FP640 flame photometer (specialized for soil and fertilizer industry)

(Mainly used to check for available potassium, slow-release potassium, total potassium, etc. in soil. Suitable for soil fertilizer stations, agricultural technology promotion centers, etc.)

Main performance parameters

·Potassium and Sodium

·Dual channel proportional value display

·Readings can display decimal points

·Rotary knob operation

·Pre selected flame size

·Equipped with flameout protection device

·Repeatability: ≤ 3%

·Sample suction and spray volume:< 6mL/min

·Response time:< 8s

·Spectral splitting method: interference filter

·Display mode: LED LCD screen

·Stability: ≤ 3% within 15 seconds; ≤ 5% within 5 minutes

·Detection limit: K:≤0.004mmol/L; Na:≤0.008mmol/L

·Linear error: K：≤0.005mmol/L ; Na：≤0.03mmol/L

·Test scope: K：0～100ug/ml; Na：0～160ug/ml

·Transmittance characteristics of filter: potassium: absolute value of peak wavelength error ≤ 7nm, sodium: absolute value of peak wavelength error ≤ 5nm

Potassium: Half width ≤ 15nm Sodium: Half width ≤ 15nm

Potassium: background transmittance ≤ 0.5% Sodium: background transmittance ≤ 0.5%

application area

·Soil fertilizer, third-party testing, professional colleges