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Summary of Contents for Kestrel 4400
- Page 1 Heat Stress Trackers KESTREL 4400 & 4600 INSTRUCTIONAL MANUAL AVAILABLE WITH WIRELESS DATA TRANSFER NKhome.com 800.784.4221...
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Page 2: Table Of Contents
Before relying on a Kestrel Meter's readings, use care to either a) force air flow over the Wet Bulb Globe Temperature......10 sensors by waving or slinging your meter through the air;... -
Page 3: Features & Options
Backlit Display NV Backlight Bluetooth® Data Transfer Figure 2 Data Storage Points 2300 1889 * All Kestrel Meters with temperature measurement allow you to measure air, water, and snow temperature. • = Optional Feature AMBIENT TEMPERATURE SENSOR SERIAL NUMBER PRESSURE SENSOR... -
Page 4: Getting Started
Recalibration of this sensor is not recommended without speaking to an NK technician. Full humidity • Insert batteries into bottom of Kestrel unit as shown on battery door. calibration instructions are provided with the Kestrel RH Calibration Kits. The unit may also be returned to • Snap door closed. -
Page 5: Screen Navigation
“On” and “Off”. • From your chosen Measurement screen, use or to scroll through the Mode options: The Kestrel Meter will continue to log data for hidden measurements. To view logged data of the hidden Current: Displays instantaneous reading. -
Page 6: Measuring Heat Stress
Proper Placement No risk The Kestrel Heat Stress Trackers should always be used at least 3 feet from the ground. If the unit is laid Your Kestrel Heat Stress Tracker allows you to activate and set up Low risk on the ground, it will compromise the measurements of user’s conditions. - Page 7 Figure 6 Figure 4 GUIDANCE FOR ATHLETIC TRAINERS Work/Rest and Water Consumption Table FLAG LEVEL OF WBGT COMMENTS Applies to average sized, heat-acclimated soldier wearing BDU, hot weather. (See TB MED 507 for further guidance.) COLOR RISK • The work/rest times and fluid Risk low but still exists on the basis Easy Work Moderate Work...
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Page 8: Thermal Work Limit
4400 THERMAL WORK LIMIT (TWL) ( ONLY) Measuring TWL (w/m ) > 220 140-220 115-140 < 115 The unit will also display a measure of human heat stress known as “Thermal Work Limit, ” or “TWL. ” TWL is based upon Globe Temperature, Relative Humidity, Ambient Temperature,... -
Page 9: Bluetooth® Setup
“REF BARO” screen Obtain your Kestrel BLUETOOTH PIN and ID Baro Displays current Barometric Pressure For added security, each Kestrel comes with a unique PIN and ID number to ensure Ref Alt Use or to set the known Altitude proper pairing. -
Page 10: Impeller Replacement
The digital compass must be calibrated to correct for the AAA batteries’ magnetic field. It must be re-calibrated every time the battery door is opened, and it will not display or log any direction values until faces the front of the Kestrel when installed. Orient one “arm” of the module straight up . calibration is complete. -
Page 11: Vane Mount Assembly
Measuring Direction Assembling the Vane Mount The Kestrel 4600's digital compass must be vertical to achieve accurate readings. Keep the unit positioned The Kestrel Vane Mount allows you to mount your Kestrel on any 1/4-20 equipped tripod for as close to vertical as possible when using any compass-related feature. After opening the battery door, long-term condition monitoring. -
Page 12: Glossary
The Black Globe on the Kestrel Heat Stress Trackers is representative of the amount of heat-absorption via the color black. Typically, Globe Temperature is taken using a 6” diameter copper globe painted black with an internal thermometer. However, the Kestrel 4400 and 4600 use a 1” copper globe painted black for calculations. -
Page 13: Maintenance & Service
• Always store your Kestrel meter with batteries installed within the specified temperature limits: -22.0 °F to 140.0 °F | -30.0 °C to 60.0 °C. Be particularly careful not to leave a Kestrel meter with batteries installed inside a hot car in the summer. -
Page 14: Notes
NOTES: 5-YEAR LIMITED WARRANTY Your Kestrel Heat Stress Tracker is warrantied to be free of defects in materials and workmanship for a period of FIVE YEARS from the date of its first consumer purchase. NK will repair or replace any defective meter or part when notified within the warranty period, and will return the meter via domestic ground shipping or NK’s choice of method of international... - Page 15 Fax: (610) 447-1577 Web: NKhome.com Email: info@NKhome.com Kestrel® Weather & Environmental Meters are designed and manufactured in the USA This device complies with Part 15 of the FCC Rules. Operation is subject to the following two conditions: (1) this device may not cause harmful interference, and (2) this device must accept any interference received, including interference that may cause undesired operation.
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