Hanna Instruments HI 93752 User manual

Instruction Manual
HI 93752
Calcium & Magnesium
High Range
ISM
www.hannainst.com ThisInstrumentisin
Compliancewith the CE Directives
HannaInstrumentsreservestherighttomodifythedesign,construction
andappearanceofitsproductswithoutadvancenotice.
WARRANTYWARRANTY
WARRANTYWARRANTY
WARRANTY
HI93752iswarrantedfor two years against defects in workman-
shipand materialswhenusedforits intendedpurposeandmaintained
accordingtoinstructions.
Thiswarranty islimitedto repairorreplacement freeofcharge.
Damages due to accident, misuse, tampering or lack of prescribed
maintenanceare not covered.
Ifserviceis required,contactthedealerfromwhom youpurchasedthe
instrument.Ifunderwarranty, report the model number, dateofpur-
chase,serialnumberandthe nature of the failure. Iftherepairisnot
coveredby the warranty,youwillbe notified ofthechargesincurred. If
theinstrumentistobereturnedtoHannaInstruments,firstobtaina
ReturnedGoodsAuthorizationNumber from the Customer Service de-
partmentand thensenditwith shipmentcostsprepaid.Whenshipping
anyinstrument, makesureitisproperly packagedforcompleteprotec-
tion.
Tovalidate yourwarranty,filloutandreturntheenclosedwarrantycard
within14 daysfromthedateofpurchase.
Allrightsare reserved. Reproduction inwholeor in part isprohibited
without the written consent of the copyright owner, Hanna Instru-
mentsInc.,Woonsocket, Rhode Island, 02895,USA.
DearCustomer,
Thank you for choosing a Hanna product. This manual will
provide you with the necessary information for the correct
operation 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 directives
EN 50081-1 and EN 50082-1.
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.
Each Ion Specific Meter is supplied complete with
• 9V Battery
• Two Sample Cuvets and Caps
• One Transport Cap
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 EXAMINATIONPRELIMINARY EXAMINATION
PRELIMINARY EXAMINATIONPRELIMINARY EXAMINATION
PRELIMINARY EXAMINATION
GENERAL DESCRIPTIONGENERAL DESCRIPTION
GENERAL DESCRIPTIONGENERAL DESCRIPTION
GENERAL DESCRIPTION
TheHI 93752 meter measures the calcium content in the 0
to 400 mg/L (ppm) range and the magnesium content in
the 0 to 150 mg/L (ppm) range in water and wastewater.
Themeter usesan exclusivepositive-locking systemto ensure
that the cuvet is in the same place every time it is placed
into the measurement cell.
The reagents are in liquid form and are supplied in bottles.
The amount of reagent is precisely dosed to ensure maxi-
mum repeatability.
Display codes aid the user in routine operations.
The meters have an auto-shut off feature that will turn the
instrument off after 10 minutes of non-use.
SPECIFICATIONSSPECIFICATIONS
SPECIFICATIONSSPECIFICATIONS
SPECIFICATIONS
SPECIFICATIONS
Range 0 to 400 mg/L (ppm) as Calcium
0 to 150 mg/L (ppm) as Magnesium
Resolution 1 mg/L
Accuracy ±10 mg/L ±5% of reading (Ca)
±3 mg/L ±3% of reading (Mg)
TypicalEMC ±1 mg/L
Deviation
Light Source Light Emitting Diode @ 470 nm
Method To determine Calcium: Adaptation of the
Oxalate method
To determine Magnesium: Adaptation of
the Calmagite method
Light Detector SiliconPhotocell
Environment 0 to 50°C (32 to 122°F);
max 95% RH non-condensing
Battery Type/Life1 x 9 volt/40 hours
Auto-Shut off After 10' of non-use
Dimensions 180 x 83 x 46 mm (7.1 x 3.3 x 1.8")
Weight 290 g (10 oz.).
REQUIRED REAGENTS
Code Description Quantity
- Buffer Reagent 4 drops
HI 93752A-0 Ca Calcium Buffer Reagent 7 mL
HI 93752B-0 Ca Calcium Oxalate Reagent 1 mL
HI 93752A-0 Mg Magnesium Buffer Reagent 1 mL
HI 93752B-0 Mg Magnesium Indicator 9 mL
Reagent
BATTERY REPLACEMENTBATTERY REPLACEMENT
BATTERY REPLACEMENTBATTERY REPLACEMENT
BATTERY REPLACEMENT
Battery replacement must only take place in a non-hazard-
ous area using a 9V alkaline battery.
