The AO3051 intelligent capacitive pressure/differential pressure transducer is carefully designed on the basis of advanced, mature and reliable capacitive sensors, combined with advanced single-chip microcomputer technology and sensor digital conversion technology. The transducer has advanced design principles, a variety of specifications, easy installation and use, etc. It is characterized by high precision, small size, beautiful appearance, stable and reliable operation, low cost and good value for money, so it has a high reputation in the market and is widely used in the petroleum, chemical, metallurgical, electric power, food, paper, medicine, textile and other industries to measure the fluid differential pressure, pressure, absolute pressure, flow, liquid level, density, etc.
The AO3051 series is a smart capacitive pressure and differential pressure transmitter that uses a 16‑bit A/D converter, a microprocessor, and EEPROM storage to provide accurate 4‑20 mA output. It is designed for harsh industrial environments and supports HART communication for configuration and diagnostics.
The manual details installation requirements, wiring, zero‑point adjustment, maintenance procedures, and technical specifications such as measurement range, supply voltage, temperature limits, and accuracy. It also includes guidance on pressure‑tube (differential line) installation to minimize measurement errors. This manual is written in Chinese.
| Measurement range | 0 ~ 42 MPa |
|---|---|
| Output signal | 4 ~ 20 mA |
| Supply voltage | 12 ~ 46 VDC |
| Operating temperature | -20 °C ~ 70 °C |
| Display | 3‑digit LCD, 0 ~ 100 % |
The transmitter operates on a supply voltage between 12 V and 46 V DC.
Zero‑point adjustment is performed via the menu; after the pressure reading stabilizes with no applied pressure, press the zero‑adjust key to correct the offset.
It can be used in environments from –20 °C to +70 °C.
The device outputs a standard 4 ~ 20 mA current signal.