Hanna Instruments HI 93114 User Manual

Instruction Manual

HI 93114

Turbidity & Chlorine

Measurements

www.hannainst.com

Dear Customer,
Thank you for choosing a HANNA instruments

product.
Please read this instruction manual carefully

before using the instrument.
This manual will provide you with the necessary

information for the correct use of the instrument,
as well as a precise idea of its versatility.

For any additional technical information, do not
hesitate to e-mail us at [e-mail].

This instrument is in compliance with the
directives.

TABLE OF CONTENTS

Preliminary Examination ............................. 3

General Description.................................... 4

Principle of Operation ................................. 6

Functional Description ................................ 9

Specifications ........................................... 12

Operational Guide ..................................... 13

Calibration................................................. 19

Diagnostic mode ....................................... 27

PRELIMINARY EXAMINATION

®

Remove the instrument from the packing ma­terial and examine it to make sure that no
damage has occurred during shipping.
If there is any damage, immediately notify
your dealer.

HI 93114 is supplied complete with:

• Glass cuvet with cap

• Batteries (4 x 1.5V AA)

• Instruction manual

An optional starter kit HI 731327 is also avail­able, complete with:

• 2 glass cuvets with caps

• Calibration standards HI 93102-0 (AMCO-

AEPA-1 @0 NTU* solution, 30 mL bottle)
and HI 93102-20 (AMCO-AEPA-1 @20
NTU* solution, 30 mL bottle)

• HI 93703-50 cuvet cleaning solution

• Tissue for wiping cuvets

• Rugged carrying case

Note: Save all packing material until you are

sure that the instrument functions cor­rectly. Any defective item must be re­turned in its original packaging with
the supplied accessories.

Logging ..................................................... 28

User-selectable Shutdown......................... 30

Battery Replacement ................................ 31

Diagnostic Codes...................................... 32

Accessories.............................................. 33

Warranty ................................................... 34

CE Declaration of Conformity .................... 35

2

* 1 NTU (Nephelometric Turbidity Unit) = 1 FTU

(Formazine Turbidity Unit)

3

GENERAL DESCRIPTION

With the hand held HI 93114, three important
parameters in water quality analysis are at your
fingertips. Free and total chlorine measure­ments and US EPA compliant turbidity mea­surements are performed quickly and reliably
with this lab-grade microprocessor-based field
instrument.

HI 93114 is particularly useful for potable water
measurements and municipalities.

With HI 93114 measurements can be per­formed using either concentration or relative
absorbance of the sample depending on the
requirements of the application.

HI 93114 can be calibrated using the factory
preprogrammed calibration points or can be
custom calibrated when in colorimetric mode.

This rugged instrument has been engineered to
offer all the sophistication and reliability of
benchtop laboratory instrumentation in the size
of a handheld meter.

HI 93114 complies with GLP 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, the
meter will turn itself off before low voltage
causes erroneous readings

• It utilizes a real time clock and recalls
calibration data such as date, time and
calibration values

The large dual-level display can show the
measured parameter on the main part, while
the lower level indicates current mode (e.g.
“F CL” for free chlorine or “TR” for turbidity).
Additional symbols show low battery condi­tion, logging mode, date, time, etc.

A pure green LED is utilized as light source
for both turbidimetric and colorimetric mea­surements. A silicon photocell receives the
transmitted light from colorimetric channel,
while another photocell detects the scattered
light from the turbidimetric (nephelometric)
channel.

In order to measure chlorine parameters, it is
necessary to do the zero with the blank
sample, and then add 1 packet of reagent.
After placing the cuvet back in the meter and
pressing READ, the measurement is shown
directly on the LCD.

The instrument also features an automatic
shut-off with user-selectable delay at 10, 20,
30, 40, 50 or 60 minutes.

To facilitate field tests, the meter provides a
logging mode for storing up to 25 measure­ments along with time and date information
for retrieval at a later date.

4

5

LED

CUVET MICROPROCESSOR

LIGHT

PRINCIPLE OF OPERATION

Turbidity Mode

HI 93114 has been designed to perform mea­surements 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.

Colorimetric Mode

The color of every object we see is deter­mined by a process of absorption and emis­sion 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.

