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KONICA MINOLTA Chlorophyll Meter (SPAD-502Plus)

Accuracy Within ±1.0 SPAD units .
Repeatability Within ±0.3 SPAD units.
Display LCD panel showing 4-digit measurement value .
Display range -9.9 to 199.9 SPAD units.

The SPAD-502Plus enables quick, easy measurement of the chlorophyll content of plant leaves without damaging the leaf. Chlorophyll content is one indicator of plant health, and can be used to optimize the timing and quantity of applying additional fertilizer to provide larger crop yields of higher quality with lower environmental load.

FEATURES OF KONICA MINOLTA CHLOROPHYLL METER (SPAD-502PLUS)

Measurement method Optical density difference at two 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 .
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.
Accuracy Within ±1.0 SPAD units
Repeatability Within ±0.3 SPAD units
(SPAD value between 0.0 and 50.0 with no change in sample position).
Dimensions 78 (W) ×164 (H) ×49 (D) mm.
Weight 200 g (excluding batteries).

SPECIFICATION OF KONICA MINOLTA CHLOROPHYLL METER (SPAD-502PLUS)

Name	Details
Model	SPAD-502Plus
Brand	KONICA MINOLTA
Origin	Japan
Measurement method	Optical density difference at two 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.
Accuracy	Within ±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.**
Repeatability	Within ±0.3 SPAD units (SPAD value between 0.0 and 50.0 with no change in sample position).
Dimensions	78 (W) ×164 (H) ×49 (D) mm.
Weight	200 g (excluding batteries).