Intelligent Bus Type Gas Alarm Controller CA-91K with LCD Display RS485 Communication for Industrial and Commercial Gas Leakage Detection System
CA-91K Intelligent Bus Type Gas Alarm Controller
Centralized Combustible Gas Leakage Monitoring and Alarm System
CA-91K is a professional bus type gas alarm controller designed for centralized monitoring of combustible gas detection systems. It adopts LCD display technology, RS485 bus communication, and intelligent alarm management functions to provide reliable gas leakage monitoring solutions for commercial and industrial environments.
The controller supports connection with up to 22 gas detectors, allowing users to monitor multiple detection points through one centralized control unit. With high-performance signal transmission, programmable output functions, and built-in protection design, CA-91K ensures stable operation and improved safety management efficiency.
Main Features
1. Clear LCD Display & Easy Operation
Equipped with a central LCD screen, the controller provides clear real-time information display including:
- Gas concentration status
- Alarm status
- Fault information
- System operation conditions
The intuitive interface makes daily operation and maintenance easier.
2. RS485 Bus Communication Technology
CA-91K adopts RS485 bus communication mode with stable signal transmission performance.
Features:
✔ Four-wire bus signal transmission
✔ Maximum communication distance up to 1000 meters
✔ Suitable for large-area gas monitoring projects
✔ Reliable communication with multiple detectors
3. Supports Maximum 22 Gas Detectors
The controller can connect up to 22 gas detectors, providing centralized monitoring for multiple gas detection points.
It is suitable for:
- Medium and large commercial buildings
- Industrial plants
- Gas stations
- Chemical production areas
4. Multiple Alarm Functions
The system supports:
✔ Gas concentration over-limit alarm
✔ Fault alarm
✔ Audible and visual alarm output
✔ Programmable relay output control
When abnormal gas concentration is detected, the system quickly activates alarm signals to improve safety response efficiency.
5. Built-in Remote Transmission Module
The controller integrates a wireless remote transmission module, allowing convenient remote monitoring and system management.
6. Reliable Surge Protection Design
Internal installation includes:
- Power surge protection device
- Signal surge protection device
Effectively improves equipment stability and protects the system from electrical interference.
Application Areas
Commercial Gas Safety Applications
CA-91K is widely used in:
- LPG stations
- Gas boiler rooms
- Restaurants and commercial kitchens
- Schools
- Shopping malls
- Commercial complexes
- Villas
- Basements
- Other gas consumption areas
Industrial Gas Safety Applications
Suitable for:
- Oil storage facilities
- Pharmaceutical factories
- Chemical enterprises
- Petrochemical industries
- Automotive manufacturing
- Shipbuilding industries
- Industrial gas usage areas