Doc. No. 06EN003291 Rev. A
B - 3
Model ST98 Flow Meter
APPENDIX B - GLOSSARY
FLUID COMPONENTS INTL
applications. Minimum flow is for non-zero based applications.
Sensor
This lets the user know what resistance is being used for the RTD's. A 2
indicates a 1K ohm resistance.
Tslp
Slope coefficient for the temperature equation. Caltemp = (Ref R)(tslp + Toff)
Refr
Abbreviation for Reference Resistance.
Caltemp
Temperature at calibration. Caltemp = (Ref R)(tslp) + toff
Toff
Temperature offset.
Tcslp
The second slope coefficient for the temperature compensation equation.
Tcslp0
The third slope coefficient for the temperature compensation equation.
Tcslp2
The first slope coefficient for the temperature compensation equation.
Maxflow
Maximum calibrated flow in Standard Feet Per Second (SFPS).
Minflow
Minimum calibrated flow in Standard Feet Per Second (SFPS).
Density
The molecular weight of media is entered here. The software back calculates to the
standard density of the media which is used when converting from mass to
volumetric units.
M' = r • Q.
M' = Mass Flow Rate
r = Density
Q = Volumetric Flow Rate.
Line size0
This field indicates the diameter of a round duct or the length of a rectangular duct.
The shape of the duct is dependent on the next field.
Line size1
This field indicates the width of a rectangular duct if it contains a value greater than
zero. If the value is zero, then it indicates a round duct.
F.S.
This is the full scale value, in customer units, which gives the maximum output
signal (20mA, 5 VDC, or 10 VDC).
E. SENSOR CURRENT
SELECT
Menu Function.
Sensor Current Select
2.0 ma - 1k ohm is always displayed.
F. K-FACTOR
Menu Function.
K.F.
An abbreviation for K-Factor. A factor the user can input to modify the final flow
reading from the calibrated flow rate.
G. EEPROM
Menu Function.
EEPROM
Only the factory has access to this area.
H. HEATER
Menu Function.
Heater Off
The user can turn the heater off.
Heater On
The user can turn the heater on.
I. OUTPUT CURRENT
ADJUST
Menu Function.
Enter #
Entering a number (0-1000) will force the output to a corresponding level.
DAC
Digital to Analog Converter number corresponds to output level.
J. SERIAL NUMBER,
CUSTOMER ORDER