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 or

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 96712

HI 96712

HI 96712

HI 96712

HI 96712

Aluminum ISM

w w w . h a n n a i n s t . c o m

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 96712

 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 a graduated beaker with 50 mL of
sample.

4•

Add the content of one packet of

HI 96712A-0 Aluminum

 Reagent A and

mix until dissolution is complete.

5•

In the same beaker add the content of
one packet of 

HI 96712B-0 Aluminum

Reagent B and mix until dissolution is
complete. This is the sample.

6•

Fill two cuvettes with 10 mL of sample
each.

7•

Add the content of one packet of

HI 96712C-0 Aluminum

 Reagent C to

only one of the two cuvettes. Replace the
cap and shake gently. This is the blank.

8•

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

9•

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 press 

ZERO/CFM

 directly.

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

10•

After a few seconds the display will show

“-0.0-”

. The meter is now zeroed and

ready for measurement.

11•

Remove the blank and insert the other

Measurement 

1. The measuring scheme (lamp, cuvette, detector), appears during

different phases of zero or reading measurement

2. Error messages and warnings
3. The baterry icon shows the charging level of the batery
4. The hourglass appears when an internal checking 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:

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, the meter will lock up.
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.

Cooling lamp:

 The instrument waits for the

lamp to cool down.

Range

0.00 to 1.00 mg/L

Resolution

0.01 mg/L

Accuracy

±0.02 mg/L ±4% of reading @ 25°C

Typical EMC Dev.

±0.01 mg/L

Light Source

Tungsten Lamp

Light Detector

Silicon Photocell with narrow band interfer-
ence filter @ 525nm

Method

Adaptation of the aluminon method.
The reaction between aluminum and

reagents causes a reddish 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 102 x 67 mm (7.6 x 4 x 2.6”)

Weight

290 g (10 oz.).

Technical specifications:

2

3-5

6

7

8

9-10

# 1

11

# 2

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