V E R I C O L O R
®
S P E C T R O
9
Height Insensitivity
Vericolor Spectro can tolerate
variation in depth of the
measurement distance of +/- 0.25
”
.
This means that if the sample being
measured fluctuates up and down
by no more than +/-0.25
”
, the
measurement will not be affected
beyond specified tolerances (refer
to the Specifications in the
Appendix). Any more than +/- 0.25
”
it is suggested that the sample
being measured be stabilized to
prevent the variation in the
measurement distance.
Measurement Angle
It is important when installing the
instrument in-line that the geometry and
axis angle be set appropriately. The
instrument can be set at a 0
°
/30
°
illumination or 30
°
/0
°
illumination (see
illustrations on previous page). The 0
°
/30
°
position is preferred for best repeatability
and correlation to an X-Rite 964 or similar
hand held spectrophotometer. Other angles
may be used (example 7.5/37.5) but care
must be taken to avoid sensing specular
reflections from the illuminator. Once the
instrument has been trained on a sample in
the preferred position, it is critical that
future samples be measured for comparison
against the standard at the same
measurement angle. Any deviation in the
measurement angle (called off axis
measurement) will affect the color reading
and indicate a fail condition, when in fact
the sample might be completely within the
specified tolerance range.
It is preferred that the instruments
mounting plane be as close to 90° to
sample plane as possible.
It is recommended that once the mounting angle of measurement is determined, the
instrument fixed position should be marked or documented. This will allow you to more easily
reposition the instrument to the original and correct position when measuring that sample
profile and color.
4.25"
3.75"
90°
Sample Part
Sample Part
Sample Part
Summary of Contents for VeriColor Spectro
Page 1: ...VeriColor Spectro Non Contact Spectrophotometer Setup and Operator Manual ...
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Page 25: ...V E R I C O L O R S P E C T R O 25 SAMPLE LOG REPORT ...
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