Hanna Instruments HI 98321 User Manual
Instruction Manual
HI 98321 & HI 98322
EC/TDS & Temperature meters
This Instrument is in
www.hannainst.com
WARRANTYWARRANTY
WARRANTY
WARRANTYWARRANTY
Compliance with CE
Directives
Dear Customer,
Thank you for choosing a Hanna product. This manual
will provide you with the necessary information for a
correct operation. Please read it carefully before
using the meter. If you need additional technical
information, do not hesitate to e-mail us at
tech@hannainst.com.
These instruments are in compliance with the
directives.
PRELIMINARY EXAMINATIONPRELIMINARY EXAMINATION
PRELIMINARY EXAMINATION
PRELIMINARY EXAMINATIONPRELIMINARY EXAMINATION
Remove the instrument from the packing material
and examine it carefully. If any damage has occurred
during shipment, immediately notify your Dealer or
the nearest Hanna Customer Service Center.
The meters are supplied with:
• HI 7031 1413 µS/cm calibration solution, 20 mL
sachet (for HI 98321)
• HI 7030 12.88 mS/cm calibration solution, 20 mL
sachet (for HI 98322)
• 4 x 1.5V AA batteries
• Instruction manual
Note: Conserve all packing material until the instru-
ment has been observed to function correctly.
Any defective item must be returned in its
original packing.
GENERAL DESCRIPTIONGENERAL DESCRIPTION
GENERAL DESCRIPTION
GENERAL DESCRIPTIONGENERAL DESCRIPTION
FUNCTIONAL DESCRIPTIONFUNCTIONAL DESCRIPTION
FUNCTIONAL DESCRIPTION
FUNCTIONAL DESCRIPTIONFUNCTIONAL DESCRIPTION
SPECIFICATIONSSPECIFICATIONS
SPECIFICATIONS
SPECIFICATIONSSPECIFICATIONS
RangeTemperature: 0.0 to 60.0°C or 32.0 to 140.0°F
HI 98321 EC: 0 to 3999 µS/cm
HI 98322 EC: 0.00 to 20.00 mS/cm
Resolution 0.1°C or 0.1°F
HI 98321 1 µS/cm ; 1 ppm
HI 98322 0.01 mS/cm ; 0.01 ppt
Accuracy (@20°C/68°F) Temperature ±0.5°C or ±1°F
Typical EMC Deviation Temperature ±0.5°C or ±1°F
Temp. Compensation Automatic, with β=0.0 to 2.4%/ºC
EC/TDS Conversion Factor 0.45 to 1.00 (CONV)
Calibration Automatic, at 1 point
Calibration Solutions
HI 98321 HI7031 (1413 µS/cm)
HI 98322 HI7030 (12.88 mS/cm)
Environment 0 to 50°C (32 to 122°F); RH 95%
Casing IP55
Battery Type/Life 4x1.5V AA with BEPS/typical 2000 hours
Auto-off After 8 minutes
Dimensions 121 x 53 x 38 mm (3.9 x 2.1 x 1.5”)
Weight 200 g (7.1 oz)
TDS: 0 to 2000 ppm
TDS: 0.00 to 10.00 ppt
EC/TDS ±2% f.s.
EC/TDS ±2% f.s.
HI7032 (1382 ppm; CONV=0.5)
HI70442 (1500 ppm; CONV=0.7)
HI70038 (6.44 ppt; CONV=0.5
or 9.02 ppt; CONV=0.7)
HI98321 and HI98322 are warranted for one year
against defects in workmanship and materials when
used for their intended purpose and maintained according to 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 the dealer from whom
you purchased the instrument. 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.
All rights are reserved. Reproduction in whole or in
part is prohibited without the written consent of the
copyright owner, Hanna Instruments Inc., Woonsocket,
Rhode Island, 02895 , USA.
Hanna Instruments reserves the right to modify the design, construction and appearance of its products without advance notice.
HI 98321 and HI 98322 are portable EC/TDS and
temperature meters specially designed for analytical
field applications.
