, humidity).
   
2. Confirm the necessary output configuration (relay, SSR, analog 4–20 mA).
   
3. Verify panel size compatibility (W96 × H48 mm) with your control cabinet.
   
4. Specify RS485 communication if integration with automation systems is required.
   
5. Purchase through authorized distributors such as Dubai Sensor for assured product authenticity and technical support.

FAQ

Q1: What input types does the Samwon SM-940N Temperature Controller support?
The SM-940N supports thermocouples (K, J, T, R, C(W)), RTD PT100, 4–20mA current input, 0–10V and 1–5V voltage inputs, and a humidity sensor with ±3% accuracy.

Q2: What control methods are available on the SM-940N?
It offers both PID and ON/OFF control methods.

Q3: How many output channels does the SM-940N have?
It features five outputs: a control relay, two alarm relays, an SSR output, and a 4–20mA analog signal output.

Q4: Does the SM-940N support communication with automation systems?
Yes. It includes RS485 communication for integration with industrial automation networks.

Q5: What is the sampling rate of the SM-940N?
The sampling rate is 250 milliseconds.

Q6: What are the installation dimensions for this controller?
Panel cutout size is W92 × H45 mm, and the controller body size is W96 × H48 mm.

Q7: What safety functions are built into the SM-940N?
It includes a Sensor Break Alarm (SBA) and a Loop Break Alarm (LBA) for enhanced system protection.

Q8: What is the operating temperature range?
The allowable ambient operating temperature is 0 to 50°C, with 20–85% ambient humidity.

Q9: Is the SM-940N suitable for heating and cooling applications?
Yes. It is designed for furnaces, boilers, chillers, and other heating/cooling systems.

Q10: Does the SM-940N support multi-segment programming?
Yes. It provides 3 control patterns and 20 programmable segments for advanced temperature profiling.

Data Sheet