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[January 2003]
ABLE Claims New Standard in Primary Humidity Measurement
ABLE Instruments & Controls Ltd (Lower Earley, Reading, England) says that the release of its new Optica series sees it stretching the capabilities of chilled mirror still further whilst simultaneously creating a hygrometer compatible with the requirements of tomorrow.
The company says that Optica chilled mirror hygrometers advance the functionality of precision humidity reference instruments by offering data logging and Ethernet connectivity. Users can access recorded data and menus for set-up parameters and diagnostics via the internet or intranet using standard browsers. Essentially, this allows users to view both system configuration and their process from any location in the world. Consequently, says ABLE, networking is dramatically reduced making communication inexpensive and far more flexible.
Available in benchtop, rack mount or wall mounted configurations, these units feature a bright VGA display, analogue and digital outputs as well as self-diagnostics and a user friendly interface. The instruments provide primary fundamental humidity measurement in terms of dew point temperature by using optical feedback to control a rhodium or platinum mirror to equilibrium where the mass of frost or dew is constant. The temperature of the mirror is then measured by a precise platinum RTD.
The Optica monitor also interfaces with existing ABLE chilled mirror temperature and pressure sensors to provide readout and data acquisition of any humidity parameter. These hygrometers provide a range of minus 80°C to plus 85°C dew point via a choice of four interchangeable chilled mirror sensors with accuracy of ±0.15°C.
ENDS