INSTRUCTION MANUAL
HI96752
Calcium and Magnesium
High Range ISM
Warning:
Do not validate or calibrate the instrument with standard solu-
tions other than the Hanna Instruments
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).
3
Validation
Note: The validation is performed only for
the selected parameter. For full validation
of the instrument, the following procedure
must be performed for each parameter.
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 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 specific
CAL Check
TM
Standard
Cuvette B into the cuvette holder, for:
Calcium
: B,
HI96752-11
Magnesium:
B,
HI96754-11
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 instru-
ment.
4-5
7
8
Calibration
Note: It is possible to interrupt the calibra-
tion procedure at any time by pressing
CAL CHECK or ON/OFF keys. When calibrat-
ing, only the selected range is affected.
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•
To change the range, simply press
RANGE/GLP
.
4•
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.
5•
Place the
CAL Check™
Standard 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 specific
CAL Check
TM
Standard
Cuvette B into the cuvette holder, for:
Calcium
: B,
HI96752-11
Magnesium
: B,
HI96754-11
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 Cuvettes, A and B are
free of fingerprints or dirt and that they are
inserted correctly.
12•
Then the date of last calibration (e.g.:
“01.08.2009”) appears on the display,
or “01.01.2009” if the factory calibration
was selected before. In both cases the year
number is blinking, ready for date input.
13•
Press
RANGE/GLP
to edit the desired
year (2009-2099). If the key is kept
pressed, the year number is automatically
increased.
9
4
5
6-7
9
10-11
Last Calibration Date
1•
Press and hold
RANGE/GLP
for three
seconds 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.
14•
When the correct year has been set, press
ZERO/CFM
or
READ /TIMER
to confirm.
Now the display will show the month blink-
ing.
15•
Press
RANGE/GLP
to edit the desired
month (01-12). If the key is kept pressed,
the month number is automatically in-
creased.
16•
When the correct month has been set, press
ZERO/CFM
or
READ /TIMER
to confirm.
Now the display will show the day blinking.
17•
Press
RANGE/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.
18•
Press
ZERO/CFM
to save the calibration
date.
19•
The instrument displays “
Stor
” for one
second and the calibration is saved.
20•
The instrument will return automatically to
measurement mode by displaying dashes
on the LCD.
12-14
or
15-16
or
17
18
In GLP mode, the last calibration date can be verified and the factory
calibration can be restored.
1
3•
Press
ZERO/CFM
to restore the factory
calibration or press
RANGE/GLP
again
to abort factory calibration restore.
4•
The instrument briefly indicates
“donE”
upon restoration of factory calibration prior
to returning to measurement mode.
To save the 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”
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
3-4
19
2
VALIDATION AND CALIBRATION PROCEDURES
Use the Hanna Instruments CAL Check™ cuvettes (see
“Accessories”) to validate or calibrate instruments.
Validation
Calibration
GLP
Factory Calibration
Restore
BATTERY MANAGEMENT
Last Calibration
Date
3''
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.
RECOMMENDATIONS FOR USERS
Factory Calibration Restore
It is possible to delete the calibration and
restore factory calibration.
1•
Press and hold
RANGE/GLP
for three
seconds to enter GLP mode.
2•
Press
READ /TIMER
to enter in the
factory calibration restore screen. The
instrument asks for confirmation of user
calibration delete.
