Hanna Instruments HI 93753 User Manual
Instruction Manual
HI 93753
Chloride ISM
www.hannainst.com
WARRANTYWARRANTY
WARRANTY
WARRANTYWARRANTY
HI 93753 is warranted for two years against defects in workmanship and materials when used for its 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.
This Instrument is in
Compliance with the CE Directives
Dear Customer,
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 tech@hannainst.com.
This instrument is in compliance with directives.
PRELIMINARY EXAMINATIONPRELIMINARY EXAMINATION
PRELIMINARY EXAMINATION
PRELIMINARY EXAMINATIONPRELIMINARY EXAMINATION
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 cuvettes and caps
• One transport cap
Note: Keep all packing material until the instrument has
been observed to function correctly. Any defective item
must be returned in its original packing.
GENERAL DESCRIPTIONGENERAL DESCRIPTION
GENERAL DESCRIPTION
GENERAL DESCRIPTIONGENERAL DESCRIPTION
The HI 93753 meter measures the chloride (Cl–) content in
water and wastewater in the 0 to 20 mg/L (ppm) range.
The meter uses an exclusive positive-locking system to ensure
that the cuvet is in the same position 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 maximum repeatability.
Display codes aid the user in routine operations.
The meter has an auto-shut off feature that will turn the
instrument off after 10 minutes of non-use.
SPECIFICATIONSSPECIFICATIONS
SPECIFICATIONS
SPECIFICATIONSSPECIFICATIONS
SPECIFICATIONS
Range 0.0 to 20.0 mg/L
Resolution 0.1 mg/L
Accuracy ±0.5 mg/L±6% of reading
Typical EMC ±0.1 mg/L
Deviation
Light Source Light Emitting Diode @ 470 nm
Method Adaptation of the mercury(II)
thiocyanate method. The chloride ion
displaces thiocyanate ion from
mercury(II). The iron(III) present forms
with thiocyanate an orange colored
complex. The intensity of color is
proportional to the chloride ion
concentration.
Light Detector Silicon Photocell
Environment 0 to 50°C (32 to 122°F);
max 95% RH non-condensing
Battery Type/Life 1 x 9 volt/40 hours
Auto-Shut off After 10' of non-use
Dimensions 80 x 83 x 46 mm (7.1 x 3.3 x 1.8")
Weight 290 g (10 oz.)
REQUIRED REAGENTS
Code Description Quantity
HI 93753A-0 Displacing Reagent 1.0 mL
HI 93753B-0 Complexing Reagent 1.0 mL
REAGENT SETS
HI 93753-01 Reagents for 100 tests and two 1 mL syringes
HI 93753-03 Reagents for 300 tests and six 1 mL syringes
DISPLAY CODE GUIDEDISPLAY CODE GUIDE
DISPLAY CODE GUIDE
DISPLAY CODE GUIDEDISPLAY CODE GUIDE
This indicates that the meter is in a
ready state and zeroing can be performed.
Sampling in Progress. This prompt appears 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
the maximum range (see specifications)
indicates that the sample absorbs too
much light and that the concentration is
too high. Dilute the sample.
Light over range. The cuvet is not inserted 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 voltage 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 battery to restart.
OPERATIONAL GUIDEOPERATIONAL GUIDE
E
OPERATIONAL GUIDE
OPERATIONAL GUIDEOPERATIONAL GUIDE
MEASUREMENT PROCEDURE
• Turn the meter on by pressing
ON/OFF.
ON
OFF
• When the LCD displays "- - -", it is
ready.
• Fill one cuvette (#1) with 10 mL
of distilled water (up to the mark).
• Fill another cuvette (#2) with 10
mL of sample (up to the mark).
10 mL
# 1
10 mL
# 2
Note: for low chloride ions
concentration, rinse the cuvette a couple of times with
sample before filling it with 10 mL of sample (up to the
mark).
Note: for most accurate results, use two graduated
pipettes to deliver exactly 10 mL of distilled water and
10 mL of sample to the cuvets.
• Using the 1 mL syringe, add 0.5 mL of HI 93753A-0
Displacing Reagent to each cuvet.
