| Produkter - Kestrel | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
Kestrel® 3500 Delta T speciellt för
|
|||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
|
Översikt Full Kestrel Specifikationer PDF för samtliga Kestrels modeller |
|
För att garantera säkerhet och effektivitet vid sprutning är det viktigt att kunna mäta relativ fuktighet, Vindhastighet och Vindriktning. Det finns regler den högsta tillåtna vindhastigheten under sprutning för att minimera vindavdrift. I varma, torra förhållanden, kan de dyra kemikalierna avdunsta till luften istället för på din grödor. Men du kan minimera kostsam avdunstning genom att välja ett lämpligt munstycke och öka spray dropparnas storlek. Kestrel 3500 DT innehåller Delta-T beräkning som är spridningen mellan våta termometerns Temperatur och den torra termometern temperatur (i grader ºC) |
|
|
Helst vill man inte spruta men om man måste är det viktigt att säkerställa att det sker säkert och effektivitet. Kestrel 3500 Delta T är byggd för det.
|
|
Delta T erbjuder en lathund för att fastställa acceptabel sprutning villkor. Exempelvis är det inte rekommenderat att använda bekämpningsmedel när Delta T är över 10 - en grupp 2 till 8 är idealisk. Med Kestrel 3500 Delta T, är beräkningen snabbt enkelt och exakt. Kestrel 3500 Delta T innehåller Barometertryck korrigering i sin våta temperatur beräkningen, säkerställa riktigheten även om lågt tryck dagarna på hög höjd, och i det mycket torra vädret när Delta T övervakning är viktig. Inga andra bärbara instrument erbjuder denna funktion med denna nivå av korrekthet. |
Egenskaper för Kestrel® 3500 Delta T
| Measurement Response Time |
Units | Operational Range | Resolution | Accuracy (+/-) |
Specification Range |
| Wind Speed 1 second |
m/s | 0.4 to 60.0 m/s | 0.1 | Larger of 3% of reading or least significant digit | 0.4 to 40.0 m/s |
| ft/min | 59 to 11,948 ft/min | 1 | 59 to 7877 ft/min | ||
| km/h | 1.0 to 218.0 km/h | 0.1 | 1.0 to 144.0 km/h | ||
| mph | 0.8 to 135.0 mph | 1 | 0.8 to 89.0 mph | ||
| knots | 0.6 to 118.3 kt | 0.1 | 0.6 to 78.0 kt | ||
| Beaufort | 0 to 12 B | 0.1 | 0 to 12 B | ||
| 1 inch diameter impeller with precision axle and sapphire bearings. Off-axis accuracy -1% @ 5º off-axis; -2% @ 10º; -3% @ 15º. Calibration drift < 1% after 100 hours use at 16 MPH / 7 m/s. Sustained operation above 60 MPH / 27 m/s will wear impeller rapidly and may cause destruction of impeller. Replacement impeller (NK PN-0801) may be field-installed without tools (US Patent 5,783,753). | |||||
| Temperature 1 second |
°F | -49.0 to 257.0 °F | 0.1 | 1.8 °F | -20.0 to 158.0 °F |
| °C | -45.0 to 125.0 °C | 0.1 | 1.0 °C | -29.0 to 70.0 °C | |
| Measures air, water and snow temperature. Thermally isolated, hermetically sealed, precision thermistor mounted externally (US Patent 5,939,645). Calibration drift negligible. | |||||
| Relative Humidity 1 minute |
%RH | 0.0 to 100.0 % | 0.1 | 3.0 %RH | 5.0 to 95.0 % non-condensing |
| Polymer capacitive humidity sensor mounted in thin-walled chamber external to case for rapid, accurate response (US Patent 6,257,074). (To achieve stated relative humidity accuracy, unit must be permitted to equilibrate to external temperature when exposed to large, rapid temperature changes and must be kept out of direct sunlight.) Calibration drift +/- 2% over 24 months. Relative humidity may be recalibrated at factory or in field using Kestrel Humidity Calibration Kit (NK PN-0802). | |||||
| Pressure 1 second (mb & PSI 4000 model only) |
inHg | 0.3 to 32.5 inHg | 0.01 | 0.05 inHg | At 77.0 °F, 22.1 to 32.5 inHg |
| hPa / mb | 10.0 to 1100.0 hPa / mb | 0.1 | 1.5 hPa / mb | At 25.0 °C, 750 to 1100 hPa / mb | |
