How do I average multiple readings?

How do I setup the EasyMatch QC software to average multiple readings?

The EasyMatch QC software has an option to average multiple readings and report the average as a single measurement. To use this feature it first must be configured. To do this, go to Options/Average Method. This will open the Average Method window, as shown below.

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What mode am I in and how do I change modes?

How do I know what mode my sensor is currently standardized in and how can I change modes?

The easiest way to tell what mode the instrument is using in the EasyMatch QC software is to locate the status bar in EasyMatch QC. The status bar is located at the very bottom of the software indicated in red in the picture below. This provides information about the sensor in the current mode, and when the standardization for that mode expires.

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Is there a way to change the Standardization Interval?

FAQ: “Our site requires us to standardize the instrument every 4 hours. Is there any way to change this in the EasyMatch QC software?”

The EasyMatch QC software prompts the user to Standardize the instrument ever 8 hours, this is the default setting when the software is installed. If your company requires the instrument to be standardized at a different interval, this can be changed in the EasyMatch QC software.

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How can I set up the instrument in Multi-Mode?

FAQ: “I would like to be able to read my product in Reflectance Specular Included (RSIN) mode and Reflectance Specular Excluded (RSEX) mode. Is this possible to do without manually switching modes every time?”

Yes, the EasyMatch QC software has a function called Multi Mode. Multi Mode is set up so the instrument can standardize and read in two separate but similar modes. Continue reading

Source for the APHA/Pt-Co/Hazen Color Standards

These APHA/Pt-Co/Hazen liquid color standards were originally developed as references for visual APHA/Pt-Co/Hazen Color comparison to samples. Their role with instrumental APHA/Pt-Co/Hazen Color measurement is primarily as a performance qualification check of the instrument prior to measuring liquid product samples, or to validate the instrumental-to-visual correlation.

HunterLab instruments have their own internal diagnostic standards to verify instrument performance. Measurement verification on these liquid color standards serves as an application diagnostic, affirming that the instrument has been configured correctly and is reading APHA/Pt-Co/Hazen color in the range of the samples closely and consistently over time.

There are many suppliers of  APHA/Pt-Co/Hazen liquid color standards. Just make sure that their liquid color standards conform to ASTM D1209. Also some APHA/Pt-Co/Hazen color standards come in a small volumes sealed in glass intended for visual comparison purposes rather than instrumental measurement.

Typically a client orders a Platinum Cobalt 500 Color Standard and mixes it down to intermediate levels such as an APHA/Pt-Co/Hazen 30 that are close to the product color.

While there are other industry test methods that reference the Platinum Cobalt 500 Color Standard Solution, also known as APHA/Pt-Co/Hazen Color Standard, preparation of the liquid standard is best defined in ASTM D1209 Standard Test Method for Color of Clear Liquids (Platinum Cobalt Scale). Instruction for preparing intermediate APHA/Pt-Co/Hazen standards below 500 by dilution is found in ASTM D1209 Table 1. This method also provides advice on how best to perform visual comparisons to these liquid color standards.

Sources for Liquid APHA/Pt-Co/Hazen Color Standards

Ricca Chemical Company, Arlington, TX 76094 USA +817-461-5601 www.riccachemical.com can be ordered through Fisher Scientific www.fishersci.com with worldwide distribution (search under Analytical Reagents for “Color Standard APHA/Hazen” conforming to ASTM D1209).

RICCA manufactures the liquid APHA/Pt-Co/Hazen 500 Color Standard, as will also prepare the intermediate standards, and certify them. They also sell a liquid APHA/Pt-Co/Hazen 1000 Color Standard for rare cases where the product color exceeds 500.

Fluka Analytical of Sigma-Aldrich, St. Louis, MO 63178 USA with worldwide distribution www.sigmaaldrich.com (search on “APHA” or “Pt-Co”).

Fluka sells the 500 Color Standard along with sets (2 ml and 10ml) for 20 different intermediate APHA/Pt-Co/Hazen standards, sealed in vials and intended for visual comparison.

Paragon Scientific Ltd., Prenton, Wirral CH43 3DU, United Kingdom+44 (0)151 649 9955 www.paragon-sci.com

Paragon is a European supplier of APHA/Pt-Co/Hazen color standards (fixed 5, 10. 15, 30, 50, 100, 500 color standards only with certification). Please note that Paragon  offers an APHA/Pt-Co/Hazen color standard that represents 0. As this is just certified distilled water, purchase is not recommended.

Reagecon Diagnostics Limited, Shannon Free Zone, County Clare, Ireland +353 61 47 26 22 www.reagecon.com

Reagecon is a European supplier of APHA/Pt-Co/Hazen, Gardner, Saybolt and ASTM D1500 liquid color standards in accordance with ASTM D1209, ASTM D6166 and ASTM D6045 methods.

Hach UK, Salford M50 1DL UK +0161 872 1487 http://uk.hach.com  

Hach bought Dr. Lange (Germany) and with it got their LICO color measurement instruments that include measuring APHA/Pt-Co/Hazen and Gardner Color. Dr. Lange also had a side business of supplying liquid color standards for instrument performance qualification. Hach UK has picked this business up in Europe.

The ADDISTA Colour Set of 6 certified standard colour solutions for LICO (LZM282 consists of 3×50 ml APHA/Pt-Co/Hazen liquid color standards (levels of 20, 100, 200) and 3×50 ml Gardner liquid color standards (levels of 2, 5, 8).

Our EasyMatch QC software has a built-in 10 mm correlation for measuring both APHA/Pt-Co/Hazen and Gardner Color simultaneously on the same sample with the 10 mm cell path length filled with distilled water being APHA/Pt-Co/Hazen and Gardner = 0, representing no color.

 

How can I change the Green Tile Values in EasyMatch QC?

My green tile values are not correct in the EasyMatch QC software. How can I change them?

To edit the existing green tile values for your instrument in EasyMatch QC go to Sensor/ Diagnostics/ Green Tile Test. An EasyMatch QC window will open that prompts you to install the standard port plate. (The standard port plate is the one with the largest area view possible for your instrument.)

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How do I get a new EasyMatch hardware key and driver?

EasyMatch QC+ER hardware key will have a “HunterLab” label on it to distinguish it from a regular USB flash drive.

Operation of HunterLab EasyMatch QC and EasyMatch QC-ER software requires a USB hardware key to operate the software with all of our sensors. It is rare to have any operational issues with this key but here are the most common frequently asked questions. Continue reading

How can we export data from EasyMatch QC?

FAQ: “We would like to access data outside the EasyMatch QC software. How can we export data from EasyMatch QC?”

In EasyMatch QC, we have an ASCII Export and Data Send features that can be set up to manually (batch export) or automatically (every new measurement) export to a file, COM port or IP address. The user can configure the data they want to send out of EasyMatch in ASCII characters with the delimiter symbol chosen for separation of the data pieces. They can then configure and parse their LIMs data collection system to bring the data format in.

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