Hanna Instruments HI 4421 User Manual

Instruction Manual

HI 4421

DO/BOD/OUR/SOUR/Temperature

Bench Meter

www.hannainst.com

Dear Customer, Thank you for choosing a Hanna Instruments product. This manual will provide you with the necessary

information for correct use of the instrument. Please read this instruction manual carefully before using the instrument. If you need additional technical information, do not hesitate to e-mail us at tech@hannainst.com or see the

back side of this manual for our worldwide sales and technical service contacts. These instruments are in compliance with

HI 4421 is warranted for two years against defects in workmanship and materials when used for their intended purpose and maintained according to instructions. The probe is guaranteed for six months. This warranty is limited to repair or replacement free of charge.

Damage due to accidents, misuse, tampering or lack of prescribed maintenance is 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 Technical Service Department and then send it with shipping costs prepaid. When shipping any instrument, make sure it is properly packed for complete protection.

To validate your warranty, fill out and return the enclosed warranty card within 14 days from the date of purchase.

directives.

WARRANTYWARRANTY

WARRANTY

WARRANTYWARRANTY

TABLE OF CONTENTSTABLE OF CONTENTS

TABLE OF CONTENTS

TABLE OF CONTENTSTABLE OF CONTENTS

WARRANTY ...................................................................................................................................... 2

PRELIMINARY EXAMINATION .............................................................................................................. 4

GENERAL DESCRIPTION ...................................................................................................................... 4

FUNCTIONAL DESCRIPTION ................................................................................................................ 5

SPECIFICATIONS ................................................................................................................................ 7

OPERATIONAL GUIDE ....................................................................................................................... 8

DISPLAYING MODES ......................................................................................................................... 9

SYSTEM SETUP............................................................................................................................... 12

DO SETUP......................................................................................................................... 18

BOD SETUP............................................................................................................................. 29

OUR SETUP.............................................................................................................. 31

SOUR SETUP.............................................................................................................. 33

DO CALIBRATION.............................................................................................................. 35

PRESSURE CALIBRATION.............................................................................................................. 37

DO MEASUREMENT.............................................................................................................. 38

BOD MEASUREMENT.............................................................................................................. 42

OUR MEASUREMENT ............................................................................................... 45

SOUR MEASUREMENT.............................................................................................................. 46

LOGGING ....................................................................................................................................... 47

PC INTERFACE .................................................................................................................................... 52

PROBE CONDITIONING & MAINTENANCE ..................................................................................... 52

TROUBLESHOOTING GUIDE .............................................................................................................. 53

ACCESSORIES .................................................................................................................................. 54

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 shipping. If there is any damage, notify your dealer or the nearest Hanna Service Center.

The meter is supplied complete with:

• HI 76408 DO probe for laboratory use with built-in temperature sensor

• HI 7041S Electrolyte solution (

• HI 76407A Membrane caps (2 pcs)

• HI 76404N Electrode Holder

• 12Vdc Power Adapter

• Instruction Manual

HI 4421 is supplied with 12 Vdc/230 Vac adapter. HI 4421-01 is supplied with 12 Vdc/115 Vac adapter.

Note: Save all packing material until you are sure that the instrument works properly. Any defective item

must be returned in the original packing with the supplied accessories.

GENERAL DESCRIPTIONGENERAL DESCRIPTION

GENERAL DESCRIPTION

GENERAL DESCRIPTIONGENERAL DESCRIPTION

HI 4421 is a professional bench meter with color graphic LCD for DO, BOD, OUR, SOUR and temperature measurements. The display viewing modes are: Basic information only, GLP information, Graph and Log History mode. The main features of the instruments are:

• One input channel;

• Six measurement parameters: DO, BOD, OUR, SOUR, pressure and temperature;

• Automatic or user standard DO calibration;

• AutoHold feature to freeze the stable reading on the LCD (DO only);

• Two selectable alarm limits (for DO, BOD, OUR, SOUR);

• Three selectable logging modes: Automatic logging, Log on demand (manual logging) and AutoHold logging mode (DO only);

• Up to 100 logging lots for automatic or manual modes, up to 200 OUR and SOUR reports and up to 200 BOD method information entries;

• Selectable area and settable sampling period feature for automatic logging;

• GLP feature;

• Online and offline graph;

• User-friendly interface on large color graphic LCD (240x320 pixels);

• Opto-isolated PC interface via RS232 respectively USB.

