AQUAfast AQ4500 Turbidimeter
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Catalog excerpts

AQUAfast AQ4500 Turbidimeter - 1

Thermo Scientific Orion

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AQUAfast AQ4500 Turbidimeter - 2

ROSS and the COIL trade dress are trademarks of Thermo Fisher Scientific Inc. U.S. patent 6,793,787. AQUAfast, Cahn, ionplus, KNIpHE, No Cal, ORION, perpHect, PerpHecT, PerpHecTion, pHISA, pHuture, Pure Water, Sage, Sensing the Future, SensorLink, ROSS, ROSS Ultra, Sure-Flow, Titrator PLUS and TURBO2 are registered trademarks of Thermo Fisher. 1-888-pHAX-ION, A+, All in One, Aplus, AQUAsnap, AssuredAccuracy, AUTO-BAR, AUTO-CAL, AUTO DISPENSER, Auto-ID, AUTO-LOG, AUTO-READ, AUTO-STIR, Auto-Test, BOD AutoEZ, Cable-Free, CERTI-CAL, CISA, DataCOLLECT, DataPLUS, digital LogR, DirectCal,...

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AQUAfast AQ4500 Turbidimeter - 3

Table of Contents Chapter 1 Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Principle of Operation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Display . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Keypad . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Meter Setup . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Battery Installation . . ....

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AQUAfast AQ4500 Turbidimeter - 4

Functions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 25 Log Functions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 25 Average Functions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 26 Use with Printers and Computers . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 27 Data Transmission Settings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 27 Customer Services . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ....

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AQUAfast AQ4500 Turbidimeter - 5

The AQUAfast AQ4500 turbidimeter is the most advanced portable microprocessor based LED turbidimeter on the market today. The AQ4500 turbidimeter operates on the nephelometric and ratiometric principles of turbidity measurement. The AQ4500 turbidimeter allows turbidity measurement based on EPA 180.1 and ISO 7027 as well as an infrared ratio (IR ratio) mode that gives results in accordance with EPA GLI method 2. The AQ4500 also allows the user to make measurements based on percent transmittance (%T), American Society of Brewing Chemists (ASBC) units or European Brewing Chemists (EBC) units....

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Figure 1 Pure Nephelometric Turbidity Measurement without Color Compensation Nephelometric turbidity is measured by determining the sidewardscattered light intensity. A light beam is passed through the flow cell and the scattered light produced by the solid particles (turbidity) is detected at a specific angle. This measurement method ignores the light that passes straight through the cell. Light Detector IR LED Emitted Light If the medium contains absorbent substances (such as colored constituents), these can easily attenuate the light beam by factors ranging from 2 to 10 and thus falsify...

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AQUAfast AQ4500 Turbidimeter - 7

Icon lit while AQ4500 is in calibration mode Icon lit while AQ4500 is in setup mode Icon lit during measurement Icon lit while AQ4500 performs zero Icons for units of measurement Icon lit when AQ4500 prompts a question Icon lit while timer is active Icon lit when battery in AQ4500 is low Icon lit during print function Alphanumeric display Numeric display Thermo Scientific Orion AQUAfast AQ4500 Turbidimeter User Guide

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Initiates print mode or inputs number 0 Confirms an answer or inputs a decimal point Allows selection of measurement units or inputs number 1 Initiates log mode or inputs number 2 Scrolls down, answers “NO” or inputs number 3 Initiates Average mode or inputs number 4 Displays Time/Date and Stopwatch or inputs number 5 Scroll ups, answers “NO” or inputs number 6 Initiates Setup function or inputs number 7 Initiates a calibration or inputs number 8 Initiates a measurement or inputs number 9 Thermo Scientific Orion AQUAfast AQ4500 Turbidimeter User Guide

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AQUAfast AQ4500 Turbidimeter - 9

Battery Installation Meter Setup The AQ4500 turbidimeter requires 4 AA alkaline or lithium batteries. With 4 alkaline batteries, the expected life is 2,500 hours. With lithium batteries the expected life is 10,000 hours. To install batteries, carefully loosen the two captive screws on the bottom of the battery cover. Remove the cover and insert batteries as shown in Figure 5. Replace battery cover and tighten captive screws. Figure 5 Battery Installation The AQ4500 has an auto-shutoff feature to conserve battery life. The auto-shutoff will turn the turbidimeter off if no keys have been...

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Vial Cover The vial cover serves two functions; first, it keeps the optical well covered so water, dirt and dust do not enter the well. Second, it covers the vial during measurement to prevent stray light from affecting the measurement. When the vial cover is installed and screwed down the AQ4500 is waterproof to IP67 standards. The vial cover can be used in two ways. First for measurement when the waterproof integrity of the meter is important, place the vial cover over the vial and screw down as shown in Figure 6. To remove, unscrew and lift up. If using turbidimeter in a lab where...

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During measurement it is important to place the vial into the AQ4500 aligning the white triangle (s) on the vial with the tab on the turbidimeter. See Figure 8 aligning vial with tab on turbidimeter. Figure 8 Thermo Scientific Orion AQUAfast AQ4500 Turbidimeter User Guide

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The AQ4500 has a bidirectional RS232 port located on the underside of the turbidimeter. See Figure 9. To connect the AQ4500 to a printer or computer, use the optional RS232 cable, Cat. No. AQ4CBL. See the Use With Printers and Computers section. Figure 9 AQ4500 RS232 Cable Connection Thermo Scientific Orion AQUAfast AQ4500 Turbidimeter User Guide

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Chapter 3 Setup Menu Setup The setup key allows the user to access all the user selectable functions in Cal Chek Allows the user to confirm the time and date of the last calibration forthe measurement mode selected. Clock Allows the user to set the date and time. Set Baud Allows the user to set the baud rate for the meter when using it with a printer or computer. Print Allows the user to set the print out format. Auto Print Allows the user to set the turbidimeter to automatically print each measurement. Digits Allows the userto selectthe number of significant digits to be Battery Allows the...

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