These meters provide fast, accurate, on-the-spot measurements, with a unique stability indicator right on
the LCD.
All EC/TDS readings are automatically temperature
compensated (ATC), and temperature values can be
displayed in °C or °F units.
The EC/TDS conversion factor (CONV) is selectable by
the user, as well as the temperature compensation
coefficient β (BETA).
The meters can be easily calibrated at one point.
A low battery symbol warns the user when the batter-
ies are to be replaced. In addition the Battery Error
Prevention System (BEPS) avoids erroneous reading
caused by low voltage level by turning the meter off.
The built-in temperature and EC/TDS sensors are
protected inside the cell cup.
1. Cell cup
2. SET/HOLD button
3. ON/OFF/MODE button
4. Low battery indicator
5. Stability indicator
Recommendations for Users
Before using this product, make sure that it is entirely suitable for the environment in which it is used. Operation of
this instrument in residential areas could cause unacceptable interferences to radio and TV equipment.
Any variation introduced by the user to the supplied equipment may degrade the instrument’s EMC performance.
To avoid electrical shock, do not use this instrument when
voltages at the measurement surface exceed 24 VAC or 60
VDC. T o avoid damages or burns, do not perform any measurement in microwave ovens.
ISTR98321R2 05/02
OPERATIONAL GUIDEOPERATIONAL GUIDE
OPERATIONAL GUIDE
OPERATIONAL GUIDEOPERATIONAL GUIDE
ToTo
turnturn
thethe
metermeter
onon
andand
toto
checkcheck
batterybattery
To
turn
the
meter
on
and
to
ToTo
turnturn
thethe
metermeter
onon
Press and hold the
the used segments on the LCD will be visible for a few
seconds, followed by a percent indication of the
remaining battery life. Eg.
Taking measurementsTaking measurements
Taking measurements
Taking measurementsTaking measurements
Rinse and fill the cell cup
with the solution to be tested.
Select either EC or TDS
mode with the SET/HOLD
button.
The measurements should be
taken when the stability symbol ¹ on the top left of the
LCD disappears.
The EC (or TDS) value automatically compensated for
temperature is shown on the
primary LCD while the secondary LCD shows the temperature
of the sample.
ToTo
change the temperature unitchange the temperature unit
To
change the temperature unit
ToTo
change the temperature unitchange the temperature unit
To change the temperature unit (from °C to °F), from
measurement mode press and hold the MODE button
until
TEMP and the current temperature unit are
displayed on the lower LCD. Eg.
Use the SET/HOLD button to change the temperature
unit, and then press MODE button twice to return to
normal measurement mode.
ToTo
freezefreeze
To
freeze
ToTo
freezefreeze
Press the SET/HOLD button for 2-3 seconds until
HOLD appears on the secondary display.
Press either button to return to normal mode.
ToTo
turnturn
To
turn
ToTo
turnturn
Press the
mode.
OFF will appear on the lower part of the
display. Release the button.
NotesNotes
Notes:
NotesNotes
• Before taking any measurement make sure the
meter has been calibrated.
• If measurements are taken in different samples
successively, rinse the cell cup thoroughly to eliminate
cross-contamination; and after cleaning, rinse it with
some of the sample to be measured.
MODE button for 2-3 seconds. All
thethe
displaydisplay
the
display
thethe
displaydisplay
thethe
metermeter
meter
metermeter
offoff
off
offoff
the
thethe
MODE button while in normal measurement
andand
% 100 BATT.
toto
check
checkcheck
TEMP °C.
battery
batterybattery
statusstatus
status
statusstatus
CALIBRATIONCALIBRATION
CALIBRATION
CALIBRATIONCALIBRATION
For better accuracy, frequent calibration of the instrument is recommended. In addition, the instrument
must be recalibrated whenever:
a) After testing aggressive chemicals.
b) Where high accuracy is required.
c) At least once a month.
