Hanna Instruments HI 4221, HI 4222 User Manual

Instruction Manual

HI 4221 & HI 4222

pH/mV/ISE/Temperature

Bench Meters

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 4221 and HI 4222 are warranted for two years against defects in workmanship and materials when used for their intended purpose and maintained according to instructions. Electrodes and probes are 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 ................................................................................................................................ 8

OPERATIONAL GUIDE ....................................................................................................................... 9

DISPLAYING MODES ......................................................................................................................... 11

SYSTEM SETUP ............................................................................................................................... 14

pH SETUP ...................................................................................................................................... 20

mV SETUP ..................................................................................................................................... 32

ISE SETUP (HI 4222 only) .............................................................................................................. 33

pH CALIBRATION & MEASUREMENTS ................................................................................................. 39

mV & RELATIVE mV MEASUREMENTS ................................................................................................ 44

ISE CALIBRATION & MEASUREMENTS (HI 4222 only) ........................................................................ 46

LOGGING ....................................................................................................................................... 57

PC INTERFACE .................................................................................................................................... 62

pH BUFFER TEMPERATURE DEPENDENCE .......................................................................................... 63

ELECTRODE CONDITIONING & MAINTENANCE ..................................................................................... 64

TROUBLESHOOTING GUIDE .............................................................................................................. 66

TEMPERATURE CORRELATION FOR pH SENSITIVE GLASS ...................................................................... 67

ACCESSORIES .................................................................................................................................. 68

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 meters are supplied complete with:

• HI 1131B Glass-body Combination pH Electrode

• HI 7662-T Temperature probe

• pH 4.01 & 7.01 Buffer solutions, 20 mL each

• HI 700661 Cleaning Solution, 2 x 20 mL

• HI 7071S Electrolyte solution

• HI 76404N Electrode Holder

• 12Vdc Power Adapter

• Instruction Manual

HI 4221 and HI 4222 are supplied with 12 Vdc/230 Vac adapter. HI 4221-01 and HI 4222-01 are 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 4221 and HI 4222 are professional bench meters with color graphic LCD for pH, ORP (Oxidation Reduction Potential), ISE (HI 4222 only) and Temperature measurements with Calibration Check. The display can be configured as a single channel or dual channel display (HI 4222 only) in various modes: Basic information only, GLP information, Graph mode and Log History mode. Each channel can be configured as pH, mV, Relative mV or ISE (HI 4222 only). The main features of the instruments are:

• One (HI 4221), or two (HI 4222) input channels;

• Manual selection, automatic and semiautomatic pH calibration up to five points, with standard (1.68, 3.00,

4.01, 6.86, 7.01, 9.18, 10.01 and 12.45) and custom buffers (up to 5 custom buffers);

• Manual Selection and Custom Standard ISE calibration up to five points, with standard (0.1, 1, 10, 100, 1000 ppm) and custom solutions (up to 5 custom solutions), with or without temperature compensation;

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

• Two selectable alarm limits;

• Five selectable logging modes: Automatic logging with and without AutoHold feature, Manual logging with or without AutoHold and AutoHold logging mode;

• Up to 100 logging lots;

• Selectable log interval and log sampling features for Automatic logging;

• GLP feature;

• Online and offline graph;

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

• PC interface via RS232, and USB.

HI 4221 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) Temperature probe socket

8) BNC electrode connector for pH/ORP measurements

9) Reference input socket

HI 4222 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) Temperature probe socket (Channel 2)

8) BNC electrode connector for pH/ORP/ISE measurements (Channel 2)

9) Reference input socket (Channel 2)

10) Temperature probe socket (Channel 1)

11) BNC electrode connector for pH/ORP/ISE measurements (Channel 1)

12) Reference input socket (Channel 1)

KEYBOARD DESCRIPTION

FUNCTION KEYS

To enter/exit calibration mode.

To select the desired measurement mode, pH, mV, Rel mV (or ISE – HI 4222 only).

To enter Setup (System, pH, mV or ISE) 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.

Measure

mode).

Note: All the virtual keys are assigned to the focused channel (HI 4222 only).

and in

LCD GENERAL DESCRIPTION

SPECIFICATIONSSPECIFICATIONS

SPECIFICATIONS

SPECIFICATIONSSPECIFICATIONS

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OPERATIONAL GUIDEOPERATIONAL GUIDE

OPERATIONAL GUIDE

OPERATIONAL GUIDEOPERATIONAL GUIDE

POWER CONNECTION

Plug the 12 Vdc adapter into the power supply socket. Notes: • These instruments use non volatile memory to retain the pH, Ion calibrations and all other

settings, even when unplugged.

