Product Description-----The activity meter can measure bread, biscuits, cakes, puffed foods, snack foods, dehydrated foods, dried fruits, meat clams, preserved fruits, etc. It mainly reflects the amount of free water in the state of food balance, the stability of food and the possibility of microbial reproduction, and the chemical, enzyme and physical changes that can cause the change of food quality. It is often used to measure the dryness enduring ability of the microorganisms .
Technical Parameters-----Display: 6 bit backlight LCD digital display, 3 bit humidity aw, 3 bit temperature display Range: 0~1.0aw Resolution: ±0.01aw Accuracy: ±0.02aw: Non conductive humidity Sampling Time: 5 Minutes Operating condition: Temp: 0~50°C (32~122°F) Humidity: <95%RH Power supply: 2x1.5V AAA Um-4 Battery Size: 135x70x44mm Weight: 100g (Not including batteries) Standard Accessories * Main Unit * Sample Plate * Carrying Case * Operation Manual .
Measuring Procedure------4.1 Press the power key to switch on the power and the gauge enters the auto mode which can automatically test the water activity. 4.2 Put the samples into the sample plate, and then cover the of the gauge onto the sample plate. Lay aside for about 5 minutes, when the reading gets stable, the water activity can be obtained. 4.3 After testing, press and hold the power key for about 3 seconds to turn off the gauge. Clean the sample plate for next use .
READING CORRECTION------When it is necessary to correct the reading value, press and hold the Power Key for about 7 seconds. Then release the key when the signal ‘Cor’, comes out on the display. There will be a decimal number with two places, which is the correction value. Then open the battery cover on the back, there are 2 small hole below the battery slot. Use a small hard bar (such as screwdriver) to slightly touch the key inside, the correction value will be increased or decreased .
Product Feature-----The VTS-160A can be used to measure the water activity of foods. No matter when and where you need to measure water activity, VTS-160A water activity meter is your unique choice. This is a real portable water activity meter, with a weight of only 100 grams, lighter than a mobile phone, and a precision of 0.02 aw, easy to measure water activity anytime and anywhere .
After the order , Kindly please answer us the following question . It is worth noting that the measured object cannot be HEATED.
1 What substance do you need to test and what accuracy do you need? We would like to confirm whether the Water Activity Meter you bought meets your requirements.
2 This instrument Resolution is ±0.01aw, Accuracy: ±0.02aw, does these conform your need? please confirm.
3 Sampling Time :
(1) 0.30aw-0.80aw: need to measure 5 minutes;
(2) 0.1aw-0.3aw, 0.8aw-0.95aw: need to measure 20 minutes;
(3) 0-0.1aw , 0.95aw-1aw: need to measure 24 hours.
