China CA-91D Intelligent RS485 Gas Alarm Controller Factory - Supports 10 Detectors for Combustible Gas Safety
CA-91D Intelligent Bus Type Gas Alarm Controller
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
- Gas concentration status
- Alarm conditions
- System faults
- Operating status
The intuitive interface makes operation and maintenance easier.
RS485 Bus Communication
- 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
Suitable for:
- LPG gas stations
- Gas boiler rooms
- Restaurants and kitchens
- Commercial buildings
- Industrial plants
Multiple Alarm Functions
- 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
Reliable Surge Protection Design
- Power surge protection
- Signal surge protection
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
- 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
Frequently Asked Questions
QHow many gas detectors can the CA-91D controller connect to?
The CA-91D controller supports centralized monitoring for a maximum of 10 gas detectors, making it ideal for multi-point safety detection in commercial and industrial settings.
QWhat is the maximum communication distance of the RS485 bus system?
Thanks to its stable RS485 four-wire bus communication technology, the system supports reliable signal transmission over distances up to 1000 meters.
QWhat kind of alarms does the CA-91D controller trigger during a leak?
The controller triggers audible and visual alarms when gas concentrations exceed limits. It also features fault alarms and programmable relay outputs to activate external safety systems.
QIs the CA-91D controller protected against electrical spikes or surges?
Yes, the unit features a reliable built-in surge protection design that covers both power and signal lines, improving overall system stability and reducing electrical interference.
QCan I monitor the CA-91D gas alarm system remotely?
Yes, the CA-91D is equipped with a wireless remote transmission module, enabling easy remote monitoring and convenient system management from off-site locations.