• Make sure a fuse protects the main line.

ELECTRODE AND PROBE CONNECTIONS

For pH or ORP measurements connect a pH/ORP electrode with internal reference to the BNC connector located on the rear panel of the instrument (for the desired channel – HI 4222 only).

For ISE measurements (HI 4222 only) connect, to the desired channel, an ISE electrode with internal reference to the BNC connector located on the rear panel of the instrument.

For electrodes with a separate reference connect the electrode’s BNC to the BNC connector and the electrode’s reference to the reference input socket.

For temperature measurements and automatic temperature compensation connect the temperature probe to the appropriate socket (for the desired channel – HI 4222 only).

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.

CHANNEL SELECTION (HI 4222 only)

• Press

selection menu. Four available options will be displayed: Channel 1, Channel 2, or multi-channel with the first or the second channel focused. The “Choose Channel Configuration” message is displayed in the Reminder messages area.

• Select the desired option by pressing the appropriate key:

selected option

while in

, or . The instrument will enter in the

Measure

mode.

mode to access channel

DISPLAYING MODESDISPLAYING MODES

DISPLAYING MODES

DISPLAYING MODESDISPLAYING MODES

For each measurement mode (pH, mV, Rel mV or Ion) 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, and GLP data.

To choose the Basic displaying mode:

• Press

the Reminder messages area.

• Press

while in

. The instrument will display the basic information for the selected measurement mode.

Measure

mode. The “Choose Display Configuration” message will be displayed in

GLP

Accessing this option, detailed GLP data will be displayed on the LCD for only: Last Calibration date and time, Offset and Slope values, Calibration Buffers/Standards and general information regarding the buffers/standards: the calibration temperature, temperature compensation mode, date and time. For

Note: If only a one-point pH calibration is performed or the current calibration does not include at least two consecutive

standard buffers of pH 4.01, 7.01 (6.86) and 10.01 (9.18) buffers, the Electrode Condition will be unknown.

To access the GLP displaying mode:

• Press

the Reminder messages area.

• Press . The instrument will display the detailed GLP data.

pH Measure

while in

, the Electrode Condition is also displayed on the LCD in percent.

Measure

mode. The “Choose Display Configuration” message will be displayed in

pH Measure

and

ISE Measure

modes

Graph

Accessing this option, the online graph with currently logged values (pH, mV, Rel mV, or ISE vs. Seconds) will 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

displayed in the Reminder messages area.

• Press

while in

Measure

Logging

mode. The “Choose Display Configuration” message will be

When the online graph is displayed:

•Use

• Press to access the zoom menu for Y axis. Use or for zooming Y (parameter) axis.

• Press

When the offline graph is displayed:

• Use the arrow keys to move the graph along X (Time) and Y (parameter) axes.

• Press

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

• Press

Log History

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

Note: If no data were logged, the “Log History Empty” message will be displayed on the LCD. To access the Log History displaying mode:

• Press

the Reminder messages area.

• Press . The instrument will display the log history regarding the selected

and to move the graph along X (Time) axis.

to return to the main menu.

to access the zoom menu for X and Y axes. Use , or / / /

to switch between the active zooming axes. Press or to zoom the selected axis.

to return to the main menu.

while in

Measure

mode. The “Choose Display Configuration” message will be displayed in

Measure

mode.

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

• If another

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

Measure

mode is selected, the Log History will reset.

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

• Press the LCD.

To access a System Setup option:

• Use

while in

. The system setup options will be displayed on

or to highlight the desired option.

Measure

mode.

• 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.

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 ON, along with the “Stable” indicator on the LCD.

Alarm

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

Wrong Key

If this option is ON, a long beep will be heard when an incorrect key is pressed. To set the Beeper:

• Press while in

• Press

Measure

mode.

• Use

or to select the Beeper option.

• Press desired beeper status option you want to modify.

• Press desired option.

• Press menu or press

changing.

Saving Confirmation

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

editing mode by pressing

To modify the Saving Confirmation option:

• Press

• Use

• Press desired Saving Confirmation option.

• Press cancel operation.

and use or to highlight the

to confirm your selection and return to the Beeper

to return to the Beeper menu without

, exiting without saving by pressing or canceling the saving operation and return to the

. If disabled, the modified values will be saved automatically.

while in

or to select the Saving Confirmation option.

and use or to highlight the

to confirm your selection or press

Measure

mode.

