Kestrel 3500 Delta T Instruction Manual
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Kestrel 3500 Delta T Instruction Manual

Pocket weather meter with backlight
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Thank you for purchasing the Kestrel 3500 Pocket
Weather Meter. This instrument will measure the following
environmental conditions:
• wind speed
• maximum wind gust
• average wind speed
• temperature (air, water snow)
• wind chill
• relative humidity
Plus additional features:
• clock
• data hold function
• automatic power-down function
INSTRUCTION MANUAL
Shop for Kestrel products online at:
Pocket Weather
• heat stress index
• dewpoint
• wet bulb temperature
• barometric pressure
• altitude
• delta T
• 3-hour pressure trend
• backlight
WeatherMeters-Direct
www.
3500 Delta T
Meter
®
with Backlight
1.877.766.5412
.com
Revised 07/26/10

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Summary of Contents for Kestrel 3500 Delta T

  • Page 1 3500 Delta T Pocket Weather Meter ® with Backlight Thank you for purchasing the Kestrel 3500 Pocket Weather Meter. This instrument will measure the following environmental conditions: • wind speed • heat stress index • maximum wind gust • dewpoint •...

  • Page 2: Operation

    (drop within -0.06 inHg and -0.18 inHg) kt, B pressure falling quickly (drop more than -0.18 inHg) Avg Speed m/s, ft/min, km/h, mph, kt, B WeatherMeters-Direct 1.877.766.5412 www. .com Shop for Kestrel products online at:...
  • Page 3 Because relative humidity is Simultaneously press to exit the reference pressure adjustment. also a function of the temperature, the response time will be dependent on the temperature WeatherMeters-Direct 1.877.766.5412 www. .com Shop for Kestrel products online at:...
  • Page 4 For example, it is not recommended to apply pesticides when Delta T is above 10. A range of 2 to 8 (degrees C) is ideal. The Kestrel 3500 Delta T uses house. The reference pressure will be the same as the pressure reading on the BAROMETRIC a pressure-corrected wet bulb temperature, ensuring accuracy in all conditions.

  • Page 5: Maintenance And Troubleshooting

    60° C [176° F] for extended periods of time. Doing so may cause permanent damage. 4,923 FPM), the Kestrel will lose some accuracy due to wear of the Zytec™ V-bearings in (Note that the inside of a car parked in the hot sun can reach very high temperatures.) the impeller.

  • Page 6: Beaufort Scale

    If for any reason Sensor Calibration you are not satis ed with the performance or operation of your Kestrel meter in the rst 30 Force Description All the sensors have been factory calibrated to be days, you may return it to your place of purchase for a full refund.
  • Page 7 Every NK product is tested and calibrated before it leaves our factory. We guarantee that it not sell it, share it, or use it for anything but product-related information bulletins (which will perform within speci cations when you receive it. Each Kestrel comes with a Certi cate WeatherMeters-Direct 1.877.766.5412...

  • Page 8: Additional Information

    Kestrel tune-ups. Assembled in the USA. The Kestrel 3500 Delta T is protected by US Patent All of our measurements are traceable to the National Institute of Standards and Technology, 5,783,753, 5,939,645 and 6,257,079. Nielsen-Kellerman reserves the right to change ensuring the highest level of accuracy.
  • Page 9 Kestrel® 3500DT Pocket Weather® Meter Register your Kestrel® Pocket Weather® Meter online at www.kestrelweather.com. NIELSEN-KELLERMAN 21 Creek Circle, Boothwyn, PA 19061 Phone: 610.447.1555 Fax: 610.447.1577 Web: www.kestrelweather.com Email: info@kestrelweather.com WeatherMeters-Direct 1.877.766.5412 www. .com Shop for Kestrel products online at:...

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