EMITTED LIGHT

Block diagram of an ion specific measurement

DETECTOR

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 = ελ c d

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 = 1 FTU

6

Where log Io/I = Absorbance (A)

ε

= molar extinction coefficient of the

λ

substance at wavelength λ

c = molar concentration of the

substance

d = optical distance light travels

through the sample

Since other factors are known, the concen­tration "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.

7

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.

FUNCTIONAL DESCRIPTION

1) Primary LCD:
When the meter is switched on, the LCD

shows all segments for a few seconds.
It then displays four dashes to indicate

“ready to measure”.
In “Read” and “Zero” mode, “SIP” is shown

to indicate “Sample In Progress”.
The upper level also indicates the concen-

tration or turbidity value of the sample, as
well as different diagnostic modes, such
as “-BA-” for low battery.

8

9

2) Secondary LCD:
The three-digit lower level shows the cur-

rent measurement mode (“F CL”, “tCL”, or
“tr”), and diagnostic or calibration modes,
such as “d11”, “2 Fn”, “5 c1”.

3) DATE: Indicates that the main LCD

is showing the current date,
the date of last calibration or
the date of logged measure­ment in memory.

4) TIME: Indicates that the main LCD

is showing the current time,
the time of last calibration or
the time of logged measure­ment in memory.

5) LOBAT: Blinks to warn the user of low

battery voltage.

6) LOG: Blinks to indicate that the

meter is in the scroll mode
viewing the logged data.

If fixed, it indicates that the
meter is in the log mode and
every reading will be stored
in memory.

7) ON/OFF key:Turns the meter on and off.

8) ZERO/ key: In ion specific mode, it ze-

ros the sample.
In calibration and diagnostic

modes, it works as ENTER.
In turbidity mode, it is not

used.

9) READ/ key: Takes concentration/tur-

bidity measurement of the
sample.

In diagnostic or calibration
mode, shifts the flashing digit
to the right.

10

10) CAL key: If pressed during calibration,
the calibration procedure will
be aborted and the last cali­bration data will be retrieved.

If pressed together with the
ALT key for less then 3 sec­onds, the diagnostic mode will
be entered.

If pressed together with the
ALT key again, the meter will
quit diagnostic mode.

If pressed for more then 3
seconds, a blinking “CAL” will
appear and the calibration
procedure is entered.

11) GLP/Abs key: In ion specific mode, it will
toggle concentration/absor­bance readings on main LCD.

In turbidity mode, GLP data
(date, time and the 2 calibra­tion values) will be shown.

If pressed in time/date setup
mode, the meter will quit cur­rent mode without making any
change.

12) key Scrolls upwards through the
parameters to be measured.

In calibration and diagnostic
modes, increments the blink­ing digit by one.

If pressed together with ALT
while the meter is in logging
mode, the upper LCD will
show the stored data (date,
time, value).

13) ALT key: Activates alternative functions.

14) key: Scrolls downwards through the
parameters to be measured.

11

In calibration and diagnostic
modes, 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.

SPECIFICATIONS

HI 93114

Range Turbidity 0.00 to 50.0 NTU*

Resolution

Accuracy

Free & Total Cl

Light Source Pure green LED
Light Source Life Life of the instrument
Light Detector Two silicon photocells
Battery Type 4 x 1.5V AA alkaline
Battery Life 60 hours or 1000 measurements
Auto-off Selectable after

Environment 0 to 50°C (32 to 122°F);

Dimensions 220 x 82 x 66 mm

Weight 510 g (1.1 lb.)

Free Cl

Free Cl

2
2

2
2

2

Total Cl

Turbidity 0.01 and 0.1 NTU*

Total Cl

Turbidity ±0.5 NTU* or ±5% (whichever greater)

0.00 to 2.50 mg/L

0.00 to 3.50 mg/L

0.01 mg/L

0.01 mg/L

±0.03 mg/L or

±3% (whichever greater)

10, 20, 30, 40, 50 or 60 minutes

RH max 95% non-condensing

(8.7 x 3.2 x 2.6")

* 1 NTU = 1 FTU

12

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 to­gether. 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.

13

CURRENT TIME/DATE RECALL

To recall current TIME/DATE press and hold
the ALT and READ keys together. The cur­rent time and an intermittent “TIME” will be
displayed.

