Autonics TZN4M-24S is a dual-speed PID digital temperature controller designed for fast stabilization and tight process control in 72 x 72 mm panels. TZN4M-24S supports universal sensing with TC, RTD, and analog inputs, allowing one model to standardize control across equipment. The SSR drive main output interfaces cleanly with solid-state power relays, while TZN4M-24S includes two independent alarm outputs for process events. High display accuracy (+/- 0.3% FS) with a 500 ms sampling cycle helps TZN4M-24S maintain stable temperature profiles in ovens, heaters, and packaging lines.
Features
- Dual-speed PID with auto-tuning (quick start and overshoot control)
- Universal input: TC K/J/E/T/R/S/N/W; RTD Pt100/JPt100; analog 1-5 V / 0-10 V / 4-20 mA
- Main control output: SSR drive (voltage pulse), approx. 12 VDC, 30 mA max
- Dual alarms with selectable modes
- Display accuracy +/- 0.3% FS; 500 ms sampling
- Wide power: 100-240 VAC; front-panel IP65
Technical Specifications
| Model | TZN4M-24S |
|---|---|
| Panel size | DIN 72 x 72 mm; panel cut-out approx. 68 x 68 mm |
| Display method | 4-digit 7-segment LED (PV: red, SV: green) |
| Control method | ON/OFF, P, PI, PD, PIDF, PIDS |
| Sampling cycle | 500 ms |
| Input types | TC: K/J/E/T/R/S/N/W; RTD: Pt100/JPt100 (3-wire); Analog: 1-5 V, 0-10 V, 4-20 mA |
| Display accuracy | +/- 0.3% FS (or 3 °C, whichever is greater) |
| Main control output | SSR drive (voltage pulse), approx. 12 VDC, 30 mA max |
| Option output | Dual alarms (Event 1 + Event 2) |
| Communication | Not equipped (RS-485 available on T option) |
| PV retransmission | Not equipped (available on R/A options) |
| Power supply | 100-240 VAC, 50/60 Hz |
| Front protection | IP65 (panel front) |
| Ambient conditions | -10 to 50 °C operation; -20 to 60 °C storage; 35 to 85% RH (non-condensing) |
| Terminals | Screw terminals (rear) |
| Dimensions (D) | Approx. 100-113 mm depth, panel mount |




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