GLP Data

This option allows the user to set general information which will appear in the log reports. The options are available for both channels (HI 4222 only) and can have a max of 10 characters.

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

– this option allows you to edit the name of the operator.

– this option allows you to edit an identification name/number for the instrument.

– this option allows you to edit the company name.

– for general purpose notations.

To set the GLP Data:

• Press

• Use

• Press desired option.

• Press will be displayed on the LCD.

• Enter the desired information by accepting the highlighted character which is added to the text bar, using

possible to delete the last character by positioning the cursor on the Backspace character (

• Press the modified option,

the modified options are saved automatically.

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

while in

or to select the GLP Data option.

and use or to highlight the

to edit the desired information. The Text Editor menu

keys help the user select the desired character. It is also

to return to the GLP Data options. If the Saving Confirmation is enabled, press to accept

Measure

mode.

. The and

) and pressing .

to escape without saving or to return to the editing mode. Otherwise,

Measure

screens and also when storing measured data.

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 also be selected with

or .

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 menu.

Set Date Format

This option allows you to choose the desired date format from 6 available options: DD/MM/YYYY; MM/DD/YYYY; YYYY/MM/DD; Mon DD, YYYY; DD-MM-YYYY and YYYY-Mon-DD.

To set the Date & Time:

• Press

while in

Measure

mode.

• Use

or to select the Date & Time option.

• Press desired option you want to modify.

• Press to select next/previous entry to be edit. Press and use

to save the modified value (for Set Date and Time option). For the other two options press and select one of the displayed options with

• Press Time options.

• Press is enabled, press

return to the editing mode. Otherwise, the modified option is saved automatically.

Note: If the time is changed with more than one hour before last pH/ION calibration, a pop-up warning will

appear on the LCD, notifying the user that a date/time conflict has occured and some time-dependent modes could work improperly (e.g.

LCD Setup

This option allows the user to set the Contrast, the Backlight of the LCD and the Backlight Saver. The Contrast parameter can be adjusted within 7 steps, while the Backlight parameter within 4 steps. The Backlight Saver can be set from 1 to 60 minutes or it can be OFF (disabled). 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 Setup:

• Press

• Use

and use or to highlight the

to confirm your selection. Use /

or to set the desired value, then press

to confirm your selection

or .

to confirm your selection and return to the Date &

to return to Date & Time options (for Set Date and Time option only). If the Saving Confirmation

to accept the modified option, to escape without saving or to

Measure

, GLP, Log).

while in

or to select the LCD Setup option.

Measure

mode.

• Press

• Use or to adjust the contrast / backlight or to set the desired backlight saver time.

• Press System Setup menu.

and use key to highlight the desired parameter.

to confirm the modified options and return to the

Language

This option allows the user to choose the desired language in which all information will be displayed. To select the Language:

• Press

• Use

while in

or to select the Language option.

Measure

mode.

• Press desired language.

• Press Setup menu or press

menu without changing.

Note: After selecting the desired language, a warning pop-up is

displayed on the LCD, informing the user that the selected language becomes the current language only after restarting the instrument.

Serial Communication

This option allows the user to set the desired speed for the serial communication (baud rate) between the instrument and PC. The meter and the PC program must have the same baud rate.

To set the Serial Communication:

• Press

• Use option.

• Press desired baud rate.

• Press Setup menu or press

menu without changing.

and use or to highlight the

to confirm your selection and return to the System

to return to the System Setup

while in

or to select the Serial Communication

and use or to highlight the

to confirm your selection and return to the System

Measure

mode.

to return to the System Setup

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 mV and temperature).

Note: All the instruments are factory calibrated for mV and temperature. After one year following factory

calibration, the “Factory Calibration Due” message will appear on the LCD, in the Reminder messages area, notifying the user that the instrument should be taken to the nearest Hanna Customer Service for factory calibration.

To view the Meter Information:

• Press

• Use

while in

or to select the Meter Information option.

Measure

mode.

• Press Information or press

menu.

Restore Factory Settings

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

• Press

• Use option.

• Press displayed, asking for confirmation.

• Press Setup or press

without restoring defaults.

• Press

to confirm your selection and to view the Meter

to return to the System Setup

while in

or to select the Restore Factory Settings

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

to confirm your selection and return to the System

to return to

Measure

mode.

to return to the System Setup menu

Measure

mode.

pHpH

SETUP SETUP

SETUP

pHpH

SETUP SETUP

The pH Setup menu allows the user to set the parameters associated with pH measurement and calibration. These parameters can be set specifically for each channel (HI 4222 only). The settings will be applied only to the active channel.

