This instrument has reached the following national standards.
1, sensitivity: the copper content is 2000PPM, and the host display value a is 0. 10. (National standard)
2. Stability: After preheating 10 minute, the indicated transmittance change caused by drift shall not exceed 0.5% or absorbance 0.003 within 0.3 minute. (National standard)
3. Linear error: 0. 1-0.3 ≤ 6%, 0.3-0.6 ≤ 3%.
4. Repeatability error: 2000PPM copper sulfate solution is continuously tested for 5 times ("0" and "t" are allowed before each measurement), and its transmittance is not more than 0.5% or a value is 0.003.
5. voltage: 220V 10V frequency: 50Hz 1Hz.
6. Working power: 12W
7. Overall dimensions: 27.5cm× 17cm×8.3cm (length× width× height).
8. Weight: 2.25 kg
9. Working environment: A. Temperature:10-30℃ B. Humidity: ≤85%.
Characteristics of TFC soil fertilizer tester (soil nutrient tester);
1, fresh soil, tap water and deep well water can be determined, and the results can be obtained in 20 minutes.
2, the operation is simple, as long as you can read, you don't need professional knowledge, just follow the instructions.
3. The finished reagents provided to users are all liquid and used according to the number of drops. When testing soil, users do not need to prepare pharmaceutical reagents, calibrate straws, triangular bottles, balances, etc.
4, reagents and drugs, so that the validity period is more than one year, which is longer than the validity period of reagents used in routine analysis in the laboratory.
5, nutrient colorimetric and standard solution at the same time, the concentration of direct reading, directly look up the table to know the amount of fertilization, without drawing a curve.
6. Recommended fertilization amount according to different climatic zones, different soil representative types and different crops in China.
7, exclusive use of fully enclosed turntable, 6 colorimetric cassettes, improve work efficiency by more than 4 times, and avoid repeated adjustment of the instrument. It takes only a few minutes to measure four samples by rotating the colorimetric tank once.
If you are using a new instrument that you just bought and need to use the self-contained battery pack built in the instrument, please connect the instrument with AC before using it. At this time, the charging indicator light on the instrument will light up and the instrument will start charging. After at least 8 hours, the rechargeable battery pack will be fully charged, and then the battery can be used for power supply. If you use AC power supply, you can use it after connecting AC power supply, and charge the battery at the same time.
Summary of TFC soil fertilizer tester (soil nutrient tester)
1、TFC-203PCA
Imported large-scale integrated circuits are used, and the equipment is equipped with "intelligent formula fertilization software system" CD, which can output the guided fertilization amount according to the user's demand; The amount of nutrients needed for the growth and development of 60 crops is stored in the memory; Rotating colorimetric cassette design (patent), testing four samples at the same time, large screen LCD Chinese character backlight display to guide the operation process; The host computer is equipped with a micro printer. It can quickly detect nitrogen, phosphorus, potassium, organic matter, humic acid, salt content and pH value (quantitative) in soil, fertilizer and plants, and can be stored by computer for data storage, remote transmission and printing. Plastic-sprayed steel plate shell is firm, beautiful and durable.
2、TFC-203PCB
Compared with TFC-203PCA, the configuration of micro printer is reduced.
3.TFC-PF intelligent output type
Using imported large-scale integrated circuits, a rotating colorimetric cassette (patent) was designed and four samples were tested at the same time. Large screen LCD Chinese character backlight display guides the operation process; The host computer is equipped with a micro printer. It can quickly measure nitrogen, phosphorus, potassium, organic matter, humic acid, salt content, pH (quantitative) and environmental (soil, water and air) temperatures in soil, fertilizer and plants. The amount of nutrients needed for the growth and development of 60 crops is stored in the memory; According to the user's needs, the guided fertilization amount can be output and printed. Plastic-sprayed steel plate shell is firm, beautiful and durable. Keep the computer serial interface and upgrade to TFC-203PCA.
4.TFC-203 integrated type
Using imported large-scale integrated circuits, a rotating colorimetric cassette (patent) was designed and four samples were tested at the same time. Large screen LCD Chinese character backlight display guides the operation process; The host computer is equipped with a micro printer. It can quickly detect nitrogen, phosphorus, potassium, organic matter, humic acid and pH value in soil, fertilizer and plants (quantitatively). Plastic-sprayed steel plate shell is firm, beautiful and durable. Keep the computer serial interface and upgrade to TFC-203PCA.
5.TFC- 1 biii+ printing
Digital circuit, program control, split printer, automatic printing of test results, rotary colorimetric cassette structure, can test four samples at the same time, exclusive patent.
6、TFC- 1B
Patented analog circuit design, AC /DC dual-purpose power supply and rotating colorimetric cassette structure can test four samples at the same time.
7.TFC intelligent popularization type
The integrated structure design of the chassis, four samples are tested at the same time, and the large-screen LCD Chinese character backlight display guides the operation process; The host computer is equipped with a micro printer. It can quickly determine nitrogen, phosphorus, potassium, organic matter, humic acid, salt content and pH value in soil, fertilizer and plants (quantitatively).
8, ZnS-Ⅰ intelligent output type
Rotating colorimetric cassette design (patent), testing four samples at the same time, large screen LCD Chinese character backlight display to guide the operation process; The host computer is equipped with a micro printer. It can quickly detect nitrogen, phosphorus, potassium, organic matter, humic acid and pH value in soil, fertilizer and plants (qualitatively). The amount of nutrients needed for the growth and development of 60 crops is stored in the memory; According to the user's needs, the guided fertilization amount can be output and printed.
Attachment: TFJ formula calculator
Automatically calculate the amount of fertilization and store 60 crops in the north and south.