PSA21 User Manual, introduces the hardware structure and software configuration method of PSA21 evaluation system.
The Acam PSA21 is a measurement module that supports up to three sensor inputs and provides high‑precision data acquisition. It includes HVDD and LVDD power supplies, a SPI serial interface, and LED indicators for status monitoring.
The manual describes how to connect the module, configure operation modes such as one‑sense, half‑sense, and full‑sense, and outlines the hardware layout, temperature measurement, and safety precautions. This manual is written in Chinese.
| Maximum measurement refresh rate | 8 kHz |
|---|---|
| Supported sensor count | Up to 3 sensors |
| Power supplies | HVDD and LVDD |
| Interface | SPI serial interface (J19) |
| LED indicator | One color LED (D8) |
The PSA21 can measure at a maximum refresh rate of 8 kHz.
The module supports connection of up to three sensors.
It provides both HVDD and LVDD power supplies.