Autonics TK4S-12RN Temperature Controller
The Autonics TK4S-12RN 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-12RN |
Autonics TK4S-12RN Temperature Controller – 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 999.9℃/℉(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 |
| 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 introduces the TK4S-12RN High Performance PID Temp Controller, tailored for engineers who require fast, stable, and configurable temperature regulation. It supports multiple input types including thermocouple, RTD, and analog signals, offering flexibility in diverse industrial setups. Powered by a wide range 24–48VDC or 24VAC~ 50/60Hz supply, the controller features a 50ms sampling cycle to ensure responsive adjustments in real time. It offers a clear 4-digit 7-segment LED display and an IP65-rated front panel that withstands challenging shop floor conditions. Control methods include ON/OFF, P, PI, PD, and full PID, with adjustable proportional band, integral time, and derivative time settings to fine-tune performance. Built-in relay output at 250VAC~ 3A and alarm functions make it a complete solution for standalone or integrated systems.
In real-world environments, the TK4S-12RN is trusted for thermal regulation in plastic molding machines, HVAC panels, food-grade ovens, and packaging lines. It delivers the accuracy required for consistent process quality, supporting a wide range of sensor inputs like Pt100, Cu100, and 4–20mA transmitters. Engineers rely on its consistent ±0.3% display accuracy under room conditions, ensuring reliable feedback even in batch-sensitive operations.
Maintenance technicians benefit from easy configuration via the intuitive front panel, while control engineers can leverage its optional CT and DI-1 inputs for integration into advanced logic systems. With its double-insulated 2kV dielectric design and ambient handling from -10°C to 50°C, this controller performs reliably across temperature-critical environments. The compact form factor and light 150g body make it an excellent fit for dense control panels, without compromising safety or control depth.
From system upgrades to OEM machine integration, the Autonics TK4S-12RN delivers the accuracy, adaptability, and durability needed in today’s industrial automation. For in-depth specifications and product support, visit the official Autonics Temperature Controller page on IndMALL.




