Pre-IDLH functionality test-Staging.
- 1. No damage to SCBA or mask.
- 2. Don SCBA and Mask.
- 3. Open cylinder. listen for ICM auto activation indicator. (audilarm ring up)
- 4. Verify no audible leaks.
- 5. Check HUD display, LEDs should illuminate through startup sequence.
- 6. Verify the center ALARM(green/red) button on the ICM is slowly flashing.
- 7. HUD has 4 green LEDs illuminated. Enter continuous mode by holding top green button on ICM for 3 seconds. 2 tones rising is cont. pressure mode.
- 8. Press and hold alarm button on ICM for manual activation.
- 9. Reset the ICM by pushing the reset/off(yellow) two times within one second.
At appropriate time connect the MMR to the mask