Honeywell FC-BKM-0001 Battery and Key Switch Module

Product Description

FC-BKM-0001 is Honeywell Safety Manager SIS dedicated battery and key switch module, designed for Honeywell Safety Manager / Safety Manager SC safety instrumented system rack. It integrates backup battery unit and maintenance key switch. The module provides battery power to retain system configuration data, event logs and real-time clock information during main power failure. The built-in key switch enables operator-level access control, maintenance override and system reset function for safety system. Powered by 24VDC nominal rack supply, it adopts rack plug-in design, conformal coated PCB option for corrosive industrial environment. This module is a critical spare part for Honeywell SIS safety cabinets, widely used in ESD and fire & gas protection systems. The legacy module can be supplied as new surplus or fully tested refurbished units.

Key Functions

• Backup battery function, preserve system parameters, event records and RTC data when main power loses
• Integrated mechanical key switch for security access, maintenance mode selection and safety system reset
• Real-time battery health monitoring, low battery alarm output to SIS controller
• Rack hot-swap capable, can be replaced without full rack shutdown
• 24VDC main power input, with reverse polarity, over-current and over-discharge protection
• Plug-in rack mounting, seamlessly fits Honeywell Safety Manager SIS chassis backplane
• Conformal coating optional, supports wide temperature range and harsh industrial environment
• Self-diagnosis function to report battery fault, switch status and module hardware failure

Application Scenarios

• Honeywell Safety Manager and Safety Manager SC SIS safety instrumented control cabinets
• Oil & gas, chemical plant ESD emergency shutdown protection system
• Offshore platform fire and gas detection & safety interlock system
• Power generation safety protection cabinet and industrial hazardous area control system
• Preventive maintenance and spare replacement for existing Honeywell SIS installations

FAQ

Q1: What is FC-BKM-0001 used for?
A1: It is battery backup plus key switch module for Honeywell Safety Manager SIS, to save system data and provide maintenance key operation.

Q2: What happens when battery is depleted?
A2: After main power outage, system configuration and historical events may be lost, low battery alarm will be triggered in SIS system.

Q3: Can it be hot swapped?
A3: Yes, it supports hot swap replacement in running SIS rack, follow official maintenance procedure.

Q4: Common faults?
A4: Battery aging / capacity loss, low battery false alarm, key switch contact wear, backplane connection failure.