Autonics TK4W-R4RN Temperature Controller
The Autonics TK4W-R4RN 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 | TK4W-R4RN |
Autonics TK4W-R4RN 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, Transmission(DC4-20mA) |
| 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 | Relay(250VAC~ 3A) |
| 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 | - |
| Weight | Approx. 211g(approx. 141g) |
The TK4W-R4RN delivers fast and precise thermal control with a sampling cycle of 50ms, enabling real-time response in critical process systems. It supports a broad power supply range of 100–240VAC~ 50/60Hz, ensuring compatibility across industrial standards. This model allows for versatile control strategies with selectable ON/OFF, P, PI, PD, and PID control methods. Its sensor input options include thermocouples, RTDs, and analog inputs like 0–10V, 0–100mV, and 4–20mA, with high display accuracy of ±0.3% F.S. ±1-digit under standard ambient conditions. The device features a clear 4-digit 7-segment LED display and offers a robust relay output (250VAC~ 3A) for reliable control of connected equipment. With IP65 front panel protection and double insulation, it is engineered for durability and safety in harsh environments.
This model includes precise tuning capabilities for proportional band (0.1–999.9°C), integral time, and derivative time, giving engineers full control over process responsiveness. The controller supports manual reset, adjustable hysteresis, and offers optional inputs like CT and digital input (DI1/DI2) for enhanced monitoring. An additional transmission output (DC4–20mA) allows seamless integration with PLCs, SCADA, or panel meters. The unit performs reliably across a wide ambient temperature range of -10°C to 50°C and relative humidity from 35% to 85%. Its compact and lightweight design (approx. 211g) ensures easy installation in space-constrained panels. High dielectric strength (2kV between power and input terminals) enhances insulation and safety for long-term industrial use.
The Autonics TK4W-R4RN Temperature Controller is widely used in furnaces, plastic processing equipment, HVAC systems, packaging machinery, and test chambers that require consistent thermal control. Maintenance engineers value its plug-and-play setup and high reliability in daily operations. System integrators appreciate the flexible I/O and real-time accuracy it brings to automation processes. Even junior technicians and engineering students can easily navigate its interface and use it for learning PID principles. For more details and official documentation, visit the Autonics official product page.




