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CODE 060990-010
Water Activity Analyzer
AW-1
Operation Manual
Thank you for purchasing this product.
Be sure to carefully read this operation manual before using the product.
Operate this product in accordance with the instructions on the following pages.
After reading this manual, keep it carefully stored together with the warranty.
For more information, contact your Sibata representative.
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Summary of Contents for Sibata AW-1
- Page 1 Be sure to carefully read this operation manual before using the product. Operate this product in accordance with the instructions on the following pages. After reading this manual, keep it carefully stored together with the warranty. For more information, contact your Sibata representative.
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Page 2: Table Of Contents
Contents Using this Product Safely and Correctly ··························································· 3 Overview ····································································································· 5 Functions ····································································································· 5 Precautions ·································································································· 6 Names of Parts ····························································································· 7 Preparations for Measurement ········································································· 9 5-1 Inserting Dry Cells ·················································································· 9 5-2 Replacing the Dry Cells ··········································································· 9 5-3 Using 100 V AC ···················································································... -
Page 3: Using This Product Safely And Correctly
Do not modify or repair: Never disassemble or modify this product, as doing so will void the Sibata warranty. It could also result in an unforeseen failure or accident. Have any product failures repaired promptly. Never operate the product with an ... - Page 4 (Because of the large storage capacity of personal computers, warranty-related issues regarding the content stored would lead to litigation if a problem occurred after staff from Sibata or a Sibata distributor configured or performed other operations. In order to prevent such problems, settings changes are entirely the responsibility of the user.)
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Page 5: Overview
Overview The AW-1 water activity analyzer indicates the water activity of samples in a container equipped with a precision humidity element. Water activity is a measure of the steam pressure of the moisture at the sample surface, and indicates the free water ratio. The sample moisture is divided into free water and bound water. -
Page 6: Precautions
50 % for at least 10 minutes. Sensor calibration offset could occur if the AW-1 is exposed for an extended time to ... -
Page 7: Names Of Parts
Names of Parts Front, Left and Right Sides Name Description This sliding switch turns the power ON/OFF. (1) Power switch When the protrusion is at the top, it is ON. When it is at the bottom, it is OFF. This switches the display between ambient temperature and humidity. - Page 8 (12) Protective sensor filter, dia. 18 This filter protects the sensor. This container holds the sample to be measured. (13) Sample container (20 mL capacity) Connector This is the connector for inserting the container into (14) the AW-1. (insertion into the main unit)
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Page 9: Preparations For Measurement
Preparations for Measurement 5-1 Inserting Dry Cells Confirm that the power switch on the AW-1 is in the OFF position. Remove the dry cell storage cover (9) on the back of the main unit. ● Slide the cover down and separate the mating parts. Then remove the entire cover. -
Page 10: Using 100 V Ac
● Install the USB drivers before connecting the AW-1 to the PC. ● Be sure to finish installing the USB drivers before connecting to the AW-1. (1) Browse to https://www.sibata.co.jp/ and in the product information search field, enter “AW-1” and click [Search]. -
Page 11: Connecting With The Pc
5-5 Connecting with the PC Check that the AW-1 power switch is OFF. Connect the micro B terminal of the USB cable to the USB interface connector on the AW-1. Connect the other end to the PC running AW-DSP. Turn ON the AW-1 power switch. If the analyzer is connected to the PC correctly, “- PC-”... - Page 12 01” will be displayed in this dialog box At this point, if the message shown in the figure to the right is displayed in the [USB connection status] dialog box, check the status of the USB cable and the Sibata USB drivers.
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Page 13: Setting The Date And Time
5-6 Setting the Date and Time Confirm that the PC and the AW-1 are connected properly. Then click [Time Adjustment] in the window shown below. The date and time on the PC connected will be transferred to the AW-1. ●... -
Page 14: Switching The Measurement Mode
5-7 Switching the Measurement Mode The water activity analyzer is equipped with two measurement modes. This setting can only be changed from the PC. Select the measurement mode, and click [Setting]. Stability Mode In this mode, measurements end when, after a set time, the water activity values settle down to a set fluctuation range. -
Page 15: Switching The Display
When the Sensor-Equipped Sample Container is Not Inserted The ambient temperature and humidity can be checked with the AW-1. To switch between the temperature display and the humidity display, press the display toggle switch (2). This switches the display. -
Page 16: Measurements
● “-ST-” is displayed before the sensor-equipped sample container is inserted. (2) Insert the sensor-equipped sample container into the AW-1. (3) During aging (for 1 minute), “-” is displayed in the display area. During measurement, the water activity value will flash. -
Page 17: Measurements In Quick (Prediction) Mode
● “-qc-” is displayed before the sensor-equipped sample container is inserted. (2) Insert the sensor-equipped sample container into the AW-1. (3) During aging (for 1 minute), “-” is displayed in the display area. During measurement, the water activity value will flash. -
Page 18: Error Window
Turn OFF the power, and check that the sensor-equipped sample container has been inserted properly into the AW-1. Err 1 The AW-1 and the sensor- If you repeat the procedure several Err 2 equipped sample container times but the error persists, there may Err 3 are not connected properly. -
Page 19: Calibration
PC, standard sample (standard salt, saturated solution, etc.) ● Before measurement, remove the sensor-equipped sample container. Calibration Method (1) Connect the PC and the AW-1 using the USB cable. (2) Run the special software. Click [Calibration]-[Water Activity Calibration]. - Page 20 (3) Select the calibration mode, and enter the values for [Standard Water Activity] and [Measurement Time]. The calibration factor is different for Quick mode and Stability mode. If using both modes, calibrate each respectively. ● Initialize the calibration factor before changing a standard sample. If the same standard sample is used, initialization of the calibration factor is not necessary.
