ADS7809 is a high-precision AD acquisition chip that uses a single 5V power supply, contains 16-bit successive approximation registers, high sampling precision, and low power consumption. This article introduces the main features and functional structure of ADS7809, and gives an example of how to use ADS7809 in the water mine control equipment system to achieve high-speed data acquisition and control.
This manual explains the installation precautions for the area‑type light curtain, including required safety distances calculated with the formula D = K×T + C. It also describes the wiring of the transmitter and receiver, LED status indicators, and the three selectable alarm flashing modes.
Technical parameters such as power supply voltage, power consumption, detection distance, operating temperature and humidity, IR wavelength range, and output signal types (PNP/NPN) are listed, along with guidance for avoiding interference from reflective surfaces and strong light. This manual is written in Chinese.
| Power supply voltage | 24 VDC |
|---|---|
| Reaction time | < 0.5×光轴数 + 5 ms |
| Detection distance | 0.5‑5 m / 10 m |
| Operating humidity | 15 % – 85 % |
| IR wavelength range | 880 nm – 940 nm |
Connect the red and brown wires of the five‑core cable within five seconds after powering the unit to select one of the three alarm modes; the default is mode 1.