30 mL)

HI 4421 DESCRIPTION

FRONT PANEL

REAR PANEL

FUNCTIONAL DESCRIPTIONFUNCTIONAL DESCRIPTION

FUNCTIONAL DESCRIPTION

FUNCTIONAL DESCRIPTIONFUNCTIONAL DESCRIPTION

1) Liquid Crystal Display (LCD)

2) Main Keyboard

3) USB connector

4) ON/OFF switch

5) Power adapter socket

6) RS232 serial communication connector

7) DO probe input

KEYBOARD DESCRIPTION

FUNCTION KEYS

To enter / exit calibration mode.

To select the desired measurement mode: DO, BOD, OUR, SOUR.

To enter Setup (System Setup, DO Setup, BOD Setup , OUR Setup or SOUR Setup) and to access Log Recall function.

To obtain general informations about the selected option / operation.

VIRTUAL KEYS

The upper row keys are assigned to the virtual keys placed on the bottom of the LCD, which allow you to perform the displayed function, depending on the current menu (e.g. mode).

and

in Measure

LCD GENERAL DESCRIPTION

SPECIFICATIONSSPECIFICATIONS

SPECIFICATIONS

SPECIFICATIONSSPECIFICATIONS

egnaRmpp00.09ot00.0

erutarepmeT

cirtemoraB

erusserp

.pmocytinilaSegnaRL/g,tpp54ot0

draobyeK)syeklautriv4(syek8

eborPni-tliuberutarepmethtiwcihpargoraloP

ecafretniCP

serutaeFgniggoL

PLGofninoitarbilac,atadnoitarbilactsaL

noitarbilaC

DCLslexip043x042DCLcihparGroloC

snoisnemiD)"7.3x1.9x3.6(mm49x132x061

thgieW)bl6.2(gK2.1

noituloseR

ycaruccAtigid1±gnidaerfo%5.1±

egnartnemerusaeM

egnarnoitasnepmocOD

noituloseRK,F°,C°1.0

ycaruccAK,F°,C°2.0±

stinUK,F°,C°

egnaR

noituloseRgHmm1

ycaruccAtigidtnacifingistsael1+gHmm3±

)dnameDnegyxOlacimehcoiB(DOBseY

)etaRekatpUnegixO(RUO

)etaRekatpUnegixOcificepS(RUOSseY

egarotSataDlanretxEoN

selpmasdroceR

lavretnigniggoLces000003ot1

epyTcitamotuA,launaM

revaSthgilkcaB)citamotua(seY

edomdnEotuAylnoOD

)RUOS,RUO,DOB,OD(mralA)stimiledistuO/edisnI(seY

dradnatsnoitarbilaCnoitarutas%001dna0

1244IH

noitarutas%0.006ot0.0

mpp10.0

noitarutas%1.0

C°0.021ot0.02-

F°0.842ot0.4-

K1.393ot1.352

C°0.05ot0.0

F°0.221ot0.23

K1.323ot1.732

gHmm058ot054

raBm3311ot065

seY

detalosi-otpO

BSU,232SR

stol001otpu

gniggoLcitamotuAroftol/selpmas00001

gniggoLlaunaMroftol/selpmas0005

dradnatsresU/citamotuA

)stniop2ro1(

OPERATIONAL GUIDEOPERATIONAL GUIDE

OPERATIONAL GUIDE

OPERATIONAL GUIDEOPERATIONAL GUIDE

POWER CONNECTION

Plug the 12 Vdc adapter into the power supply socket.

Note: These instruments use non volatile memory to retain the meter settings, even when unplugged.

PROBE CONNECTION

For DO, BOD, OUR or SOUR measurements connect a DO probe to the DIN connector located on the rear panel of the instrument.

INSTRUMENT START UP

• Turn the instrument on from the power switch located on the rear panel of the instrument.

• Please wait until the instrument finishes the initialization process.

Note: It is normal for the loading process to take a few seconds. If the instrument doesn’t display the next

screen, restart the meter using the power switch. If the problem persists, contact your dealer.

DISPLAYING MODESDISPLAYING MODES

DISPLAYING MODES

DISPLAYING MODESDISPLAYING MODES

For each measurement mode (DO, BOD, OUR or SOUR) the following display configurations are available: Basic, Good Laboratory Practice (GLP), Graph and Log History.