| PSI | 0.15 to 16.0 PSI | 0.01 | 0.02 PSI | At 77.0 °F, 10.9 to 16.0 PSI | |
| Monolithic silicon piezoresistive pressure sensor with second-order temperature correction. Maximum error over temperature range 32 to 158 °F (0 to 70°C) , +/- 0.06 inHg / +/-2.0 hPa. Calibration drift typically -0.03 inHg / -1.0 hPa per year. Pressure sensor may be recalibrated at factory or in field. | |||||
| Altitude 1 second |
ft | -6000 to 30000 ft | 1 | 50 ft | At 77.0 °F, <19,700 ft. Max error +/- 98 ft |
| m | -2000 to 9000 m | 1 | 15 m | At 25.0 °C, <6,000 m. Max error +/- 30 m | |
| Temperature compensated pressure (barometric) altimeter. | |||||
| Dewpoint 1 minute |
°F | 0.0 to 100.0 %RH, -49.0 to 257.0 °F | 0.1 | 3.6 °F | -20.0 to 158.0 °F, 20.0 to 95.0% RH |
| °C | 0.0 to 100.0 %RH, -45.0 to 125.0 °C | 0.1 | 2.0 °C | -29.0 to 70.0 °C, 20.0 to 95.0 %RH | |
| Calculated from the primary measurements of temperature and relative humidity. Temperature to which the air would need to be cooled at a constant pressure to become saturated. | |||||
| Wet Bulb Temperature 1 minute | °F | -49.0 to 257.0 °F, 0.0 to 100.0 %RH, 8.86 to 32.48 inHg | 0.1 | 3.6 °F | 32.0 to 100.0 °F, 5.0 to 95.0% RH, 8.86 to 32.48 inHg, <19700 ft |
| °C | -45.0 to 125.0 °C, 0.0 to 100.0 %RH, 300.0 to 1100.0 hPa | 0.1 | 2.0 °C | 0.0 to 37.8 °C, 5.0 to 95.0 %RH, -2000.0 to 9000.0 hPa, <6000 m | |
| Calculated from the primary measurements of temperature, relative humidity and pressure. Temperature indicated by a wet bulb psychrometer. | |||||
| Max/Avg Wind Speed |
One-button clear and restart of Max Wind Gust and Average Wind measurement. | ||||
| Pressure Trend | Continuously updating three-hour barometric pressure trend indicator: rising rapidly, rising, steady, falling, falling rapidly. | ||||
| Display | Reflective 4 digit LCD. Digit height 0.36 in / 9 mm. | ||||
| Display Update | 1 second. | ||||
| Display Backlight | Aviation green electroluminescent backlight. | ||||
| Clock / Calendar | Real-time hours:minutes clock. | ||||
| Operational Temperature Range (LCD and Batteries) |
The operational temperature range of the liquid crystal display and batteries is 14° F to 131° F / -10 °C to 55 °C. Beyond the limits of the operational temperature range, the unit must be maintained within range and exposed for minimum time necessary to take reading. | ||||
| Storage Temperature | -22 °F to 140 °F / -30 °C to 60 °C. | ||||
|
Auto Shutdown |
After 45 minutes of no key presses. | ||||
| Certifications | CE certified. Individually tested to NIST-traceable standards (written certificate of tests available at additional charge). | ||||
| Batteries | CR2032, one, included. Average life, 300 hours of use, +/-depending on backlight use. | ||||
| Environmental | Waterproof (IP67 standard). Drop-tested (MIL.STD.810F; unit only. Substantial impact may damage replaceable impeller.). | ||||
| Dimensions | Unit 4.8 x 1.7 x 0.7 in / 122 x 42 x 18 mm. Case 4.8 x 1.9 x 1.1 in / 122 x 48 x 28 mm. | ||||
| Weight | Unit 2.3 oz / 65 g. Case 1.3 oz / 37 g. | ||||
| Kestrel Meters are designed and manufactured at NK’s facility in Boothwyn, Pennsylvania, and are individually calibrated at the time of manufacture. Every Kestrel Meter comes with a Certificate of Conformity to document the unit’s accuracy—all Kestrel measurements are traceable to the National Institute of Standards and Technology, ensuring the highest level of reliability. Additional NIST Calibration and Certification services are available. | |||||
| File | Beskrivning | File size | Senast ändrad |
|---|---|---|---|
 Kestrel3500dt_GB | Bruksanvisning på Engelska | 555 Kb | 2008-10-13 12:50 |
| < Föregående | Nästa > |
|---|