+

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 rou­tine, the LCD will show:

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 rou­tine, the LCD will display:

Use the and keys to
choose the desired pa­rameter:

F CL Free Chlorine t CL Total Chlorine

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.

14

Measuring Chlorine

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 positioned
securely into the groove. Press
ZERO.

15

The meter will show “SIP” for a few seconds
and then a zero indication:

For the Free or Total Chlorine add the con­tent of its respective packet:

1 x

Replace the cap and shake the cuvet. For
best results wait 2½ mins. for Total Chlorine.
Insert the reacted sample into the cuvet holder
and ensure that the notch on the cap is posi­tioned securely into the groove. Press READ.

The main LCD will show
four dashes and “d 00”
is displayed on the
lower part, with the sec­ond “0” flashing:

Using the , and
keys change the lower
row of the display to
show “d 11”:

Press the key. This key is also used as a
toggle between USER (USR) and FACTORY
(FCT) programmed functions. Select the USER
mode (if necessary by pressing the key
more than once):

Press ALT and CAL until four dashes are
displayed on the upper display and “# fn” are
shown in the lower part of the LCD.

The meter will show “SIP” for a few seconds
and then the concentration:

Measurements in user-customized mode

Note: The meter must be calibrated for this

purpose. Follow the 2 point procedure
on page 26 before proceeding.

Turn the meter on, and press both ALT and
CAL buttons.

+

16

Using the and keys select the number
from 0 to 1 where the appropriate calibration
data have been stored.
Add the appropriate reagent into the blank
sample cuvet. Shake and allow a few sec­onds for color to develop.

17

Insert the reacted sample into the cuvet holder
and make sure that the notch on the cap is
positioned securely into the groove. Press
READ.

The meter will first show “SIP” for a few
seconds and afterwards the sample concen­tration:

CALIBRATION

TURBIDITY CALIBRATION

The meter should be properly calibrated with
a standard prepared as described in USEPA
method 180.1.

Span calibration

To calibrate the span of the meter,
fill the cuvet with the primary tur­bidity formazine standard of
50NTU.

Inspect and clean thoroughly the
surface of the vial.

Shake the standard vigorously for
a few seconds and wait a few
minutes for the bubbles to disap­pear.

Turn the meter on and press both ALT and
CAL momentarily.

+

The LCD will show four
dashes on the upper
and “d 00” on the lower
part of the LCD with
the second “0” blinking.

18

Using the , and
keys change the lower
row of the display to
show “d 21”.

Insert the previously
prepared 50 NTU stan­dard into the cuvet
holder and make sure
that the notch on the
cap is positioned se­curely into the groove.

Press .

19

The display will blink
“-Lt-” for several sec­onds, indicating that the
LED is being adjusted
for the turbidimetric
channel.

Afterwards, a sequence of numbers between

-511 to 512 will appear on the upper part of
the LCD indicating different levels of LED light
intensity.

In approximately one minute, the adjustment
will be made and the calibration data stored
in the non-volatile memory.

The display will show four
dashes again indicating
the end of the span cali­bration procedure.

Press the ALT and CAL
keys together again to
leave the diagnostic mode.

Two-point customized calibration

To enter the turbidity calibration mode, the
meter should be in “tur­bidity” mode.

Use the and keys
to set the lower level of
the LCD to “tr”.

To enter the calibration mode, press and hold
the ALT and CAL keys together for at least
three seconds. The upper display will start
flashing “CAL” for approximately 3 seconds.

+

+

If the CAL key is not
pressed, the upper dis­play will show “----”, in­dicating that calibration
mode was not entered. In which case, hold
down the ALT and CAL keys together for 3
seconds to restart the procedure.

After entering the cali­bration mode, the dis­play will show the first
point of the previous
calibration. The most
significant digit will also be blinking.

Using the , , keys, set the turbidity of
first calibration standard (from 0.00 to 50.0 NTU).

Insert the standard vial into the cuvet holder
and ensure that the notch is positioned se­curely into the groove. Press the key. The
display will indicate Sample In Progress (SIP).

After the first calibra­tion point is memo­rized, the LCD will indi­cate the second point
of the previous calibration with the most sig­nificant digit blinking.

