Gloss meter is used to measure the gloss of various materials, such as automotive paint, stone, plastic, paper and other products, there are also many sellers of used gloss meters, and even the same brand can provide different types of used gloss meters. Many customers have great confusion about how to choose a used gloss meter during the selection process. Therefore, this article sorts out some considerations for the purchase of used gloss meter.
1) The standard board of the used gloss meter needs to be well protected
The measurement of the used gloss meter must be based on the data of the gloss standard board. If the standard board is not clean, the data obtained from the used gloss meter must be inaccurate. Moreover, the gloss of the standard board is highly susceptible to fouling, so the standard board of the used gloss meter must be well protected. The gloss meter will be equipped with a special base, and the standard board is embedded in the base to avoid contamination and scratches.
2) Used gloss meter requires standard plate self-diagnosis function
If the standard board is soiled, the gloss meter should be able to identify the stain and prompt the user to clean the standard board. If there is no judgment procedure, but the current gloss of the standard board is directly calibrated to the standard gloss, then all subsequent measurement data will be inaccurate.
3) Used gloss meter requires temperature compensation function
The principle of the gloss meter is to measure the amount of reflected light flux on the surface of the material through a light source and a receiver. If the used gloss meter has been calibrated, the change in ambient temperature will definitely cause the change of luminous efficiency of the light source, and the glossiness measurement data will inevitably be affected. Therefore, a good used gloss meter needs to have a temperature compensation function to ensure the luminous efficiency of the light source is stable.
4) Consistency and accuracy of used gloss meter
The consistency and accuracy of used gloss meter is a core technology manifestation of a manufacturer. A gloss meter that can meet the standards of a first-class working machine has certain difficulty in mass production. Some gloss meter manufacturers only meet the first-class working machine standard when propagating, but the actual use process cannot reach this standard. Therefore, before purchasing a used gloss meter, it is best to choose a gloss meter seller that can promise to pass the measurement institute.