Water Activity Meter - Aw Meter

Water Activity Meter Aqualab Pawkit Decagon Devices

Measurements

Water Activity

Applications

Baked and Snack Foods, Beef Jerky, Candy and Confectionery, Cereal and Grain Products, Coffee/Tea, Cosmetics, Dairy Products, Dried Distillers Grain, Dried/ Dehydrated Products, Materials, Nuts/Dried Fruit, Pet Food, Plastics, Processed/Cured Meat, Sauces/Dressings, Seed Longevity, Spices, Tobacco.

Overview

Affordable, Portable Water Activity

Lightweight - just 4 ounces

Pocket-sized - 3.5 x 4 inches

Battery-operated

Easy two point calibration

Self-contained - low maintenance sensor and readout in a single unit

Most affordable water activity meter on the market

Limitations

No temperature control

Capacitance sensor limits accuracy to ± 0.02 aw

Sturdy and Reliable

Originally designed for government inspectors, the 4-inch Pawkit is a reliable water activity instrument for use on-the-go.

How It Works

To make a measurement, flip back the sensor cover and fit the Pawkit over a standard AquaLab sample cup. A push of a button brings an accurate reading within five minutes.

Pawkit owners include government inspectors, jerky manufacturers, small food companies, and production-line QA managers, among others. The Pawkit is accurate to ± 0.02 aw , so it can only be used where a higher accuracy is not critical.

Specifications

Sensor Type

Capacitance Sensor

Water Activity Accuracy

±0.02 aw

Water Activity Resolution

0.01

Water Activity Range

0.00 to 1.00 aw

Sample Temperature Accuracy

±0.2

Sample Temperature Resolution

0.1 ◦C

Sample Dish Capacity

7.5 ml Recommended ( 15 ml Full )

Measurement Time

Five Minutes

Display

6-digit Custom LCD with Symbols ( 3-Digit aw and 3-Digit Temp )

Case Dimensions

6.6 x 10.7 x 2.0 cm ( 2.60 x 4.21 x 0.79 in )

Case Material

Stainless Steel and Valox 325 Plastic

Weight

115 g ( 4 oz )

Power

2 to 3 V Li Coin Cells ( Three Year Typical Life )

Operating Environment

4 to 50 ◦C; 0 to 90% Relative Humidity ( Non-Condensing )

Certifications

CE; AOAC Approved Method for Measurement of aw

Warranty

One Year Parts and Labor

Aqualab Water Activity Meter 4TE Decagon Devices

Measurements

Water Activity

Applications

Baked and Snack Foods, Beef Jerky, Candy and Confectionery, Cereal and Grain Products, Coffee/Tea, Cosmetics, Dairy Products, Dried Distillers Grain, Dried/ Dehydrated Products, Materials, Nuts/Dried Fruit, Pet Food, Pharmaceuticals, Plastics, Processed/Cured Meat, Sauces/Dressings, Seed Longevity, Spices, Tobacco, Vegetable Oil.

Overview

Benchtop Water Activity Meter

Fast

water activity meter gets readings in 5 minutes or less

Accurate

±0.003 aw

Verifiable with independent salt standards

Repeatable

different users, different locations, same result

Portable

weighs just 7 pounds

Easy to use

water activity meter yields precise measurements with minimal training

Secure

offers administrative control over calibration and sample data

Proven

used by 80 of the top 100 food companies

Speed and Accuracy

Measure water activity in 5 minutes or less ( average read time : 2.5 minutes ) with ±0.003 aw accuracy. AquaLab instruments are the fastest, most precise water activity meters available.

Use ( Almost ) Anywhere

Water activity meters must report a temperature because water activity is temperature dependent. Internal temperature control lets you set a measuring temperature between 15º - 50°C and use the instrument anywhere-even outside the QC lab.

Use the AquaLab Water Activity Meter 4TE to get lab-quality measurements at the line, receiving dock, processing plant, storage facility-anywhere you need to test and verify the safety and quality of your products and ingredients.

