Product Description — SDC40 Digital Indicating Controller
The SDC40 Digital Indicating Controller is a high-performance industrial process controller designed for accurate monitoring and stable control of temperature, pressure, flow, level, and other analog process variables. Built for reliability in demanding industrial environments, the SDC40 combines advanced PID control technology with a clear digital display and flexible configuration, making it suitable for factories, utilities, laboratories, and automation systems.
The controller features a bright, easy-to-read dual display that simultaneously shows the process value (PV) and set value (SV), allowing operators to monitor system conditions at a glance. Its adaptive auto-tuning PID algorithm automatically calculates the optimum control parameters, minimizing overshoot and ensuring precise, stable operation even during load fluctuations. This reduces manual adjustment time and improves production consistency.
Designed with versatility in mind, the SDC40 accepts multiple input signal types, including thermocouples, RTDs, and standard analog signals. This allows it to integrate seamlessly into both new installations and retrofit applications. Multiple control output options such as relay, SSR drive, and analog output enable compatibility with heaters, control valves, and motorized equipment.
For enhanced operational safety and process protection, the controller includes configurable alarm functions that alert operators to abnormal conditions like over-temperature or sensor failure. The front panel keypad provides intuitive programming, while parameter lock protection prevents unauthorized changes.
Its compact panel-mount design saves control cabinet space while maintaining industrial durability. With stable performance, high accuracy, and simple operation, the SDC40 Digital Indicating Controller is an ideal solution for applications such as furnaces, ovens, plastic processing machines, boilers, dryers, HVAC systems, and food processing equipment.
Whether used in manufacturing or process automation, the SDC40 improves control precision, energy efficiency, and overall system reliability — making it a dependable choice for modern industrial control systems.
Technical Specifications
| Parameter | Specification |
|---|---|
| Model | SDC40 Digital Indicating Controller |
| Control Method | PID (Auto-tuning / Manual tuning) |
| Display | Dual 4-digit LED display (PV & SV) |
| Display Accuracy | ±0.5% of full scale ±1 digit |
| Input Types | Thermocouple (K, J, T, E, R, S, B), RTD (Pt100), Linear Analog (4–20 mA / 0–10 V) |
| Sampling Time | Approx. 0.25 – 0.5 sec |
| Control Outputs | Relay output / SSR drive / Analog output (model dependent) |
| Alarm Outputs | 1–2 configurable alarm relays |
| Power Supply | 100–240 VAC, 50/60 Hz (optional 24 V AC/DC models) |
| Operating Temperature | 0 to 50°C |
| Storage Temperature | −20 to 70°C |
| Humidity | 35–85% RH (non-condensing) |
| Mounting | Panel mount |
| Panel Cutout | Approx. 96× 96 mm |
| Protection Rating | Front panel IP65 (with gasket) |
| Communication (Optional) | RS-485 Modbus RTU |
| Parameter Protection | Key lock / password protection |
| Weight | Approx. 180–250 g |
Catalogue Table
| Attribute | Details |
|---|---|
| Product Name | SDC40 Digital Indicating Controller |
| Category | Industrial Temperature & Process Controller |
| Application | Furnace, Oven, Boiler, HVAC, Plastic Machinery, Dryer, Food Processing |
| Control Function | PID Auto-Tuning Digital Controller |
| Input Compatibility | Thermocouple, RTD Pt100, 4-20 mA, 0-10 V |
| Output Type | Relay, SSR Drive, Analog Control Output |
| Display Type | LED Dual Display |
| Mounting Type | Panel Mounted Controller |
| Communication | Optional RS485 Modbus |
| Alarm Function | High / Low / Deviation Alarm |
| Power Requirement | 100-240 VAC |