Hach-Lange SPECTRO COLOR d-8 - Manual (Page 19)

BDA 387/2
20
In the print options menu you can choose to
print the graphics (reflectance curve or CIE-
L*a*b*-diagram) or the single reflectance
values.
• Go for Grf to print the graphics.
• Go for Rfl to print the single reflectance
values.
Mean value calculation
• Press the M key to select mean value
calculation.
• Place
spectro-color ® on the sample.
• Trigger measurement with the measure
button.
• From the second measurement on, the
sigma key
∑ and Cl appear.
• After pressing the Cl key, the latest
measured value is deleted.
• The ∑ key finishes the mean value
calculation and displays the result. The
standard deviation and coefficient of
variability are indicated in the print-out, too.
Mean value calculation is feasible with
reference and difference measurement.
C3.1 Reference memory (MEM)
spectro-color ® features an internal memory for reference colours to be managed with the PC-
software spectral-QC exclusively. The colorimetric values of the reference memory are
available for colour difference measurement. The memory comprises a maximum of 23
pages at 55 reference values each. The maximum length of page and reference names is 17
characters each.
Print option
Grf
Rfl
Grf: Print Graph
Rfl: Rflec. values
×
Difference meas.
Take mean value
Continue: Measure
×
Difference meas.
∑
Cl
Measure 2
ΔE* = 0.41
ΔL* = 0.39
Δa* = ‐0.04
Δb* = ‐0.12
Mi = 0.03
Ч