# 1 # 2
Note: to dose exactly 0.5 mL of reagent with the
syringe, push the plunger completely into the syringe
and insert the tip into the HI 93753A-0 Displacing
Reagent bottle. Pull the plunger out until the lower
edge of the seal is on the 0.0 mL mark of the syringe.
Then hold the syringe above the cuvet and push the
plunger down to the 0.5 ml mark.
• Replace the caps and mix each
cuvet by turning the cuvette upside
down for approximately 30 seconds.
• Remove the caps and use the second 1 mL syringe to
add 0.5 mL of HI 93753B-0 Complexing Reagent to
each cuvet.
# 1 # 2
• Replace the caps and mix each
cuvet by turning the cuvette
upside down for approximately
30 seconds.
• Place the cuvet with the reacted
# 1
distilled water (#1) into the
instrument.
• Press READ TIMED and the display will show the countdown
prior to zeroing the blank or, alternatively, wait for 2
minutes and press ZERO. In both cases "SIP" will
appear during measurement.
READ
TIMED
ZERO
• Wait for a few seconds and the
display will show "-0.0-”. Now
the meter is zeroed and ready
for measurement.
• Remove the cuvette.
# 2
• Place the other cuvet with the
reacted sample (#2) into the
instrument.
• Press READ DIRECT and "SIP" will blink on the LCD
during measurement.
• The instrument directly displays concentration in mg/L of
chloride on the Liquid Crystal Display.
• To convert the reading to mg/L of Sodium Chloride
(NaCl), multiply the reading by a factor of 1.65.
INTERFERENCES
The pH of sample after addition of reagents should be about
2. For alkaline samples, neutralize before adding reagents.
Intensely colored samples will cause interference, therefore
they should be adequately treated before performing the
test. Suspended matter in large amounts should be removed by prior filtration.
ACCESSORIES
• 2 syringes (1 mL), included in the HI 93753 reagents
set.
TIPS FOR AN ACCURATETIPS FOR AN ACCURATE
TIPS FOR AN ACCURATE
TIPS FOR AN ACCURATETIPS FOR AN ACCURATE
MEASUREMENTMEASUREMENT
MEASUREMENT
MEASUREMENTMEASUREMENT
The instructions below should be carefully followed during
testing to ensure best accuracy.
• Do not touch the cuvette walls with your fingers.
• In order to maintain the same conditions during the
zeroing and the measuring phases, it is necessary to
close the cuvette to prevent any contamination.
• Do not let the test sample stand too long after adding
the reagents or accuracy will be compromised.
• Whenever the cuvette 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 cuvette 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 cuvette can generate bubbles in the sample,
causing higher readings. To obtain accurate measurements, 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).
BATTERY REPLACEMENTBATTERY REPLACEMENT
BATTERY REPLACEMENT
BATTERY REPLACEMENTBATTERY REPLACEMENT
Battery replacement must only take place in a non-hazardous 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. Re-
9V
SLID
OFF
place the battery and the cover.
ACCESSORIESACCESSORIES
ACCESSORIES
ACCESSORIESACCESSORIES
REAGENT SETS
HI 93753-01 Reagents for 100 tests
HI 93753-03 Reagents for 300 tests
OTHER ACCESSORIES
HI 710009 Blue rubber boot
HI 710010 Orange rubber boot
HI 721310 9V battery (10 pcs)
HI 731318 Tissue for wiping cuvets (4 pcs)
HI 731321 Glass cuvettes (4 pcs)
HI 731325 Caps for cuvettes (4 pcs)
HI 93703-50 Cuvettes cleaning solution (230 mL).
CE DECLARATIONCE DECLARATION
CE DECLARATION
CE DECLARATIONCE DECLARATION
OF CONFORMITYOF CONFORMITY
OF CONFORMITY
OF CONFORMITYOF CONFORMITY
Recommendations for
Users
Before using these products,
make sure that they are
entirely suitable for the
environment in which they
are used.
Operation of these
instruments in residential
area could cause
unacceptable 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 equipment may degrade the
instruments' EMC performance.
To avoid damages or burns, do not perform any measurement in microwave ovens.
IST93753R3 09/03
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