# Battery-room gas-monitor fault interface

Canonical URL: https://eloragrid.ai/symbols/battery-room-gas-monitor-fault-interface
Publisher: Elora Grid
Updated: 2026-11-03
Lookup label: BGFI
Drawing use: Schematic
Reference families: Manufacturer

Representation: Functional block
Installation focus: switchrooms
Input: Gas-monitor health output
Output: Monitoring fault alarm

Reports a gas-monitoring equipment fault separately from a detected gas condition.

## In plain English

### What this block does

Reports a gas-monitoring equipment fault separately from a detected gas condition.

### A simple example

In a switchroom, the fire panel may report detection, system faults and a separately documented shutdown request to the station controller. These signals have different meanings and must not be combined into one unexplained alarm. For this reference, the drawing identifies “Gas-monitor health output” at the input and “Monitoring fault alarm” at the output. A failed monitor cannot establish a clear atmosphere.

### What the drawings help you do

Start at the named input: Gas-monitor health output. Identify its source device or document and the state represented on the drawing. Follow the named output: Monitoring fault alarm. Cross-reference its destination and separate the command from confirmation that the equipment responded.

### Terms

- Input: Gas-monitor health output
- Output: Monitoring fault alarm
- Application reference: An explanation of a named drawing function or circuit relationship; the project documents define the equipment and its connections.

Concept diagram: Gas-monitor health output → BGFI → Monitoring fault alarm
A reading guide. The entry's original illustration and input/output facts describe this application.

- [Indoor substation: lighting, fire and auxiliary services](https://www.electrical-installation.org/enwiki/Indoor_substation)


## What it represents

Reports a gas-monitoring equipment fault separately from a detected gas condition. A fire-system interface passes defined indications and control requests between the fire installation and electrical equipment. The receiving circuit must identify the exact purpose of the signal and the equipment it affects.
In a switchroom, the fire panel may report detection, system faults and a separately documented shutdown request to the station controller. These signals have different meanings and must not be combined into one unexplained alarm. For this reference, the drawing identifies “Gas-monitor health output” at the input and “Monitoring fault alarm” at the output. A failed monitor cannot establish a clear atmosphere.
Use the coordinated fire cause-and-effect schedule to define each response. Original interface blocks describe signal roles without specifying suppression operation, evacuation behavior or life-safety performance. The functional block is an independent explanation of this named application. Equipment-specific ratings, terminal connections and operating conditions must be established in the project documentation.

## How to read it

- Start at the named input: Gas-monitor health output. Identify its source device or document and the state represented on the drawing.
- Follow the named output: Monitoring fault alarm. Cross-reference its destination and separate the command from confirmation that the equipment responded.
- A failed monitor cannot establish a clear atmosphere.
- Use the coordinated fire cause-and-effect schedule to define each response. Original interface blocks describe signal roles without specifying suppression operation, evacuation behavior or life-safety performance.

## Information to show or reference

- Label the source and connection reference for gas-monitor health output.
- Identify the destination and defined state of monitoring fault alarm.
- Record the equipment or control-document revision supporting this functional block.
- Check this application limit in the project design: A failed monitor cannot establish a clear atmosphere.

## Important distinction

A failed monitor cannot establish a clear atmosphere. This reference describes the named application; it does not establish a new IEC graphical symbol, an ANSI device-function number or an exact manufacturer connection diagram.

## Facts

- Representation: Functional block
- Installation focus: Switchrooms
- Input / boundary: Gas-monitor health output
- Output / connection: Monitoring fault alarm
- Lookup label: BGFI is a library lookup label, not a standard device designation.

## Public references

- [Indoor substation: lighting, fire and auxiliary services](https://www.electrical-installation.org/enwiki/Indoor_substation) — Schneider Electric. Public technical context for switchroom fire and emergency interfaces. Lighting, emergency lighting, fire provisions and substation auxiliary services. Original cause-and-effect examples require project design. The application text and educational graphic are independently authored; the publisher does not certify this representation.

## Graphic scope

Independent original educational concept illustration by Elora Grid. Not a certified standards graphic or manufacturer footprint. Unitless; not to scale. Original artwork licence: https://creativecommons.org/licenses/by/4.0/. Publisher material is linked only.