How to choose the appropriate sample holder?

Applicable instrument: Spectro LFP qb

Sample holders can be exchanged quickly by releasing them with the switch on the transport arm and moving the sample holder to be ex-changed towards the operator:

Sample holder released with the switch on the transport arm and moved towards the operator

When inserting a new holder, make sure it is inserted until a click noise indicates the final and correct fixing of the sample holder.

Measuring reflective samples
Reflective materials can be measured using the supplied white back-ing reflection sample holder C5H40.

C5H40 white backing reflection sample holder supplied with the instrument

This sample holder is made of a selected white material conforming to ISO 13655-2017.
Measurements made with this sample holder are also named “white backing measurements” as recommended by the ICC (International Color Consortium) for the creation of ICC profiles and as stated in ISO 13655.
If “black backing measurements” are requested, please fix a dark sheet (density > 1.5) on this sample holder.

Note: This sample holder can be used for samples up to 150 g of weight. For heavier samples, please use the optional sample holder for heavy materials.

The sample to be measured must be fixed inside the indicated corner marks using a tape.

Electrostatic reflection sample holder

For simpler fixing of the charts to be measured, the Electrostatic sample holder C5H10 is optionally available:

Optional C5H10 electrostatic reflection sample holder

This sample holder attracts the material with electric charging.

Measuring transmissive samples
Transmissive materials must be measured using one of the following sample holders:
1) The supplied standard transmission sample holder (C5H50).

C5H50 standard transmission sample holder with its two transparent sheets

For measuring insert the sample between the two transparent sheets of the sample holder and position inside the corner marks.

2) The optional Frame transmission sample holder for M1 measurements (C5H30)

Optional C5H30 frame transmission sample holder for M1 measurements

This sample holder allows frame mounting og the color charts and assures no UV-cut filtering occurs when measuring.

Measuring special materials
For measuring special reflective or transmissive materials there is a set of 2 special sample holders available (C5H20):

Measuring heavy reflective materials
When measuring heavy reflective materials, the optional sample holder for heavy materials must be used (C5H21).

Optional C5H21 sample holder for heavy reflective materials, with two magnets and an anti-slip mat

It consists of a metallic holder with 2 magnets which are used to fix the sample. The anti-slip mat helps keep target from moving during measuring.
This sample holder can be used for samples up to 3 kg of weight. Fix the side guide and the sample holder on your instrument.

C5H21 sample holder and side guide fitted to the instrument, with the sample held by the two magnets
The target sample must be fixed with the two magnets and pushed towards the upper left corner of the sample holder.

Measuring thick transparent materials
When measuring thick transparent materials like glass or plastic plates use the sample holder C5H22. The recommended media thickness is up to 5mm. The thicker the material is, the larger must the patches be. For material of 5mm thickness the recommended patch size is 10mm.

C5H22 sample holder for thick transparent materials such as glass or plastic plates

The sample is fixed to the sample holder using a tape.

Measuring special transparent materials
When you measure transparent materials like textiles which you like to measure in transmissive mode use the sample holder C5H50.

C5H50 sample holder used to measure textiles and other special transparent materials in transmission

For measuring insert the sample between the two transparent sheets of the sample holder and position inside the corner marks.

Measuring Textiles/ Fabrics
A special electrostatic textile sample holder with frame (order code C5H80) is optionally available for fixing textile materials.

Optional C5H80 electrostatic textile sample holder with frame

If the material to be fixed is very thin, or elastic, then the chart might only be fixed distorted. In this case use the automatic target recognition option available with the “Textile edition” of the instrument in order for the software to detect correctly the center of the patches,

Automatic target recognition locating the centre of each patch on a distorted textile chart

For very difficult to fix textiles, use the sticky mat sample holder (order code C5H82).

Optional C5H82 sticky mat sample holder for textiles that are difficult to fix

Note: Do never use this sample holder without chart inserted, as the measuring head will stick on the holder when touching its surface and this could cause damages to the device

Note: the surface of this sample holder can be cleaned after use by washing it under water. Please let it fully dry before next use.

Close-up of the adhesive surface of the C5H82 sticky mat sample holder

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