Hanna Instruments HI 96769 User Manual

Page 2

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.

FACTORY CALIBRATION RESTORE

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

1• Press GLP/ to enter

GLP mode.

or dirt and that they are inserted cor-
rectly.

Then the date of 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.

12•Press GLP/ to edit the desired year

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

13•When the correct year has been set, press

ZERO/CFM

or READ/ /TIMER to confirm.

Now the display will show the month blinking.

14•Press GLP/ to edit the desired month

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

15•When the correct month has been set,

press ZERO/CFM or READ/ /TIMER to
confirm. Now the display will show the
day blinking.

16•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.

17• Press ZERO/CFM to save the calibration date.
18•The instrument displays “Stor” for one

second and the calibration is saved.

19•The instrument will return automatically

measurement mode by displaying dashes

on the LCD.

REAGENT SET

REAGENT SET
HI 95769-01

Reagents for 40 Anionic Surfactants tests

OTHER ACCESORIES

OTHER ACCESORIES
HI 96769-11

CAL CHECK

Standard Cuvettes (1 set)

HI 70000P

20 mL Deionized rinse solution (25 pcs)

HI 740220

25 mL glass test tubes with caps (2 pcs)

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

HI 93703-50

Cuvette cleaning solution (230 mL)

Accessories

Warranty

HI 96769

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

IST96769 01/11

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.

INTERFERENCES
Cationic surfactants

negative interference

Absorption particulate matter

negative interference

Sulfide

negative interference

Organic sulfates, sulfonates

positive interference

Strong oxidants (Cl

, H

, S

, etc.)

negative interference

Highly buffered samples or with extreme pH may exceed the buffering
capacity of the reagent: pH should be adjusted between 4 and 9 with
diluted NaOH for acidic samples or with diluted HCl for alkaline samples,
prior to addition of the reagent.

22•Remove the cuvette.
23•Place the reacted sample (cuvette #2) into

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

24•Press READ/

READ/

READ/ /TIMER

/TIMER

The lamp, cuvette

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

25•At the end of measurement, the instrument

directly displays concentration in mg/L (ppm) of
anionic surfactants (MBAS) as SDBD on the LCD.

CONVERSION FACTORS
The anionic detergent content is expressed as
mg/L of SDBS.
Convert the reading to mg/L (ppm) of a differ-
ent anionic detergent concentration (DX) of known
molecular weight (MW

), as follows:

20-21

Reading (mg/L SDBS) x MW

DX (mg/L)

DX (mg/L) =

348.48

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 any
more, 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.

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.

Calibration

HI 96769-11

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
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

96769-11

Cuvette A into the cuvette holder

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

6• Press ZERO/CFM and the lamp, cuvette

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

7• 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.

8• Remove the cuvette.
9• Place the CAL CHECK™ Standard

HI 96769-11

Cuvette B into the cuvette

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

10•Press READ/ /TIMER and the lamp,

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

11•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™

Standard HI 96769-11 Cu-

vettes, A and B are free from fingerprints

GLP

Battery management

6-7

10-11

12-13

14-15

17-18

Last

Calibration

Date

In the

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

factory calibration can be restored.

Factory

Calibration

Restore

3-4

Warning:

do not validate or calibrate the instrument with standard

solutions other than the Hanna CAL CHECK™ Standards, otherwise
erroneous results will be obtained.

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

Validation and Calibration procedures

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 96769-11

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

Validation

4-5