MOUNTING
Whenever possible use the mounting flange for installing the EE671. The flange allows for correct positioning in the flow and for easy
adjustment of the immersion depth.
The arrows engraved on the sensing head of EE671 and on the mounting flange indicate the direction of the air stream during factory
adjustment.
Observe the direction of the arrow when installing the mounting flange.
Once the mounting flange is correctly aligned to the air flow direction, the alignment strip along the probe assures that the EE671 is
also correctly aligned.
Air flow
CORRECT
INCORRECT
MOUNTING INTO A DUCT
By leaving a key notch,
the flange can be mounted
only in the correct direction.
<2.8
(0.1")
>6.2
(0.2")
>16
(0.63")
conventional drilling:
air flow
>16
(0.63")
60
(2.4")
60
(2.4")
laser cutting:
The mounting flange allows also for precise setting of the EE671 immersion depth. The entire sensing head must be in the air flow to
be measured.
Immersion depth = 30 % - 50 %
of the duct diameter
duct diameter
CORRECT
INCORRECT
Air flow
When installing the EE671 probe without the mounting flange, make sure that the arrow on the sensing head matches exactly the flow
direction.
air flow
CORRECT
INCORRECT
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