Elmdene 7422-sfg-g3f Manual Jun 2026

Upon receiving the 7422-SFG-G3F, check the following:

The unit requires external 24V DC power (e.g., from fire panel auxiliary output). Do not rely solely on input loop current.

If local ordinances or specific site requirements dictate no strobe flash after a certain period, locate the wire loop or jumper marked "Flash Disable" and cut or remove it. elmdene 7422-sfg-g3f manual

| LED D1 (Green) – Mains Present | LED D2 (Yellow/Amber) – Status | Meaning | | :--- | :--- | :--- | | ON (steady) | OFF | Normal AC operation, battery float charging. | | ON (steady) | ON (steady) | AC present, but battery is charging (high current). | | OFF | ON (flashing) | Mains fail – unit on battery backup. | | OFF | OFF | No power (check fuses or mains input). | | ON (flashing) | ON (flashing) | Battery fault – high internal resistance or open circuit. |

Are you integrating this with a specific control panel, like a or Texecom Premier ? Elmdene Products - Technical Guide Upon receiving the 7422-SFG-G3F, check the following: The

To ensure the unit functions correctly within a Grade 3 system, follow these general installation steps derived from the Elmdene Technical Guide :

: Unclip the unit and confirm the 2-pin battery plug is securely inserted into the PCB. If the module is several years old, the NiMH cells may have permanently failed; purchase and install an exact 6V 300mAh NiMH replacement battery pack . Manuals and Sourcing | LED D1 (Green) – Mains Present |

Flash approximately once per second to indicate the system is active; these can be disabled if required via internal links.

To get the most out of your unit, keep these tips from the Elmdene Technical Guide in mind:

Verify the polarity on the ST- terminal; many strobes are polarity-sensitive.

, the sounder/strobe is held "off" by a constant +12V. Triggering occurs when this 12V is removed. When NOT FITTED , it triggers on a 12V to 0V transition. With SAB mode