Hanna Instruments HI 95771C Instruction Manual
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Hanna Instruments HI 95771C Instruction Manual

Hanna Instruments HI 95771C Instruction Manual

Chlorine ultra high range ism
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Instruction Manual
HI 95771C
Chlorine
Ultra High Range
ISM
This Instrument is in
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Compliance with the CE Directives

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Summary of Contents for Hanna Instruments HI 95771C

  • Page 1 Instruction Manual HI 95771C Chlorine Ultra High Range This Instrument is in w w w . h a n n a i n s t . c o m Compliance with the CE Directives...

  • Page 2: Table Of Contents

    (mg/L) CE DECLARATION OF CONFORMITY ..................22 WARRANTY .........................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

    If the repair is not covered by the warranty, you will be notified of the charges incurred. If the instrument is to be returned to Hanna Instruments, first obtain a Returned Goods Authorization Number from the Customer Service Department and then send it with shipment costs prepaid.

  • Page 4: General Description

    GENERAL DESCRIPTION FACTORY CALIBRATION RESET It is possible to restore factory calibration: The HI 95771 is an auto diagnostic portable microprocessor meter that benefits from Hanna’s • Enter the calibration mode by holding CAL CHECK years of experience as a manufacturer of analytical instruments. It has the advanced optical for three seconds.

  • Page 5: Specifications

    SPECIFICATIONS • Press READ/TIMER and “SIP” will blink during measurement. for 771 Chlorine ULTRA HIGH RANGE • The instrument will show for three seconds the Range 0 to 500 mg/L CAL CHECK™ standard value, i.e. 100 for “771” chlorine ULTRA HIGH RANGE or 1.00 for “701” Resolution 1 mg/L from 0 to 200 mg/L;...

  • Page 6: Precision And Accuracy

    PRECISION AND ACCURACY CALIBRATION PROCEDURE Note: It is possible to interrupt calibration procedure at any time by pressing ON/OFF. Precision is how closely repeated Warning: do not validate or calibrate the instrument with standard solutions other than the Hanna measurements agree with each other. Precision CAL CHECK™...
  • Page 7 • Select the parameter code “771” for chlorine Photometric chemical analysis is based on the possibility to develop an absorbing compound from a ULTRA HIGH RANGE or “701” for chlorine specific chemical reaction between sample and reagents. Given that the absorption of a compound LOW RANGE by holding ZERO/SET (see page 13).

  • Page 8: Functional Description

    FUNCTIONAL DESCRIPTION • Hold READ/TIMER for three seconds. The display will show the countdown prior to measurement. Alternatively, wait for 1 minute and just 1) Liquid Crystal Display press READ/TIMER. 2) Cuvet Holder In both cases “SIP” will blink during 3) Cuvet alignment indicator measurement.

  • Page 9: Guide To Display Codes

    MEASUREMENT PROCEDURE DISPLAY ELEMENTS DESCRIPTION MEASUREMENT PROCEDURE FOR 701 Warning Warning Warning Warning Warning: if the Chlorine Low Range reagent is added to a sample with high chlorine concentration, the color formed can be rapidly bleached, resulting erroneous low readings. •...
  • Page 10 The blinking "BAT" indicates that the battery voltage is getting low and the battery needs to be replaced. • Replace the cuvet into the holder and ensure that the notch on the cap is positioned securely into the groove. This indicates that the battery is dead and must be replaced. Once this indication is displayed, the meter will lock up.
  • Page 11 MEASUREMENT PROCEDURE ERROR MESSAGES a) on zero reading MEASUREMENT PROCEDURE FOR 771 • Select the parameter code “771” for Chlorine This indicates that the zeroing procedure failed due to a low signal- ULTRA HIGH RANGE by holding ZERO/SET to-noise ratio. In this case press ZERO again. (see page 13).

  • Page 12: General Tips For An Accurate Measurement

    GENERAL TIPS FOR AN ACCURATE MEASUREMENT • Do not let the reacted sample stand too long after reagent is added, or accuracy will be lost. • It is possible to take multiple readings in a row, but it is recommended to take a new zero The instructions listed below should be carefully followed during testing to ensure best accuracy.

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