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Fluid Components International ST98 Manual Glossary User Manual

Page 3

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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