Hanna Instruments HI 93102 User manual

Instruction Manual
HI 93102
Multiparameter
Turbidity &
Ion Specific Meter
www.hannainst.com

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PRELIMINARY EXAMINATION
Remove the instrument from the packing ma-
terial and examine it to make sure that no
damage has occurred during shipping. If there
is any damage, notify your Dealer.
HI 93102 is supplied complete with:
•Glass cuvet with cap
•Batteries (4 x 1.5V AA)
•Instruction manual
The HI 731327 complete maintenance kit is
also available, including:
•2 glass cuvets
•Primary calibration standards:
HI 93102-0 AMCO-AEPA-1 0 NTU* cali-
bration solution, 30 mL
HI 93102-20 AMCO-AEPA-1 20 NTU* cali-
bration solution, 30 mL
• HI 93703-50 cleaning solution, 230 mL
•Tissue for wiping cuvets
•Rugged carrying case
Note: Save all packing material until you are
sure that the instrument functions cor-
rectly. Any defective item must be re-
turned in its original packaging with
the supplied accessories.
* 1 NTU (Nephelometric Turbidity Unit) = 1 FTU (For-
mazine Turbidity Unit)
DearCustomer,
ThankyouforchoosingaHannaProduct.
Please read this instruction manual carefully
beforeusingtheinstrument.
Thismanualwillprovideyouwiththenecessary
informationforcorrectuseoftheinstrument,as
well as a precise idea of its versatility. If you
need more technical information, do not hesi-
tate to e-mail us at [email protected].
Thisinstrumentisincompliancewith direc-
tives.
TABLEOFCONTENTS
General Description .................................... 4
PrincipleofOperation .................................. 6
FunctionalDescription................................. 9
Specifications ........................................... 13
OperationalGuide ..................................... 14
Calibration................................................. 22
DiagnosticMode ....................................... 30
Logging with C 102.................................... 31
User-selectableAuto-off ............................ 33
BatteryReplacement ................................ 34
DiagnosticCodes...................................... 35
Accessories.............................................. 36
Warranty ................................................... 38
CEDeclarationof Conformity .................... 39

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There are eight keys for the different
operationals modes. The large Liquid Crystal
Display is dual-level: the upper level has four
digits and can display the measured param-
eter in hundredths. The lower level has three
characters and indicates current mode (e.g.
F CL for free chlorine or TR for turbidity).
Different LCD segments indicate low battery,
logging mode, date, time, etc.
A pure green LED has been utilized as a light
source for both turbidimetric and colorimetric
measurements. A silicon photocell is used to
receive transmitted light from colorimetric chan-
nel while another photocell receives scattered
light from the turbidimetric (nephelometric)
channel.
In order to measure colorimetric parameters,
all the operator has to do is zero the blank
sample and then add 1 packet of reagent (for
Bromine, Chlorine, Cyanuric Acid, Iodine and
Low Range Iron) or 0.2 mL of Phenol Red (for
pH). After placing the cuvet back in the meter
and pressing READ, the measurements are
shown directly on the LCD.
The instrument operates with four AA batter-
ies and may be operator-programmed to turn
itself off automatically after 10, 20, 30, 40, 50
or 60 minutes of inactivity.
HI 93102 and all accessories such as sample
vials, reagent pillows, primary standards, can
be easily stored in the optional carrying case.
GENERAL DESCRIPTION
The Hanna HI 93102 is a portable micropro-
cessor driven, multiparameter, turbidity and
ion specific meter. It measures Free & Total
Chlorine, Cyanuric Acid, pH, Iodine, Bromine,
Low Range Iron and Turbidity.
In the colorimetric mode, the user can select
either factory preprogrammed calibration set-
tings or calibrate the meter using customized
calibration values based on the concentration
or relative absorbance of the sample. Calibra-
tion data is also stored in a non-volatile
EEPROM.
In the turbidity mode, periodic recalibration of
the meter with primary standards according
to regulatory requirements or personal experi-
ence is suggested. Turbidity ranges are 0.00-
9.99 NTU and 10.0-50.0 NTU.
HI 93102 complies with G.L.P. Standards
(Good Laboratory Practice), that is:
• When switched on, the LCD displays all
segments (display check).
• Battery status is monitored during every
measurement cycle warning the user if the
batteries become weak.
In addition, HI 93102 will turn itself off
before low voltage causes erroneous read-
ings.
• It utilizes a real time clock and recalls
calibration data such as date, time and
calibration values.
To facilitate field tests, the meter provides a
logging mode. In this mode, the user can
store up to twenty five time-tagged measure-
ments in RAM and scroll the memory at any
time.

