Fluid Components International MT91 Manual Glossary - Manual (Page 2)

FLUID COMPONENTS INTL APPENDIX B - GLOSSARY
Model MT91 Multipoint Flowmeter B - 2 Doc. No. 003185 Rev. B
Port [1] Channel 1 for output signal. Port [2] corresponds to Channel 2.
RTD A Resistance Temperature Detector operates on the principle of change in
resistance as a function of temperature.
Span Span is the full scale value minus the minimum flow value.
Standard Density Standard Density is the density of media (customer’s original request) at standard
conditions usually at 14.7 PSIA and 70°F: used by firmware for conversion when
a mass flow rate unit is chosen such as LB/HR etc.
Sensing Point The Sensing Points contain the four thermowells that house the resistance
temperature detectors and the heater.
D D D D D R The difference between two resistance values.
D D D D D T The difference between two temperature values.
Unipolar Allows users to view only positive values for D R.
Zero 0.00 for zero based applications. For non-zero based applications the zero is at
minimum flow.