Using the , , keys, set the turbidity of the
second calibration standard (from 0.00 to 50.0
NTU). Insert the standard into the cuvet holder
and make sure that the notch is positioned
securely into the groove. Press the key.
The display will indicate “SIP” again.

To confirm entry into the calibration
mode, press the CAL key again
while “CAL” is blinking.

20

21

After the second calibration point is memo­rized, the unit will store the calibration data
together with time and date in the EEPROM
while intermittently indicating “CAL” and “Stor”
for several seconds.

Subsequently, the up­per display will show
“----”, indicating that the
meter is calibrated and
ready to measure turbidity of an unknown
sample.

By pressing CAL during calibration,
user can quit the calibration mode
at any time without changing the
previously stored calibration data.

COLORIMETRIC CALIBRATION

Zero calibration

To calibrate the span of the meter, fill the
cuvet with a clean deionized water sample.
Inspect and thoroughly clean the surface of
the vial.

Turn the meter on and press both ALT and
CAL momentarily.

+

The display will show
four dashes and “d 00”.
The second “0” will blink
to allow the user to
make a selection.

22

Using , , keys set
the lower part to “d 31”.

Insert the previously prepared deionized wa­ter standard into the cuvet holder and make
sure that the notch on the cap is positioned
securely into the groove. Press the key.

The display will blink
“-Lc-” for several sec­onds, indicating that
adjustment of the LED
for the colorimetric measurements is in
progress.

After this, a sequence of numbers between

-511 to 512 will appear on the upper LCD

indicating the different levels of LED light
intensity. In approximately one minute, the
adjustment will be made and the calibration
data will be stored in the non-volatile memory.

Display will show four
dashes again indicating
the end of the zero cali­bration procedure.

Press the ALT and CAL
keys again to leave the
diagnostic mode.

Two-point customized calibration

To enter the colorimetric calibration mode, press
momentarily both the ALT and CAL keys. The
LCD will show four dashes and “d00”.

+

+

23

Using the and keys,
set the lower part of
the LCD to “d 11” and
then press the key.

The key is used as a toggle function in
this mode and allows the user to select be­tween USER (USR) or FACTORY (FCT) pro­grammed functions.

Select the USER mode and press ALT and
CAL keys together to leave the diagnostic
mode. The display of the meter will indicate
four dashes together with a number 0 or 1 on
the lower part of the LCD.

+

Press and hold the ALT and CAL keys to­gether for at least three seconds. The upper
display will start flashing “CAL” for approxi­mately three seconds.

+

To confirm entry into the calibration
mode, press the CAL key again
while “CAL” is still blinking.

If the CAL key is not
pressed, the upper row
of the display will show
“----”, indicating that the
calibration mode was
not entered. In which case, hold down the
ALT and CAL keys together for 3 seconds to
restart the procedure.

After entering the cali­bration mode, the dis­play will show the first
point of the previous
calibration with the most
significant digit blinking.

Using the , and keys, choose the
concentration of the first calibration standard.

Insert the known standard into the cuvet holder
and make sure that the notch is positioned
securely into the groove. Press the key.
The display will indicate sample in progress.

After the first calibra­tion point is memo­rized, the LCD will indi­cate the second point
of the previous calibration with the most sig­nificant digit blinking.

Using the , , keys, choose the known
concentration of the second calibration stan­dard.

Insert the standard into the cuvet holder and
make sure that the notch is positioned se­curely into the groove. Press the key. The
display will blink “SIP” again.

After the second calibration point is memo­rized, the unit will store the calibration data,
time and date in the EEPROM while intermit­tently indicating “CAL” and “Stor” for several
seconds.

24

25

Subsequently, the up­per display will show
“----”, indicating that the
meter is calibrated and
ready to measure the
concentration of an un­known sample.

By pressing the CAL key dur­ing calibration, the calibration
mode can be exited at any time
without changing the previously
stored calibration data.

