Autonics TZN4L-24R PID Digital Temperature Controller

Autonics TZN4L-24R PID Digital Temperature Controller is a 1/4 DIN, panel‑mount temperature controller with a 4‑digit LED display and a 100–240 VAC power supply, designed for precise PID process control in heating and cooling applications. It supports ON/OFF, P, PI, PD, PIDF, and PIDS control modes and accepts a wide range of sensor inputs, including thermocouples K/J/E/T/R/S/N/W, RTD Pt100, and analog signals 1–5 V, 0–10 V, and 4–20 mA. With a 500 ms sampling cycle, its relay output is rated up to 250 VAC and 3 A, with optional Event 1/2 outputs for alarms or control signaling. Display accuracy is FS ±0.3% or ±3°C, whichever is higher, and the alarm hysteresis is adjustable from 1 to 100°C. Key tuning parameters include Proportional band 0.0–100.0%, Integral time 0–3600 s, Derivative time 0–3600 s, and Control period 1–120 s, plus ramp settings for 1–99 minutes. The enclosure conforms to DIN W96×H96 mm, enabling straightforward panel installation, and the unit weighs about 474 g. Autonics lists this model as discontinued in the US market.