Requires the manufacturer’s proprietary “Brj Loader” software. This is for remote field updates.
A: Mostly, but not entirely. The “A” version adds two additional analog outputs. Chapter 3 of the Brj-502 Manual for the “A” variant shows terminals 11 and 12 differently. Always verify model suffix on the device label.
Solution: Swap the positive and negative sensor wires at terminals 8 and 9.
is a widely used digital natural gas detector designed to identify combustible gases like methane, propane (LPG), and coal gas in residential settings. Based on documentation from Manuals.plus Brj-502 Manual
The alarm will continue sounding until the surrounding gas concentration falls below the alarm point. Maintenance and Testing
Prepare a standard panel cutout based on the physical dimensions of your specific BRJ-502 variant (commonly 48x48mm, 48x96mm, or 96x96mm).
: Avoid using cleaning sprays, solvents, or hairspray near the sensor, as these can cause false alarms or damage the semiconductor. The “A” version adds two additional analog outputs
Avoid third-party “paid manual” sites. The Brj-502 Manual is freely distributed by the manufacturer.
support@brj-industries.com (include "BRJ-502" in subject line) Replacement Parts:
The BRJ-502 uses three LED indicators— (Green), STATE (Yellow/Red), and ALARM (Red)—along with an audible alarm ( ≥85is greater than or equal to 85 Solution: Swap the positive and negative sensor wires
and do not operate any electrical switches (including the phone or lights). Open windows and doors immediately to ventilate the area. Shut off the main gas valve .
The BRJ-502 is a robust tool that, when handled correctly, provides years of dependable service. Always keep the physical near the machine for quick reference during operation.