Hanna Instruments HI 9214 User manual

Instruction Manual
HI 9214
Microprocessor
pH/temperature meter
www.hannainst.com
This Instrument is in
Compliance with the CE Directives
Hanna Instruments reserves the right to modify the design, con-
struction and appearance of its products without advance notice.
WARRANTY
All Hanna Instruments meters are warranted for two years against
defects in workmanship and materials when used for their intended
purpose and maintained according to instructions. The electrodes and
the probes are warranted for a period of six months. 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 the dealer from whom you purchased the
instrument. If under warranty, report the model number, date of pur-
chase, 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 de-
partment and then send it with shipment costs prepaid. When shipping
any instrument, make sure it is properly packaged for complete protec-
tion.
All rights are reserved. Reproduction in whole or in part is prohibited
without the written consent of the copyright owner, Hanna Instru-
ments Inc., Woonsocket, Rhode Island, 02895 , USA.
Dear Customer,
Thank you for choosing a Hanna product. This manual will
provide you with the necessary information for correct opera-
tion of the meter. Please read it carefully before using the
meter. If you need additional technical information, do not
hesitate to e-mail us at [email protected].
This instrument is in compliance with the directives.
Remove the instrument from the packing material and
examine it carefully to make sure that no damage has
occurred during shipment. If there is any damage, notify
your Dealer.
Note: Conserve all packing material until the instrument
has been observed to function correctly. Any defective
item must be returned in its original packing.
PRELIMINARY EXAMINATION
GENERAL DESCRIPTION
HI 9214 is a compact stick microprocessor-based pH/°C
meter designed to be carried anywhere.
Main features are: interchangeable plastic-body electrode,
simple controls on the front panel, low battery detector,
simple calibration procedure and lightweight ABS plastic
housing.
The pH-electrode has a built-in temperature sensor for quick
and accurate temperature measurements and temperature
compensation. The meter has three memorized buffer values
(pH 4.01, pH 7.01, pH 10.01) and automatic buffer
recognition to avoid errors during calibration. There are no
trimmers making calibration an easy process, even for
nontechnical personnel.
HI 9214 comes supplied with: HI 12170 screw-type combi-
nation gel pH/°C electrode, a 9V battery and HI 710003
soft carrying case.
FUNCTIONAL DESCRIPTION SPECIFICATIONS
1) SET/HOLD key, to change range, to confirm values
during calibration and to freeze readings on display
2) CAL key, to enter calibration mode
3) ON/OFF key
4) Liquid Crystal Display
5) Screw-type socket for combination pH-electrode with
built-in temperature sensor.
Range -2.00 to 16.00 pH / -5.0 to 70.0 °C
Resolution 0.01 pH / 0.1 °C
Accuracy (@20°C/68°F) ±0.02 pH / ±0.5 °C
Typical EMC Deviation ±0.02 pH / ±0.4°C
pH Calibration Automatic, at 1 or 2 points with
3 memorized buffer values
Temperature Compensation Automatic
Probe HI 12170 pH/temperature probe
with screw-type connector
Battery Type 1 x 9V alkaline
Battery Life 700 hours of continuous use
Auto-off after 8 minutes of nonuse
Environment 0 to 50°C (32 to 122°F);
max 95% RH not condensing
Dimensions 185 x 42 x 26 mm (7.3 x 1.6 x 1.0")
Weight 350 g (12.3 oz.)

OPERATIONAL GUIDE CE DECLARATION OF CONFORMITY
ISTR9214 11/02
• The meter is supplied complete with a 9V battery. Remove
the battery compartment cover on the back of the meter,
install the battery while paying attention to its polarity.
• Always remove the electrode protective cap before taking
any measurements. If the electrode has been left dry, soak
the tip in HI 70300 Storage Solution for half an hour to
reactivate it.
• Connect the pH electrode to the screw type connector on
the meter. Be sure that the electrode and the meter
connections are clean and dry to ensure a positive
contact. Turn the meter on by pressing ON/OFF.
• The LCD will show all the used segments for a few seconds
and then enters the normal measurement mode.
• Submerge the probe tip (at least
4cm/1½") into the sample to be
tested.
• To take pH measurements press the
SET/HOLD button to select the pH
range. Stir briefly and wait for the
reading to stabilize.
• The display will show the pH value automatically compen-
sated for temperature variations.
