Difference meas. take mean value continue: measure – Hach-Lange SPECTRO COLOR d-8 User Manual

Page 19

BDA 387/2

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.

∑

Measure 2
   ΔE* =   0.41
   ΔL* =   0.39
   Δa* =  ‐0.04
   Δb* =  ‐0.12
   Mi  =   0.03