Autonics TK4L-T4SR Temperature Controller
The Autonics TK4L-T4SR Temperature Controller offers ON/OFF, P, PI, PD, PID control method, 100-240VAC~ 50/60Hz power supply, 4-digit 7-segment LED, 50ms. Manufactured by Autonics under the Autonics Temperature Controller category, this model belongs to the TK Series.
| Brand | Autonics |
| Product Type | Temperature Controller |
| Model Number | TK4L-T4SR |
Autonics TK4L-T4SR Temperature Controller – Technical Specifications
| Specification | Value |
|---|---|
| Power supply | 100-240VAC~ 50/60Hz |
| Sampling cycle | 50ms |
| Display method | 4-digit 7-segment LED |
| Control method | ON/OFF, P, PI, PD, PID |
| Proportional band | 0.1 to 999.9℃/℉(0.1 to 999.9%) |
| Integral time | 0 to 9999 sec |
| Derivative time | 0 to 9999 sec |
| Control period | Relay output, SSR drive output: 0.1 to 120.0 sec Current output or SSR drive output selectable: 1.0 to 120.0 sec |
| Manual reset | 0.0 to 100.0% |
| Environment_Ambient temperature | -10 to 50℃, storage: -20 to 60℃ |
| Environment_Ambient humidity | 35 to 85% RH, storage: 35 to 85% RH |
| Insulation type | Double insulation or reinforced insulation(mark: @(INS), dielectric strength between the measuring input part and the power part: 2kV) |
| Option input | CT, Digital(DI-1/2) |
| Protection structure | IP65(front panel) |
| Display accuracy_CT input | ±5% F.S. ±1-digit |
| Input specification | Thermocouple: K(CA), J(IC), E(CR), T(CC), B(PR), R(PR), S(PR), N(NN), C(TT), G(TT), L(IC), U(CC), Platinel IIRTD: DPt100Ω, DPt50Ω, JPt100Ω, Cu100Ω, Cu50Ω, Nikel 120ΩAnalog: 0-100mV, 0-5V, 1-5V, 0-10V0-20mA, 4-20mA |
| Option output | Alarm 1, RS485 comm. |
| Display accuracy_RTD | •At room temperature(23℃±5℃):(PV ±0.3% or ±1℃, select the higher one) ±1-digit•Out of room temperature:(PV ±0.5% or ±2℃, select the higher one) ±1-digit |
| Display accuracy_Thermocouple | •At room temperature(23℃±5℃):(PV ±0.3% or ±1℃, select the higher one) ±1-digit•Out of room temperature:(PV ±0.5% or ±2℃, select the higher one) ±1-digit |
| Hysteresis(adjustable sensitivity) | RTD/Thermocouples: 1 to 100℃/℉(0.1 to 100.0℃/℉) variable Analog: 1 to 100-digit |
| Control output 1 | SSR drive(11VDC @(=)) [ON/OFF, phase, cycle] |
| Display accuracy_Analog | •At room temperature(23℃±5℃): ±0.3% F.S. ±1-digit•Out of range of room temperature: ±0.5℃% F.S. ±1-digit |
| Control output 2 | Relay(250VAC~ 3A) |
| Weight | Approx. 294g(approx. 198g) |
The Autonics TK4L-T4SR operates on a universal 100–240VAC~ 50/60Hz power supply and supports a rapid 50ms sampling cycle, enabling fast detection and correction of temperature fluctuations. Its 4-digit 7-segment LED display offers clear visibility, and the unit supports a wide range of control methods — including ON/OFF, P, PI, PD, and full PID. With a flexible proportional band (0.1 to 999.9℃/℉) and long-range integral and derivative timing (up to 9999 seconds), this controller ensures stable and fine-tuned process control. It accepts a broad variety of input types, such as thermocouples (K, J, R, T, S, B, etc.), RTDs (Pt100, Cu100, JPt100), and analog signals (4–20mA, 0–10V), making it ideal for integration into mixed-sensor systems.
The device offers dual output options — a SSR drive (11VDC) for fast solid-state control and a relay output rated at 250VAC~ 3A — suitable for interfacing with relays, alarms, or actuators. It features double reinforced insulation (2kV dielectric strength), ensuring safe separation between power and signal components. Front panel protection is rated at IP65, making the unit dustproof and splash-resistant, perfect for tough shop-floor conditions. With stable operation in ambient temperatures ranging from -10 to 50℃ and high accuracy (±0.3% F.S.) even across varied environments, the TK4L-T4SR offers consistent performance. Weighing just 294g, it is compact yet powerful enough for advanced control systems. Optional RS485 communication support adds further flexibility for PLC and SCADA integrations.
The Autonics TK4L-T4SR PID Temperature Controller is widely deployed in plastic molding machines, pharmaceutical ovens, food processing systems, packaging lines, drying units, and HVAC automation. Its combination of input compatibility, rugged design, and intelligent control logic makes it a reliable choice for Indian manufacturing plants seeking to reduce downtime and improve thermal stability. Engineers prefer this model when replacing outdated analog units or commissioning smart process lines, thanks to its ease of configuration and integration. Whether you're building a control panel for a production line or retrofitting legacy equipment, the TK4L-T4SR stands out as a cost-effective and accurate temperature control solution. For more details, view the official product page.
