Features:
* Import volume embedded digital chip technology, job stability, high precision, the test function can be expanded. Aluminum chassis design, easy to carry, durable.
* Can be detected in soil and fertilizer, organic fertilizer, fertilizer, plants the available nitrogen, available phosphorus, available potassium, total nitrogen, total phosphorus, total potassium, organic matter content, soil pH (qualitative).
* Available for more than 70 kinds of national agriculture, fruit trees, cash crops calculate the recommended amount of fertilizer target yield.
* Digital line, program design, full finished operating system, 240 × 160 dot matrix backlit large LCD display screen can display up to 10 lines of simplified Chinese characters, up to 15 characters per line test status and operating tips glance, minimizing operator mistakes and labor intensity. * Magazine section with five-channel solid-state modules, multi-light path, tandem design, source and signal reception than the blend color dark box section, no mechanical displacement and wear, optical positioning accuracy test to ensure the accuracy of the measurement results.
* Use high-brightness LED lamp as the light source, the silicon semiconductor as a signal receiving system, the level of life up to 100,000 hours. Light stability, good consistency.
* Test data can be selected by the user are stored in the instrument memory is not lost database. Users can take the test at any time transfer from the instrument display historical data query, data records may also be deleted.
* Built-plate clock chip, the screen can simultaneously display the current year, month, day, hour, minute.
* Random equipped with the "computer management software" that can be installed on a computer, the instrument test data uploaded to a computer to generate a database, user-friendly query, statistics, comparison, printing, and remote transmission, data interoperability enjoy.
* Independent power supply with single-hole socket, you can access to 220V AC, auto cigarette lighter power, solar power or any other 7.5V-35V DC power supply.
Testing technical parameters:
Nutrient parameters:
(1) Stability: A value (absorbance),drift less than 0.003 in three minutes.
(2) Repeatability: A value (absorbance) is less than 0.005
(3) Linearity error: less than 3.0%
(4) Sensitivity:red ≥4.5×10-5,blue≥3.17×10-3
(5) Wavelength range:red 620±4nm,blue 440±4nm,green 550±4nm
Shock resistance: Qualified
(Note: The above technical parameters are higher than the national standard)
TRF-3A:
Power: (1) AC mains: 180V ~ 240V, 50 Hz,
(2) DC power supply can be accessed by car cigarette lighter power, solar power, or any other 7.5V-35V DC power supply
Increased salinity, pH quantitative tests, were equipped with micro-printer, can print test data.
1, PH value (pH) Measurement parameters: (1) test range: 1 to 14 (2) error: ± 0.1
