Full dimensional FAQ analysis of YT-CY12 tea pesticide residue detector

Product selection questions

Q: Tea processing factories and tea trading markets purchase, YT‑CY12、 How to choose between the Blue Rainbow CY-01, Zhongyun CY10, and Yunze CY-S models?

Answer: Priority is given to YT-CY12 for large-scale screening of fresh and dried tea leaves. A dedicated correction algorithm has been developed specifically for strong pigment interference in tea chlorophyll and tea polyphenols. With 12 independent detection channels, it is suitable for multiple types of tea such as green tea, black tea, oolong tea, and pu erh tea, and meets the relevant standards for tea rapid testing. Blue Rainbow CY-01 does not have tea substrate correction, and pigment interference causes high false positives; The CY10 channels in Zhongyun interfere with each other, resulting in low detection efficiency in large-scale tea factories; Yunze CY-S does not have a dedicated tea detection program and can only use ordinary fruit and vegetable algorithms. YT-CY12 is equipped with three preset programs: tea garden, initial production plant, and trading market. It supports WiFi and 4G uploading to the tea industry supervision platform and issues QR code reports with traceability. It is a priority model for fast inspection of the tea industry chain.

Q: What are the core differences between the four major brands of tea farmers' cooperatives and tea planting bases?

Answer: Screening for fresh leaf harvesting in tea gardens requires resistance to interference from tea polyphenol pigments. The YT-CY12 matrix correction model is used to reduce misjudgments, and 12 channels are used to process fresh leaf samples from 12 plots at once; Blue Rainbow's ordinary pesticide residue detection equipment often falsely reports excessive levels of tea leaves, which can easily result in the rejection and loss of qualified fresh leaves; Zhongyun does not have data uploaded to the cloud, and a large number of land parcel records can only be saved locally; Yunze has a small storage capacity, making it easy to overwrite a large amount of records during the tea picking season. The instrument can be transported to rural areas by car, and the lithium battery supports field tea garden sampling. The detection report can serve as a reference voucher for tea purchase.

Question: What is the priority for purchasing within the budget range of 3400 yuan?

Answer: Blue Rainbow CY-01 has a low price, but without tea substrate correction, it can only be used for temporary rough screening; Zhongyun CY10 lacks wireless upload; Yunze CY-S does not have built-in printing; YT-CY12 comes standard with twelve channels, tea specific algorithms, lithium batteries, built-in printing, and multi network transmission. A complete set of tea specific extraction reagents is provided at the factory. The tea industry does not recommend the direct use of ordinary fruit and vegetable pesticide residue meters, as frequent false positives result in raw material losses that far exceed the price difference of instrument procurement.

Q: What are the key parameters for third-party screening and selection of tea?

Answer: It is necessary to have a tea substrate correction algorithm, 12 independent optical path channels, and a complete traceability report; YT-CY12 meets the requirements, with each record storing tea types, sampling plots, and harvesting times, and can be exported to Excel for project ledger purposes; Competitors lack matrix correction, and the test results have no reference value and cannot be used for initial screening of tea special sampling.

Q: Can YT-BN06 be used for portable testing of both tea and regular fruits and vegetables?

Answer: YT-BN06 is suitable for fruits and vegetables, but cannot counteract the interference of high pigments in tea leaves, resulting in a high false positive rate in tea testing. A small amount of tea is acceptable, but YT-CY12 must be selected for large-scale tea production control; CY12 is compatible with both regular fruits and vegetables, allowing one device to handle both tea and fruit and vegetable samples.

Q: Do I still need lithium battery configuration for indoor tea testing in the laboratory?

Answer: CY12 lithium battery is a standard configuration, which can be connected to 220V mains power indoors, with float charge protection for the battery; In the future, if there is a need to sample tea gardens in rural areas, it can be carried directly without the need to purchase new equipment.

Product functional issues

Q: What is the practical value of YT-CY12 tea exclusive matrix correction algorithm?

Answer: Green tea and oolong tea contain a large amount of chlorophyll and tea polyphenols. Ordinary enzyme inhibition equipment will identify natural substances as pesticide inhibitors, resulting in a large number of false positives. YT-CY12 uses algorithms to deduct the background of tea substrate, significantly reducing misjudgments, avoiding the determination of qualified fresh leaves as exceeding pesticide standards, protecting the interests of tea farmers, and preventing unqualified tea from entering the market.

Q: What are the advantages of batch testing with 12 independent optical paths?

Answer: 12 samples are simultaneously processed on the machine during the tea factory harvest season, and 12 plots of fresh leaves are processed at once, greatly improving the screening flux; Shared light source model, multiple tea samples are tested simultaneously and interfere with each other, resulting in poor repeatability. Each channel has independent zero calibration, and for single channel contamination, only the corresponding sample is retested.

Q: What is the function of multi tea preset programs?

