KONICA MINOLTA

Measuring Instruments

Giving Shape to Ideas

Chlorophyll Meter

Measuring Instruments

content

SPAD-502Plus

Chlorophyll Meter

Measures leaf chlorophyll, an important indicator of plant health.
The SPAD-502Plus performs quick measurements of the chlorophyll content of leaves without damaging the leaf. Its lightweight, splashproof design make it ideal for measurements in the field.

Specifications

Principle Specifications

Measurement methodOptical density difference at two wavelengths
Measurement area2 mm×3 mm
Subject thickness1.2 mm maximum
Subject insertion depth12 mm (with stopper having position adjustable from 0 to 6 mm)
Light source2 LED elements
Receptor1 SPD (silicon photodiode)
DisplayLCD 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 functionMemory capacity for up to 30 values; Calculation/display of average of data in memory also possible
Power source2 AA-size alkaline batteries
Battery lifeMore than 20,000 measurements (when using new alkaline batteries under Konica Minolta test conditions)
Minimum interval between measurementsApprox. 2 seconds
AccuracyWithin ±1.0 SPAD units (for SPAD value between 0.0 and 50.0 under normal temperature/humidity)
“*” added to display when measurement exceeds 50.0 SPAD units
RepeatabilityWithin ±0.3 SPAD units
(SPAD value between 0.0 and 50.0 with no change in sample position)
Dimensions78 (W) ×164 (H) ×49 (D) mm
Weight200 g (excluding batteries)

Back to Top