Before procurement teams confirm TK4L-T4RN, they typically review Sub Zero Temperature Controller, Autonics Proximity Sensor and Autonics Tk4S B4Cr to double-check performance ratings, stock availability, and supplier credibility carefully.
Autonics TK4L-T4RN Temperature Controller
The Autonics TK4L-T4RN 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-T4RN |
Autonics TK4L-T4RN 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 | - |
| Weight | Approx. 294g(approx. 198g) |
The Autonics TK4L-T4RN operates on a wide 100β240VAC~ 50/60Hz power supply, ensuring stable performance across diverse factory power conditions. It features a 50ms sampling cycle for fast temperature feedback and precision control. This model supports thermocouple, RTD, and analog inputs, offering engineers high flexibility during integration. Its control algorithm is versatile, enabling ON/OFF, P, PI, PD, and PID modes, which suit both basic heating tasks and fine-tuned applications. With a 4-digit 7-segment LED display and adjustable parameters like proportional band, integral time, and derivative time, the controller allows detailed tuning for each application. For output, the device includes a 250VAC~ 3A relay rated channel, ensuring reliable actuation in most mid-power circuits. Built-in RS485 communication and optional digital inputs support seamless PLC and HMI integration. The front panel is IP65-rated, ensuring dust-tight and splash-resistant operation.
This controller is engineered to perform in tough industrial environments. The double insulation and 2kV dielectric strength between input and power sections protect the internal circuitry from electrical surges. It operates reliably within ambient temperatures of -10 to 50β and humidity levels up to 85% RH. The display accuracy is Β±0.3% F.S. for RTD, thermocouple, and analog inputs, even under fluctuating conditions. At just 294g, the TK4L-T4RN is lightweight and fits easily into compact control panels. Maintenance engineers trust it for its consistency, rapid responsiveness, and excellent compatibility with existing automation systems. The unit's simplified parameter setting ensures faster commissioning, reducing downtime during installation or calibration.
The Autonics TK4L-T4RN Temperature Controller is widely used in plastic molding machines, packaging lines, ovens, HVAC systems, drying chambers, and sterilizers. It is particularly effective in PID loop control applications where thermal accuracy impacts product quality β such as in pharmaceuticals, food processing, and chemical industries. Indian engineers prefer this model for both new installations and retrofits due to its fast setup, reliable performance, and broad sensor support. Itβs also favored in educational labs and engineering institutes for training purposes thanks to its intuitive interface and industrial-grade reliability. For full technical specs or datasheet, visit the official product page here.




