Hanna Instruments HI 93102 Manuel utilisateur

Instruction Manual

HI 93102

Multiparameter

Turbidity &

Ion Specific Meter

www.hannainst.com

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

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.

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

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.

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.

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.

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.

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.

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.

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:

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.

30"

1.5 cm

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