Simply slide off the battery cover on the back of the meter.
Detach the battery from the terminals and attach a fresh
9V battery while paying attention to the correct polarity.
Replace the battery and the cover.
9V
SLIDE
OFF
This indicates that the meter is in a
ready state and zeroing can be per-
formed.
Sampling in Progress. This prompt ap-
pears each time the meter is performing
a measurement.
This indicates that the meter is in a
zeroed state and measurement can be
performed.
A zero reading was not taken. Insert a
sample before adding reagent and press
ZERO.
Under range. A blinking "0.00" indicates
that the sample absorbs less light than
the zero reference. Check the procedure
and make sure you use the same cuvet
for reference (zero) and measurement.
Over range. A flashing value higher than
themaximum concentrationreadable (see
specifications) indicates that the sample
absorbs too much light, meaning that
the concentration is too high. Dilute the
sample.
Light over range. The cuvet is not in-
serted correctly and an excess ambient
light is reaching the detector. If the cover
is properly installed, then contact your
dealer or the nearest Hanna Customer
Service Center.
Light under range. The zero sample is
too dark for proper zeroing. If this is not
the case, contact your dealer or the
nearest Hanna Customer Service Center.
The "V" indicates that the battery volt-
age is getting low and the battery needs
to be replaced.
This indicates that the battery is dead
and must be replaced.
Note: once this indication is displayed,
the meter will lockup. Change the bat-
tery to restart.
DISPLAY CODE GUIDEDISPLAY CODE GUIDE
DISPLAY CODE GUIDEDISPLAY CODE GUIDE
DISPLAY CODE GUIDE
V

MEASUREMENT PROCEDURE TO
DETERMINE CALCIUM
• Turn the meter on by pressing ON/OFF.
• When the LCD displays "- - -", it is
ready.
• SelectCalciumby press-
ing Ca/Mg. A "c" will
appearon theright cor-
ner of the display.
• Using the 5 mL syringe add exactly
3.00 mL of sample to the cuvet.
• Add 4
drops of
Buffer
Reagent.
• Use the pipette to fill the cuvet up to
the 10 mL mark with the HI 93752A-0
Ca reagent.
• Replace the cap
andinvertseveral
times to mix.
• Place the cuvet into the holder and
ensure that the notch on the cap is
positioned securely into the groove.
• Press ZERO and "SIP" will
appear on the display.
• Wait for a few seconds and the display
will show "-0.0-". Now the meter is ze-
roed and ready for measurement.
• Remove the cuvet.
• Using the 1 mL syringe,
add exactly 1 mL of the HI
93752B-0 Ca Oxalate re-
agent.Replace the capand
invert the cuvet 10 times
to mix.
• Wait for 5 minutes, then invert again the cuvet 10
times and after that reinsert the cuvet into the instru-
ment.
• Waitfor10seconds,press
READ and SIP will ap-
pear on the display.
• Theinstrument directly displays concentration in mg/L of
Calcium on the Liquid Crystal Display.
Note: To ensure accurate results, perform the tests at room
temperature, between 18°C and 28°C (65F to 83F).
Interferences: concentration reading
Acidity (as CaCO3) above 1000 mg/L lower
Alkalinity (as CaCO3) above 1000 mg/L higher
Magnesium (Mg2+) above 400 mg/L higher
MEASUREMENT PROCEDURE TO
DETERMINE MAGNESIUM
• Select Magnesium by pressing Ca/Mg. An
"m" will appear on the right corner of the
display.
• Using one 1 mL sy-
ringeadd exactly 1.00
mL of HI 93752A-0
Mg Buffer reagent to
the cuvet and use the
pipette to fill the cuvet
up to the 10 mL mark
withthe HI 93752B-0
Mg Indicator reagent.
• Replace the cap and
invert several times to
mix.
• Place the cuvet into the holder and
ensure that the notch on the cap is
positioned securely into the groove.
• Press ZERO and "SIP" will appear on the
display.
• Wait for a few seconds and the display
will show "-0.0-". Now the meter is ze-
roed and ready for measurement.
• Remove the cuvet.
• Using the other 1 mL syringe, add to the
cuvet exactly 0.5 mL of sample.
Note: Do not mix up the two syringes!
1 mL
0.5 mL
ofsample
Theinstructionlisted belowshouldbecarefullyfollowed during testing
toensurebestaccuracy.
• Donottouchthecuvetwallswithhands.
