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Related Manuals for LaMotte Water Link Spin Touch CW
Summary of Contents for LaMotte Water Link Spin Touch CW
- Page 1 9 Tests in 60 Seconds!
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Page 2: Frequently Asked Questions (Faq)
How does the Spin Touch® meter work? The LaMotte Spin Touch® Photometer is a colorimeter that uses centrifugal fluidics photometry. This just means that it spins a test disk, with prefilled reagents, to fill specific test cells, and then uses several light sources to test the color changes in those cells. - Page 3 For example, the drop count titration method you are used to may be +/-20% in accuracy. Where the Spin Touch® meter is also +/-15% accurate. This means you may see a range that differs from other method’s results. Or a specific chemical may not interfere with one test, but interferes now with the Spin Touch®...
- Page 4 What are the common interferences in cooling water with the Spin Disks? In cooling waters, there are some common interferences that can affect specific tests. Iron, manganese or zinc can affect the hardness test, as it can interfere with the test indicators. There are ways to adjust the firmware to help account for this.
- Page 5 Cooling Water Disk Color Guide Contains: Disk images with labels Images of normal reagent colors Images of common problems Below is a typical spin disk with numbers and parts labeled. chamber Distribution channel Fill chamber D- Shaped hole Total Iron with white bead Over flow chamber Blank chamber BBs (mixing balls) are small metal balls that mix the reagent and are located in each...
- Page 6 The diagram for a 4339 (cooling water) disk is shown below. Each chamber is numbered, so chamber 1 is free chlorine; chamber 2 is Alkalinity, etc. This is an example of a cooling tower disk after spin out, the colors in the wells determine the readings. AquaPhoenix Scientific –...
- Page 7 Cooling water, 4339, disk unspun, upside down: The color in the wells is the dried reagent ready for testing and is normal of an unused disk. Calcium Hardness, chamber 4 Total Iron bead, chamber 9 Blank chamber Dry pH reagent, chamber How to read a disk lot number and other disk foil information: Series...
- Page 8 Reagent Color Guide Free Chlorine/ Bromine – Well 1 Colorless Very low Medium High Alkalinity – Well 2 No alkalinty–Yellow low-lime green Medium-green High- blue The alkalinity reagent well of a spun disk should never be colorless. Copper - Well 3 Colorless Medium High...
- Page 9 Low Range Total Hardness – Well 5 Colorless Very low High High Range Total Hardness – Well 6 Colorless Very low Medium High Total Chlorine – Well 7 Colorless Very Low Medium High Well 8- Empty Iron – Well 9 Colorless Medium High...
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Page 10: Potential Problems
Potential Problems Customer reports Alkalinity readings of 0 ppm: Have the customer check the color of the reagent and send an image of a spun disk to customer support. If the reagent is yellow, the reading of 0 ppm alk is likely accurate and the customer should check the cooling water. - Page 11 Missing reagent BB / reagent not mixing: This will cause very erratic or inaccurate readings Occasionally the Ca-only (chamber 6) will have BB’s stuck in the reagent. Usually when a disk was missing dessicant or got very hot before testing. Hub wear: A new hub (left) will have sharp, shiny edges.