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© MMXXI Kirby Morgan Dive Systems, Inc. All rights reserved. Document # 210607001
11
Test the regulator for proper function
Nose Block Device Installation
Properly installed nose block device.
1.3 Test the regulator for proper
function
NOTE
When checking the regulator by depressing
the purge button, the regulator may free flow
without back pressure inside the oral nasal
mask. This is completely normal. Placing a
finger or hand over the outlet tube of the
regulator will prevent free flow.
See "1.2.2 Adjusting the 455 Balanced
Regulator" on page 455BAL-3 in module 455
Balanced Regulator for proper adjustment.
NOTE
For all maintenance and adjustment
procedures, refer to the 455 Balanced
Regulator module found in the “Manuals and
Exploded Views” link under the “Support”
link at