Hanna Instruments HI 4321 User manual

www.hannainst.com

HI 4321

Conductivity/Resistivity/TDS/Salinity/

Temperature

Bench Meter

Instruction Manual

HI 4321 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 ....................................................................................................................... 9

DISPLAYING MODES ......................................................................................................................... 10

SYSTEM SETUP ............................................................................................................................... 13

CONDUCTIVITY SETUP ......................................................................................................................... 19

RESISTIVITY SETUP ............................................................................................................................. 34

TDS SETUP .............................................................................................................. 36

SALINITY SETUP .............................................................................................................. 38

CONDUCTIVITY CALIBRATION.................................................................................. 40

CONDUCTIVITY MEASUREMENT.................................................................................. 42

RESISTIVITY MEASUREMENT .................................................................................. 45

TDS MEASUREMENT ............................................................................................... 46

SALINITY CALIBRATION .................................................................................. 47

SALINITY MEASUREMENT .................................................................................. 48

TEMPERATURE CALIBRATION .................................................................................. 50

LOGGING ....................................................................................................................................... 51

PC INTERFACE .................................................................................................................................... 56

PROBE CONDITIONING & MAINTENANCE ..................................................................................... 56

TROUBLESHOOTING GUIDE .............................................................................................................. 57

ACCESSORIES .................................................................................................................................. 58

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 76312 Four-ring Conductivity Probe with built-in temperature sensor and ID

•HI 76404N Electrode Holder

• 12Vdc Power Adapter

• Instruction Manual

HI 4321 is supplied with 12 Vdc/230 Vac adapter.

HI 4321-01 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 4321 is a professional bench meter with color graphic LCD for conductivity, resistivity, TDS, salinity 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;

• Five measurement parameters: conductivity, resistivity, TDS, salinity and temperature;

• Pure water checking using the USP <645> standard;

• Automatic or custom standard conductivity calibration in up to four points, probe offset calibration;

• One fixed point salinity calibration (Percent Scale only);

• AutoHold feature to freeze the stable reading on the LCD;

• Two selectable alarm limits (for conductivity, resistivity, TDS, salinity);

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

mode;

• Up to 100 logging lots for automatic or manual modes and up to 200 USP reports;

• 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 4321 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) Conductivity 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: Conductivity, Resistivity, TDS, Salinity.

To enter Setup (System Setup, Conductivity Setup, Resistivity Setup , TDS Setup or Salinity

Setup) and to access Log Recall function.

To obtain general informations about the selected option / operation.

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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 conductivity, resistivity, TDS or salinity measurements connect a conductivity 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 (Conductivity, Resistivity, TDS or Salinity) 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 dis-

played on the LCD, along with the temperature value, temperature

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 conductivity and salinity (Percent Scale only)

measure

modes: Last Calibration Date and Time, Cell Constant, Probe

Offset, Reference Temperature, Compensation Coefficient, Tem-

perature Compensation.

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

Table of contents

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