The DEIF AL8-2 alarm device is an alarm monitoring device suitable for industrial and marine power stations, with the following features and functions:

###Product Features
1. * * Multi channel alarm function * *:
-Supports 8 digital alarm inputs and can simultaneously monitor multiple key parameters such as voltage, frequency, temperature, pressure, etc.
-Each input channel can be individually programmed and supports normally open (N/O) or normally closed (N/C) alarm contacts.
2. * * Flexible alarm settings * *:
-Alarm input can be individually delayed (0-40 seconds, with a step of 1 second) to avoid false alarms.
-Provide 3 relay outputs, one of which is used to connect the sound/light alarm, and the other two are programmable to respond to specific alarm inputs.
3. * * Intuitive alarm indication * *:
-Equipped with 8 LED indicator lights (marked as 1-8) for precise display of the status of each alarm input.
-When multiple alarms occur simultaneously, the LED of the first alarm will flash first.
4. * * High reliability and adaptability * *:
-Industrial grade design, suitable for harsh environments, with a working temperature range of -20 ℃ to+70 ℃.
-The protection level is IP54, with dustproof and waterproof functions.
5. Communication and Integration Capability:
-Supports communication interfaces such as Modbus RTU/TCP, CAN bus, etc., and can be seamlessly integrated with control systems such as PLC and DCS.
-Support historical data recording function for easy fault analysis and system optimization.

###Technical parameters
-* * Input voltage * *: DC 24V (optional AC 220V).
-Number of alarm channels: 8 independent channels.
-Alarm Type: Sound Alarm, Light Flash Alarm, Digital Display Alarm.
-Alarm level: Level 3 (Warning, Emergency, Fault).
-* * Communication interface * *: Modbus RTU/TCP, CAN bus.
-Working temperature: -20 ℃ to+70 ℃.
-Protection level: IP54。

###Application scenarios
-Power system: used for monitoring voltage, frequency, and power factor of generator sets and substations.
-Industrial Automation: Integrated into PLC systems, monitoring production line parameters such as temperature, pressure, and liquid level.
-Ship and Ocean Engineering: Real time monitoring applied to ship power systems and propulsion devices.
-* * Data Center * *: Monitor the status of UPS power supply and battery pack.
The DEIF AL8-2 alarm device, with its high reliability and flexible configuration capabilities, is widely used in fields such as power, industrial automation, ships, and marine engineering.