AMTAST WA-60A Portable Water Activity Meter Instruction Manual

1. הקדמה

The AMTAST WA-60A Portable Water Activity Meter is designed for precise measurement of water activity (aw) in various substances, including food products like beef jerky, freeze-dried food, fruits, and vegetables. This device helps assess product preservation and stability by quantifying the free water content. Its portable design and integrated sensor make it a convenient tool for on-site analysis.

2. המוצר נגמרview

איור 2.1: The AMTAST WA-60A Water Activity Meter in use, displaying a water activity reading. This device measures free water activity to assess the preservation and stability of food, medicine, and other products.

איור 2.2: The AMTAST WA-60A Water Activity Meter with its sample plate. The kit typically includes the meter, sample plate, portable bag, and manual for accurate measurement of free water content.

תכונות עיקריות:

• עיצוב נייד: Weighing approximately 100 grams, this meter is lightweight and suitable for on-the-go testing.
• מדידות מדויקות: Offers a measurement range of 0-1.0aw with a resolution of ±0.01aw and an accuracy of 0.02aw.
• חיישן משולב: Features a non-conductive humidity sensor and integrated readings in a single unit, simplifying water activity analysis.
• בדיקה מהירה: Provides rapid results, typically completing measurements within 5 minutes.
• תצוגה נקה: Equipped with a 6-digit backlit LCD screen that simultaneously displays water activity (aw) and temperature.
• פונקציות ידידותיות למשתמש: Includes automatic and manual shut-off options, along with a low battery indicator.

איור 2.3: מְפוֹרָט view of the meter's backlit LCD screen, showing both the water activity (aw) and temperature values for clear readings.

איור 2.4: Image showing the battery compartment for 2x1.5V AAA batteries and the non-conductive humidity sensor. The device also features automatic shutdown, manual shutdown, and alarm indication.

3. מפרטים

איור 3.1: The AMTAST WA-60A Water Activity Meter shown alongside its key specifications.

מפרט טכני

פָּרָמֶטֶר	עֵרֶך
מספר דגם	WA-60A
טווח מדידה	0.00 ~ 1.00 aw
הַחְלָטָה	±0.01 aw
דִיוּק	±0.02 aw
Temperature Operation Conditions	0-50 מעלות צלזיוס
Humidity Operation Conditions	<95% RH
משקל פריט	100 גרם (3.53 אונקיות)
ספק כוח	2 x 1.5V AAA Size (UM-4) Battery (not included)
חוֹמֶר	ABS
מידות	Approximately 13.5 cm (5.3 inches) height, 7 cm (2.8 inches) width

4. התקנה

Before first use, ensure the device is properly set up.

1. התקנת סוללה: Open the battery compartment on the back of the meter. Insert two 1.5V AAA batteries, ensuring correct polarity. Close the compartment securely.
2. Sampמחזיק: The meter comes with a sample holder featuring a strong magnetic connection. Ensure the sample holder is clean and dry before use.
3. Calibration (Highly Recommended): For accurate and reliable results, especially for food safety applications, it is highly recommended to calibrate the meter using certified water activity standards. This should be done in the range relevant to your testing.

5. תפעול

Follow these steps for accurate water activity measurement:

1. הכינו את שampעל: הניחו את ה- s שלכםample into a clean, dry sample cup. Ensure the sample fills the cup adequately without overflowing.
2. מקום שampעל: מקם את ה-sample cup onto the base of the meter. The magnetic sample holder will secure it in place.
3. שיווי משקל: שלב מכריע: After placing the sample and closing the meter, allow sufficient time for the sample to equilibrate with the sensor. This process can take several hours, or even overnight, depending on the sample type and environmental conditions. Do not turn on the meter immediately.
4. הפעלה: ברגע ש-ample has equilibrated, turn on the meter while it is still closed on the sample.
5. קרא מדידה: The LCD screen will display the water activity (aw) and temperature. Allow the reading to stabilize before recording the final value.
6. כיבוי: The device features automatic and manual shut-off options. To manually turn off, press and hold the power button.

איור 5.1: The meter is designed for quick and efficient testing, providing accurate readings for water activity measurements.

איור 5.2: The AMTAST WA-60A is widely used for testing water activity in various food products, including dried fruits, beef jerky, cookies, and sausages.

6. תחזוקה

• ניקוי: שמור את ה-sample holder and sensor area clean and free from debris. Use a soft, dry cloth to wipe the device. Do not use abrasive cleaners or immerse the device in water.
• אִחסוּן: Store the meter in its protective case in a cool, dry place when not in use. Remove batteries if storing for extended periods to prevent leakage.
• כִּיוּל: Regular calibration with known standards is essential to maintain accuracy. Refer to Section 4 for calibration recommendations.

7. פתרון תקלות

8. מידע בטיחות

• אל תנסה לפרק או לתקן את המכשיר בעצמך. פנה לאנשי מקצוע מוסמך לקבלת שירות.
• הרחק את המכשיר מטמפרטורות קיצוניות, לחות ואור שמש ישיר.
• טפלו במכשיר בזהירות כדי למנוע נזק פיזי.
• השלך סוללות בהתאם לתקנות המקומיות.

9. אחריות ותמיכה

For warranty information, technical support, or service inquiries, please contact AMTAST customer service. Refer to the product packaging or the official AMTAST webהאתר לפרטי יצירת קשר.

AMTAST Official Store: Visit the AMTAST Store on Amazon