- Page 21 (5) When the measurement is finished, enter the calibration information, and click [Calculation]. ● Enter the calibration information as needed. In the [Comments] field, use single-byte alphanumerical characters. (6) Check the calibration information and the calibration factor displayed in the [Display] area, and click [Setting].
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Page 22: Response Time Calibration
● Before measurement, remove the sensor-equipped sample container. (1) Connect the PC and the AW-1 using the USB cable. (2) Click [Calibration]-[Response Time Calibration]. (3) Set the measurement time until stabilization as well as the data storage cycle. - Page 23 (4) The first minute of measurement time is always for aging. (5) The temperature inside the sensor-equipped sample container (internal cell temperature) as well as the ambient temperature and humidity are displayed each data storage cycle. (6) When 5 minutes have passed, the measurement after 5 minutes is displayed in the measurement results field.
- Page 24 (7) When the measurement time is finished, the response time calibration value is displayed. Click [Save to Sample Cell] to save the result with the sensor-equipped sample container. To save the data, click [Save as CSV file]. Click [Back to Main Dialog] to finish. The default setting for the CSV file storage location is the “Windows →...
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Page 25: Cell Management (Management Of The Sensor-Equipped Sample Containers)
7-3 Cell Management (Management of the Sensor-Equipped Sample Containers) With this software, you can: Load and write in the previously calibrated data. Load data from and save data to the calibrated data file. Initialize the calibration data for sensor-equipped sample containers. ... - Page 26 In the [Comments] field, a note consisting of up to 16 single-byte alphanumerical characters can be stored with the sensor-equipped sample container. In the [Sample Cell Data Information] area, the water activity calibration values for each mode, as well as the measured values during response time calibration and the calibration value (elapsed time compensating value) can be checked.
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Page 27: File Management
7-4 File Management The special communications software file can be converted to CSV or printed. Previously stored data can be converted even if you are not acquiring the main unit information. Select the file to print or convert, and click [Print] or [Convert]. ●... -
Page 28: Data Logging
PC if necessary. ● In the unlikely event some sort of problem occurs, note Sibata accepts no responsibility for providing compensation for data that could not be acquired or recorded, loss of data or other content, or for any other direct or indirect damages involved. Be sure to back up data on a... - Page 29 (1) In the startup window, click [Download main unit information] to acquire the main unit information. (2) Select the information to acquire, and click [Start download]. If the row selected is highlighted in green, it is Stability mode data. If it is highlighted in blue, it is Quick (Prediction) mode data.
- Page 30 ● With Quick mode, only the final measurement result will be recorded. Enter the serial no., the measurement value, and the user name, and save the information. ● The data is saved in a special format of the special software. ●...
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Page 31: Switching The Display Language Of The Special Software
Switching the Display Language of the Special Software If the display language when the special AW-DSP software starts up is not English (the display is in Japanese), switch the display to English. (1) At the top left of the startup window, click [Language settings]. (2) Select [English]. - Page 32 (3) A “The settings will take effect after a reboot.” message will be displayed. Click [OK]. (4) Click the [x] at the top right of the window to close the application. (5) When you run the special software again, the interface will be in English. ●...
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Page 33: Repairs And Maintenance
11 Warranty If a Sibata product fails within one year from date of purchase, it will be repaired free of charge. To request repairs, be sure to directly contact the distributor where you purchased the product. -
Page 34: Specifications
12 Specifications Item Code 060990-010 Model AW-1 Measurement Targets Water activity of food products and cosmetics Water Activity 0 to 1.00 aw Ambient Temperature 0 to 80 °C Internal Temperature of Display Range the Sensor-Equipped 0 to 80 °C Sample Container... - Page 35 060990-012 Sample container, 20 mL, for AW-1, 10 pc 060990-013 Protective sensor filter, dia. 18, for AW-1, 10 pc 080990-1 USB cable + dry cell set, for chicco-iino * * The USB cable is a micro B type; the dry cells provided are 4 AAA batteries.
- Page 36 23.09.29 K (02)
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