User manual for the single‑display smart transducer instrument with 4‑20 mA output, RS485 communication and programmable relay limits.
The single‑display smart transducer instrument integrates multiple functions such as high‑precision measurement, fast response, automatic range conversion, and provides DC 4‑20 mA (or 20‑4 mA) current output. It also offers an RS485 communication interface and two programmable relay outputs whose upper and lower limits can be set arbitrarily. The device is widely used in industrial control equipment and product performance testing devices.
The manual describes the model naming based on physical dimensions, key definitions for operation, step‑by‑step procedures for setting measurement ranges, relay thresholds, communication address and baud rate, as well as wiring instructions. Safety notes emphasize reading the manual before use, correct phase connection, and prohibiting unauthorized opening of the instrument. This manual is written in Chinese.
| Current Output | DC 4‑20 mA or 20‑4 mA |
|---|---|
| Communication Interface | RS485 |
| Relay Outputs | Two programmable relays with adjustable upper and lower limits |
| Physical Dimensions | 79X43X25mm, 48X48X85mm, 96X48X85mm, 72X72X85mm, 80X80X85mm, 96X96X85mm, 120X120X85mm, 160X80X85mm, 120X60X85mm |
The instrument can output DC 4‑20 mA or 20‑4 mA current signals, and a voltage output can be obtained by adding 250 Ω or 500 Ω resistors for 1‑5 V, 0‑5 V, or 0‑10 V ranges.