DIAGNOSTIC MODE

HI 93114 facilitates operations by providing a

diagnostic mode. In this mode, user can set
or verify different parameters necessary to
ensure optimum performance of the meter.
To enter the diagnostic mode, turn the meter
on and momentarily press ALT and CAL to­gether. The display will show four dashes to­gether with “d 00”:

+

Using the , and keys, select the re­quired diagnostic mode and press the key.
The meter will execute one of the following
user-diagnostic functions:

10 Customizes automatic shutdown
11 Selects User or Factory functions
12 Turns logging mode on or off
21 Calibrates span in turbidimetric mode
31 Calibrates span in colorimetric mode

40 Clears the logged memory

26

The following diagnostic modes are reserved
for authorized service technicians:

00 Shows the Blank level in colorimetric mode
01 Shows the Sample level in colorimetric mode
02 Shows the Dark level in colorimetric mode
05 Shows the Ground voltage
06 Shows 5V on-board level
07 Shows battery voltage level
08 Shows 1.23V reference voltage level
09 Shows -5V on-board level
99 Shows software version number

27

To quit diagnostic mode,
press the ALT and CAL
keys together again.

LOGGING

HI 93114 allows user to log 25 time/day-tagged

measurements. User can easily turn the log­ging mode on and off, review the logged
memory, review the current lot number and
clean the buffer (memory). HI 93114 also
reminds the user if its memory is full.

TURNING THE LOG MODE ON OR OFF

Enter the diagnostic
mode by pressing ALT
and CAL together.

Select mode 12 and press the

key.

The display will show the current (vacant) lot
together with “LOG” if the log mode is on.
Otherwise it will show “----” if the log mode is
off.

+

+

of the display to remind the user that every time
a measurement is taken, the value is stored in
the next available lot number.

REVIEWING THE LOGGED BUFFER

To review the memo­rized values, press to-

gether ALT and .
The meter will scroll all the data in the buffer

showing the lot number, value, date and time.
e.g. The first recorded reading in the buffer is

lot # 0, 0.35 mg/L of Free Chlorine,
memorized on 23rd August at 3:34 pm;

The second logged data relates to lot
# 1, 1.35 mg/L of the customized param­eter, logged on 23rd August at 3:55 pm.

First lot Second lot

+

By pressing the key, the meter toggles
between the Log on and off positions. If the
log on mode is selected, every time a mea­surement is taken (READ pressed) the rel­evant values will be stored in the current
(vacant) lot number.

To quit diagnostic
mode, press ALT and
CAL together again.

The LCD will then show “CAL” and “Stor” for a
few seconds. If the log on mode was selected
“LOG” will appear on the bottom left hand side

28

+

CLEARING THE MEMORY

After all the buffer (memory) is taken up, the
LCD will blink “Full”.

29

To clear the buffer,
press ALT and CAL.

Select mode 40. Press
the key. The display will show the “Cln”
message, indicating that memory is being
cleaned.

+

The meter will store new settings in its non­volatile memory and the display will flash
“CAL” and “Stor” alternately for several sec­onds.

The lot number will be reset to 00 automatically.

REVIEWING THE CURRENT LOT NUMBER

To check the current
(vacant) lot number,
while in log mode,
press ALT and to­gether.

USER-SELECTABLE SHUTDOWN

With HI 93114, the users can customize the
shutdown time to save power.

To change the shutdown
time, enter the diagnos­tic mode by momentarily
pressing ALT and CAL.
Select mode 10 and press the key repeat­edly to set the desired shutdown time from
10 to 60 minutes with 10 minute increments,
or disable the shutdown mode by choosing
the OFF selection.

+

BATTERY REPLACEMENT

A “LOBAT” indication
appears on the display
when the batteries are
weak and require re­placement. The instrument can still perform
approximately 50 measurements.

A “-BA-” indication will
appear when the bat­teries are too weak to
ensure accurate mea­surements. This mes­sage appears for a few seconds and then the
meter turns off. Batteries must be replaced.

Batteries should only be replaced in a safe
area and using 1.5V AA alkaline type.

To replace the batter­ies, simply remove the
two screws on the rear
cover of the instrument
and replace all four 1.5V
AA batteries with new
ones, while paying at­tention to their polarity.

After the selection is
completed, exit the di­agnostic mode by press­ing ALT+CAL together.

30

+

31

DIAGNOSTIC CODES

ACCESSORIES

LOBAT Weak batteries: change all batter-

ies as soon as possible.

-BA- Exhausted batteries: change all bat­teries immediately.

