Product parameters:
Instrument use:Chlorophyll instrument can rates measurement plant of chlorophyll relative content or ' green degree ', plant leaves in the of chlorophyll content indicates has plant itself of status, grew good of plant of leaves will contains more of chlorophyll, chlorophyll of content and leaves in the nitrogen of content has is close of relationship, thus chlorophyll measurement value also can description plant real of Nitro demand, through this instrument conducive to reasonable imposed n, improve nitrogen of utilization, and can protection environment (prevent imposed too much of n and makes environment especially water by To pollution)
Measuring principle:TYS chlorophyll meter by measuring leaf series in both the transmittance in the wavelength range to determine the relative amounts of chlorophyll in leaves the current, where chlorophyll select the two wavelength regions that absorb certain wavelengths of light, according to the blade transmitted light amount measuring values.
Functional characteristics | Measurement time LCD display value of chlorophyll Instrument small and portable, portable field measurements |
Sample | Leaves of various plants |
Measuring area | Ф10mm |
Measurement mode | 2 wavelength optical concentration difference method |
Sensors | Silicon photodiode |
Display mode | Measurements: 3-digit LCD display Survey frequency: 2-digit LCD display |
Measurement Minimum interval | In less than 2 seconds |
Measuring range | 0.0~ 99.9 SPAD |
Precision | ± 1.0 SPAD (at room temperature, between SPAD value of 0~ 50) |
Repeatability | Within ± 0.3 SPAD units (SPAD values between 0~ 50) |
Reproducibility | Within ± 0.5 SPAD units (SPAD values between 0~ 50) |
Operating temperature | 0~ 50 ℃ |
Storage temperature | ~ 55 ℃ |
Memory capacity and Button function | 30 data, automatically calculates and displays the average Power switch: ON on, OFF is off; AVG (average) key: calculate the average of data in memory; DEL (erase all data) key: Clears all data in the device memory; DISP (display) button: display memory to store data; MEAS (measuring) button: press the MEAS key measurements. |
Power supply | 2, 5th battery |
Battery life | Each set of two batteries can last more than 20,000 operations |
Size (length x width x height) | 155mm×70mm×42mm |
Weight | 320 g (not including batteries) |
