VTSYIQI VD-99P
VTSYIQI VD-99P Smart Food Water Activity Meter
Instrukcijų vadovas
1. Įvadas
This manual provides detailed instructions for the operation and maintenance of the VTSYIQI VD-99P Smart Food Water Activity Meter. This instrument is designed for precise measurement of water activity in various food products such as paste, jam, jello, and dough. It features real-time printing and data recording capabilities, ensuring accurate and efficient quality control.
2. Produkto ypatybės
- Measuring range: Temperature, -10℃~50℃; Water activity, 0~1.000aw
- Resolution: Water activity: 0.001aw; Temperature: 0.1 C
- Measurement accuracy: Temperature ±0.5℃; Water activity ±0.012 (@23℃±5℃)
- Display mode: Large-screen LCD 128×64DOTS
- Repeatability: ≤0.008aw
- Data Storage: Can circularly record 5,000 sets of measured data
- Measurement time: 5~40min; automatic measurement
- Connectivity: RS232 interface or USB interface for computer connection
- Printing Function: Print at the end of measurement or real-time print
- Work environment: Temperature -10℃~50℃; Relative humidity 0~95%RH

Image: VTSYIQI VD-99P Smart Water Activity Meter displaying its key features and specifications.
3. Pakuotės turinys
Išpakuodami patikrinkite, ar yra visi toliau išvardyti daiktai ir ar jie yra geros būklės:
- VTSYIQI VD-99P Smart Water Activity Meter Main Unit
- WSC-4 Water Activity Sensor (1 unit)
- Mini Printer (TPμP-T Series)
- Maitinimo kabelis
- RS232 Interface Cable
- USB sąsajos kabelis
- Sample Dishes (multiple plastic cups)
- Spausdintuvo popieriaus ritinėlis
- Calibration Solutions (AR MgCl2, AR NaCl)
- User Manuals (for meter and printer)
- Dėklas nešiojimui
Video: Unboxing the VTSYIQI VD-99P Smart Food Water Activity Meter and its accessories.

Paveikslėlis: pilnas view of the VTSYIQI VD-99P Smart Water Activity Meter, including the main unit, sensor, printer, cables, calibration solutions, sample dishes, and carrying case.
4. Sąranka
- Išpakavimas: Atsargiai išimkite visus komponentus iš nešiojimo dėklo.
- Maitinimo jungtis: Connect the power cable to the 'Power Socket' on the rear panel of the main unit and plug it into a compatible power outlet (100-230VAC ±10% 50Hz/60Hz).
- Jutiklio jungtis: Connect the WSC-4 Water Activity Sensor cable to one of the 'Sensor Socket' ports (No.1, No.2, No.3, or No.4) on the rear panel. Ensure a secure connection.
- Spausdintuvo jungtis: Connect the mini printer to the 'Printer Power Outlet' and the 'Communication Port' on the rear panel of the main unit using the provided cables.
- Pradinis įjungimas: Flip the 'Power Switch' to the ON position. The device will perform a self-check and display the main menu.

Image: The rear panel of the VD-99P meter, highlighting the sensor sockets, communication ports, printer power outlet, and power switch.
5. Naudojimo instrukcijos
5.1. Pagrindinė navigacija
Use the 'SELECT' button to cycle through menu options and the 'CONFIRM' button to enter a selected option. The '+' and '-' buttons are used for adjusting values or navigating within sub-menus.
5.2. Matavimas
- From the main menu, select "1. Measurement" and press 'CONFIRM'.
- Paruoškite savo sample (e.g., dough, paste) in a clean sample patiekalas.
- Place the WSC-4 sensor directly onto the sample, ensuring good contact.
- The meter will begin measuring water activity (AW) and temperature (Temp). The measurement time will be displayed.
- Once the measurement is complete (typically 5-40 minutes), the results will be displayed on the LCD screen.
- If the printer is connected and enabled, the results will automatically print.
Video: Demonstrates the process of taking water activity measurements using the VD-99P meter and WSC-4 sensors on various food samples, including the printing of results.

