L&W Colour-Brightness software, is optimized for shift testing and has complete user interfaces for identification, measurement, and reporting. Grades with limit values and target values can be set as required. The software reports most optical characteristics. Calculations can also be implemented to meet the user’s needs.

Traceable calibration

Elrepho comes with traceable calibration in accordance with the ISO’s hierarchy for photometric calibration and UV calibration at level C and D65. Working standards and a delivery certificate are included.

The software has an easy function for checking the calibration, or making a new calibration, when necessary. A large number of reference and working standards, with target values can be stored.

Fast and easy handling of samples

Elrepho is designed to make laboratory work easier. A sample is placed on the measurement table, and then automatically positioned against the instrument’s measurement aperture. For opacity measurements, the black cavity is controlled automatically. In fact, the measurement software controls everything.

Simple measurement sequences

The software automatically measures according to the conditions specified by the user, e.g. D65 illuminant, C illuminant, or a 420 nm cut-off filter. All at the touch of a button.

Measurement results can be copied to other programs by a simple copy and paste function. Alternatively, data can be saved in an Excel-compatible file. Sample identities can be retrieved from (and measurement results sent to) other databases using standard commands and tools.

Graphic presentations

The program features a number of ways to display the results graphically. The trend diagram is used to monitor the production over a longer period, while the L*a*b* plot shows the colour coordinates for a series of samples. The reflectance curve provides important information about colour dyeing and the fluorescence of the sample.

Measures effective residual ink concentration, ”ERIC”, of recycled pulp and paper

The measurement is made on a sheet and opaque pad according to the ISO 22 754 and TAPPI T 567 standards respectively. This measurement can alternatively be made on an opaque pad only. This latter method is not standardized. An alternative is to measure the ink elimination between two process stages with the INGEDE method.

A complete system

The delivery includes Elrepho spectrophotometer, L&W Colour-Brightness software, PC, printer and the accessories necessary for checking the calibration. Elrepho comes in a standard version with a measurement table for fast sample handling, but can also be supplied without the measurement table.