• Inordertomaintainthe same conditions during the zeroing and
themeasuringphases, itisnecessarytoclose thecuvettoprevent
anycontamination.
• Donot letthetestsamplestand toolongafterreagent isaddedor
accuracywill beaffected.
• Wheneverthecuvetisplacedintothemeasurementcell,it must
becompletelyfreeoffingerprints,oil or dirt. Wipe it thoroughly
withHI731318 or alint-freeclothpriortoinsertion.
• Itisimportantthatthesample does not contain any debris. This
TIPS FOR AN ACCURATETIPS FOR AN ACCURATE
TIPS FOR AN ACCURATETIPS FOR AN ACCURATE
TIPS FOR AN ACCURATE
MEASUREMENTMEASUREMENT
MEASUREMENTMEASUREMENT
MEASUREMENT
wouldcorruptthereadings.
• Itispossibletotakemultiplereadingsinarow,butitisrecom-
mendedthat azeroreadingbe takenforeachsampleandthatthe
samecuvet isusedforzeroingandmeasurement.
• Itis importanttodiscardthe sampleimmediatelyafterthereading
istaken becausetheglassmightbecomepermanentlystained.
• Shakingthe cuvet can generatebubbles in thesample, causing
higherreadings.Toobtainaccurate measurements, remove such
bubblesby swirlingorbygentlytappingthevial.
• Allthereaction timesreportedinthismanual arereferredto20°C
(68°F). As a general rule of thumb, they should be doubled at
10°C(50°F)andhalvedat30°C(86°F).
Recommendationsfor
Users
Beforeusingtheseprod-
ucts,makesurethatthey
are entirely suitable for
theenvironmentinwhich
theyareused.
Operation of these in-
struments in residential
area could cause unac-
ceptableinterferencesto
radioandTVequipments,
requiringtheoperatorto
take all necessary steps
tocorrectinterferences.
Anyvariationintroduced
by the user to the sup-
pliedequipmentmaydegradetheinstruments'EMCperformance.
Toavoiddamagesorburns,donotperformanymeasurementinmicrowaveovens.
ACCESSORIESACCESSORIES
ACCESSORIESACCESSORIES
ACCESSORIES
REAGENT SETS
HI 93752-01 Reagentsfor 100tests
OTHER ACCESSORIES
HI 710009 Bluerubberboot
HI 710010 Orangerubberboot
HI 721310 9Vbattery(10pcs)
HI 731318 Tissueforwipingcuvets(4 pcs)
HI 731321 Glasscuvets(4pcs)
HI 731325 Capsforcuvets(4pcs)
HI 740142 1mLgraduated syringe
HI 740143 1mLgraduatedsyringes (6pcs)
HI 740144 Pipettetip(6pcs)
HI 740157 Plasticrefillingpipette(20 pcs)
HI 93703-50 Cuvetscleaningsolution (230 mL)
C115-00300 5mLgraduatedsyringe
CE DECLARATIONCE DECLARATION
CE DECLARATIONCE DECLARATION
CE DECLARATION
OF CONFORMITYOF CONFORMITY
OF CONFORMITYOF CONFORMITY
OF CONFORMITY
IST93752 11/99
PRINTED IN PORTUGAL
3 mL
ofsample
1 mL
• Replace the cap and
invert several times to
mix. Wait for 15 sec-
onds.
• Reinsert the cuvet into the instru-
ment.
• Press READ and SIP will
appear on the display.
• The instrument directly displays concentration in mg/L of
Magnesium on the Liquid Crystal Display.
Interferences: concentration reading
Acidity (as CaCO3) above 1000 mg/L lower
Alkalinity (as CaCO3) above 1000 mg/L higher
Calcium(Ca2+) above 200 mg/L higher
Iron -- higher
Aluminum -- higher
Copper -- higher
FORBEST RESULTSBOTH FORCALCIUM ANDMAGNE-
SIUMDETERMINATION:
Intensely colored samples will cause interference, therefore
they should be adequately treated before performing the
test. Suspended matter in large amounts should be re-
moved by prior filtration.
ACCESSORIESFORCALCIUMANDMAGNESIUM
• 1 syringe (5 mL) with tip
• 3 syringes (1 mL) with tips
• 2 plastic pipettes
probable
level of liquid
taken up by
syringe
ZERO
OPERATIONAL GUIDEOPERATIONAL GUIDE
OPERATIONAL GUIDEOPERATIONAL GUIDE
OPERATIONAL GUIDE
ON
OFF
10 mL