SMS0408 LCD display module is a digital pen segment LCD display (LCD) module that can display 4-digit numbers and time separators, wide voltage working range, low power consumption, and two-wire serial interface connection with MCU single-chip microcomputers. It is widely used in hand-held instruments and intelligent display instruments.
The manual provides safety instructions and installation guidelines for an area‑type light curtain. It describes how to mount the device, maintain the required safety distance, and connect power and signal wiring.
Operational details cover the meaning of the green, yellow and red LEDs, the self‑check procedure, and three selectable alarm modes. Technical parameters such as supply voltage, power consumption, detection distance and environmental limits are listed for reference. This manual is written in Chinese.
| Supply voltage | 24 VDC |
|---|---|
| Detection distance | 0.5‑5 m / 10 m |
| Operating humidity | 15 %–85 % |
| Vibration resistance | 10‑55 Hz, 0.75 mm amplitude |
Connect the red and brown wires of the five‑core cable within five seconds after power‑on to select one of three alarm modes as described in the manual.