GrayWolf IAQ SURVEYOR II, Operating Instructions Manual

Page: 49 / 100

49
MAN IAQ Surveyor Issue 11 2004
3. MICROMANOMETER AND THERMOCOUPLE
air velocity, the duct dimensions must be entered into the
Surveyor instrument. The dimensions can be in the form of
a duct cross sectional area (csa) in m
2
(or ft
2
), or duct height
and width in meters (or feet).
(1) Press Meter/Menu.
(2) Use the cursor key to select 'Duct Averaging' and
press accept.
(3) With 'User Parameters' highlighted, press accept.
(4) With 'Units' highlighted, press accept and select
'Imperial' or 'Metric'.
(5) With 'Duct Values' highlighted, press accept.
(6) Select 'Edit Area' 'Yes' to enter csa dimensions, or 'No'
to enter height and width dimensions.
(7) Press 'Cancel' to return to meter mode.
The Volume Flow Rate reading displayed and logged will
now be calculated using these duct dimensions.
Table 1 Instrument Display Ranges
Units Range (±) Zero Displayed
Indication Resolution
Pressure Indications
Pa ±7000 Pa 0.0 0.1 Pa
mm H
2
O 700.00 0.00 0.01 mm H
2
O
in H
2
O ±30.000 0.000 0.001 in H
2
O
mbar ±70.00 0.00 0.01 mbar