Maintenance teams planning replacements for TK4S-22RN frequently review Sub Zero Temperature Controller, Autonics Proximity Sensor and Autonics Tcn4 Series to prevent downtime, checking availability and compatibility with existing systems.
Autonics TK4S-22RN Temperature Controller
The Autonics TK4S-22RN 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-22RN |
Autonics TK4S-22RN Temperature Controller β 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 999.9β/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) |
| 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 1/2 |
| 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. 150g(approx. 105g) |
The Autonics TK4S-22RN is a compact and powerful High Performance PID Temp Controller built for modern process control. It supports multiple control algorithms including ON/OFF, P, PI, PD, and PID, enabling engineers to select the optimal logic based on application demands. With a rapid 50ms sampling cycle, the TK4S-22RN ensures precise thermal corrections for fast-moving industrial systems. The unit operates on a flexible 24VAC/24β48VDC supply, making it suitable for diverse electrical environments without external conversion modules.
This controller accepts a broad range of inputs including thermocouples (K, J, T, R, S, etc.), RTDs (Pt100, Cu50, etc.), and analog signals (0β10V, 4β20mA). Engineers can configure control output via a reliable relay output (250VAC 3A), allowing seamless integration with heaters, solenoids, and electromechanical systems. Additional tuning options include proportional band (0.1β999.9%), integral and derivative time (up to 9999 sec), hysteresis settings, and manual reset capability for field calibration. The 4-digit 7-segment LED display offers clear real-time process visibility.
Protection features such as IP65-rated front panel, double insulation, and 2kV dielectric strength ensure reliable operation in dusty or humid factory conditions. Optional inputs like CT and digital (DI-1) expand functionality for monitoring loops or triggering alarms. At just 150g, its light weight and compact profile allow it to fit easily into dense control cabinets or mobile panels. With high accuracy ratings (Β±0.3% F.S. at room temp), the TK4S-22RN is a performance-driven choice for modern industrial control.
For training institutes and engineering students, the clear front-panel display, programming ease, and visual PID tuning make this controller a valuable teaching tool. In retrofit projects or new panel designs, the TK4S-22RN offers long-term reliability, electrical safety, and compatibility with modern automation protocols. For more controller options, visit the Autonics Temperature Controller page or explore the full range of Autonics Sensors and Controllers on IndMALL.




