1. Ifihan
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. Ọja Ipariview

Nọmba 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.

Nọmba 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.
Awọn ẹya pataki:
- Apẹrẹ to gbe: Weighing approximately 100 grams, this meter is lightweight and suitable for on-the-go testing.
- Awọn wiwọn to peye: Offers a measurement range of 0-1.0aw with a resolution of ±0.01aw and an accuracy of 0.02aw.
- Sensọ Iṣọkan: Features a non-conductive humidity sensor and integrated readings in a single unit, simplifying water activity analysis.
- Idanwo iyara: Provides rapid results, typically completing measurements within 5 minutes.
- Ko Ifihan kuro: Equipped with a 6-digit backlit LCD screen that simultaneously displays water activity (aw) and temperature.
- Awọn iṣẹ Ore-olumulo: Includes automatic and manual shut-off options, along with a low battery indicator.

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

Nọmba 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. Awọn pato

Nọmba 3.1: The AMTAST WA-60A Water Activity Meter shown alongside its key specifications.
| Paramita | Iye |
|---|---|
| Nọmba awoṣe | WA-60A |
| Iwọn Iwọn | 0.00 ~ 1.00 aw |
| Ipinnu | ± 0.01 awo |
| Yiye | ± 0.02 awo |
| Temperature Operation Conditions | 0-50°C |
| Humidity Operation Conditions | <95% RH |
| Iwọn Nkan | 100 giramu (3.53 iwon) |
| Ibi ti ina elekitiriki ti nwa | 2 x 1.5V AAA Size (UM-4) Battery (not included) |
| Ohun elo | ABS |
| Awọn iwọn | Approximately 13.5 cm (5.3 inches) height, 7 cm (2.8 inches) width |
4. Eto
Before first use, ensure the device is properly set up.
- Fifi sori batiri: Open the battery compartment on the back of the meter. Insert two 1.5V AAA batteries, ensuring correct polarity. Close the compartment securely.
- Sample dimu: The meter comes with a sample holder featuring a strong magnetic connection. Ensure the sample holder is clean and dry before use.
- 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.
Fidio 4.1: This video demonstrates the setup and basic operation of the AMTAST WA-60A Water Activity Meter, including how to prepare samples for measurement.
5. Isẹ
Follow these steps for accurate water activity measurement:
- Mura Sample: Gbe sample into a clean, dry sample cup. Ensure the sample fills the cup adequately without overflowing.
- Ibi Sample: Gbe awọn sample cup onto the base of the meter. The magnetic sample holder will secure it in place.
- Iṣatunṣe: Igbesẹ Pataki: 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.
- Agbara Tan: Ni kete ti awọn sample has equilibrated, turn on the meter while it is still closed on the sample.
- Ka Iwọn: The LCD screen will display the water activity (aw) and temperature. Allow the reading to stabilize before recording the final value.
- Agbara Pa: The device features automatic and manual shut-off options. To manually turn off, press and hold the power button.
Fidio 5.1: Yi fidio pese kan gbogboogbo loriview of the AMTAST Smart Water Activity Meter, demonstrating its use in a laboratory setting.
Fidio 5.2: This video demonstrates the process of using the Water Activity Meter for monitoring food water activity (AW).

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

Nọmba 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. Itọju
- Ninu: Pa awọn 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.
- Ibi ipamọ: 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.
- Iṣatunṣe: Regular calibration with known standards is essential to maintain accuracy. Refer to Section 4 for calibration recommendations.
7. Laasigbotitusita
| Isoro | Owun to le Fa | Ojutu |
|---|---|---|
| Àwọn ìwé kíkà tí kò péye tàbí tí kò péye | Insufficient equilibration time; lack of calibration; dirty sensor. | Rii daju sample equilibrates for several hours before measurement. Calibrate the device regularly with appropriate standards. Clean the sensor and sample dimu. |
| Ẹrọ naa ko ṣiṣẹ | Awọn batiri ti o ku tabi ti ko tọ ti fi sori ẹrọ. | Check battery polarity. Replace batteries with fresh 1.5V AAA batteries. |
| Ifihan ti wa ni baibai tabi unreadable | Batiri kekere. | Rọpo awọn batiri. |
8. Alaye Aabo
- Ma ṣe gbiyanju lati tunto tabi tun ẹrọ naa funrararẹ. Kan si oṣiṣẹ ti o peye fun iṣẹ.
- Jeki ẹrọ naa kuro ni iwọn otutu to gaju, ọriniinitutu, ati imọlẹ orun taara.
- Mu ẹrọ naa pẹlu iṣọra lati yago fun ibajẹ ti ara.
- Sọ awọn batiri sọnu ni ibamu si awọn ilana agbegbe.
9. Atilẹyin ọja ati Support
For warranty information, technical support, or service inquiries, please contact AMTAST customer service. Refer to the product packaging or the official AMTAST webaaye fun awọn alaye olubasọrọ.
AMTAST Official Store: Visit the AMTAST Store on Amazon