The soil nutrient tester can quickly test the N, P, K, humic acid , organic matter, salinity, and PH in the soil, fertilizer and plants, and also can store datum, remote send and print by computer.
l Quickly test the N, P, K, humic acid , organic matter, salinity, and PH in the soil, fertilizer and plant
l With the function of time display, can automatically record and save the time of test sample.
l Store about 1000 groups datum(time, place, fertilizers) , datum can be checked at any time.
l Print like the test date, number, items, sample contents, variety and so on
l Chinese big-screen LCD shows, and will guide you how to operate.
l When in the test, it has the functions of playback, so it’s very convenient and reasonable.
l Armor plate shell, firm, beautiful and durable.
l According to the local situation, you can set the variety, productivity, kind of fertilizer and will automatically calculate the fertilizing amount.
l The result will automatically transfer to the computer, for analyzing , gathering and storing.
Specification:
1. Nutrient measurement technology indicators:
1) Stability: A(
absorbency of illumimation) drift less than 0.003 in three minutes.
2) Repetitiveness: A(
absorbency of illumimation) less than 0.005
3) Linearity errors: less than 3.0 %
4) Sensitivity: red light ≥4.5 ×10-5；green light ≥3.17×10-3
5) Wavelength range: red light 620±4nm；blue light 440±4nm; green light 520±4nm
6) Shake resistance: qualified
(Attention: above indicators all exceed national standards)
2. PH: measurement technology indicators:
1) Range: 1～14
2) Error: ±0.1
3. Salinity measurement technology indicators:
1) Range: 0.01%～1.00%
2) Error: ±5%
1). Alternating current (AC): 80V～240V、50Hz; 2) Direct current: 18V、5W (With tester)