Thermo Scientific DensityPRO NAI Series, Руководство пользователя

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Density Calculation
Temperature Compensated Density
C-34 DensityPRO User Manual Thermo Scientific
The parameters below are used to calculate the density of a solution material.
– Constants

G: Geometry factor (Default = 0.85) – The geometry factor does not have any
units. It is used to correct for the location of the source relative to the detector
with different source heads and mounting configurations. History has
determined that this value can be a constant.
– User Inputs

T: Pipe ID – The inside diameter of the pipe converted from user-selected
units to centimeters.

Dc@ref – The density of the carrier, solvent, or fluid 1 at the reference
temperature.

µc – The attenuation coefficient of the carrier, solvent or fluid 1.

Ds@ref – The density of the solid, solute, or fluid 2 at the reference
temperature.

µs – The attenuation coefficient of the solid, solute, or fluid 2.

Ibkg – Background radiation at the detector in counts per second (CPS)

Dstd@ref – The density of the process material at the reference temperature
when standardizing on process.

Dcal1@ref – The density of the process material at the reference temperature
during calibration of point 1.

Dcal2@ref – The density of the process material at the reference temperature
during calibration of point 2.

Tref – Reference temperature

A1, B1, C1 – Coefficients of the carrier, solvent or fluid 1characterization
polynomial.

Temperature Input Source – The user selects how the process temperature is
provided to the system.

Not Used – Temperature compensation is disabled. This is the default
selection.

Manual Value – The user will provide a fixed value for the process
temperature.

Detector RTD Input – The process temperature is measured using the RTD
connected to the detector.

Detector 4-20mA Input – The user will configure the 4-20mA input on the
detector to provide the process temperature.