Hanna-instruments HI 96707 User Manual download pdf

Technical specifications

Range 0.000 to 0.600 mg/L

Resolution 0.001 mg/L

Accuracy ±0.020 mg/L ±4% of reading @ 25°C

Typical EMC Dev. ±0.001 mg/L

Light Source Tungsten lamp

Light Detector Silicon Photocell with narrow band interfer-

ence filter @ 525 nm

Method Adaptation of the

EPA Diazotization method

354.1

. The reaction between nitrite and the

reagent causes a pink tint in the sample.

Environment 0 to 50°C (32 to 122°F);

max 95% RH non-condensing

Battery Type 1 x 9 volt

Auto-Shut off After 10' of non-use in

measurement mode;

after 1 hour of non-use in

calibration mode;

with last reading reminder.

Dimensions 192 x 104 x 69 mm (7.6 x 4.1 x 2.7”)

Weight 360 g (12.7 oz.).

1. GLP/ key: press to enter

GLP mode

. In

calibration mode

press to

edit the date and time.

2. CAL CHECK key: press to perform the validation of the meter, or

press and hold for three seconds to enter

calibration mode

3. ZERO/CFM key: press to zero the meter prior to measurement, to

confirm edited values or to confirm factory calibration restore.

4. READ/ /TIMER key: In

measurement mode

, press to make a

measurement, or press and hold for three seconds to start a

pre-programmed countdown prior to measurement. In

GLP mode

press to view the next screen.

5. ON/OFF key: to turn the meter on and off.

6. Liquid Crystal Display (LCD)

7. Cuvette alignment indicator

8. Cuvette holder

DISPLAY ELEMENTS DESCRIPTION

INSTRUCTION MANUAL

HI 96707HI 96707

HI 96707

Nitrite Low Range ISM

www.hannainst.com

Preliminary examination

Please examine this product carefully. Make sure that the instrument is

not damaged. If any damage occured during shipment, please notify

your Dealer.

Each HI 96707 Ion Selective Meter is supplied complete with:

• Two Sample Cuvettes and Caps

• 9V Battery

• Instruction Manual

Note: save all packing material until you are sure that the instrument

works correctly. Any defective item must be returned in its original

packing.

For more details about spare parts and accessories

see “Accessories”.

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 [email protected].

Functional description

Light High: There is too much light to perform

a measurement. Please check the preparation of

the zero cuvette.

Light Low: There is not enough light to perform

a measurement. Please check the preparation of

the zero cuvette.

No Light: The instrument cannot adjust the

light level. Please check that the sample does

not contain any debris.

Inverted cuvettes: The sample and the zero

cuvette are inverted.

Zero: A zero reading was not taken. Follow the

instructions of the measurement procedure for

zeroing 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 concentration of the sample is beyond the

programmed range: dilute the sample and re-

run the test.

Standard Low: The standard reading is less

than expected.

Standard High: The standard reading is higher

than expected.

Errors and warnings

Measurement procedure

1• Turn the meter on by pressing ON/OFF.

2• 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.

3• Fill the cuvette with 10 mL of unreacted

sample, up to the mark, and replace the

cap.

4• Place the cuvette into the holder and

ensure that the notch on the cap is

positioned securely into the groove.

5• Press ZERO/CFM and the lamp, cuvette

and detector icons will appear on the

display, depending on the measurement

phase.

6• After a few seconds the display will show

“-0.0-”. The meter is now zeroed and

ready for measurement.

7• Remove the cuvette.

8• Add the content of one packet of

HI 93707-0 Nitrite Low Range reagent to

the cuvette.

9• Replace the cap and shake gently for

15 seconds.

10•Replace the cuvette into the cuvette holder

and ensure that the notch on the cap is

positioned securely into the groove.

11•Press and hold READ/ /TIMER for three

seconds. The display will show the

countdown prior to measurement. The

beeper is playing a beep at the end of

countdown period.

Alternatively, wait for 15 minutes and just

press READ/ /TIMER.

In both cases, the lamp, cuvette and

detector icons will appear on the display,

depending on the measurement phase.

Measurement

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 when an internal check is in progress

5. Status messages

6. The chronometer appears when the reaction timer is running

7. The month, day and date icons appear when a date is displayed

8. Four digit main display

9. Measuring units

10. Four digit secondary display

ON ZERO READING

ON SAMPLE READING

DURING CALIBRATION PROCEDURE

OTHER ERRORS AND WARNINGS

Cooling lamp: The instrument waits for the

lamp to cool down.

Battery low: The battery must be replaced

soon.

Dead battery: This indicates that the battery

is dead and must be replaced. Once this

indication is displayed, normal operation of the

instrument will be interrupted. Change the

battery and restart the meter.

Cap error: Appears when external light enters

in the analysis cell. Assure that the cuvette cap

is present.

4, 10

5-6

8-9

1 2

Summary of Contents

Page 1 - Nitrite Low Range ISM

Technical specificationsRange 0.000 to 0.600 mg/LResolution 0.001 mg/LAccuracy ±0.020 mg/L ±4% of reading @ 25°CTypical EMC Dev. ±0.001 mg/LLight Sour

Page 2 - INTERFERENCES

To save battery, the instrument shuts down after 10 minutes of non-usein measurement mode and after 1 hour of non-use in calibration mode.If a valid m

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Hanna-instruments HI 96707 User Manual

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Summary of Contents

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