TFC-203综合型土壤养分测试仪

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一、产品简介
One, product introduction
　　TFC-203综合型土壤养分测试仪可检测土壤、植株、有机肥料、生物肥料、化学肥料等样品中的速效氮、速效磷、有效钾、有机质，全氮、全磷、全钾的含量；可测土壤PH值（酸碱度）；可测土壤盐量（电导）。
TFC-203 integrated soil nutrient testing instrument can detect the soil, plant, organic fertilizer, biological fertilizer, chemical fertilizer in the samples of available nitrogen, available phosphorus, available potassium, organic matter, total nitrogen, total phosphorus, total potassium content; measurement of soil pH ( PH ); can be measured soil salt content ( conductance ).
二、技术指标　　
Two, technical indicators
★稳定性：A值（吸光度）三分钟内飘移小于0.003
Stability constant of: A ( absorbance ) within three minutes of drift less than 0.003
★重复性：A值（吸光度）小于0.005
Of heavy refolding: A ( absorbance ) is less than 0.005
★线性误差：小于3.0%
Of linear error: less than 3%
★灵敏度：红光≥4.5 ×10-5      蓝光≥3.17×10-3
The spirit of sensitivity: red = 4.5 x 10-5 = 3.17 x 10-3 blue
★波长范围：红光620±8nm   蓝光440±8nm
In the red wavelength range: 620 + 8nm 440 + 8nm blue
★抗震性：合格
Anti shock: qualified.
PH值（酸碱度）测量
PH ( PH ) measurement
★测试范围：1～14;
Test range : 1 ~ 14;
★误    差：±0.1
On error difference: + 0.1
盐量（电导）测量
Salt ( conductance ) measurement
★测试范围：0.01%～1.00%
Test range : 0.01% ~ 1%.
★相对误差：±5%
Of relative error: + 5%
★交流市电：180V～240V、50赫兹
Of AC city electricity: 180V ~ 240V, 50 Hz
★直流电：18V、5W（本仪器自带充电电池组,可在断电情况下启动）
Straight flow of power: 18V, 5W ( the instrument with a rechargeable battery pack, but in the case of power failure to start)