Malvern Instruments Spraytec, User Manual

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This is a summary of the SOP or manual measurement settings. After summary
information on the spray date and timing, the following sections appear.
Standard Values
These are the standard values described in Chapter 2.
Measurement Values and Settings
This section summarises significant settings used for the measurement, including:
.
Particulate Refractive Index , Media Refractive Index and Particle
Density – these are optical properties specified by the user; they are de-
scribed in Chapter 10.
.
Residual – this gives an indication of how well the optical model was fitted
to the measurement data when calculating the spray droplet size.
.
Path Length – this is the estimated length of the sample field that is mea-
sured; see Chapter 10. This is the length of the part of the laser beam which
passes through the spray plume.
.
Scatter start , Scatter end – these show the range of detectors used.
.
Minimum size , Maximum size – these show the range of particle sizes
included.
.
Multiple scatter – whether the multiple scattering algorithm was used.
Other sections
The remaining sections are:
.
Identification – this identifies the operator and the Spraytec hardware.
.
Rapid Measurement – this describes the trigger setup.
.
Spray properties – these parameters are described in detail in the spray
profile section in Chapter 10.
.
BL , BD – this text may appear at the end of the parameter list, indicating a
problem as follows:
BD (Background Dark) – this is probably caused by excessive light reaching
the instrument.
BL (Background Light) – this usually indicates a dirty window or
misalignment.
These are described in more detail in Chapter 8.
C H A P T E R 6
S p r a y t e c
P a g e 6 . 1 1