Answer: Green tea, black tea, oolong tea, and pu erh tea store corresponding correction parameters, and switch tea types to directly retrieve the program without manually adjusting the correction factor each time. Different tea leaves do not need to be repeatedly debugged.

Q: WiFi/4G/USB multi-mode data transfer?

Tea Garden Goes to Countryside 4G Real time Upload to Tea Industry Supervision Platform; Workshop intranet WiFi summary factory raw material inventory ledger; Local backup of USB drive when there is no network; Report with QR code traceability, market supervision scanning code verification and testing records.

Q: Built in thermal printing tea traceability report?

Print documents including tea category, sampling plot, harvest date, inhibition rate, judgment result, and QR code; Raw materials from tea processing plants can be stored in paper archives for inspection by regulatory authorities.

Q: Automatic light source calibration when turned on to cope with temperature differences in the tea making workshop?

The tea making workshop has a large temperature difference between day and night, and the LED light source is prone to drift. It automatically calibrates the zero point every time it is turned on, without the need for manual blank zero adjustment, reducing detection errors caused by operator errors.

[Operation related issues]

Q: What is the standardized operating procedure for YT-CY12 fresh tea?

Answer: Cut 2g of fresh tea leaves into small pieces, add tea specific buffer extraction solution and shake, let it stand and take the supernatant; Configure control tube and sample tube, add enzyme and color reagent for constant temperature reaction, and then add substrate; Pour the colorimetric dish into the 12 channel compartment; Retrieve the corresponding tea specific detection program; The instrument automatically deducts the tea substrate and calculates the inhibition rate to provide a judgment; Print traceability reports and archive data in the cloud or USB drive; After the test is completed, take out the colorimetric dish and clean it to dry.

Q: Is there a step-by-step investigation for high false positives in tea?

Answer: Firstly, confirm the use of tea specific extraction buffer, and do not directly use ordinary fruit and vegetable reagents; Secondly, enable the corresponding tea substrate correction mode; The expiration date of the third check reagent, enzyme reagent inactivation can cause false alarms; Wipe the transparent surface of the fourth colorimetric dish clean; The fifth extraction oscillation time shall strictly follow the standard.

Q: Is there a batch sampling operation for multiple plots during the tea picking season?

Answer: The whole machine is fully charged with lithium batteries and enters the plot number for each tea plantation in the countryside; 12 samples are loaded onto the machine at once; No network local storage; Return to the factory USB drive to export all land parcel records and calculate the risk situation of each tea garden.

Q: Is it possible to store and retrieve multiple types of tea programs?

The touch screen program library stores multiple sets of parameters for green tea, black tea, and oolong tea, which will not be lost during power outages; Simply select the program to start when changing the tea category, without resetting the correction factor or reaction time.

Q: Bulk export of historical tea records?

Enter the data file, filter tea types and sampling time, batch select export to Excel for factory raw material inventory ledger; Paper reports can also be printed in bulk for archiving.

Q: What are the precautions for using a car in rural areas?

The vehicle is only used for charging during operation, and testing should be carried out after stopping; Avoid direct sunlight on the detection chamber, as strong light can interfere with the optical path readings.

[Maintenance related issues]

Q: Is the cleaning process for YT-CY12 tea factory's daily inspection completed?

Remove all colorimetric dishes from the testing chamber, rinse with distilled water, and air dry; Clean the tea extraction reagent splashed in the channel with a soft bristled brush; Wipe the touch screen with a dry cloth and prohibit spraying liquids; Clean up the paper scraps in the printing compartment; Dust proof storage of the entire machine. Tea extract contains tea polyphenols, which can contaminate the light path. Daily cleaning ensures detection accuracy.

Q: LED light source aging assessment and replacement?

Using tea standard quality control samples for testing, there is a significant deviation in inhibition rate and a light source alarm. The original LED light source module should be replaced and disassembled by oneself, without the need to return the entire machine to the factory. Avoid direct sunlight on the detection window to delay light source attenuation.

Q: Long term idle storage and maintenance of lithium batteries?

Keep the battery level at 50%, turn off the device, store the accessories properly, and perform light source calibration and power up every 15 days; Store in a dry and dark environment.

Q: What are the key storage points for tea specific reagents?

Enzymes and color reagents are refrigerated at 2-8 ℃; Portable refrigerated box for sampling in rural areas; Distinguish between ordinary fruit and vegetable reagents, do not mix tea specific buffer solutions, as mixing can directly lead to a large number of false positives.

Question: For the maintenance of colorimetric dishes, it is forbidden to scratch the transparent surface with hard objects. Scratches must be replaced.

Q: Quarterly deep maintenance of the entire machine:

Verify each of the 12 channels using tea label solution; Lithium battery charging and discharging test; WiFi、4G、 Full testing of printing and USB peripherals; Complete backup of data; Archive maintenance records.