ROTRONIC HC2-AW-USB - Manual (Page 4)

E-M-HC2-AW-USB-V1_11
Rotronic AG
Bassersdorf, Switzerland
Document code Unit
Water Activity and Temperature Probe
HC2-AW-USB: User Guide Instruction Manual
Document Type
Page 4 of 18
Document title
© 2011-2012; Rotronic AG E-M-HC2-AW-USB-V1_11
3 General description
3.1 Power supply
The HC2-AW-USB probe is directly powered from the USB port of a PC (see below). When connected to a
USB port, the probe can be powered or unpowered by pressing on the red button ON / OFF located on top of
the probe. The red LED located next to the ON / OFF button is lit when the probe is powered.
.
Nominal values of a USB port: 5 VDC, 100 mA
3.2 Measured parameters
The HC2-AW-USB probe measures water activity with a ROTRONIC Hygromer
®
capacitive sensor and
temperature with a Pt100 RTD.
3.3 Digital interface
The HC2 probe features a USB interface that allows two-way communication between a PC and the probe.
3.4 Cable and connector
The HC2-AW-USB is equipped with a hard wired cable (length: 3 m / 9.8 ft”) ended with a standard USB
connector.
3.5 Sensor protection (dust filter)
The sensors of the HC2-AW-USB probe are protected with a wire
mesh dust filter held in place by a snap-ring