CA-91D Intelligent RS485 Bus Type Gas Alarm Controller with LCD Display Supports 10 Gas Detectors for Combustible Gas Leakage Detection System
CA-91D Intelligent Bus Type Gas Alarm Controller
RS485 Centralized Gas Leakage Detection and Alarm Control System
CA-91D is a professional bus type gas alarm controller designed for centralized monitoring of combustible gas detection systems. With advanced RS485 communication technology, LCD display, and intelligent alarm management functions, it provides reliable gas leakage monitoring and safety protection solutions for commercial and industrial environments.
The controller supports connection with up to 10 gas detectors, allowing users to monitor multiple gas detection points through one centralized control unit. It is suitable for applications requiring efficient gas safety management, including LPG stations, boiler rooms, restaurants, petrochemical facilities, oil storage areas, and industrial plants.
Main Features
● Central LCD Display & Simple Operation
CA-91D adopts a clear central LCD display, providing real-time monitoring information including:
- Gas concentration status
- Alarm conditions
- System faults
- Operating status
The intuitive interface makes operation and maintenance easier.
● RS485 Bus Communication
The controller uses reliable RS485 bus communication technology.
Main advantages:
✔ Four-wire bus signal transmission
✔ Stable communication performance
✔ Transmission distance up to 1000m
✔ Suitable for medium-size gas monitoring projects
● Supports Maximum 10 Gas Detectors
CA-91D can connect with up to 10 gas detectors, enabling centralized monitoring of multiple areas.
Suitable for:
- LPG gas stations
- Gas boiler rooms
- Restaurants and kitchens
- Commercial buildings
- Industrial plants
● Multiple Alarm Functions
The system supports:
✔ Gas concentration over-limit alarm
✔ Fault alarm
✔ Audible and visual alarm output
✔ Programmable relay output
When abnormal gas concentration occurs, the controller quickly activates alarm signals to improve safety response.
● Wireless Remote Transmission Function
Built-in wireless remote transmission module allows convenient remote monitoring and system management.
● Reliable Surge Protection Design
Internal protection devices include:
- Power surge protection
- Signal surge protection
This design improves equipment stability and reduces the impact of electrical interference.
Application Areas
Commercial Applications
CA-91D is widely used in:
- LPG stations
- Gas boiler rooms
- Restaurants
- Villas
- Basements
- Commercial kitchens
- Other gas consumption areas
Industrial Applications
Suitable for:
- Petrochemical industry
- Oil storage facilities
- Automotive manufacturing
- Shipbuilding industry
- Industrial gas usage sites
Product Advantages
✔ Intelligent combustible gas monitoring solution
✔ Supports up to 10 gas detectors
✔ RS485 long-distance communication up to 1000m
✔ LCD display for easy operation
✔ Sound and light alarm protection
✔ Remote monitoring capability
✔ Built-in surge protection system
✔ Suitable for commercial and industrial safety projects