During technical comparisons, TK4L-T4RR appears alongside Sub Zero Temperature Controller, Autonics Proximity Sensor and Autonics Tcn4 Series so engineers assess signal types, ingress protection, and ambient tolerances accurately.
Autonics TK4L-T4RR Temperature Controller
The Autonics TK4L-T4RR 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-T4RR |
Autonics TK4L-T4RR Temperature Controller β 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 999.9β/β(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 50β, storage: -20 to 60β |
| 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 | Β±5% F.S. Β±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: DPt100Ξ©, DPt50Ξ©, JPt100Ξ©, Cu100Ξ©, Cu50Ξ©, Nikel 120Ξ©Analog: 0-100mV, 0-5V, 1-5V, 0-10V0-20mA, 4-20mA |
| Option output | Alarm 1, RS485 comm. |
| Display accuracy_RTD | β’At room temperature(23βΒ±5β):(PV Β±0.3% or Β±1β, select the higher one) Β±1-digitβ’Out of room temperature:(PV Β±0.5% or Β±2β, select the higher one) Β±1-digit |
| Display accuracy_Thermocouple | β’At room temperature(23βΒ±5β):(PV Β±0.3% or Β±1β, select the higher one) Β±1-digitβ’Out of room temperature:(PV Β±0.5% or Β±2β, select the higher one) Β±1-digit |
| Hysteresis(adjustable sensitivity) | RTD/Thermocouples: 1 to 100β/β(0.1 to 100.0β/β) variable Analog: 1 to 100-digit |
| Control output 1 | Relay(250VAC~ 3A) |
| Display accuracy_Analog | β’At room temperature(23βΒ±5β): Β±0.3% F.S. Β±1-digitβ’Out of range of room temperature: Β±0.5β% F.S. Β±1-digit |
| Control output 2 | Relay(250VAC~ 3A) |
| Weight | Approx. 294g(approx. 198g) |
The Autonics TK4L-T4RR operates on a universal 100β240VAC~ 50/60Hz power supply, ensuring dependable performance even in unstable voltage environments. Its 50ms sampling cycle enables faster process corrections, and the 4-digit 7-segment LED display enhances visibility for technicians. This model offers advanced PID control methods β including ON/OFF, P, PI, PD, and full PID β along with a wide proportional band and programmable control periods. It supports various sensor inputs such as thermocouples (K, J, T, R, S, B, N, C), RTDs (Pt100, Cu100, JPt100), and analog inputs like 0β10V or 4β20mA, making it highly adaptable for a range of setups. With relay outputs rated at 250VAC~ 3A and optional RS485 communication, this controller fits effortlessly into complex systems requiring reliable signal transmission and actuation.
Built with double insulation and tested to a 2kV dielectric strength, the TK4L-T4RR meets the rigorous safety standards expected in critical operations. Its IP65-rated front panel guards against dust and splashes, ensuring uninterrupted control even in demanding environments. The device functions reliably in ambient temperatures from -10 to 50β and up to 85% relative humidity, while retaining display accuracy within Β±0.3% F.S. for RTD, thermocouple, and analog measurements. Weighing just 294g, it offers a compact footprint without compromising functionality. The manual reset, adjustable hysteresis, and optional digital inputs give maintenance teams more fine-tuning capability to match changing process requirements.
The TK4L-T4RR PID Temperature Controller is widely used in injection molding machines, food processing ovens, pharmaceutical dryers, and sterilizers, where precise temperature regulation directly impacts product consistency and safety. It is also ideal for chemical plants, textile machines, and HVAC systems where closed-loop control is essential. For Indian industries focused on cost-effective automation, this controller offers a strong balance of performance, safety, and affordability. Whether you're optimizing a legacy system or commissioning a new project, the TK4L-T4RR stands out as a smart, durable solution for industrial temperature control. For a full technical breakdown or datasheet, visit the official product page.




