User`s guide

Chapter 3: Pressure Differential Alarm/Bypass Check Bird Sentry™ Blender
12 L1383 Rev. D
PROCEDURE BIRD SENTRY™ RESPONSE
11. Slowly raise the pressure of air regulator to
50 PSIG and back to 0 PSIG while observing
the oxygen hose end in beaker.
No bubbles should be observed. Audible
alarm sounds.
12. Dry and reattach the oxygen inlet hose to the
regulator.
No response.