Measure the water activity of any sample with the first
water activity sensor completely unaffected by volatiles.
Anyone, from a technician in the lab to an operator at the line,
can measure water activity in 5 minutes or less to 0.005
aw
How It Works
Put a 7.5 ml product sample in a disposable cup, seal the sample
chamber lid over the sample, and wait for vapour equilibrium. At
equilibrium, the relative humidity of the air in the sample chamber
is equal to the water activity of the sample.
- Fast - water activity readings in about 2 minutes
- Accurate: ±0.005 aw
- Accurately read any sample, including those with volatiles
- Verifiable with independent salt standards
- Repeatable - different users, different locations, same
result
- Portable - weighs just 7 pounds
- Easy to use - precise aw readings with minimal training
- Secure - offers administrative control over calibration and
data
Tunable Diode Laser Sensor
The Aqualab TDL's sensor measures the relative humidity of the
air in the sample chamber by emitting a finely-tuned infrared laser
beam across the headspace above the sample. Because water vapour
has strong absorption bands in the near infrared (NIR), the sensor
can measure the presence of water vapour in the headspace very
precisely.
Unaffected by Volatiles
The beam of the laser, which is less than one nanometer wide, is
specific for the commonly occurring isotope of water. Other vapour
molecules, even those from different isotopes of water do not
affect the reading.
Read Any Sample
The sensor is powerful enough to measure the water activity of
previously impossible to measure samples, including soy sauce,
ethanol and even gasoline.
Secure Data
AquaLab TDL stores time, date and user information with every
measurement and calibration and can store up to 8,000 secure data
points. Set up to 25 unique users and passwords to control access
to data.
Use AquaLink software to maintain
compliance records and archives, do statistical analysis and print
reports for customers and decision-makers.
| Specifications |
| Measurement Range |
Water Activity 0.030 to 1.000 |
| Resolution |
+/- 0.0001 |
| Accuracy |
+/- 0.005 |
| Sample Time |
Less than 5 Mins |
| Sample Size |
Up to 14 ml |
| Sample Type |
Powder, Liquid or Solid |
| Sample Temperature Control |
15°C to 50 °C +/- 0.2°C |
| Output |
Download direct to PC |
| Input |
Mains 110/240 VAC |
| Sensor Type |
Tunable Diode Laser |
| Warranty |
1 year parts and labour |
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Labcell Limited
exclusively supply and support METER products in the UK &
Ireland.
Non UK/Ireland Customers, please contact Meter Food at: https://www.metergroup.com/food
Robust, Easy to Clean
The sensor has no moving parts, and is housed in fully-sealed
sample chamber. The clamshell lid offers easy access to all parts
of the sample chamber for cleaning.
Use (Almost) Anywhere
Water activity is temperature dependent. Internal temperature
control lets you set a measuring temperature between 15° and 50°
and use the instrument anywhere, even outside a climate-controlled
facility.
Use the Aqualab TDL to get lab-quality water activity
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.
Email us to request a quotation for the
Aqualab TDL
