Purpose:
The MC-100 Chlorophyll Meter enables rapid, non-destructive measurement of chlorophyll content in plant leaves. It is an instrument capable of converting relative chlorophyll content (CCI) into actual chlorophyll content. The device has built-in calibration relationships between relative and actual chlorophyll content for 22 plant species, directly displaying the actual chlorophyll content. It can also convert CCI into SPAD units.
Principle:
Chlorophyll strongly absorbs red and blue light while exhibiting low absorption of near-infrared radiation beyond 700 nm. Based on this absorption characteristic, the MC-100 Chlorophyll Meter uses 653 nm red light as the excitation source and 931 nm near-infrared light as the reference source to illuminate plant leaves. The detector measures the ratio of transmitted near-infrared to red light, which represents the relative chlorophyll content. Using the instrument's built-in calibration data for 22 plant species, it calculates and outputs the actual chlorophyll content.
Features:
Directly displays chlorophyll concentration (unit: μmol/m²)
Advanced optical technology ensures fast measurements and large storage capacity, with data transferable to a computer
Equipped with USB and RS232 communication ports, compatible with GPS connection
Large measurement area; includes a light shield accessory for measuring narrow leaves less than 9 mm in width
Technical Specifications:
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Default Display Unit
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μmol/m²
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Optional Units
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CCI, SPAD
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Measurement Area
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63.6 mm² (9.0 mm standard diameter); 19.6 mm² (when using the small aperture light shield for leaves <5 mm in diameter)
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Resolution
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±10 µmol/m² for common plants (higher for specific plants); 0.1 CCI
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Linearity
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±1%
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Repeatability
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±1%
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Measurement Time
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<3 seconds
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Data Storage
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8 MB, up to 160,000 data points; 94,000 data points (when including GPS data)
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User Interface
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50 mm × 15 mm graphical LCD display with 8 control buttons for data operation
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Data Output
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Mini-B USB port for data transfer; RS-232 port for GPS connection
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Optional External GPS
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Communicates via RS-232; location data is synchronized and saved with each measurement
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Measured Variable
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Transmittance ratio of 931 nm to 653 nm light
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Operating Temperature
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0–50°C
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Temperature Drift
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Full-range temperature compensation for both light source and detector circuits
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Power Supply
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Standard 9V alkaline battery
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Auto Power-Off
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Automatically powers off after 4 minutes of inactivity or no data download
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Dimensions
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152 (L) × 82 (W) × 25 (H) mm
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Weight
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210 g
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