How can I test the Mircom MIX-2251AP smoke sensor to verify it's working?

[LeMaggie]

To ensure your Mircom MIX-2251AP Intelligent Photoelectric Smoke Sensor is functioning correctly, you can perform several tests as outlined in the instruction manual. First, a functional test can be conducted using a test magnet (P/N M02-04-01 or M02-09-00). Hold the magnet in the designated magnet test area, as illustrated in Figure 3 of the manual; the sensor should trigger an alarm on the control panel. Second, for a smoke entry test, an aerosol generator, like the Gemini 501, can be employed. Set the generator to produce 4%/ft to 5%/ft obscuration, following the Gemini 501 manual's instructions, and apply the aerosol until the panel alarms. For MIX-2251TAP and MIX-2251TMAP models, a direct heat method is also available, using a hair dryer of 1000-1500 watts directed towards either thermistor from about 12 inches away. The detector will reset after cooling. Always refer to the manual for specific testing procedures. If the sensor fails any test, clean it as directed in the manual and retest. If the issue persists after cleaning, replacement may be necessary.