In most procurement cycles, TK4M-A2CR is considered with Sub Zero Temperature Controller, Autonics Proximity Sensor and Autonics Tcn4 Series, giving decision-makers confidence that they’ve chosen the most dependable component.
Autonics TK4M-A2CR Temperature Controller
The Autonics TK4M-A2CR 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 | TK4M-A2CR |
Autonics TK4M-A2CR 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 1/2, 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 | Current(DC0/4-20mA) or SSR drive(11VDC @(=)) [ON/OFF] |
| 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 | Relay(250VAC~ 3A) |
| Weight | Approx. 210g(approx. 140g) |
Engineered to deliver precision and efficiency, the Autonics TK4M-A2CR operates on a dual-range power supply of 24VAC~ 50/60Hz or 24–48VDC, making it suitable for low-voltage panel applications. A 50ms sampling cycle ensures real-time responsiveness, while its control logic supports ON/OFF, P, PI, PD, and PID methods, offering flexibility for both basic heating applications and advanced closed-loop systems. The front-facing 4-digit 7-segment LED display provides easy visibility for process monitoring.
This controller supports a wide range of input types including thermocouples (K, J, T, R, S), RTDs (Pt100Ω, JPt100Ω, Cu100Ω), and analog signals (0–10V, 4–20mA). Dual output options include a current output (0/4–20mA) or SSR drive (11VDC) along with a relay output (250VAC~ 3A), allowing seamless integration with analog modules, solid-state relays, and load circuits. Tuning elements such as proportional band, integral/derivative time, and manual reset are fully configurable. Additional features include adjustable hysteresis, IP65-rated front panel protection, 2kV insulation, and ±0.3% F.S. display accuracy. Optional inputs like CT and digital input (DI-1) support load monitoring, while the transmission output (DC 4–20mA) enables signal retransmission to PLCs or remote displays. The unit performs consistently in ambient temperatures from -10°C to 50°C and fits easily into space-constrained control cabinets with its compact 210g design.
The Autonics TK4M-A2CR offers the right mix of control precision, electrical safety, and system compatibility needed for demanding thermal applications. It supports scalable installations, aids in efficient power usage, and improves long-term process reliability. For detailed specifications and documentation, visit the official Autonics Temperature Controller product page.