Basic

Accessing this option, the measured value and its units are displayed on the LCD, along with the temperature value, temperature compensation mode, pressure value, pressure compensation mode and minimal GLP data.

To choose the Basic displaying mode:

• Press

Configuration” message will be displayed in the Reminder messages area.

• Press

tion for the selected measurement mode.

GLP

Accessing this option, a detailed GLP data will be displayed on the LCD for DO Sample ID, Buffer Value, Pressure Value, Salinity Value, Temperature Value, Temperature Compensation, the Date and Time.

To access the GLP displaying mode:

• Press

Configuration” message will be displayed in the Reminder messages area.

• Press

data.

while in

. The instrument will display the basic informa-

measure modes: Last Calibration Date and Time,

while in

. The instrument will display the detailed GLP

Measure

mode. The “Choose Display

Measure

mode. The “Choose Display

Graph

Accessing this option, the online graph with currently logged values (DO, BOD, OUR or SOUR vs. Seconds) could be displayed.

If there is no active log, the previously logged data for the selected parameter will be plotted.

Notes: • If no data were logged, the graph displaying mode

will not be accessible.

• If no automatic log is saved, the offline graph will not be available.

To access the offline / online graph:

• Press Configuration” message will be displayed in the Reminder messages area.

• Press

When the online graph is displayed:

• Use and to move the graph along the horizontal (

• Press to access the zoom menu for the vertical ( vertical axis zooming.

• Press

When the offline graph is displayed:

• Use the arrow keys to move the graph along the horizontal and vertical axes.

• Press

to zoom the selected axis.

Note: While in zoom graph menu the

• Press

while in

Measure

mode. The “Choose Display

Time

Parameter

to return to the main menu.

to access the zoom menu for the horizontal and vertical axes. Use or /

/ / to switch between the active zooming axes. Press or

key is not accessible.

to return to the main menu.

) axis. Use or for

) axis.

Log History

Accessing this option, last logged records will be displayed on the LCD. The log history list also contains the appropriate DO / BOD / OUR / SOUR values, the logged temperature, the temperature source, as well as the records time stamp.

To access the Log History displaying mode:

• Press play Configuration” message will be displayed in the Reminder messages area.

• Press regarding the selected measure mode.

Notes: • When an alarm condition is active, the logged records will have an exclamation mark (!).

• When a meter is in auto-hold, the logged records will have an “H” symbol.

• If another measure mode is selected, the Log History will be cleared.

• If the temperature unit is changed, all logged temperature values will be automatically displayed

while in

. The instrument will display the log history

in the new temperature unit.

Measure

mode. The “Choose Dis-

SYSTEM SETUPSYSTEM SETUP

SYSTEM SETUP

SYSTEM SETUPSYSTEM SETUP

The System Setup menu allows the user to customize the user interface, consult the meter information, set the external serial communication interface and to restore the manufacturer settings.

Accessing System Setup

• Press

while in

Measure

mode.

• Press on the LCD.

To access a System Setup option:

• Use

• Press

The following is a detailed description of the System Setup option screen.

Beeper

This option allows the user to enable or disable the beeper. When the beeper is enabled, a specific beep will be heard when the reading becomes stable, when an alarm condition is reached, a wrong key is pressed.

. The system setup options will be displayed

or to highlight the desired option.

to access the selected option.

when pressing a key or if

Stability Indicator

When the reading becomes stable, the instrument delivers a medium beep only if this option is activated, along with the “Stable” indicator on the LCD.

Alarm

If this option is activated, a continuous double beep will be heard each time the set limits in exceeded, along with the “Alarm” indicator on the LCD.

Measure

mode are

Key Pressed

If this option is activated, a short beep will be heard each time a valid key is pressed.

Wrong Key

If this option is activated, a long beep will be heard when an incorrect key is pressed.

To set the Beeper:

• Use

or to select the

Beeper

option.

• Press desired beeper associated event you want to modify.

• Press beeper status option.

• Press menu or press

Saving Confirmation

When enabling this option, a prompt will appear on the LCD alerting the user to save the modified values by pressing

without saving by pressing and return to the editing mode by pressing

modified values will be saved automatically. To enabled /disabled the saving confirmation:

• Use

• Press and use or to choose enabled / disabled.

• Press cancel operation.

and use or to highlight the

to confirm your selection and return to the

to return without changing.

or canceling the saving operation

or to select the

to confirm your selection or press

Saving Confirmation

Beeper

, exiting

. If disabled, the

option.