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Colorimetric Mode
The color of every object we see is deter-
mined by a process of absorption and emis-
sion of the electromagnetic radiation (light) of
its molecules.
Colorimetric analysis is based on the principle
that specific compounds react with others to
form a color, the intensity of which is
proportional to the concentration of the
substance being measured.
Block diagram of an ion specific measurement
When a substance is exposed to a beam of
light intensity Io, a portion of the radiation is
absorbed by the substance's molecules and
a radiation of intensity I, lower than Io, is
emitted.
The quantity of radiation absorbed is given by
the Lambert-Beer Law:
log Io/I= ελc d
Where log Io/I = Absorbance (A)
ελ= molar extinction coefficient of the
substance at wavelength λ
c = molar concentration of the
substance
d = optical distance light travels
through the sample
Since other factors are known, the concen-
tration "c" can be calculated from the color
intensity of the substance determined by the
emitted radiation I.
An LED (Light Emitting Diode) emits radiation
at a relatively narrow spectrum, supplying the
system with the intensity Io.
LED
EMITTED LIGHT
CUVET MICROPROCESSOR
LIGHT
DETECTOR
PRINCIPLE OF OPERATION
Turbidity Mode
HI 93102 has been designed to perform mea-
surements according to the USEPA’s 180.1
method and the Standard Method 2130B.
The instrument functions by passing a beam
of light through a vial containing the sample
being measured.
The light source is a Pure Green LED to
ensure that any interference caused by a
colored samples is minimized.
A sensor, positioned at 90° with respect to
the direction of light, detects the amount of
light scattered by the undissolved particles
present in the sample. The microprocessor
converts such readings into NTU* values.
NTU units are equal to FTU units. However,
there are other known measurement units for
turbidity, namely the Jackson Turbidity Unit
(JTU) based on the old method of Jackson's
candle, and Silica Unit (mg/L of SiO2). The
conversion table between these measurement
units is shown below:
JTU NTU/FTU SiO2 (mg/L)
JTU 1 19 2.5
NTU/FTU 0.053 1 0.13
SiO2 (mg/L) 0.4 7.5 1
*1 NTU = 1FTU

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FUNCTIONAL DESCRIPTION
1) Primary
LCD: The four-digit LCD shows
all segments for several
seconds when the meter
is switched on. It then dis-
plays four dashes to indi-
cate “ready to measure”.
It is also the area where
the date, time and value
of last calibration are
shown. In “Read” and
“Zero” mode, “SIP” is
shown to indicate “Sample
A substance absorbs a color complimentary
to the color it emits. For example, a
substance appears yellow because it absorbs
blue light. As a result, the Hanna meters use
LED’s with specific wavelengths to measure
samples.
The optical distance (d) is measured by the
internal diameter of the cuvet containing the
sample.
The photoelectric cell collects the radiation I
that is not absorbed by the sample and
converts it into an electric current.
The microprocessor converts the value into
the desired measuring unit and displays it on
the LCD.
The measurement process is done in two
phases: setting the meter to zero and actual
measurement.
The cuvet is an optical element and hence
has an important role in the measurement
process. Both the measurement and the
calibration cuvets must be optically identical
to provide the same measurement conditions.
It is also important that the surface of the
cuvet is clean and free from scratches or
dents, in order to avoid measurement
interference due to unwanted reflection and
absorption of light.
It is recommended that wherever possible the
cuvet walls are not touched by the operator.
Furthermore, in order to maintain the same
conditions during the zeroing and the
measuring phases, it is necessary to close
the cuvets to prevent any contamination.

