Hanwei Smart Gas
Home / KB500 Gas Detection Controller
KB500 Gas Detection Controller
Gas detection controller with two PBUS loops, wireless detector input options, an English menu and RS485/Modbus integration for compatible detector networks.

Gas Detection & Alarm Control Systems
Product selection can be reviewed by installation environment, gas type and target-market requirements.
Answer Summary
Hanwei Smart Gas provides the KB500 Gas Detection Controller for industrial and commercial sites requiring centralized gas alarm handling. Two PBUS loops connect compatible detectors, with wireless detector input available by configuration. An English menu, color LCD and status indicators help operators review local conditions; relay outputs and RS485/Modbus support coordinated response and monitoring-system integration. KB500 is a safe-indoor-area controller, not a gas detector or inline pipeline instrument. Detector compatibility, wireless coverage, loop capacity, relay loads, installation design and certification coverage should be confirmed for the selected configuration and target market.
Product Overview
KB500 brings compatible bus or wireless detector signals into a central alarm panel. Its two PBUS loops, color display, local audible and visual alarms, and relay outputs suit multi-point industrial or commercial monitoring. Wireless detector input depends on the selected controller and detector configuration and site communication conditions. Two RS485 outputs support Modbus integration with an upper-level system. Loop loading, wireless coverage and cascading limits must be checked before system design. Install the controller in a safe indoor area and select field detectors for the actual gas and installation zone.
Product category
Gas Detection & Alarm Control Systems
Small commercial premises, commercial public spaces, utility rooms, gas-use facilities and multi-point combustible gas detection control projects.
Wireless detector input options, subject to controller and detector compatibility and site coverage review
4.3-inch color LCD, status indicators and English menu
Three active outputs and three dry-contact relays for compatible response devices
Two RS485 outputs supporting Modbus integration
Controller cascading and expansion options, subject to model and system design confirmation
Application Fit & Installation Boundary
Select products for the installation environment, gas type and system role.
Application fit
KB500 fits gas detection systems requiring compatible detector inputs, centralized alarm handling, relay output and monitoring-system records, with configuration confirmed for the project.
Installation context
Wall-mounted installation in a safe indoor area such as a control room, duty room or monitoring center. Confirm the mounting, wiring and power arrangement for the selected model.
Selection boundary
KB500 is a controller, not a gas detector or explosion-proof field device. Confirm detector protocol, wireless configuration and site coverage, loop capacity, relay loads, installation design and certification coverage for the selected configuration and target market.
Typical Applications
Common gas safety scenarios where this product category can support monitoring, alarm verification or response workflows.
Small restaurants and small commercial premises gas safety monitoring
Shopping mall, underground corridor and public commercial space gas alarm control
Industrial fixed detector systems that need centralized alarm handling
Multi-point detector input and linkage output projects
Monitoring-system upload and alarm record workflows
Product Selection Notes
Specifications to be confirmed by product model and target market.
| Device role | Gas detection controller / alarm control panel. |
|---|---|
| Detector input | 2 PBUS loops; protection current <=2.5A. Confirm compatible detectors and loop loading before design. |
| Bus capacity configuration | A two-channel bus configuration supports up to 50 detectors per channel, 100 locally, and 300 in total including the cascaded detector allocation. Confirm the matching controller version, cascade topology, detector load and cable design. These figures do not specify wireless capacity. |
| Wireless detector input | Wireless detector connections are available by configuration. Confirm the controller and detector models, wireless protocol, point capacity and site coverage; no fixed coverage distance is assumed. |
| Display | 4.3-inch color LCD and status LEDs; English menu. |
| Working temperature | 0-40°C |
| Dimensions | 370 x 246 x 90 mm (without mounting bracket) |
| Data upload | 2 RS485 outputs supporting Modbus. Confirm data mapping and integration scope. |
| Upload expansion | A third upload connection with customized Ethernet is available for an appropriate configuration; confirm the hardware and integration scope before ordering. |
| Output / linkage | 3 active outputs and 3 dry-contact relays; relay capacity <=4A. Verify connected loads and wiring. |
| Power supply | AC220V +/-33V, 50Hz +/-5Hz; backup DC24V +/-3V rechargeable lead-acid battery. |
| Consumption / detector supply | Controller consumption <=20W; detector supply DC24V +/-6V. |
| Ingress protection | IP54; retain safe indoor installation requirements. |
| Installation | Indoor safe-area wall-mounted controller installation; not for hazardous-zone field mounting. |
| Certification | Certification availability varies by product and target market. Contact us for confirmed specifications. |
How It Fits Into a Project
A product category can be selected as part of a field-to-platform safety workflow instead of as an isolated device purchase.
Why Hanwei
Hanwei Smart Gas can support product selection within wider gas safety monitoring and local partner cooperation discussions.
Related Products
Adjacent product categories for combined gas safety projects.
Solution Mapping
Associated solution paths for buyer evaluation and pilot planning.
Related Knowledge
Read related technical guides and application insights.
Certification availability varies by product and target market. Contact us for confirmed specifications.
FAQ
Common questions for early product selection and project discussion.
Does KB500 detect gas directly?
No. KB500 is a gas detection controller. Gas detection depends on connected gas detectors, while KB500 handles controller-level alarm judgement, display, output and upload workflows.
Where should KB500 be installed?
KB500 is intended for wall-mounted installation in a safe indoor area such as a control room, duty room or monitoring center. It is not an explosion-proof field device and is not intended for hazardous zones, outdoor rain exposure or installation directly beside a gas pipeline. Confirm the site and installation arrangement before use.
Can KB500 link with fans or shut-off valves?
Relay linkage is subject to the connected fan, shut-off valve or warning device being compatible with the selected controller output. Confirm the device models, wiring and project design before use.
Can KB500 receive signals from wireless detectors?
Yes, wireless detector input is available for compatible configurations. Confirm the controller and detector models, wireless protocol, point capacity and site communication conditions before selection. Wireless coverage depends on the equipment and installation environment. Detector input is separate from the RS485/Modbus connection to an upper monitoring system.
Can KB500 upload data to a monitoring platform?
RS485 / MODBUS upload is an integration option. Confirm model support, monitoring-system compatibility, data mapping and the project integration scope before use.
Are certifications available?
Certification availability varies by product and target market. Contact us for confirmed specifications.
Product Inquiry
Discuss product selection, pilot scope and target-market requirements with Hanwei Smart Gas.
Discuss Product Selection
Share the application scenario, target gas, installation environment and expected integration method so the appropriate product direction can be reviewed.


