Chat with us, powered by LiveChat

Rotronic AwTherm Water Acitivity Meter

condition: Brand NewPart #: RO-AwTherm-SetAvailability: Ships within 1-2 weeks
Request Quote

Temperature-Stabilized Measurement
With AwTherm, ROTRONIC offers a professional, high-end laboratory unit for temperature-stabilized measurement of water activity in the foodstuffs, cosmetics, or pharmaceutical industries. The wide control range permits measurements to be integrated directly in the tempered manufacturing or storage process. Water-activity measurement reacts very sensitively to variances in temperature. Stabilizing the temperature prevents imprecise results due to external temperature influences.

Exchangeable Measuring Head
A further advantage of AwTherm is that the measuring head is removable, which means that the probe can be temperature-calibrated or adjusted to give high precision.

The AwTherm shows its paces in island-operation mode, with its simple handling and clarity. No laboratory should be without the device in conjunction with the ROTRONIC HW4 software

Why Measure Water Activity?
The free water in a product influences its microbiological, chemical and enzymatic stability. If there is too much free water present, the products spoil; too little water can be detrimental to the product characteristics.

Water Activity                   Contaminants
aw = 0.91..0.95                      Many bacteria
aw = 0.88                               Many yeasts
aw = 0.80                               Many mildews
aw = 0.75                               Halophile bacteria
aw = 0.70                               Osmiophile yeasts
aw = 0.65                               Xerophile mildew

Measuring water activity provides useful information about characteristics such as cohesion, storage lifetime, clotting or pourability of powders, tablets, etc., or the adhesive properties of coatings.

  • Highest precision through exact stabilization of temperature
  • Wide temperature-control range
  • Excellent reproducibility
  • Excellent long-term stability
  • Variable size of sample container
  • Reference probe exchangeable for calibration or cleaning
  • Quickest measurements with the AwQuick function
  • Simple operation via Touch Interface
  • Conforms to ISO 21807 / EMC 2008/108/EC / IEC EN 61010-1:20103
  • Includes:
    USB Cable, 1.8m, type A-B
    PS14 – 100 disposable sample cups, 14mm deep (0.55″)
    PS40 – 100 disposable sample cups, 40mm deep (1.57″)
    HW4-P-QUICK – Software and USB connecting cable to PC
    EA00 – Humidity Standard 0.5%RH (Five vials per box)
    EA10 – Humidity Standard 10%RH (Five vials per box)
    EA35 – Humidity Standard 35%RH (Five vials per box)
    EA80 – Humidity Standard 80%RH (Five vials per box)
    AC1211 AC power adapter 100-240 VAC / 12 VDC
Your product has been sucessfully added to the wishlist.
Name: Rotronic AwTherm Water Acitivity Meter
Quantity: 1
Cart Total:
Product has been added to your shopping cart.
Name: Rotronic AwTherm Water Acitivity Meter
Quantity: 1
Cart Total:

Create an Account

Already have an account? Login