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7) ON/OFF key: Turns the meter on and
off.
8) ZERO/ key: In ion specific (colorimet-
ric) mode, it zeros the
sample. In calibration and
diagnostic modes, it func-
tions as ENTER (not used
in turbidity mode).
9) READ/ key: Takes the measuremnt of
concentration/turbidity of
the sample which is shown
on the LCD. In diagnostic
or calibration mode, shifts
the flashing digit to the
right.
10) CAL key: If pressed during calibra-
tion, the calibration proce-
dure will be aborted and
the last calibration data will
be reinstated. If pressed
together with the ALT key
for less then 3 seconds,
the diagnostic mode will
be entered. If pressed to-
gether with the ALT key
again, the meter will quit
diagnostic mode. If
pressed for more then 3
seconds, an intermittent
“CAL” prompt will appear
on the upper LCD level
and the calibration proce-
dure is entered.
11) GLP/Abs key: In ion specific mode, it will
toggle concentration/ab-
sorbance readings on the
upper LCD. In turbidity
mode, date, time and the
two calibration values of
the current mode will be
In Progress”. The upper
level also indicates the
concentration or turbidity
of the sample, as well as
different diagnostic modes,
such as “-BA-” for low bat-
tery.
2) Secondary
LCD: The three-digit LCD shows
the current mode of mea-
surement that is “F CL”,
“tCL”, “CY”, “PH”, “Id”,
“Br”, “L FE”, “tr”, and di-
agnostic or calibration
modes, such as “d11”,
“2 Fn”, “5c1”.
3) DATE: Indicates that the upper
level of LCD is showing
the current date, the date
of last calibration or the
date of logged measure-
ment in memory.
4) TIME: Indicates that the upper
level of LCD is showing
the current time, the time
of last calibration or the
time of logged measure-
ment in memory.
5) LOBAT: Blinking segment warns
user of low battery volt-
age.
6) LOG: If intermittent, it indicates
that the user is in the scroll
mode viewing the logged
measurements. If fixed, it
indicates that the meter
is in the log mode and
every reading taken will be
stored in memory.

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HI93102
Range Turbidity 0.00 to 50.0 NTU*
Bromine 0.00 to 8.00 mg/L
Free Cl20.00 to 2.50 mg/L
Total Cl20.00 to 3.50 mg/L
CYS 0 to 80 mg/L
Iodine 0.0 to 12.5 mg/L
LR Iron 0.00 to 1.00 mg/L
pH 5.9 to 8.5
Resolution
Turbidity 0.01 and 0.1 NTU*
Bromine 0.01 mg/L
Free Cl20.01 mg/L
Total Cl20.01 mg/L
CYS 1 mg/L
Iodine 0.1 mg/L
LR Iron 0.01 mg/L
pH 0.1
Accuracy
Turbidity ±0.5 NTU* or ±5% (whichever greater)
Bromine ±0.08 mg/L; ±3%
Free Cl2±0.03 mg/L; ±3%
Total Cl2±0.03 mg/L; ±3%
CYS ±1 mg/L; ±15%
Iodine ±0.1 mg/L; ±5%
LR Iron ±0.02 mg/L; ±3%
pH 0.1 pH
Light Source PureGreen LED
Light Source Life Life of the instrument
Light Detector Two Silicon Photocells
Power Source 4 x 1.5V AA alkaline batteries
Battery Life 60 hours or 1000 measurements
Auto-off Selectable after 10, 20, 30,
40, 50 or 60 min. of non-use
Environment 0 to 50°C (32 to 122°F)
RH max 95% (non-condensing)
Dimensions 220 x 82 x 66 mm
(8.7 x 3.2 x 2.6")
Weight 510 g (1.1 lb.)
SPECIFICATIONS
*1 NTU = 1FTU
shown. If pressed in
time/date setup mode, the
meter will quit current
mode without making any
changes to current time/
date.
12) key Scrolls upwards through
the parameters to be mea-
sured. In calibration/diag-
nostic mode, increments
the blinking digit by one.
If pressed together with
ALT while the meter is in
logging mode, the upper
LCD will show the data
(date/time/value) in the
memory.
13) ALT key: Alternative functions.
14) key: Scrolls downwards through
the parameters to be mea-
sured. In calibration/diag-
nostic mode, decreases
the blinking digit by one.
If pressed together with
ALT while the meter is in
logging mode, the upper
LCD will show the current
lot number.