Note: In order to take accurate pH measurements, make sure
the instrument has been calibrated before use.
Note: If measurements are taken in different samples succes-
sively, it is recommended to rinse the electrode thoroughly
to avoid cross-contamination. After cleaning, rinse the
electrode with some of the sample to be measured.
• To take temperature measurements press the SET/HOLD
button to select the temperature mode. Stir briefly and wait
for the reading to stabilize.
• To freeze the display, while in measurement mode, press
and hold the SET/HOLD button until the HOLD tag lights
up. The reading will be frozen on the LCD.
Press the SET/HOLD button again to return to normal mode.
• Connect the electrode and switch the meter ON.
• Enter the Calibration mode by pressing the CAL button. The
pH tag starts blinking on the LCD.
• For a single-point calibration, place the electrode in any
buffer, eg. pH 4.01, 7.01 or 10.01. The meter will
automatically recognize and display the buffer value.
• When the pH tag stops blinking, press the SET/HOLD
button to confirm the calibration point.
Note: If the pH 7.01 buffer was used, press the SET/HOLD
button again to exit the Calibration mode; the first
calibration point is stored and the meter returns to the
measurement mode. Otherwise, if a different buffer was
used, the meter will automatically return to normal
mode.
• For a two-point calibration, place the electrode in pH 7.01
buffer. The meter will automatically recognize and display
the buffer value.
• When the pH tag stops blinking, press the SET/HOLD
button to confirm and store the first calibration point.
• The meter will then ask for the second buffer. Place the
electrode in pH 4.01 (or pH 10.01) buffer.
• When also this buffer is recognized (the pH tag stops
blinking), press the SET/HOLD button to confirm and store
the second calibration point; the meter will return to normal
mode.
Note: If a solution with wrong pH value
is used as buffer for calibration,
the LCD will display the “Ec” mes-
sage.
Note: To exit the Calibration mode, press the CAL button at
any time. The meter will display dashes and then
return to normal mode.
Note: To reset to the default values, after entering the
Calibration mode and before the first calibration point is
confirmed (pH tag is blinking), press and hold the SET/
HOLD key, and then press the CAL button.
The meter displays “CLr” for a few
seconds and then return to nor-
mal mode.
Note: For better accuracy it is recommended to carry out a 2-
point calibration procedure.
pH CALIBRATION
Recommendations for Users
Before using this product, make sure that it is entirely suitable for the environment in
which they are used. Operation of this instrument in residential area could cause unaccept-
able interferences to radio and TV equipments, requiring the operator to take all necessary
steps to correct interferences. Any variation introduced by the user to the supplied equip-
ment may degrade the instrument’s EMC performance. To avoid damages or burns, do not
perform any measurement in microwave ovens.
ACCESSORIES
HI 12170 pH electrode with built-in temperature sensor
and screw-type connector
HI 70004P pH 4.01 buffer solution, 20 mL sachet (25 pcs)
HI 70007P pH 7.01 buffer solution, 20 mL sachet (25 pcs)
HI 70010P pH 10.01 buffer solution, 20 mL sachet (25 pcs)
HI 7004L pH 4.01 buffer solution, 500 mL bottle
HI 7007L pH 7.01 buffer solution, 500 mL bottle
HI 7010L pH 10.01 buffer solution, 500 mL bottle
HI 70300L Storage Solution, 500 mL bottle
Note: After use, rinse the electrode with water to minimize
contamination and store it with a few drops of storage
(HI 70300) or pH7 (HI 7007) solution in the protective
cap.
Note: Always turn the meter OFF and replace the electrode
protective cap after use.
NEVER USE DISTILLED OR DEIONIZED WATER FOR STORAGE
PURPOSES.
BATTERY REPLACEMENT
When the battery becomes weak, the
battery symbol on the LCD will light up
and, at startup, the meter displays the
“Eb” message for a few seconds.
When the low battery indicator appears, only a few hours of
battery life is remaining. It is recommended to replace the
battery immediately.
The meter is also provided with BEPS (Battery Error Prevent-
ing System), which avoids any erroneous reading due to low
battery level by warning the user with the “Eb” message on
the LCD and switching the meter off when the battery is
completely rundown.
Remove the cover on the back of the
meter and replace the battery with a
new one, while paying attention to
its polarity.
Replacement must only take place in
a nonhazardous area using an alka-
line 9V battery.