background image

16

17

• After a few seconds, the display will

show 

“-0.0-”

. The meter is now zeroed

and ready for measurement.

• Remove the cuvette.

• Add the content of one packet of the

specific test reagent, for:

Free Chlorine:

 1 packet of 

HI 93701-0

or

Total Chlorine:

 1 packet of 

HI 93711-0

• Replace the cap and shake gently for 20

seconds (or 2 minutes in case of seawater
analysis).

• Replace the cuvette into the cuvette holder

and ensure that the notch on the cap is
positioned securely into the groove.

• Press and hold 

READ/ /TIMER

 

for three

seconds.

 The display will show the

countdown prior to measurement. An
audible “beep” indicates the end of
countdown period.

• Alternatively, wait for 1 minute for free

chlorine or 2’30’’ for total chlorine and
just press 

READ/ /TIMER.

In both cases, the lamp, cuvette and
detector icons will appear on the display,
depending on the measurement phase.

To compensate the meter for the sample turbidity or color, the measurement takes place in two
phases. First, the meter is zeroed using the unreacted sample. After the reagents are added the
reacted sample is measured.

Important note:

 Free and Total Chlorine have to be measured separately with fresh unreacted

samples if both values are requested.

MEASUREMENT PROCEDURE

• Turn the meter on by pressing 

ON/OFF

.

The display briefly shows all tags on.

• When the beeper sounds briefly and the

LCD displays dashes, the meter is ready.
The blinking 

“ZERO”

 indicates that the

instrument needs to be zeroed first.

• Pay attention to the selected range.

To change the range, simply press

RANGE/GLP/

.

• Fill the cuvette with 10 mL of unreacted

sample, up to the mark, and replace the
cap.

• Place the cuvette into the cuvette holder

and ensure that the notch on the cap is
positioned securely into the groove.

• Press 

ZERO/CFM

 and the lamp, cuvette

and detector icons will appear on the
display, depending on the measurement
phase.

Distributed by Applied Membranes, Inc. 

http://www.appliedmembranes.com

Distributed by Applied Membranes, Inc. 

http://www.appliedmembranes.com

Содержание 96711C

Страница 1: ...1 Instruction Manual HI 96711C Free and Total Chlorine ISM ...

Страница 2: ...GLP 23 BATTERY MANAGEMENT 24 BATTERY REPLACEMENT 24 ACCESSORIES 25 WARRANTY 26 Dear Customer Thank you for choosing a Hanna product This manual will provide you with the necessary information for the correct use of the instrument Please read it carefully before using the meter If you need additional technical information do not hesitate to e mail us at tech hannainst com All rights are reserved Re...

Страница 3: ...ame position every time it is placed into the measurement cell It is designed to fit a cuvette with a larger neck making it easier to add both sample and reagents The cuvette is made from special optical glass to obtain best results The HI 96711 meter measures the free and total chlorine Cl2 content in water samples in the 0 00 to 5 00 mg L ppm range The method is an adaptation of the USEPA Method...

Страница 4: ...sults HI 96 series block diagram optical layout SPECIFICATIONS PRECISION AND ACCURACY Range Free Cl2 0 00 to 5 00 mg L Total Cl2 0 00 to 5 00 mg L Resolution 0 01 mg L from 0 00 to 3 50 mg L 0 10 mg L above 3 50 mg L Accuracy 0 03 mg L 3 of reading 25 C Typical EMC Deviation 0 01 mg L Light Source Tungsten lamp Light Detector Silicon Photocell with narrow band interference filter 525nm Method Adap...

Страница 5: ...tion of light It is recommended not to touch the cuvette walls with hands Furthermore in order to maintain the same conditions during the zeroing and the measuring phases it is necessary to close the cuvette to prevent any contamination INSTRUMENT DESCRIPTION KEYPAD DESCRIPTION ON OFF to turn the meter on and off ZERO CFM this is a bi functional key Just press to zero the meter prior to measuremen...

Страница 6: ...ette are inverted Zero A zero reading was not taken Follow the instructions of the measurement procedure for zeroing the meter b on sample reading DISPLAY ELEMENTS DESCRIPTION 1 The measuring scheme lamp cuvette detector appears during different phases of zero or reading measurement 2 Error messages and warnings 3 The battery icon indicates the charge state of the battery 4 The hourglass appears w...

Страница 7: ...tion is displayed normal operation of the instrument will be interrupted Change the battery and restart the meter Under range A blinking 0 00 indicates that the sample absorbs less light than the zero reference Check the procedure and make sure you use the same cuvette for reference zero and measurement Over Range A flashing value of the maximum concentration indicates an over range condition The ...

Страница 8: ...cap must be tightened to the same degree Whenever the cuvette is placed into the measurement cell it must be dry outside and completely free of fingerprints oil or dirt Wipe it thoroughly with HI 731318 or a lint free cloth prior to insertion Shaking the cuvette can generate bubbles in the sample causing higher readings To obtain accurate measurements remove such bubbles by swirling or by gently t...

Страница 9: ... turbidity or color the measurement takes place in two phases First the meter is zeroed using the unreacted sample After the reagents are added the reacted sample is measured Important note Free and Total Chlorine have to be measured separately with fresh unreacted samples if both values are requested MEASUREMENT PROCEDURE Turn the meter on by pressing ON OFF The display briefly shows all tags on ...

Страница 10: ...ERFERENCES Bromine positive error Oxidized Manganese and Chromium positive error Chlorine dioxide positive error Ozone positive error Iodine positive error In case of water alkalinity greater than 250 mg L CaCO3 or acidity greater than 150 mg L CaCO3 the color of the sample may develop only partially or may rapidly fade To resolve this neutralize the sample with diluted HCl or NaOH In case of wate...

Страница 11: ...rupt calibration procedure at any time by pressing CAL CHECK or ON OFF keys Warning Do not calibrate the instrument with standard solutions other than the HANNA CAL CHECKTM Standards otherwise erroneous results will be obtained When calibrating only the selected range is affected Turn the meter on by pressing ON OFF When the beeper sounds briefly and the LCD displays dashes the meter is ready To c...

Страница 12: ...can be verified and the factory calibration can be restored LAST CALIBRATION DATE GLP Press RANGE GLP to edit the desired year 2009 2099 If the key is kept pressed the year number is automatically increased When the correct year has been set press ZERO CFM or READ TIMER to confirm Now the display will show the month blinking Press RANGE GLP to edit the desired month 01 12 If the key is kept presse...

Страница 13: ... a new zero has to be performed One fresh battery lasts for around 750 measurements depending on the light level The remaining battery capacity is evaluated at the instrument startup and after each measurement The instrument displays a battery indicator with three levels as follows 3 lines for 100 capacity 2 lines for 66 capacity 1 line for 33 capacity Battery icon blinking if the capacity is unde...

Страница 14: ... repair or replacement free of charge Damages due to accident misuse tampering or lack of prescribed maintenance are not covered If service is required contact your dealer If under warranty report the model number date of purchase serial number and the nature of the failure If the repair is not covered by the warranty you will be notified of the charges incurred If the instrument is to be returned...

Страница 15: ...rintedinEUROPE ROMANIA 2450 Business Park Dr Vista CA 92081 760 727 3711 760 727 4427 www appliedmembranes com sales appliedmembranes com Industry Leader in RO Expertise and Membrane Applications since 1983 Distributed By ...

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