User's Manual

922 Pitot Tube
Instruction Sheet
2
0.939 D
0.765 D
0.563 D
0.437 D
0.235 D
0.061 D
0.074 D
0.288 D
0.500 D
0.712 D
0.926 D
ery001.eps
Log-Tchebycheff Rule for Rectangular Ducts
Number of Points or
Traverse Lines
Position Relative to Inner Wall
5 0.074, 0.288, 0.500, 0.712, 0.926
6 0.061, 0.235, 0.437, 0.563, 0.765,
0.939
7 0.053, 0.203, 0.366, 0.500, 0.634,
0.797, 0.947
Figure 1. Measuring Points and Traverse Lines for
Rectangular Ducts
D
0.968 D
0.865 D
0.679 D
0.321 D
0.032 D
0.135 D
Ery002.eps
Number of Points
per Diameter
Position Relative to Inner Wall
6 0.032, 0.135, 0.321, 0.679, 0.865, 0.968
8 0.021, 0.117, 0.184, 0.345, 0.655,
0.816, 0.883, 0.981
10 0.019, 0.153, 0.217, 0.361, 0.639,
0.783, 0.847, 0.923, 0.981
Figure 2. Measuring Points and Traverse Lines for
Circular Ducts
LIMITED WARRANTY AND LIMITATION OF LIABILITY
This Fluke product will be free from defects in
material and workmanship for two years from the date
of purchase, except for any Pitot Tube component (if
included with your product) which is warranted for
one year from the date of purchase. This warranty
does not cover fuses, disposable batteries, or damage
from accident, neglect, misuse, alteration,
contamination, or abnormal conditions of operation or
handling. Resellers are not authorized to extend any
other warranty on Fluke’s behalf. To obtain service
during the warranty period, contact your nearest Fluke
authorized service center to obtain return
authorization information, then send the product to
that Service Center with a description of the problem.
THIS WARRANTY IS YOUR ONLY REMEDY.
NO OTHER WARRANTIES, SUCH AS FITNESS
FOR A PARTICULAR PURPOSE, ARE
EXPRESSED OR IMPLIED. FLUKE IS NOT
LIABLE FOR ANY SPECIAL, INDIRECT,
INCIDENTAL OR CONSEQUENTIAL DAMAGES
OR LOSSES, ARISING FROM ANY CAUSE OR
THEORY. Since some states or countries do not
allow the exclusion or limitation of an implied
warranty or of incidental or consequential damages,
this limitation of liability may not apply to you.