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Summary of Contents for Hanna Instruments HI 95724C
- Page 1 Instruction Manual HI 95724C Free & Total Chlorine This Instrument is in w w w . h a n n a i n s t . c o m Compliance with the CE Directives...
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Page 2: Table Of Contents
CE DECLARATION OF CONFORMITY ...................21 HANNA LITERATURE ......................22 USER NOTES ......................... 23 All rights are reserved. Reproduction in whole or in part is prohibited without the written consent of the copyright owner, Hanna Instruments Inc., Woonsocket, Rhode Island, 02895 , USA. -
Page 3: Preliminary Examination
HANNA LITERATURE PRELIMINARY EXAMINATION Please examine this product carefully. Make sure that the instrument is not damaged. If any Hanna publishes a wide range of catalogs and handbooks for an equally wide range of damage occured during shipment, please notify your Dealer. applications. -
Page 4: General Description
GENERAL DESCRIPTION CE DECLARATION OF CONFORMITY The HI 95724 is an auto diagnostic portable microprocessor meter that benefits from Hanna’s years of experience as a manufacturer of analytical instruments. It has the advanced optical system based on a special tungsten lamp and a narrow band interference filter that allows most accurate and repeatable readings. -
Page 5: Specifications
Method Adaptation of the USEPA method 330.5 and Standard Method 4500-Cl G. If the instrument is to be returned to Hanna Instruments, first obtain a Returned Goods The reaction between chlorine and the reagents causes a pink tint in Authorization Number from the Customer Service Department and then send it with shipment the sample. -
Page 6: Principle Of Operation
PRINCIPLE OF OPERATION ACCESSORIES Absorption of Light is a typical phenomenon of interaction between electromagnetic radiation and REAGENT SETS matter. When a light beam crosses a substance, some of the radiation may be absorbed by HI 93701-F 300 tests Free Chlorine atoms, molecules or crystal lattices. -
Page 7: Functional Description
A microprocessor controlled special tungsten lamp emits radiation which is first optically BATTERY REPLACEMENT conditioned and beamed to the sample contained in the cuvet. The optical path is fixed by the diameter of the cuvet. Then the light is spectrally filtered to a narrow spectral bandwidth, to obtain a light beam of intensity Battery replacement must only take place in a The photoelectric cell collects the radiation... - Page 8 KEYPAD DESCRIPTION DATE INPUT • ON/OFF: to turn the meter on and off. • Keep READ pressed to scroll to the desired month number (01-12). • ZERO: press to zero the meter prior to measurement. • READ: press for making a measurement. •...
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Page 9: Guide To Display Codes
Note: at this point it is possible to reset the GUIDE TO DISPLAY CODES instrument restore FACTORY CALIBRATION, see instructions page 17. • Place the CAL CHECK™ Standard Cuvet A This prompt appears for 1 second each time the instrument is turned on. into the holder and ensure that the notch on the cap is positioned securely into the groove. - Page 10 “Error”: the concentration of the calibration solution used is not correct. • Remove the cuvet and place the CAL Repeat the calibration procedure with the right standard solution, and CHECK™ Standard HI 95724-11 Cuvet B verify it is not expired. If the calibration procedure fails again, contact your into the holder.
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Page 11: General Tips For An Accurate Measurement
INTERFERENCES GENERAL TIPS FOR AN ACCURATE MEASUREMENT • Positive error: - Bromine - Chlorine dioxide The instructions listed below should be carefully followed during testing - Iodine to ensure best accuracy. - Ozone - Oxidized Manganese and Chromium • For a correct filling of the cuvet: the liquid in the cuvet forms a convexity on the top;... -
Page 12: Measurement Procedure
• Do not let the reacted sample stand too long after reagent is added, or accuracy will be lost. • For free chlorine measurement: add 3 drops of HI 93701A-T DPD1 indicator and 3 • It is possible to take multiple readings in a row, but it is recommended to take a new zero drops of HI 93701B-T DPD1 buffer to an reading for each sample and to use the same cuvet for zeroing and measurement.
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