Before procurement teams confirm TK4S-A4RN, 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 TK4S-A4RN Temperature Controller
The Autonics TK4S-A4RN 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 | TK4S-A4RN |
Autonics TK4S-A4RN 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) |
| 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 1/2, 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. 150g(approx. 105g) |
The Autonics TK4S-A4RN Temperature Controller is engineered for industrial temperature regulation with rapid feedback and high configurability. Featuring a sampling cycle of 50ms, it ensures real-time thermal control. It operates on a wide 100–240VAC~ 50/60Hz power supply and supports multiple control methods including ON/OFF, P, PI, PD, and PID, allowing engineers to adapt the unit to specific process requirements. With an adjustable proportional band up to 999.9°C/℉ and integral and derivative times up to 9999 seconds, the controller delivers stable and precise performance. The model accepts a range of input signals, including thermocouples, RTDs, and analog inputs, ensuring seamless integration into varied sensor networks.
The TK4S-A4RN offers robust output flexibility with a relay output (250VAC~ 3A) and optional transmission output (DC4–20mA) for process monitoring and integration with PLC or SCADA systems. The compact build (approx. 150g) is paired with a clear 4-digit 7-segment LED display and an IP65-rated front panel, enabling visibility and durability in harsh industrial settings. Its measurement accuracy remains high across input types, with ±0.3% F.S. at room temperature. Safety is enhanced by double insulation and 2kV dielectric strength between input and power sections. This combination of high-speed processing, flexible control outputs, and rugged design makes it a trusted choice among automation professionals.
The Autonics TK4S-A4RN is commonly installed in applications such as reflow ovens, heat tunnels, packaging systems, environmental chambers, and lab-based heating setups. Maintenance engineers prefer it for its ease of setup and high stability, while plant technicians appreciate its consistent performance under varying loads. For engineering students, it offers a practical understanding of advanced PID control and industrial feedback systems. Its ability to connect with analog signals, relay devices, and monitoring software makes it suitable for both standalone and integrated control systems. For detailed specs and technical documentation, visit the official Autonics TK4S product page.




