Hanna Instruments HI 96747 User Manual

Page 2

To save battery, the instrument shuts down after 10 minutes of non-use
in

measurement mode and after 1 hour of non-use in calibration mode.

If a valid measurement was displayed before
auto shut off, the value is displayed when the
instrument is switched on. The blinking “ZERO”
means that 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 under 10 %.
If the battery is empty and accurate measurements can’t be taken
anymore, the instrument shows “dead batt

dead batt

” and turns off.

To restart the instrument, the battery must be replaced with a fresh one.
To replace the instrument’s battery, follow the steps:
• Turn the instrument off by pressing ON/OFF.
• Turn the instrument upside down and remove the battery cover by

turning it counterclockwise.

• Extract the battery from its location and replace it with a fresh one.
• Insert back the battery cover and turn it clockwise to close.

3-4

FACTORY CALIBRATION RESTORE

It is possible to delete the calibration and restore
factory calibration.

1• Press GLP/ to enter

GLP mode.

LAST CALIBRATION DATE

1• Press GLP/ to enter

GLP mode. The

calibration month and day will appear on
the main display and the year on the
secondary display.

2• If no calibration was performed, the factory

calibration message, “F.CAL” will appear
on the main display and the instrument
returns to

measurement mode after three

seconds.

11•Press GLP/ to edit the desired year

(2000-2099). If the key is kept pressed,
the year number is automatically increased.

12•When the correct year has been set, press

ZERO/CFM

or READ/ /TIMER to confirm.

Now the display will show the month blinking.

13•Press GLP/ to edit the desired month

(01-12). If the key is kept pressed, the
month number is automatically increased.

14•When the correct month has been set, press

ZERO/CFM

or READ/ /TIMER to confirm.

Now the display will show the day blinking.

15•Press GLP/ to edit the desired day (01-

31). If the key is kept pressed, the day
number is automatically increased.

Note:

It is possible to change the editing from

day to year and to month by pressing
READ/ /TIMER.

16•Press ZERO/CFM to save the calibration date.

17•The instrument displays “Stor” for one

second and the calibration is saved.

18•The instrument will return automatically

measurement mode by displaying dashes

on the LCD.

are free of fingerprints, oil or dirt and
repeat validation. If results are still found
out of specifications then recalibrate the
instrument.

CALIBRATION
Note:

It is possible to interrupt the calibration

procedure at any time by pressing CAL
CHECK

or ON/OFF keys.

1• Turn the meter on by pressing ON/OFF.
2• When the beeper sounds briefly and the

LCD displays dashes, the meter is ready.

3• Press and hold CAL CHECK

for three

seconds to

enter

calibration mode. The

display will show “CAL” during calibration
procedure. The blinking “ZERO” asks for
instrument zeroing.

4• Place the CAL CHECK

Standard

HI 96747-11

Cuvette A into the cuvette

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 calibration. The blinking
“READ”

asks for reading calibration

standard.

7• Remove the cuvette.
8• Place the CAL CHECK

Standard

HI 96747-11

Cuvette B into the cuvette

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

9• Press READ/ /TIMER and the lamp,

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

10•After measurement the instrument will show

for three seconds the Cal Check Standard
value.

Note:

If the display shows “STD HIGH”, the

standard value was too high. If the display
shows “STD LOW”, the standard value
was too low. Verify that both CAL CHECK

Standards HI 96747-11 Cuvettes, A and B
are free from fingerprints or dirt and that
they are inserted correctly.

Then the date of the last calibration

(e.g.: ”01.08.2005”) appears on the
display, or “01.01.2005” if the factory
calibration was selected before. In both
cases the year number is blinking, ready
for date input.

REAGENT SET

REAGENT SET
HI 95747-01

Reagents for 100 tests

HI 95747-03

Reagents for 300 tests

OTHER ACCESORIES

OTHER ACCESORIES
HI 96747-11

CAL CHECK

Standard Cuvettes (1 set)

HI 721310

9V battery (10 pcs.)

HI 731318

Cloth for wiping cuvettes (4 pcs.)

HI 731331

Glass cuvettes (4 pcs.)

HI 731335

Caps for cuvettes (4 pcs.)

HI 93703-50

Cuvette cleaning solution (230 mL)

Accessories

Warranty

HI 96747

is warranted for two years against defects in workmanship and

materials when used for its intended purpose and maintained according
to the instructions.
This warranty is limited to 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 to Hanna Instruments, first obtain a
Returned Goods Authorization Number from the Customer Service Department
and then send it with shipment costs prepaid. When shipping any
instrument, make sure it is properly packaged for complete protection.
To validate your warranty, fill out and return the enclosed warranty card
within 14 days from the date of purchase.

Hanna Instruments

reserves the right to modify the

design, construction and appearance of its products

without advance notice.

For additional information, contact your

dealer or the nearest

Hanna Customer Service Center.

To find the Hanna Office in your area,

visit our web site

w w w . h a n n a i n s t . c o m

IST96747 07/11

Recommendations for Users

Before using these products, make sure that they are entirely suitable for your specific application and for
the environment in which they are used.
Operation of these instruments may cause unacceptable interferences to other electronic equipments, this
requiring the operator to take all necessary steps to correct interferences.
Any variation introduced by the user to the supplied equipment may degrade the instrument’s EMC
performance.
To avoid damages or burns, do not put the instrument in microwave oven. For yours and the instrument
safety do not use or store the instrument in hazardous environments.

Validation and Calibration procedures

Warning:

Do not validate or calibrate the instrument with standard

solutions other than the Hanna CAL CHECK™ Standards, otherwise
erroneous results will be obtained.
For accurate validation and calibration results, please perform tests at
room temperature (18 to 25°C; 64.5 to 77.0°F).

Use the Hanna CAL CHECK™ cuvettes (see
“Accessories”) to validate or calibrate
instruments.

VALIDATION

1• Turn the meter on by pressing ON/OFF.
2• When the beeper sounds briefly and the

LCD displays dashes, the meter is ready.

3• Place the CAL CHECK

Standard

HI 96747-11

Cuvette A into the cuvette

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

4• Press ZERO/CFM and the lamp, cuvette

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

5• After a few seconds, the display will

show “-0.0-”. The meter is now zeroed
and ready for validation.

6• Remove the cuvette.
7• Place the CAL CHECK

Standard

HI 96747-11

Cuvette B into the cuvette

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

8• Press CAL CHECK

key and the lamp,

cuvette and detector icons together with
“CAL CHECK”

will appear on the display,

depending on the measurement phase.

9• At the end of the measurement the display

will show the validation standard value.
The reading should be within specifications
as reported on the CAL CHECK™ Standard
Certificate. If the value is found out of
specifications, please check that the cuvettes

Calibration

5-6

4-5

Validation

INTERFERENCES
• Cyanide
• Silver
• For strongly buffered alkaline or acidic samples,
pH should be adjusted between 6 and 8 before
addition of reagent.
• To avoid interferences due to fingerprints, oil
or dirt it is very important that the cuvette is
wiped clean prior to insertion in the cuvette
holder. Replacement of scratched cuvettes is
strongly recommended.

11-12

13-14

Factory

Calibration

Date

GLP

Last

Calibration

Date

In the

GLP mode, the last calibration date can be consulted and the

factory calibration can be restored.

1-2

2• Press READ/ /TIMER to enter in the

factory calibration restore screen. The
instrument asks for confirmation of user
calibration delete.

3• Press ZERO/CFM to restore the factory

calibration or press GLP/ again to
abort factory calibration restore.

4• The instrument briefly notifies “done” when

restores factory calibration and returns to
measurement mode.

Battery management