Unrestricted Air Flow Indicator

Description

An indicator of whether the flow of air in the vicinity of the monitor’s probe is unrestricted by physical obstructions.

Valid values:

• Y : Yes - no restriction

• N : No - flow is restricted by obsstructions

• W : Waiver - Flow is restricted unavoidably, and the probe location has been approved by the EPA

Business Rules

An unrestricted air flow indicator value is valid if it is Y (for yes), N (for no), or W (for waiver).

If the value entered is N, transaction MH is required to enter monitor obstruction information.