rotronic AwEasy Bluetooth Water Activity Measurement Head Instruction Manual
- June 5, 2024
- ROTRONIC
Table of Contents
rotronic AwEasy Bluetooth Water Activity Measurement Head
GENERAL DESCRIPTION
The AwEasy is a standalone measurement head for water activity and temperature. It can be operated as a standalone device together with the free
AwEasy App for Android and iOS
For more information please visit www.processsensing.com or www.rotronic.com or scan the QR code (also on the measurement head), which gives you direct access to the Rotronic Online Manual with further explanations.
MEASUREMENT ARRANGEMENT
The whole measuring system, probe + sample cup + sample, adapts to the ambient
temperature.
STARTING THE MEASUREMENT
Please go to the App Store (iOS) or the Play Store (Android) and download the
AwEasy App. After the installation of the AwEasy App you can then start the
application and add the AwEasy measurement head to your devices.
For that go into Measurements and click on the top right the “+” to add a new
AwEasy device.
The App will automatically search for the AwEasy measurement head.
As soon as the measurement head is connected it will be shown in the Probes overview with a green arrow on the left side. If there is no active connection with the measurement head, it will be shown as disconnected (with no green arrow). To start a measurement click on the specific connected measurement head and click on the bottom of the measurement overview the Add new measurement button.
After that, the Measurement Settings menu will open. To start a new
measurement it needs to be filled out at least the Measurement Name and the
Batch Number. Content and Notes are optional for the measurement. Finally, the
measurement method has to be chosen. Rotronic recommends for the AWQ
measurement a dwell time of at least 4 minutes and temperature stability of
0.1°C/min. For the standard AWE measurement Rotronic recommends an AW
stability of 0.0001 aw/min and temperature stability of 0.01°C: Optional it is
also possible to set an AW Setpoint. After setting the Measurement Settings it
is then possible to start the measurement by clicking the Start button. As
soon as the measurement starts a moving green line will appear and the Start
button will change to Stop (to stop the current measurement).
GENERAL GUIDELINES
To make accurate and reproducible measurements, follow the following general guidelines to measure water activity:
- Measure water activity only in rooms with constant temperature; Ideal are rooms with small daily and yearly temperature variations. Avoid heating the measuring equipment by sun radiation or radiators, draught, body radiation, etc.
- Put the samples into the disposable sample cup and put the lid on it. The probe and the sample must stay in the same room for acclimation (normally room temperature). An error, which occurs very often in the field is putting the sample a night before the measurement will be done into the fridge without acclimation. Another error is to measure a sample that comes directly from production. Use a climate camber to measure water activity on another temperature, then the ambient temperature. Set the desired temperature and put the probe and sample into it.
- Avoid warming up the probe and sample through body heat. Do not hold it too long in your hands.
SAMPLE CUP
Put the sample into the sample cup
To avoid cross-contamination do not fill more than up to the fill line
.
Put the probe immediately on the sample cup after having filled in the sample to avoid humidity exchange with the ambient. The measurement time may vary depending on the probe. humidity and temperature value are ready to read when the values are stable for at least 1-2 minutes. devices with trend indicators will show a stable value with two arrows.
DIMENSIONS
TECHNICAL DATA
| Sensor | HYGROMER WA-1 |
|---|---|
| Accuracy @ 23 ±5 °C | ± 0.008 aw / 0.8 %rh / ±0.1 K |
| Operating conditions | 0…70°C / 0…100%rh |
| Storage conditions | -10…70°C / 0…100%rh |
| Long-term stability | < 1 %rh / year (normal conditions) |
| Parameters shown | aw, %rh, °C, °F |
| Status light | Yes |
| AW Quick Mode | Yes |
| Display | 1.2” LCD color display |
| Button | Multifunctional touch button |
| Trend display | Yes |
| Clock | Real time clock provides a time |
| stamp for every measurement | |
| Batterie capacity | 500 mAh |
| Power supply | 5 V DC 1.5A 7.5 W max (AC adapter) |
| Power supply plugs | US / EU & UK |
| USB cable | USB-A to USB-C |
| Firmware update | Direct over the App |
| Protocols (values) | Date, time, aw / rh / °C / °F, aw setpoint, serial no., |
etc.
HW5 and HygroLab compatibility| No
Acoustic alarm| No
Calculations| No psychrometric calculations are available
Dimensions| Ø68 x 65 mm
Housing material| Aluminum, stainless steel & PC
Weight| 600 g
CE conform| CE 2014/30/EU
IP protection rating| IP65