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    Product Name YUEFENG FP640 Flame Photometer YUEFENG FP6420 Flame Photometer
    Product Price $775.00 $1332.00
    Details Details
    Model comparison
    Channels Dual Dual
    Elements Na K Li Ca Na K Li Ca
    Spectral Mode Interference Filter Interference Filter
    Detector Photocell Photocell
    Direct Read
    Repeatability
    Linearity
    Parameter comparison
    Measuring range K:0.0~2.0mmol/L
    Measurement range Na:0.0~10.0mmol/L K:0.0~10.0mmol/LNa:0.0~200.0mmol/L
    Spectral splitting method Interference filter
    Stability The relative maximum variation of the instrument's indication within 15 seconds is ≤3%. The relative maximum change in the instrument indication within 15 seconds ≤ 3%.
    Linear error K≤0.005mmol/L K≤0.005mmol/LNa≤0.03mmol/L
    Linearity error Na≤0.03mmol/L
    Detection limit K≤0.004mmol/LNa≤0.008mmol/L K≤0.004mmol/LNa≤0.008mmol/L
    Detection limit K≤0.004mmol/LNa≤0.008mmol/L K≤0.004mmol/LNa≤0.008mmol/L
    Response time <8s
    Linear range K:0.02~0.1mmol/LNa:0.1~0.5mmol/L K:0.02mmol~0.1mmol/LNa:0.1~0.5mmol/L
    Linear range K:0.02~0.1mmol/LNa:0.1~0.5mmol/L K:0.02mmol~0.1mmol/LNa:0.1~0.5mmol/L
    Curve calibration method Straight-line method Straight-line method
    Ambient temperature 10~35 ℃ 10~35℃
    External Dimensions 650*400*375mm