Apogee Instruments S2-111 소유자 매뉴얼 - 페이지 14

{카테고리_이름} Apogee Instruments S2-111에 대한 소유자 매뉴얼을 온라인으로 검색하거나 PDF를 다운로드하세요. Apogee Instruments S2-111 17 페이지. Ndvi sensors
Apogee Instruments S2-111에 대해서도 마찬가지입니다: 소유자 매뉴얼 (20 페이지)

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Apogee Instruments S2-111 소유자 매뉴얼

MAINTENANCE AND RECALIBRATION

Blocking of the optical path between the target and detector can cause low readings. Occasionally, accumulated
materials on the diffusers of the upward-looking sensor and in the apertures of the downward-looking sensor can
block the optical path in three common ways:
1. Moisture or debris on the diffusers (upward-looking) or in the apertures (downward-looking).
2. Dust during periods of low rainfall.
3. Salt deposit accumulation from evaporation of sea spray or sprinkler irrigation water.
Apogee Instruments upward-looking sensors have domed diffusers and housing for improved self-cleaning from
rainfall, but active cleaning may be necessary. Dust or organic deposits are best removed using water, or window
cleaner, and a soft cloth or cotton swab. Salt deposits should be dissolved with vinegar and removed with a cloth
or cotton swab. Salt deposits cannot be removed with solvents such as alcohol or acetone. Use only gentle
pressure when cleaning the diffuser with a cotton swab or soft cloth, to avoid scratching the outer surface. The
solvent should be allowed to do the cleaning, not mechanical force. Never use an abrasive material or cleaner on
the diffuser.
It is recommended that two-band sensors be recalibrated every two years. See the Apogee webpage for details
regarding return of sensors for recalibration
repairs/).
(http://www.apogeeinstruments.com/tech-support-recalibration-