This document introduces the operation instructions and technical parameters of the TX3 series miniature temperature controller. The product features small size, multiple input options for thermal resistors, multiple control output options, etc., and can be used for temperature measurement display, positional adjustment, or alarm in various industries.
The TX3 series small thermostat manual provides detailed information on panel names, model numbers, technical parameters and keyboard operation. It describes the input types (thermistor Pt100, Cu100 and optional thermocouples), control output options (relay, SSR, optional SCR) and power requirements (85‑260 V AC/DC).
The guide also explains how to set control values, perform auto‑tuning of PID parameters, and includes application examples, wiring diagrams, dimensions and fault troubleshooting procedures for use in chemical, petrochemical, power, pharmaceutical and metallurgical industries. This manual is written in Chinese.
| Input type | Thermistor Pt100, Cu100 (thermocouples optional) |
|---|---|
| Control output options | R: Relay, S: SSR, K: SCR (custom) |
| Power supply | 85–260 V AC/DC |
| Measurement range | -199 °C to 999 °C |
| Accuracy | ±0.5 %F.S |
| Physical dimensions | 3.36 H × 72 W × 62 L mm |
Press and hold the SET key for more than 3 seconds to access the PID parameter adjustment menu.
Hold the AT key for about 3 seconds; when the AT indicator lights, the instrument enters auto‑tuning mode. Release the key after tuning completes.
The device can output via Relay (R), Solid‑State Relay (S), or optional SCR (K) depending on the selected module.
The thermostat operates on an input voltage of 85 V to 260 V AC or DC.