How it Works

Put a 7.5 ml product sample in a disposable cup, place in the water activity meter, seal the sample chamber lid over the sample, and wait for vapor equilibrium.

An infrared beam focused on a tiny mirror determines the precise dewpoint temperature of the sample. That dewpoint temperature is then translated into water activity.

Easy to Clean

The sample chamber lid flips up so contaminated sensors are quick to spot and easy to clean.

Secure Data

The AquaLab Water Activity Meter 4TE stores time, date, and user information with every measurement and calibration, and can store up to 10,000 secure data points.

Administrative functions can be set to control access to data. Designate up to 25 unique users and passwords. Use the RS-232 serial data port to download or print data for statistical analysis and to maintain compliance records and archives.

Specifications

Water Activity Range

0.030 − 1.000 aw

Water Activity Accuracy

±0.003 ( 4TE Dew Point Mode )

Water Activity Accuracy

±0.015 ( 4TEV Capacitance Mode )

Water Activity Resolution

0.0001

Read Time1

≤ 5 min.

Sample Temperature Range

15 to 50 ◦C

Sample Temperature Accuracy

±0.2 ◦C

Sample Temperature Resolution

0.01 ◦C

Sample Dish Capacity

15 ml Full

Operating Environment

4 to 50 ◦C; 0 to 90 % Humidity

Case Dimensions

26.7 x 17.8 x 12.7 cm

Weight

3.1 Kg

Case Material

Lustran 433 ( ABS ) with fire retardant

Display

64 x 128 Graphical

Data Communications

USB and RS 232 A Serial, 9600 to 115200 baud

Power

110 to 220 VAC, 50/60 Hz

Warranty

One year parts and labor.

Water Activity - AW Meter RH2 Humimeter

Humimeter RH2 hygrometer with selectable sensors for determination of air humidity, material moisture and water activity

Features :

Relative air humidity measuring range depending on the sensor, resolution 0.1% rh

Absolute air humidity 0 to 130 g/m³, resolution 0.1 g/m³

Dew point -55 to +60°C / -67 to 140°F, resolution 0.1°C

Equilibrium wood moisture Ugl.: 2 to 30%, resolution 0.1%

Plastic granulate equilibrium moisture, resolution 0.01%

Water activity, resolution 0.001%

Measurement of CO2

Infrared temperature measurement

Temperature measuring range depending on the sensor, resolution 0.1°C

Automatic temperature compensation

Hold function, manual saving of results

Automatic datalog for up to 10,000 logs with measuring point report

Long-term stable humidity and temperature sensors

Very quick balancing

Scope of supply

Humimeter RH2 with rubber protection cover and batteries

Required accessories

Separate sensor

Specifications

Range

Depending on the sensor

Resolution

0,1 % RH

Temperatue range

Depending on the sensor

Resolution

0,1 °C

Dew point

-55 to +60 °C, resolution 0.1 °C

Absolute air humidity

0 to 130 g/m³, resolution 0.1 g/m³

Equilibrium moisture content UGL

2 to 30 %, resolution 0.1 %

Online function

Hold function, manual data storage

Automatic datalog

for up to 10,000 logs with measuring point report

Language

English, German, Italian, French, Spanish, Russia

Dimension

145 x 63 x 24 mm

Weight

210 g ( included Battery )

Included

Case

Rubber protection cover

Battery

AW Chamber and Temperature sensor

Cable length

2 meters

Measuring range

0 to 1.00 AW

Resolution

0,001

Calibration

0.10 to 0.80 ± 0.01 AW

0.00 to 0.10 and 0.80 to 0.98 ±0.40 AW ( at 25° )

Temperature range

0 to 50 °C / calibration ± 0.5 °C ( at 25° )

Included

4 twist-off caps

2 screw glasses 282 ml

2 screw glasses 330 ml