Hanna Instruments HI 4421 Manual de usuario

www.hannainst.com

HI 4421

DO/BOD/OUR/SOUR/Temperature

Bench Meter

Instruction Manual

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.

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 [email protected] or see the

back side of this manual for our worldwide sales and technical service contacts.

These instruments are in compliance with directives.

WARRANTYWARRANTY

WARRANTY

TABLE OF CONTENTSTABLE OF CONTENTS

TABLE 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

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 (30 mL)

•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.

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.

PRELIMINARY EXAMINATIONPRELIMINARY EXAMINATION

PRELIMINARY EXAMINATION

GENERAL DESCRIPTIONGENERAL DESCRIPTION

GENERAL DESCRIPTION

HI 4421 DESCRIPTION

FRONT PANEL

REAR PANEL

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

FUNCTIONAL DESCRIPTIONFUNCTIONAL DESCRIPTION

FUNCTIONAL DESCRIPTION

KEYBOARD DESCRIPTION

FUNCTION KEYS

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. and

in Measure

mode).

LCD GENERAL DESCRIPTION

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.

SPECIFICATIONSSPECIFICATIONS

SPECIFICATIONS

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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.

OPERATIONAL GUIDEOPERATIONAL GUIDE

OPERATIONAL GUIDE

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, tempera-

ture compensation mode, pressure value, pressure compensation

mode and minimal GLP data.

To choose the Basic displaying mode:

• Press while in

Measure

mode. The “Choose Display

Configuration” message will be displayed in the Reminder

messages area.

• Press . The instrument will display the basic informa-

tion for the selected measurement mode.

GLP

Accessing this option, a detailed GLP data will be displayed on the

LCD for DO

measure modes: Last Calibration Date and Time,

Sample ID, Buffer Value, Pressure Value, Salinity Value, Tem-

perature Value, Temperature Compensation, the Date and Time.

To access the GLP displaying mode:

• Press while in

Measure

mode. The “Choose Display

Configuration” message will be displayed in the Reminder

messages area.

• Press . The instrument will display the detailed GLP

data.

DISPLAYING MODESDISPLAYING MODES

DISPLAYING MODES

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 while in

Measure

mode. The “Choose Display

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 (

Time

) axis.

• Press to access the zoom menu for the vertical (

Parameter

) axis. Use or for

vertical axis zooming.

• Press to return to the main menu.

When the offline graph is displayed:

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

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

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

to zoom the selected axis.

Note: While in zoom graph menu the key is not accessible.

• Press to return to the main menu.

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