GLP Data

This option allows the user to set general information which will appear in the log reports. The edited text can have max 10 characters.

Operator ID Instrument ID Company Name Additional Info 1 & Additional Info 2

– edit the operator’s name.

– edit an identification name / number for the instrument.

– edit the company name.

– for general purpose notations.

To set the GLP data:

• Use

or to select the

GLP Data

option.

• Press desired option.

• Press to edit the desired information. The Text Editor menu will be displayed on the LCD.

• Enter the desired information by using highlight the desired character. It is also possible to delete the last

character by positioning the cursor on the Backspace character ( and pressing

• Press

Confirmation

Date & Time

This option allows the user to set the current date & time and the format in which they appear. These parameters will be displayed on the

Set Date and Time

This option allows you to set the current date (year / month / day) and time (hour / minute / second). Notes: • Only years starting with 2000 are accepted.

• The time is set using the selected time format. For 12 Hour time format only, the AM / PM can

and use or to highlight the

and to

)

to return to the

is enabled, press to accept the modified option, to escape without saving or

to return to the editing mode. Otherwise, the modified options are saved automatically.

Measure

also be selected with

GLP Data

menu. If the

screens and also when storing measured data.

or .

Saving

Set Time Format

This option allows you to choose between 12 Hour (AM / PM) time format and 24 Hour time format from the displayed pop-up box.

Set Date Format

This option allows you to choose the desired date format from the available formats: DD/MM/YYYY; MM/DD/YYYY; YYYY/MM/DD; Mon DD, YYYY; DD-MM-YYYY and YYYY-Mon-DD.

To set the Date & Time:

• Use or to select the

• Press and use or to highlight the desired option you want to modify.

• Press

to confirm your selection. Use and and then use to modify the value with or (for

Set Date and Time

Date & Time

option). For the

option.

other two options press select one of the displayed formats with

• Press

& Time

• Press

Note: If the time is changed with more than one hour before last measure parameters user calibration, a pop-up

warning will appear on the LCD, notifying the user that a date/time conflict has occured and some timedependent features could work improperly (e.g.

LCD Setup

This option allows the user to set the parameter can be adjusted within 7 steps, while the be set from 1 to 60 minutes or it can be disabled (OFF). All the changes are visible on the LCD for each parameter.

Note: If the instrument backlight is turned off after the set period of time, press any key to turn it back on.

To set the LCD:

• Use or to select the

to confirm your selection and return to the

options.

to return to the previous mode.

to confirm your selection and

or .

Date

GLP, Log

Contrast

, the

Backlight

of the LCD and the

Backlight

parameter within 4 steps. The

LCD Setup

option;

Backlight Saver

. The

Contrast

Backlight Saver

can

• Press parameter;

• Use

• Press return to the

and use key to highlight the desired

or to adjust the selected parameter;

System Setup

menu with saving.

Language

This option allows the user to choose the desired language for the user interface. To select the Language:

• Use

or to select the Language option.

• Press desired language.

• Press

menu or press

Setup

menu without changing.

Serial Communication

This option allows the user to set the desired speed for the serial communication (baud rate) between the instrument and PC from

To set the serial communication:

• Use option.

• Press desired baud rate.

• Press

menu or press

Setup

and use or to highlight the

to confirm your selection and return to the

to return to the

1200, 2400, 4800 or 9600

or to select the

and use or to highlight the

to confirm your selection and return to the

to return without changing.

Serial Communication

System

System Setup

System

Note: The meter and the PC application must have the same baud

rate.

Meter Information

This option provides general information about the instrument serial number (each instrument has an unique identification serial number), the software version and the factory calibration date and time (for DO, pressure and temperature).

Note: All the instruments are factory calibrated for DO, pressure and temperature. After one year from last factory

calibration, the warning will appear at meter startup to inform the user that a new factory calibration is required.

To view the meter information:

• Use or to select the

Meter Information

option.

• Press press

Restore Factory Settings

This option allows the user to reset the instrument to the default factory settings. To restore the factory settings:

• Use option.

• Press displayed, asking for confirmation.

• Press to confirm and return to the

to confirm and to view the meter information or to return to the

or to select the

to confirm your selection. A pop-up box will be

System Setup

Restore Factory Settings

menu.

System Setup

to return without restoring defaults.

or press

+ 39 hidden pages