How to measure the color of roofing granules

#spectrophotometer #aeros #roofinggranules Measuring Granules Color with the Aeros Spectrophotometer Introduction and Safety Welcome. This video will guide you through the correct procedure for measuring the color of roofing granules using the HunterLab Aeros Spectrophotometer. Before we begin, safety is the top priority. Be sure to follow your safety procedures and wear the required personal protection equipment while performing this procedure in the lab. Daily Standardization To ensure accuracy, the spectrophotometer must be standardized at least once every 24 hours. The software will prompt you if it's required. Begin by launching the EasyMatch QC software from the desktop. To start standardization, click the 'Standardize' button. Follow the on-screen prompts. First, the software will ask to move the sensor to the top position. Click Next. Now, locate the magnetic standardization box. Attach the box to the sensor head, then attach the black glass to the box, making sure the lines are aligned. Click Next. When prompted, remove the black glass and attach the white standard tile, again aligning the lines. Click Next. Next, When prompted, remove the white standard tile and attach the green tile again aligning the lines. Click Next. Once you see the "Standardization is completed" message, click Finish and remove the standardization box. If you get a "FAIL" message, clean the tiles and repeat the process. Weekly Green Tile Diagnostic Check At least once per week, a green tile diagnostic check must be performed to verify the instrument's performance. In the top menu, navigate to Sensor, then Diagnostics, and select 'Green Tile Test'. Follow the prompts, which will first guide you through the same black and white tile standardization we just performed. After standardization, the software will ask for the green tile. Place the green check tile under the sensor port and press OK. A PDF report will be generated showing a PASS or FAIL result. Save this report using the default file name. Sample Preparation and Measurement Now, let's measure a sample. It's critical that your granule sample is representative of the product and is at room temperature before reading. Pour the granules into the sample tray, slightly overfilling it. Next, use a tool with a straight edge to level the granules. Scrape off the excess material, creating a smooth, flat, and even surface. The granules should completely level the bottom of the tray. Place the tray onto the instrument's turntable, aligning it with the spindle. Ensure that the horizon arm indication is at 2.5 on the side scale. In the software, click the 'Read Sample' button or press the F3 key. You may be prompted to enter a Sample ID or other information. Press Enter to begin the measurement. The instrument will automatically rotate the sample and take the reading. The results are displayed on the screen and saved to the database. You can now record the reading and remove the sample. Repeat the process for any additional samples. Basic Maintenance and Troubleshooting Proper maintenance is key. Always store the calibration tiles in their protective box when not in use. The tiles can be cleaned with a soft brush, mild detergent, and water, or by carefully wiping with a lint-free towel and isopropyl alcohol. Avoid touching the surface of the tiles with your fingers. Regularly sweep away any loose granules from the turntable and surrounding area to prevent them from obstructing movement. If the software ever tells you to remove the calibration box when it's already off, it means the sensors are dirty. Clean these three areas on the sensor head with a cotton swab and alcohol. Schedule a demo now: https://www.hunterlab.com/en/products...