-LO- Low light level is received during the
zeroing procedure: check the cuvet
for scratches and ensure that the
sample is not excessively turbid.
Repeat the reading. If the problem
persists, recalibrate the meter us­ing deionized water in the diagnos­tic mode “31” (see “Calibration”).

-CAP- High light intensity during last mea­surement: make sure that the cuvet
is capped and placed properly in
the holder, and that the ambient
light does not reach the photode­tector. Repeat the measurement. If
the problem persists, contact your
dealer or the nearest HANNA office.

Er 1 Hardware error: repeat the measure-

ment. If the error message appears
again, contact your dealer or the
nearest HANNA office.

HI 731318 Tissue for wiping cuvets (4pcs)
HI 731327 Maintenance kit: rugged

carrying case including
HI93102-0 and HI93102-20
calibration solutions, HI 93703-
50 cuvet cleaning solution,
tissue for wiping cuvets and 2
cuvets

HI 93102-0 AMCO-AEPA-1 calibration so-

lution @0 NTU* , 30 mL

HI 93102-20 AMCO-AEPA-1 calibration so-

lution @20 NTU*, 30 mL

HI 93701-01 Reagent kit for 100 free chlo-

rine tests

HI 93701-03 Reagent kit for 300 free chlo-

rine tests

HI 93703-50 Cuvet cleaning solution, 230

mL bottle

HI 93711-01 Reagent kit for 100 total chlo-

rine tests

HI 93711-03 Reagent kit for 300 total chlo-

rine tests

rnG Out of range: check the measuring

procedure and verify the concentra­tion of the sample to ensure that is
not too high.

32

* 1 NTU = 1 FTU.

33

WARRANTY

Hanna Instruments meters are guaranteed
for two years against defects in workman-

ship and materials when used for their in­tended purpose and maintained according to
instructions.

This warranty is limited to repair or replace­ment free of charge. Damages due to acci­dents, misuse, tampering or lack of prescribed
maintenance are not covered.

If service is required, contact the dealer from
whom the instrument was purchased. If under
warranty, report the model number, date of
purchase, serial number and the nature of the
failure. First obtain a Returned Goods Autho­rization number from the Customer Service
department and then return the instrument
indicating the Authorization # with shipment
costs prepaid.

If the repair is not covered by the warranty,
you will be notified of the charges.

When shipping any instrument, make sure it
is properly packaged for complete protection.

CE DECLARATION OF CONFORMITY

HI 93114

All rights are reserved. Reproduction in whole
or in part is prohibited without the written
consent of the copyright owner.

Hanna Instruments reserves the right to modify
the design, construction and appearance of
its products without advance notice.

34

Recommendations for Users

Before using this product, make sure that it is entirely suitable for the environment
in which it is used.

Operation of this instrument in residential areas could cause unacceptable
interference to radio and TV equipment, requiring the operator to take all neces­sary steps to correct the interference.

Any variation introduced by the user to the supplied equipment, may degrade the
instrument's EMC performance.

To avoid electrical shocks, do not use this instrument when voltage at the
measurement surface exceeds 24 Vac or 60 Vdc.

To avoid damage or burns, do not perform any measurement in microwave ovens.

35

SALES & TECHNICAL SERVICE

Australia:

Tel. [phone] • Fax [phone]

China:

Tel. [phone] • Fax [phone]

Egypt:

Tel. & Fax [phone]

Germany:

Tel. [phone] • Fax [phone]

Greece:

Tel. [phone] • Fax [phone]

Indonesia:

Tel. [phone] • Fax [phone]

Japan:

Tel. [phone] • Fax [phone]

Korea:

Tel. [phone] • Fax [phone]

Malaysia:

Tel. [phone] • Fax [phone]

Singapore:

Tel. [phone] • Fax [phone]

South Africa:

Tel. [phone] • Fax [phone]

Taiwan:

Tel. [phone] • Fax [phone]

Thailand:

Tel. [phone] • Fax [phone]

United Kingdom:

Tel. [phone] • Fax [phone]

USA:

Tel. [phone] • Fax [phone]

For e-mail contacts and complete list of Sales and
Technical offices, please see www.hannainst.com

MANC114R2 09/05