Samwon SD-48M-SRN Multi-Input SSR Temperature Controller

Introduction – Samwon SD-48M-SRN Multi-Input SSR Temperature Controller

The Samwon SD-48M-SRN Multi-Input SSR Temperature Controller is a compact and versatile industrial controller designed for precise temperature regulation across a wide range of processes. Built to support multiple sensor types—thermocouple, RTD, voltage, current, and even humidity sensors—it delivers exceptional flexibility for diverse automation environments. Its solid-state relay (SSR) output enables fast, stable, and accurate control of heating elements, making it ideal for applications requiring high responsiveness.

Engineered with a compact 48×48 mm form factor, the SD-48M-SRN fits easily into tight control panels and supports a standard 45×45 mm panel cutout. With both PID and ON/OFF control methods, it allows fine-tuned process optimization suitable for precise heating and cooling tasks. The device also includes essential industrial safety functions, such as multiple alarm types for sensor failure and heater abnormalities.

The SD-48M-SRN is widely used in industrial automation systems, including plastics, food production, laboratory temperature regulation, and HVAC systems. Its reliable performance and broad input compatibility make it an excellent fit for industries across the UAE and MENA region, where stable temperature control is crucial. Dubai Sensor proudly supports distribution and technical guidance for Samwon controllers in these markets.

Key Features & Benefits

• Multi-input support: Thermocouple, RTD, voltage, current, and humidity sensors
  
• Dual outputs: SSR for fast switching + Relay for auxiliary control
  
• PID and ON/OFF control for accurate temperature regulation
  
• Compact 48×48 mm design suitable for limited panel space
  
• Wide power supply range: 100–240 V AC
  
• Digital display for PV (Process Value) and SV (Set Value)
  
• Equipped with 10 types of built-in alarms for safety
  
• Reliable control ideal for industrial heating and cooling applications
  

Technical Specifications – Samwon SD-48M-SRN Multi-Input SSR Temperature Controller

Applications & Industries

• Plastic and injection molding – mold temperature regulation
  
• Food and pharmaceutical production – oven and process heating control
  
• HVAC systems – industrial heating and cooling management
  
• Industrial machinery – thermal process control
  
• Laboratories and research facilities – precise temperature stabilization
  

This controller is widely used across UAE and MENA industries where stable and accurate temperature control is essential.

Installation, Commissioning & Maintenance

• Install into a 45 × 45 mm panel cutout for secure mounting.
  
• Connect the appropriate sensor type (TC, RTD, DC voltage/current, humidity).
  
• Configure the control mode (PID or ON/OFF) based on process needs.
  
• Use the digital display to verify PV (actual temperature) and SV (setpoint).
  
• Regularly inspect sensor wiring and heater connections to prevent faults.
  
• Utilize built-in alarms for early detection of sensor failure or heater issues.
  

Why Choose Samwon SD-48M-SRN Multi-Input SSR Temperature Controller

The SD-48M-SRN stands out for its multi-input capability and SSR output, delivering high responsiveness and stable performance in demanding thermal processes. Its compact design, wide power input range, and support for PID control make it ideal for professional industrial applications requiring precision.

With reliable operation and flexible configuration options, the SD-48M-SRN offers excellent long-term value. Dubai Sensor supports this model as part of its specialized range of industrial automation solutions.

Ordering Guide

Step-by-Step Ordering Process

1. Confirm the model: SD-48M-SRN
   
2. Verify required input type (TC, RTD, DC voltage/current, humidity)
   
3. Ensure SSR + Relay outputs meet your application needs
   
4. Check panel space for 48×48 mm installation
   
5. Determine power supply compatibility (100–240 V AC)
   

Notes

• The model suffix “N” indicates no communication port.
  
• Verify sensor compatibility before ordering.
  

Official Distribution
Dubai Sensor is the authorized distributor supporting genuine Samwon controllers in the region.

FAQ

What input types does the SD-48M-SRN support?

The SD-48M-SRN supports thermocouples (K, J, R, S, B, E, T, C), RTD PT100Ω, DC voltage (0–10 V, 1–5 V), DC current (4–20 mA), and humidity sensors.

What types of outputs are available on this controller?

It includes one SSR (Solid-State Relay) output for fast heater control and one mechanical relay output for auxiliary devices such as fans or alarms.

Does this model support communication interfaces?

No. The “N” in SD-48M-SRN indicates that it has no communication port.

What control methods are available?

The controller supports both PID and ON/OFF control modes.

What are the installation dimensions for this device?

The unit has dimensions of 48 × 48 × 100 mm and fits into a standard 45 × 45 mm panel cutout.

How many alarm types are included?

The controller is equipped with 10 safety alarm types, including sensor break, heater break, and high/low temperature alarms.

What applications is the SD-48M-SRN suitable for?

It is suitable for plastics and molding, food and pharmaceutical production, HVAC systems, industrial machinery, and laboratory environments.

Data Sheet