This file is a user guide for HC2-AW-USB water activity and temperature probe by Rotronic AG
The Rotronic HC2-AW-USB is a digital humidity and temperature probe based on AirChip 3000 technology. It connects directly to a PC via USB to measure water activity (Aw) and temperature in liquids, pastes, powders, and solid chunks. The probe is powered by the USB port and features a red LED indicator and a power button.
| Power supply | 5 VDC (from USB port) |
|---|---|
| Humidity sensor | ROTRONIC Hygromer® WA-1 |
| Humidity measuring range | 0...100 %RH (0.000 to 1.000 aw) |
| Humidity accuracy at 23 °C | +0.8 %RH |
| Temperature sensor | Pt100 RTD, IEC 751 1/3 class B |
| Temperature measuring range | -40...85 °C (-40...185 °F) |
| Interface type | USB 2.0 |
| Cable length | 3 m (9.8 ft) |
| Weight | approx. 541 g (1 lb 3.1 oz) |
The probe requires a PC running the HW4 software Professional Edition with AwQuick, version 3.0.1 or higher.
The probe is designed strictly for PC-based water activity measurement of liquids, pastes, powders, and product in chunks.
The typical start-up time is 1.5s, and the data refresh rate is 1.0s.