1. Увод
The VTSYIQI VTS-160A Water Activity Meter is designed to measure the water activity of various food products. Water activity is a critical factor influencing food stability, microbial growth, and chemical, enzymatic, and physical changes that affect food quality and shelf life. This portable device provides accurate measurements to assist in food preservation and quality control.
Кључне карактеристике:
- Portable and lightweight design (approx. 100g).
- High precision with an accuracy of ±0.02 aw.
- Fast measurement time, typically 5 minutes.
- Integrated sensors and readings for ease of use.
- LCD backlight digital display showing water activity and temperature simultaneously.
- Automatic and manual shutdown functions.
- Ундерволtage alarm indication.
- USB data output option for PC connection.
Figure 1.1: The VTS-160A Water Activity Meter in use, demonstrating its application across various food types.
Figure 1.2: Product Introduction diagram highlighting the main components of the VTS-160A meter.
2. Компоненте и додатна опрема
The VTS-160A Water Activity Meter comes with the following standard accessories:
- Main Unit (VTS-160A Water Activity Meter)
- Sample Plate(s)
- Торбица за ношење
- Оперативни приручник
Figure 2.1: The VTS-160A Water Activity Meter with its standard accessories, including the carrying case and sample plates.
3. Спецификације
Технички параметри:
| Параметар | Валуе |
|---|---|
| Дисплаи | 6-bit backlight LCD digital display (3-bit humidity aw, 3-bit temperature) |
| Домет | 0 to 1.0 aw |
| Резолуција | ±0.01 ав |
| Прецизност | ±0.02 ав |
| Сензор | Непроводљиви сензор влажности |
| Sampлинг Тиме | 5 minutes (typical) |
| Operating Condition (Temperature) | 0 до 50°Ц (32 до 122°Ф) |
| Operating Condition (Humidity) | <95% РХ (без кондензације) |
| Повер Суппли | 2 x 1.5V AAA (UM-4) Batteries (not included) |
| Димензије | 135 к 70 к 44 мм |
| Тежина | КСНУМКСг (без батерија) |
Опште спецификације:
- Product Dimensions: 40 x 10 x 25 cm (packaged)
- Item Weight: 4 kg (packaged)
- Боја: сива
4. Подешавање
4.1 Инсталација батерије
- Пронађите одељак за батерије на задњој страни мерача.
- Отворите поклопац батерије.
- Insert two 1.5V AAA (UM-4) batteries, ensuring correct polarity.
- Добро затворите поклопац батерије.
Figure 4.1: Open battery compartment on the back of the VTS-160A meter.
5. Оперативни поступак
5.1 Measuring Water Activity
- Притисните тастер Повер key to switch on the meter. The gauge will enter auto mode, automatically initiating the water activity test.
- Postavite svoj sampле у чист сample plate. Ensure the sample is representative and fills the plate adequately without overflowing.
- Carefully cover the sensor of the meter onto the sample plate, ensuring a good seal.
- Allow approximately 5 minutes for the reading to stabilize. Once stable, the water activity value will be displayed on the LCD.
- After testing, press and hold the Повер key for approximately 3 seconds to turn off the meter.
- Очистите сample plate thoroughly after each use to prevent cross-contamination and ensure accurate future readings.
Figure 5.1: Step-by-step guide for performing a water activity measurement.
6. Reading Correction (Calibration)
If it becomes necessary to correct the reading value, follow these steps:
- Притисните и држите Повер притиснути око 7 секунде.
- Release the key when the signal 'Cor' appears on the display. A decimal number with two places, representing the current correction value, will be shown.
- Open the battery cover on the back of the meter. Below the battery slot, you will find two small holes.
- Using a small, hard, non-conductive tool (e.g., a small screwdriver or toothpick), gently touch the key inside the left hole to increase the correction value.
- Gently touch the key inside the right hole to decrease the correction value. Adjust the value as needed.
- Притисните тастер Повер key again to confirm the new correction value. The measured reading will update, and the calibration is complete.
Figure 6.1: Step-by-step guide for performing reading correction.
7. Одржавање
7.1 Чишћење
- Увек чистите сample plate immediately after each use to prevent residue buildup, which can affect measurement accuracy.
- Користите меку, дamp cloth to wipe the exterior of the meter. Do not use abrasive cleaners or solvents.
- Ensure no liquids enter the sensor area or battery compartment.
7.2 Складиштење
- When not in use, store the meter in its carrying case to protect it from dust and physical damage.
- Чувати на хладном и сувом месту, далеко од директне сунчеве светлости и екстремних температура.
- Извадите батерије ако уређај неће бити коришћен дуже време како бисте спречили цурење.
КСНУМКС. Решавање проблема
If you encounter issues with your VTS-160A Water Activity Meter, consider the following:
- Нема напајања: Проверите да ли су батерије правилно постављене и да ли су довољно напуњене. Замените батерије ако је потребно.
- Нетачна очитавања: Осигурајте сample plate is clean and the sensor is properly seated on the sample. Perform a reading correction as described in Section 6. Verify that the operating conditions (temperature, humidity) are within the specified range.
- Slow Readings: Осигурајте сample is properly prepared and the environment is stable.
- Проблеми са приказом: Ако је екран слаб или трепери, замените батерије.
За сталне проблеме које ови кораци нису решили, обратите се корисничкој подршци.
9. Информације о подршци
For technical assistance, warranty inquiries, or service, please contact VTSYIQI customer support through your purchase platform or the official VTSYIQI webсајту.
Please have your model number (VTS-160A) and purchase date available when contacting support.