In most procurement cycles, TK4S-R2RR is considered with Sub Zero Temperature Controller, Autonics Proximity Sensor and Autonics Tcn4 Series, giving decision-makers confidence that theyโve chosen the most dependable component.
Autonics TK4S-R2RR Temperature Controller
The Autonics TK4S-R2RR Temperature Controller offers ON/OFF, P, PI, PD, PID control method, 24VAC~ 50/60Hz, 24-48VDC 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 | TK4S-R2RR |
Autonics TK4S-R2RR Temperature Controller โ Technical Specifications
| Specification | Value |
|---|---|
| Power supply | 24VAC~ 50/60Hz, 24-48VDC |
| Sampling cycle | 50ms |
| Display method | 4-digit 7-segment LED |
| Control method | ON/OFF, P, PI, PD, PID |
| Proportional band | 0.1 to 999.9โ/โ(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 50โ, storage: -20 to 60โ |
| 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) |
| Protection structure | IP65(front panel) |
| Display accuracy_CT input | ยฑ5% F.S. ยฑ1-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: DPt100ฮฉ, DPt50ฮฉ, JPt100ฮฉ, Cu100ฮฉ, Cu50ฮฉ, Nikel 120ฮฉAnalog: 0-100mV, 0-5V, 1-5V, 0-10V0-20mA, 4-20mA |
| Option output | Alarm 1, Transmission(DC4-20mA) |
| Display accuracy_RTD | โขAt room temperature(23โยฑ5โ):(PV ยฑ0.3% or ยฑ1โ, select the higher one) ยฑ1-digitโขOut of room temperature:(PV ยฑ0.5% or ยฑ2โ, select the higher one) ยฑ1-digit |
| Display accuracy_Thermocouple | โขAt room temperature(23โยฑ5โ):(PV ยฑ0.3% or ยฑ1โ, select the higher one) ยฑ1-digitโขOut of room temperature:(PV ยฑ0.5% or ยฑ2โ, select the higher one) ยฑ1-digit |
| Hysteresis(adjustable sensitivity) | RTD/Thermocouples: 1 to 100โ/โ(0.1 to 100.0โ/โ) variable Analog: 1 to 100-digit |
| Control output 1 | Relay(250VAC~ 3A) |
| Display accuracy_Analog | โขAt room temperature(23โยฑ5โ): ยฑ0.3% F.S. ยฑ1-digitโขOut of range of room temperature: ยฑ0.5โ% F.S. ยฑ1-digit |
| Control output 2 | Relay(250VAC~ 3A) |
| Weight | Approx. 150g(approx. 105g) |
The Autonics TK4S-R2RR Temperature Controller delivers fast, accurate, and customizable thermal control with its 50ms sampling cycle and advanced PID algorithm. Supporting multiple control modesโON/OFF, P, PI, PD, and PIDโit allows precise tuning using adjustable proportional band (0.1 to 999.9%), integral time, and derivative time settings. The controller operates on a flexible 24VAC~ 50/60Hz or 24โ48VDC power supply, offering seamless integration into existing control panels. Its robust input configuration supports thermocouples, RTDs, and analog signals such as 0โ10V and 4โ20mA, making it adaptable for a wide range of sensor types. Engineers benefit from its relay outputs (250VAC~ 3A) for control logic, with optional alarm and transmission outputs to enhance process visibility.
Built with reinforced insulation and certified dielectric strength of 2kV between measuring and power sections, the TK4S-R2RR ensures safety and longevity even in harsh industrial settings. Its compact form factorโjust approx. 150gโfits easily into panel systems, while the 4-digit 7-segment LED display offers easy monitoring. Display accuracy is strong across all supported inputs, with a typical value of ยฑ0.3% F.S. ยฑ1 digit at 23ยฐC, and the IP65-rated front panel provides protection against dust and moisture. The device performs reliably in ambient temperatures of -10 to 50ยฐC and up to 85% RH, making it suitable for continuous operation in factories, machine rooms, and control cabinets.
The TK4S-R2RR is widely used in temperature-sensitive processes such as plastic molding, industrial ovens, environmental chambers, and drying systems. For junior maintenance engineers, its straightforward interface reduces setup complexity. For senior technicians, the model's flexibility and precision make it a preferred choice for high-stakes applications that demand fast response and stable output. Educational institutions also deploy this unit for hands-on training in control systems. With a balance of user-friendly design and advanced control capability, this Autonics Temperature Controller helps improve efficiency, reduce downtime, and maintain product quality across various industries. For full specifications, visit the official Autonics TK4S product page.