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CURRENT TIME/DATE RECALL
To recall current TIME/DATE press and hold
the ALTand READ keys together. The current
time and an intermittent “TIME” will be dis-
played.
Release the keys.
Press and hold the ALT and READ keys
again and the meter will show the current
date together with an intermittent “DATE”.
TURBIDITY MEASUREMENTS
Fill the vial with the sample. The
surface of the vial should be clean
and scratch free.
Turn the meter on. After the initialization rou-
tine, the LCD will show:
Use the and keys to set the lower level of
the LCD to turbidity (tr).
Insert the sample into the cuvet
holder and ensure that the
notch on the cap is positioned
securely into the groove.
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OPERATIONAL GUIDE
SET CURRENT TIME/DATE
To set or change the current time, turn on the
meter. After initialization routine, the LCD will
show:
Press and hold the ALT and GLP keys to-
gether. Display will show the current date in
MM.DD format (e.g. August 28 is shown as
08.28).
Release the keys. The month digits will blink.
Make the necessary adjustments with the
and keys. To skip to the day digits, press
the key.
After the adjustments, press the key. The
unit will store the newly set month-day data
in its EEPROM and will show the current
time by a 24 hour clock HH.MM format, e.g.
2:28 pm is:
Similarly, make the necessary adjustments
as described above and press . The newly
set up “month - day - hour - minute” data will
be stored in memory.
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The meter will show “SIP” for a few seconds
and then a zero indication:
For Cianuric Acid only, add the con-
tent of one packet of HI 93722 re-
agent to a beaker filled up to the
25mL mark with unreacted sample
up to the 25 mL mark. Stir gently
to mix and then fill the cuvet up to
1.5 cm (¾“) below the rim with 10
mL of the reacted sample.
Replace the cap, shake the cuvet and allow a
few seconds for color to develop. For best
results, wait 2½ mins. for Total Chlorine, Bro-
mine, Iodine, and 45 secs. for Cyanuric Acid.
Insert the reacted sample into the cuvet holder
and ensure that the notch on the cap is posi-
tioned securely into the groove. Press READ.
The meter will show “SIP” for a few seconds
and then the concentration:
1.5 cm
For pH, add 0.2 mL of
HI 93710-01: For Chlorine, Iodine and Bromine, add the
content of their re-
spective packet:
1 x
Press READ. The meter will intermittently
display “SIP” on the upper level of the LCD.
After a few seconds the display will show the
turbidity value, e.g. 5.34 NTU:
COLORIMETRIC MEASUREMENTS
Turn the meter on. After the initialization rou-
tine, the LCD will display:
Use the and keys to
choose the desired param-
eter:
F CL Free Chlorine t CL Total Chlorine
CY Cyanuric Acid PH pH
Id Iodine Br Bromine
L FE Iron
Measuring Chlorine, Cyanuric Acid, pH, Iodine,
Bromine
Fill the vial with the sample (blank).
The surface of the vial should be
clean and scratch free.
Insert the blank sample into the cuvet holder
and ensure that the notch on the cap is posi-
tioned securely into the groove. Press ZERO.

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Add the content of one packet of HI 93746
TPTZ reagent, close the cylinder and agitate
for 30 seconds.
Fill a cuvet with 10 mL of the
reacted sample up to 1.5 cm
(¾") below the rim and re-
place the cap. This is the
sample.
Insert the reacted sample into the cuvet holder
and make sure that the notch on the cap is
positioned securely into the groove. Wait 30”
and then press READ.
The meter will show “SIP” for about a few
seconds and then the concentration:
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3
6
9
30"
1.5 cm
Note: To review the relative absorbance of
the sample, wait until the concentra-
tion measurement is completed, and
then press GLP/Abs. The display will
show the absorbance in milliunits to-
Measuring Iron
Fill one graduated mixing cylin-
der up to the 25 mL mark with
deionized water.
Add the content of one packet of HI 93746
TPTZ reagent, close the cylinder and agitate
for 30 seconds. This is the blank.
Fill a cuvet with 10 mL of
the blank up to 1.5 cm (¾")
below the rim and replace
the cap.
Insert the blank into the cuvet holder and
make sure that the notch on the cap is
positioned securely into the groove. Press
ZERO.
The meter will show “SIP” for a few seconds
and then a zero indication:
Fill one graduated mixing cyl-
inder up to the 25 mL mark
with the sample.
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3
6
9
30"
1.5 cm