The TSI Alnor 8495 transducer display & monitor provides a scaleable digital display for transducers with current
or voltage outputs. The 8495 is an ideal accessory for TSI's Air Velocity Transducers, providing flexibility in
outputs while also powering the transducer.
The monitor's variable time constant controls the response time of the display. High and low alarms can indicate
readings outside of a user-defined range. These alarms can be audible, visual and/or remote via relay contacts. The
8495 also provides 500 mA of unregulated 12 V DC power to operate your transducer. The microprocessor-based design
provides flexibility through menu-driven, field selectable options including signal input, full scale reading, time
constant and alarm levels.
The adjustable full scale reading of the 8495 allows you to scale the display to fit your application. For example,
if mounting the transducer in a duct, you can select a full scale reading that includes a multiplication factor to
convert to units of volumetric flow rate or even mass flow rate. The span adjustment can be used as a density
correction factor, allowing you to correct the readings for changes in temperature or pressure. When using an air
velocity transducer in a fluctuating flow, increasing the variable time constant will provide a more stable display
of velocity or flow. If monitoring velocity or flow in a critical process application, using the high and low alarms
will indicate readings outside of an acceptable range.