Image: The VTSYIQI VD-99P Smart Water Activity Meter connected to multiple WSC-4 sensors, actively measuring water activity in dough samples.
5.3. Kalibravimas
Regular calibration ensures the accuracy of your water activity meter. The VD-99P supports one-point and two-point calibration using standard solutions.
- From the main menu, select "2. Calibration" and press 'CONFIRM'.
- Choose between "1. One-Point" or "2. Two-Point" calibration.
- For one-point calibration, select the desired standard solution (e.g., NaCl). For two-point, select two different standard solutions (e.g., NaCl and MgCl2).
- Place the WSC-4 sensor onto the respective calibration solution in a sample patiekalas.
- Follow the on-screen prompts to complete the calibration process. The meter will display the current AW and temperature readings during calibration.
Video: Demonstrates the calibration process for the water activity meter using standard NaCl and MgCl2 solutions.

Image: Petri dishes containing calibration solutions (NaCl and MgCl2) used for accurate water activity measurement.
5.4. Nustatymai
The settings menu allows you to configure various parameters of the meter.
- From the main menu, select "3. Setting" and press 'CONFIRM'.
- You can adjust the measurement time (M Time) using the '+' and '-' buttons.
- Toggle "Automatic measurement" ON or OFF.
- Press 'CONFIRM' to save changes and exit the settings menu.
Video: Demonstrates how to access and adjust settings on the VD-99P meter, including measurement time and automatic measurement options.
5.5. Užklausa
The query function allows you to review previously recorded measurement data.
- From the main menu, select "4. Query" and press 'CONFIRM'.
- Use the '+' and '-' buttons to navigate through the stored data sets.
- Press 'SELECT' to view details of a specific record.
6. Priežiūra
- Valymas: Regularly clean the exterior of the main unit and sensors with a soft, dry cloth. Avoid using abrasive cleaners or solvents.
- Jutiklio priežiūra: Keep the WSC-4 sensors clean and free from sample residue. Store them in a dry, dust-free environment when not in use.
- Kalibravimo sprendimai: Store calibration solutions according to their instructions to maintain their integrity and accuracy. Replace expired solutions.
- Saugykla: When not in use for extended periods, store the meter and all accessories in the provided carrying case in a cool, dry place.
7. Problemų sprendimas
| Problema | Galima priežastis | Sprendimas |
|---|---|---|
| Matuoklis neįsijungia | Power cable not connected, power switch off, power outlet issue. | Check power cable connection, ensure power switch is ON, test power outlet. |
| Netikslūs rodmenys | Sensor dirty, sensor not properly placed, calibration needed, expired calibration solution. | Clean sensor, ensure good contact with sample, perform calibration, replace calibration solutions. |
| Spausdintuvas nespausdina | Printer cable disconnected, no paper, printer power off, printer settings incorrect. | Check printer connections, replace paper roll, ensure printer is powered on, verify printer settings in the meter. |
| Jutiklis neaptiktas | Sensor cable loose or damaged. | Ensure sensor cable is securely connected to the correct port. Inspect cable for damage. |
8. Specifikacijos
| Funkcija | Detalė |
|---|---|
| Gamintojas | VTSYIQI |
| Modelio numeris | VD-99P |
| Matavimo diapazonas (temperatūra) | -10 ℃ - 50 ℃ |
| Measuring Range (Water Activity) | 0~1.000aw |
| Resolution (Water Activity) | 0.001aw |
| Skiriamoji geba (temperatūra) | 0.1 C |
| Measurement Accuracy (Temperature) | ±0.5 ℃ |
| Measurement Accuracy (Water Activity) | ±0.012 (@23℃±5℃) |
| Pakartojamumas | ≤0.008aw |
| Ekrano režimas | Large-screen LCD 128×64DOTS |
| Data Record Capacity | 5,000 komplektai |
| Matavimo laikas | 5~40min (automatic) |
| Work Environment (Temperature) | -10 ℃ - 50 ℃ |
| Work Environment (Relative Humidity) | 0~95 % RH |
| Maitinimo šaltinis | 100~230VAC ±10% 50Hz/60Hz |
| Prekės svoris | 16 kg |
| Siuntinio matmenys | 75 x 45 x 24 cm |
9. Garantija ir palaikymas
VTSYIQI provides a standard quality assurance for one year from the date of purchase. In addition, if you encounter any quality issues with the meter within the first three months, a replacement will be provided. The printer's warranty period is also one year.
Garantija netaikoma:
- Damage to visible components of the sensor.
- Damage caused by pulling out the plug incorrectly or inserting the wrong plug type.
- Damage due to improper operation, unauthorized disassembly, or human factors.
This warranty card must be owned and fully preserved by the user for warranty claims. The card service is not accepted without it.
For technical support or service inquiries, please contact your vendor or refer to the contact information provided in the product packaging.
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