Hanna Instruments HI 93740 User manual

Instruction Manual
HI 93740
Nickel Low Range ISM
http://www.hannainst.com ThisInstrumentisin
Compliancewith the CE Directives
HannaInstrumentsreservestherighttomodifythedesign,construction
andappearanceofitsproductswithoutadvancenotice.
WARRANTYWARRANTY
WARRANTYWARRANTY
WARRANTY
HI93740iswarrantedfor 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
The HI 93740 meter measures the nickel content in water
and wastewater in the 0.000 to 1.000 mg/L (ppm) range.
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 and powder form and are
supplied in bottles and in packets. The amount of reagent
is precisely dosed to ensure maximum 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 0.000 to 1.000 mg/L
Resolution 0.001 mg/L
Accuracy ±0.01 mg/L ±7% of reading
TypicalEMC ±0.001 mg/L
Deviation
Light Source Light Emitting Diode @ 555 nm
Method Adaptation of the 1-(2-pyridylazo)-2-naphtol
(PAN) method. The reaction between nickel and
the reagent causes an orange tint in the sample
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
HI93740A-0 Phthalate phosphate 2 packets
HI93740B-0 0.3% PAN indicator 2 mL
HI93740C-0 EDTA 2 packets
HI93703-51 Dispersing Agent 4-6 drops (only
when necessary, see note)
REAGENT SETS
HI93740-01 Reagents (100pcsofHI93740A-0,100mL of
HI93740B-0,100 pcs of HI93740C-0,20 mL
ofHI93703-51)
HI93740-03 Reagents (300pcsofHI93740A-0,300mL of
HI93740B-0,300 pcs of HI93740C-0,60 mL
ofHI93703-51)
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
themaximumconcentrationreadable(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

OPERATIONAL GUIDEOPERATIONAL GUIDE
OPERATIONAL GUIDEOPERATIONAL GUIDE
OPERATIONAL GUIDE
MEASUREMENT PROCEDURE
• Turn the meter on by pressing ON/OFF.
Note: for best results perform your tests
between20-24°C.
• When the LCD displays "- - -", it is
ready.
• Fill one graduated beaker with 25 mL of
deionized water (blank) and another one
with 25 mL of sample.
• Add the content of one packet of
HI93740A phthalate-phosphate re-
agent to each beaker. Cap and shake
gently until the reagent is dissolved.
Note: If sample contains iron (Fe3+), it is important that
all powder be dissolved completely before continuing
with following step.
• Add 1 mL of HI 93740B 0.3%
PAN solution to each beaker, swirl
to mix and then wait for 15 min-
utes.
• Add one packet of HI 93740C EDTA
reagent to each beaker, cap and
swirlto mixuntil completedissolution.
• Fill one cuvet up to 1.5 cm (¾") below
the rim with 10 mL of the blank.
• Placethe cuvetinto theholder
and ensure that the notch on
the cap is positioned securely
into the groove.
• Press ZERO and "SIP" will appear on the display.
1.5 cm
ON
OFF
ZERO
1.5 cm
• Wait for a few seconds and the dis-
play will show "-0-". Now the meter
is zeroed and ready for measurement.
• Fill a second cuvet up to 1.5 cm (¾")
below the rim with 10 mL of the
reacted sample.
• Insert the second cuvet into the
instrument.
• Press READ DIRECT and "SIP" will appear during mea-
surement.
• Theinstrument directly displays concentration in mg/L of
nickel on the Liquid Crystal Display.
Note: a temperature above 30°C may cause turbidity. In
this case, before zeroing and taking readings, add
2-3 drops of Dispersing Agent (HI93703-51) to each
cuvetandswirl until complete dissolution of turbidity.
INTERFERENCES
Interference may be caused by:
Co2+ must not be present
Fe2+ must not be present
Al3+ above 32 mg/L
Ca2+ above 1000 mg/L (as CaCO3)
Cd2+ above 20 mg/L
Cl–above 8000 mg/L
Cr3+ above 20 mg/L
Cr6+ above 40 mg/L
Cu2+ above 15 mg/L
F–above 20 mg/L
Fe3+ above 10 mg/L
K+above 500 mg/L
Mg2+ above 400 mg/L
Mn2+ above 25 mg/L
Mo6+ above 60 mg/L
Na+above 5000 mg/L
Pb2+ above 20 mg/L
Zn2+ above 30 mg/L
The instruction listed below should be carefully followed
during testing to ensure best accuracy.
• Do not touch the cuvet walls with hands.
• In order to maintain the same conditions during the
zeroing and the measuring phases, it is necessary to
close the cuvet to prevent any contamination.
• Do not let the test sample stand too long after reagent
is added or accuracy will be lost.
• Whenever the cuvet is placed into the measurement cell,
it must be completely free of fingerprints, oil or dirt.
Wipe it thoroughly with HI 731318 or a lint-free cloth
prior to insertion.
• It is important that the sample does not contain any
debris. This would corrupt the readings.
• It is possible to take multiple readings in a row, but it
is recommended that a zero reading be taken for each
sample and that the same cuvet is used for zeroing and
measurement.
• It is important to discard the sample immediately after
the reading is taken because the glass might become
permanently stained.
• Shaking the cuvet can generate bubbles in the sample,
causing higher readings. To obtain accurate measure-
ments, remove such bubbles by swirling or by gently
tapping the vial.
• All the reaction times reported in this manual are
referred to 20°C (68°F). As a general rule of thumb,
they should be doubled at 10°C (50°F) and halved at
30°C(86°F).
TIPS FOR AN ACCURATETIPS FOR AN ACCURATE
TIPS FOR AN ACCURATETIPS FOR AN ACCURATE
TIPS FOR AN ACCURATE
MEASUREMENTMEASUREMENT
MEASUREMENTMEASUREMENT
MEASUREMENT
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
SLID
E
OFF
RecommendationsforUsers
Before using these products, make sure that they are entirely suitable for the environ-
mentinwhichtheyareused.
Operationoftheseinstrumentsinresidentialareacouldcauseunacceptableinterferences
toradioandTV equipments, requiring the operatortotakeallnecessary steps to correct
interferences.
Any variation introduced by the user to the supplied equipment may degrade the
instruments'EMCperformance.
Toavoiddamagesorburns,donotperformanymeasurementinmicrowaveovens.
ACCESSORIESACCESSORIES
ACCESSORIESACCESSORIES
ACCESSORIES
REAGENT SETS
HI93740-01 Reagents (100pcs ofHI93740A-0, 100mLof
HI93740B-0,100pcs ofHI93740C-0, 20mL
ofHI93703-51)
HI93740-03 Reagents (300pcs ofHI93740A-0, 300mLof
HI93740B-0,300pcs ofHI93740C-0, 60mL
ofHI93703-51)
OTHER ACCESSORIES
HI710009 Blue rubber boot
HI710010 Orange rubber boot
HI721310 9V battery (10 pcs)
HI731318 Tissue for wiping cuvets (4 pcs)
HI731321 Glass cuvets (4 pcs)
HI731325 Caps for cuvets (4 pcs)
HI93703-50 Cuvets cleaning solution (230 mL).
CE DECLARATIONCE DECLARATION
CE DECLARATIONCE DECLARATION
CE DECLARATION
OF CONFORMITYOF CONFORMITY
OF CONFORMITYOF CONFORMITY
OF CONFORMITY
IST93740R1 11/98
PRINTED IN PORTUGAL