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MEASURING THI, HLI, AHLU, AND WBGT
1. SELECTING THI AND HLI EQUATIONS.
1. Scroll to the THI Current Measurement Screen and
press select.
2. Set THI Model to either NRC or YOUSEF (see Glossary/
THI Menu for definitions).
3. Your Kestrel Cattle Heat Stress Tracker offers the
blended HLI equation (see Glossary/HLI Menu for
definitions).
2. CONFIGURE HLI AND THI SETTINGS
HLI Available in Kestrel 5400AG Cattle Heat Stress
Tracker Only
1. Scroll to HLI (or THI) Current Measurement Screen and
press select.
2. To use the colored HLI/THI zones or categories, scroll
to Zones and set to On. The zones increase from
White to Black in order of severity of risk of heat injury.
3. To access a pre-saved HLI/THI guideline, scroll to
Zones. . . and press select, then scroll to Guide. . . and
press select. Follow the menu options to find your
organizations suggested threshold guidelines for
each zone. More detailed information on zones can
be found in the Glossary/THI MENU and HLI MENU.
4. For information on setting custom zone settings see
page 16.
5. Light or buzzer alerts are available in the Kestrel
5400AG Cattle Heat Stress Tracker only. To receive
light or buzzer alerts when HLI or THI is above a zone
threshold, scroll to and select Alerts. . . in the HLI/
THI Settings menu. You may set Light and Buzzer
individually. Selecting a zone for Light or Buzzer
Kestrel 5000AG Livestock Environmental Meter Only
Kestrel Meters can calculate air flow through a duct by
combining user input information about the size and
shape of the duct with the measured air velocity. In
addition to reading the instantaneous Air Flow off the
main measurement screen, a more accurate result may
be obtained by capturing an average air flow on the Min/
Ave/Max screen while traversing the duct. Capturing
an average can be particularly helpful when measuring
ducts with registers or dimensionally uneven air flow.
» From any current measurement screen, scroll to AIR
FLOW and select Settings.
» Set Shape to match the shape of the duct, either Rect
(rectangle) or Circle.
» Input the dimensions of the duct by setting Length
and Width for a Rectangle or Diameter for a Circle
duct and press exit.
MEASURING AIR FLOW
Summary of Contents for 5000AG
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