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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 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. 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.
* 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
1 2 3
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.
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
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: 2x1.5V 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
3-1 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
3-3
3-4
3-5
3-6
3-7
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4. MEASUREMENT 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 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.
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.
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5.3 After the adjustment, press the
Power Key
5. READING CORRECTION
5.1 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.
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
screwdriver) to slightly touch 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.
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to quit.
6. BATTERY REPLACEMENT
6.1 When it is necessary to replace the
battery, the battery symbol “ ”
appear on the Display.
will
6.2 Slide the Battery Cover ( Fig.1,) away
from the instrument and remove the
batteries.
6.3 Install the batteries (2x1.5vAAA UM-4)
correctly into the case.
6.4 If the gauge is not to be used for any
extended period, remove batteries.
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7.Operation procedure
0.00
Vessel dish
0.00
0.00
Container lid
0.00
4. Put the container
dish with sample
into the bottom box
of the measuring
chamber (do not
cover the container
dish).
Measuring
chamber
bottom box
1. Take out the instrument
0.78
Vessel dish
mea s ur ing ro o m
2. Open the instrument
measuring room
0.75
3.Open the container dish
and put the test sample
into the container dish
5. Start the instrument
and combine the measuring
chamber
6. Let the device measure
for about 5 minutes.
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