To change the EC/TDS conversion factor (CONV)To change the EC/TDS conversion factor (CONV)
To change the EC/TDS conversion factor (CONV)
To change the EC/TDS conversion factor (CONV)To change the EC/TDS conversion factor (CONV)
and the temperature compensation coefficient and the temperature compensation coefficient
and the temperature compensation coefficient
and the temperature compensation coefficient and the temperature compensation coefficient
(BETA)(BETA)
(BETA)
(BETA)(BETA)
• From measurement mode, press and hold the
MODE button until
ture unit are displayed on the lower LCD. Eg.
°C.
• Press the MODE button again to show the current
conversion factor. Eg.
• Press the SET/HOLD button to change the conver-
sion factor.
• Press the MODE button to show the current tem-
perature compensation coefficient
• Press the SET/HOLD button to change the tempera-
ture compensation coefficient β.
• Press the MODE button to return to normal mea-
surement mode.
Calibration procedureCalibration procedure
Calibration procedure
Calibration procedureCalibration procedure
• From measurement mode, press and hold the
MODE button until
LCD.
• Release the button and fill the cell cup with the
proper calibration solution: HI7031 (1413 µS/cm) for
HI 98321 and HI7030 (12.88 mS/cm) for HI 98322.
• Once the calibration has been automatically per-
formed, the LCD will display
meter will return to normal measurement mode.
• Since there is a known relationship between EC and
TDS readings, it is not necessary to calibrate the meter
in TDS. If the EC/TDS conversion factor is either 0.5
or 0.7, the meter will allow a direct calibration in
ppm by using the Hanna calibration solutions listed
below.
The
CAL tag on the LCD means that the meter is
calibrated.
To reset to the default calibrationTo reset to the default calibration
To reset to the default calibration
To reset to the default calibrationTo reset to the default calibration
To clear a previous calibration, press the MODE
button after entering the calibration mode. The lower
LCD will display
return to normal measurement mode. The
on the LCD will disappear. The meter will be reset to
the default calibration.
TEMP and the current tempera-
0.50 CONV.
β. Eg. 2.1 BETA.
CAL is displayed on the lower
OK for 1 second and the
ESC for 1 second and the meter will
TEMP
CAL symbol
BATTERY REPLACEMENTBATTERY REPLACEMENT
BATTERY REPLACEMENT
BATTERY REPLACEMENTBATTERY REPLACEMENT
The meter displays the remaining battery percentage
every time it is switched on. When the battery level is
below 5%, the
lights up to indicate a low battery condition. The batteries must be immediately replaced. If however the battery
level is so low as to cause erroneous reading, the Battery
Error Prevention System (BEPS) will automatically turn
the meter off.
ββ
β
ββ
T o change the batteries, remove the 4 screws located on
the bottom of the meter .
Remove the screw and the washer in the battery compartment and carefully replace the 4 batteries located in
the compartment while paying attention to their polarity.
Replace the washer and tighten the screw in the compartment; replace the bottom, making sure that the
gasket is properly seated in place, and tighten the screws.
Note: Batteries should only be replaced in a nonhazardous area using the battery type specified in this instruction manual.
- +
symbol on the bottom left of the LCD
CE DECLARATIONCE DECLARATION
CE DECLARATION
CE DECLARATIONCE DECLARATION
OF CONFORMITYOF CONFORMITY
OF CONFORMITY
OF CONFORMITYOF CONFORMITY
ACCESSORIESACCESSORIES
ACCESSORIES
ACCESSORIESACCESSORIES
HI 70030P 12.88 mS/cm @25ºC calibration solu-
HI 70031P 1413 µS/cm @25ºC calibration solu-
HI 70032P 1382 ppm @25ºC calibration solution,
HI 70038P 6.44 ppt @25ºC calibration solution, 20
HI 70442P 1500 ppm @25ºC calibration solution,
tion, 20 mL sachet (25 pcs)
tion, 20 mL sachet (25 pcs)
20 mL sachet (25 pcs)
mL sachet (25 pcs)
20 mL sachet (25 pcs)
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