PCE INSTRUMENTS PCE-WAM 10 Water Activity Meter Instructions

September 20, 2024
PCE Instruments

PCE-WAM 10 Water Activity Meter

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Product Information

Specifications

  • Display: 6 bit backlight LCD digital display,
    3 bit humidity aw, 3 bit temperature display

  • Sensor: Non-conductive humidity sensor

  • Sampling Time: Max. 10 minutes (Record the
    response value of the water activity meter every 5 minutes, when
    the difference between the two adjacent response values is small at
    0.01Aw, it is the measured value)

Product Usage Instructions

1. Applications & Features

The PCE-WAM 10 water activity meter is designed for measuring
the water activity of various samples, particularly foods like
vegetables. Here are some key features:

  • Sensors and readings are integrated for easy measurement.

  • Displays water activity and temperature of samples together for
    convenient analysis.

  • Includes automatic shutdown, manual shutdown function, and
    undervoltage alarm indication function for safety.

  • Offers USB data output for connecting with a PC.

  • Provides Bluetooth data output option for added
    convenience.

  • Portable design, weighing only 100 grams, making it lighter
    than a mobile phone.

2. How to Use the PCE-WAM 10 Water Activity Meter

  1. Ensure the device is powered on and ready for use.

  2. Select the sample to be measured and prepare it
    accordingly.

  3. Place the sample on the sensor area of the meter.

  4. Wait for the readings to stabilize, typically within the
    specified sampling time of up to 10 minutes.

  5. Read and record the displayed water activity and temperature
    values.

  6. If needed, use the USB or Bluetooth data output to transfer the
    results to a PC or other device for further analysis.

Frequently Asked Questions (FAQ)

Q: Can the PCE-WAM 10 be used for measuring water activity in

non-food samples?

A: While primarily designed for food applications, the water
activity meter can also be used for measuring water activity in
other non-food samples as long as they are compatible with the
sensor.

Q: What is the significance of the undervoltage alarm

indication function?

A: The undervoltage alarm indication function alerts users when
the battery voltage is low, ensuring timely replacement or
recharging to maintain accurate measurements and device
functionality.

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WATER ACTIVITY METER PCE-WAM 10

1. APPLICATIONS & FEATURES

  • The Water Activity, mainly reflects the amount of free water in the state of food balance, the stabilityof 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. By measuring the water activity of food and selecting reasonable packing and storage methods, the use of preservatives can be reduced and the shelf life of food, grain and fruits and
    vegetables can be judged.

water activity meter, with a weight of only 100 grams, lighter than a mobile phone, and a precision of 0.03 aw, easy to measure water activity anytime and anywhere.

  • Sensors and readings are integrated.

  • Easy reading, water activity and temperature of the samples displayed together.

  • It has automatic shutdown, manual shutdown function and undervoltage alarm indication function.

  • Use USB data output to connect with PC.

  • Provide Bluetooth data output choice.

  • The PCE-WAM 10 can be used to measure the water activity of foods. No matter when and where you need to measure water activity, PCE-WAM 10 water activity meter is your unique choice. This is a real portable

2. 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: ±0.03aw

1

2

Sensor: Non conductive humidity sensor Sampling Time: Max. 10 minutes (Record the response value of the water activity meter every 5 minutes, when the between the two adjacent response values is small At 0.01Aw, is the measured value.
Operating condition: Temp: 0~50°C (32~122°F) Humidity: <95%RH
Power supply: 2×1.5V AAA Um-4 Battery Size: 148x65x65mm Weight: 235g (Not including batteries) Standard Accessories

  • Main Unit Sample Plate Carrying Case Operation Manual Optional Accessories USB data output * Bluetooth data output
    3

3-1 Display 3-2 Water Activity Value 3-3 Temperature Value 3-4 Data Cable Interface 3-5 Battery Cover on the Back 3-6 Power key 3-7 Sensor
3.FRONT PANEL DESCRIPTIONS

3-1

3-2

3-5

3-3

3-4

3-6

3-7
4

4. MEASUREMENT PROCEDURE

5.3 After the adjustment, press the

4.1 Press the power key to switch on the

Power Key to quit.

power and the gauge enters the auto mode which can automatically test the water

5. READING CORRECTION

6. BATTERY REPLACEMENT

activity.

5.1 When it is necessary to correct the reading

4.2 Put the samples into the sample plate, and then cover the sensor of the gauge onto the sample plate. Lay aside for about 5 minutes, when the reading gets stable, the water activity can be obtained.

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.

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.

5.2 Then open the battery cover on the back, there are 2 small hole below the battery slot. Use a small hard bar(such as

6.1 When it is necessary to replace the battery, the battery symbol ” ” will appear on the Display.
6.2 Slide the Battery Cover ( Fig.1,) away from the instrument and remove the batteries.
6.3 Install the batteries (2×1.5vAAA UM-4) correctly into the case.
6.4 If the gauge is not to be used for any extended period, remove batteries.

screwdriver) to slightlytouch the key

inside, the correction value will be

increased or decreased. The value

increases when touching the right hole,

while the value decreases when touching

the left hole. Each time the key is touched,

the correction value changes by 0.01. The

correction value can be set from -0.14 to

0.14.

5

6

7

7.Operation procedure

0.00
Vessel dish

0.00

Container lid

0.00

Measuring chamber bottom box
1. Take out the instrument

0.00

4. Put the container dish with sample into the bottom box of the measuring chamber (do not cover the container dish).

0.78

Vessel dish
measuring room

2. Open the instrument measuring room

3.Open the container dish and put the test sample into the container dish

0.75

5. Start the instrument and combine the measuring chamber

6. for

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