Thông tin sản phẩm
Máy đo màu diệp lục Konica Minolta Chlorophyll Meter SPAD-502Plus
Type
Chlorophyll Meter SPAD-502Plus
Measurement subject
Crop leaves
Measurement method
Optical density difference at 2 wavelengths
Measurement area
2 mm × 3 mm
Subject thickness
1.2 mm maximum
Subject insertion depth
12 mm (with stopper having position adjustable from 0 to 6 mm)
Light source
2 LED elements
Receptor
1 SPD (silicon photodiode)
Display
LCD panel showing 4-digit measurement value (values shown to first decimal place) and 2-digit number of measurements; Trend graph of values in memory can also be shown.
Display range
-9.9 to 199.9 SPAD units
Memory function
Memory capacity for up to 30 values; Calculation/display of average of data in memory also possible
Power source
2 AA-size alkaline batteries
Battery life
More than 20,000 measurements (when using new alkaline batteries under Konica Minolta test conditions)
Minimum interval between measurements
Approx. 2 seconds