Hanna Instruments HI 96712 Instruction Manual

Dear Customer,
INSTRUCTION MANUAL
Thank you for choosing a Hanna product. This manual will provide you
with the necessary information for the correct use of the instrument. Please
HI 96712 HI 96712 HI 96712 HI 96712 HI 96712
read it carefully before using the meter. If you need additional technical
information, do not hesitate to e-mail us at tech@hannainst.com.
Aluminum ISM

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"
Range
Resolution
Accuracy
Typical EMC Dev.
Light Source
Light Detector
Method
Environment
Battery Type
Auto-Shut off
Dimensions
Weight
w w w . h a n n a i n s t . c o m

Functional description:

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)

Technical specifications:

7. Cuvette alignment indicator
0.00 to 1.00 mg/L
8. Cuvette holder
0.01 mg/L
±0.02 mg/L ±4% of reading @ 25°C

DISPLAY ELEMENTS DESCRIPTION:

±0.01 mg/L
Tungsten Lamp
Silicon Photocell with narrow band interfer-
ence filter @ 525nm
Adaptation of the aluminon method.
The reaction between aluminum and
reagents causes a reddish tint in the
sample.
0 to 50°C (32 to 122°F);
1. The measuring scheme (lamp, cuvette, detector), appears during
max 95% RH non-condensing
different phases of zero or reading measurement
1 x 9 volt
2. Error messages and warnings
3. The baterry icon shows the charging level of the batery
After 10' of non-use in measurement mode ;
after 1 hour of non-use in calibration mode ; 4. The hourglass appears when an internal checking is in progress
with last reading reminder.
5. Status messages
6. The chronometer appears when the reaction timer is running
192 x 102 x 67 mm (7.6 x 4 x 2.6")
7. The month, day and date icons appear when a date is displayed
290 g (10 oz.).
8. Four digit main display
9. Measuring units
10. Four digit secondary display

Errors and warnings:

ON ZERO READING:
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.
ON SAMPLE READING:
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.
DURING CALIBRATION PROCEDURE:
Standard Low: The standard reading is less
than expected.
Standard High: The standard reading is higher
than expected.
OTHER ERRORS AND WARNINGS:
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.
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.

Measurement procedure:

Measurement
1• Turn the meter on by pressing ON/OFF.
2
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.
3-5
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.
6
5• In the same beaker add the content of
one packet of HI 96712B-0 Aluminum
7
Reagent B and mix until dissolution is
complete. This is the sample.
6• Fill two cuvettes with 10 mL of sample
each.
8
# 1
7• Add the content of one packet of
HI 96712C-0 Aluminum Reagent C to
only one of the two cuvettes. Replace the
9-10
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.
or
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
11
"-0.0-". The meter is now zeroed and
# 2
ready for measurement.
11•Remove the blank and insert the other