Kestrel 5500 User Manual

12
PROBABILITY OF IGNITION AND FINE DEAD FUEL MOISTURE
The Probability of Ignition (PIG) and Fine Dead Fuel Moisture
(FDFM, also known as Reference Fuel Moisture or 1 Hour Fuel
Moisture) measurements in the Kestrel Fire Weather Pro meters
come from the tables in the National Wildre Coordinating
Group, Incident Response Pocket Guide, 2014, with nighttime
measurements following the recommendation from the
National Wildre Coordinating Group, Fire Behavior Field
Reference Guide, 2014.
Setting User Inputs for PIG and FDFM
1. In the settings menu of the PIG Current Measurement
Screen, scroll to Shade and set it to match the shade
conditions of the location of interest.
2. Scroll to Aspect and set it to match the primary
direction the slope of the location of interest is facing.
Alternatively, the direction can be captured by selecting
Aspect and then scrolling to Capture and following the on
screen instructions. Hold the Kestrel vertically and face
the back of the Kestrel away from the slope face, then
press Select.
3. Scroll to Slope and set it to match the slope of the
location of interest.
4. Scroll to Fire Elevation and set it to match the relative
position of the location of interest.
Warning! It is important to ensure the Date and Time settings in your
Kestrel are correct when using PIG and FDFM measurements. After
removing the battery, Date and Time will need to be reset. If Date
and Time are not set correctly, PIG and FDFM measurements will be
incorrect.
Note! When the time set in the Kestrel is earlier than 08:00
or later than 19:59, The Shade Setting will be locked to
50%-100% per the recommendations in the Fire Behavior
Field Reference Guide. Between 08:00 and 19:59, Shade
will return to the previous value set by the user.
Note! When Temperature values are outside the extreme
high or low values listed in the PIG and FDFM tables, the
nearest extreme temperature value displayed on the table
will be substituted to derive PIG and FDFM.
Note! It is not necessary to set the Date and Time format
to 24 hour format when using PIG or FDFM.
Note! The Data Graph Screen for the PIG measurement
only displays a log of PIG measurements. FDFM
measurements are not logged.
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Kestrel 5500 Specifications

General

Humidity Range	0 to 100% RH
Water Resistance	IP67
Data Logging	Yes, up to 10, 000 data points
Bluetooth Connectivity	Yes
Measurement Parameters	Wind Speed, Temperature, Humidity, Pressure
Temperature Range	-20°C to 70°C
Pressure Range	300 to 1100 hPa
Accuracy	Wind speed: ±3%, Temperature: ±1°C, Humidity: ±2% RH, Pressure: ±1.5 hPa
Display	Backlit LCD
Battery Life	400 hours