Accessing pH Setup

• Press select pH range for the desired channel.

• Press

To access a pH Setup option:

• Use

while in

and then to access pH Setup menu.

or to highlight the desired option.

Measure

mode and then to

• Press

The following is a detailed description of the pH Setup option screens.

Temperature

The temperature has a direct influence on pH. This option allows the user to choose the temperature source and units, as well as the desired manual temperature for manual temperature compensation mode.

Temperature Source

If using a temperature probe, Automatic Temperature Compensation will be performed relative to the displayed temperature, with the “ATC” indicator displayed on the LCD. For HI 4222 only, the ATC option can be selected for Channel 1 or Channel 2, in accordance with the active channel utilizing a probe, or for both channels if two temperature probes are used. If no temperature probe is detected, Manual Temperature Compensation will be performed, with the “MTC” indicator on the LCD.

to access the selected option.

(HI 4222 only)

Temperature Unit

Accessing this option, the desired temperature unit can be chosen (Celsius, Fahrenheit or Kelvin degrees) and the meter will automatically make the conversion for the selected unit.

Manual Temperature

If no temperature probe is connected, the desired temperature can be set manually. The default setting is 25°C. If the measured temperature is different, the value can be manually adjusted in order to obtain an accurate pH reading.

To set one of the Temperature options:

• Press

while in

pH Measure

mode.

• Press

• Use or to select the Temperature option.

• Press desired Temperature option you wish to modify.

• Press desired option (for Temperature Source & Unit options) or use

the displayed limits (for Manual Temperature option).

• Press Unit options) or press Temperature option). Otherwise, press

Calibration

This option allows the user to set all the data regarding the pH calibration process.

and use or to highlight the

or to adjust the temperature value between

to confirm your selection (for Temperature Source &

to save the current value (for Manual

to cancel operation.

Buffer Entry Type

Three entry modes for the pH buffers used for calibration are available: Automatic Semiautomatic – the instrument automatically selects the closest buffers to the measured pH value from all

available buffers and you can choose the one used. Manual Selection – the desired pH buffer is manually selected from all available buffers, regardless of measured value.

To set the Buffer Entry Type:

• Press while in

– the instrument automatically selects the closest buffer to the measured pH value from the edit buffer group.

pH Measure

mode.

• Press

• Use

• Press Buffer Entry Type option.

• Press desired option.

• Press cancel operation.

or to select the Calibration option.

and use or to highlight the

to confirm your selection or press

1st Cal. Point

Two options are available for the 1st Cal. Point parameter: Point and Offset. If Point option is selected, the slope values adjacent to the calibration points will be reevaluated (normal calibration). If at least a two-point calibration has been performed and an offset correction of the electrode is wanted

(maintaining the existing slope values), perform a one-point calibration using the Offset option. To set the 1st Cal. Point:

• Press while in

pH Measure

mode.

• Press

• Use

• Press Cal. Point option.

• Press desired option.

• Press cancel operation.

or to select the Calibration option.

and use or to highlight the 1st

and use or to highlight the

to confirm your selection or press

Edit Custom Buffers

If you want to use other buffers than the ones already memorized, the Edit Custom Buffers option is available, allowing you to set the desired pH buffers. Up to five pH custom buffers can be set.

To edit/set the Custom Buffers:

• Press

• Use

• Press Custom Buffers option.

• For a previous set value, press to set the custom buffer value to “----” if desired and confirm the setting by pressing otherwise press

while in

or to select the Calibration option.

and use or to highlight the Edit

pH Measure

to edit the selected custom buffer.

mode.

• While in edit custom buffer menu press buffer value to 7.000 pH and then use

the desired custom buffer value.

to set the custom

or to set

• Press the modified option,

the modified option is saved automatically.

• Use

to exit custom buffer edit menu. If the Saving Confirmation is enabled, press to accept

to escape without saving or to return to the editing mode. Otherwise,

key to select the next custom buffer to be set or press to return to Calibration options.

Edit Buffer Group

Accessing this option the user can edit the desired group of five pH buffers for automatic buffer recognition (Automatic Buffer Entry Type). If the Buffer Group already contains five pH buffers, at least one pH buffer has to be removed in order to add another buffer.

To edit/set the Buffer Group:

• Press

while in

pH Measure

mode.

• Press

• Use

• Press Buffer Group option.

• Press buffer to be included in the buffer group.

• Press to/from the buffer group.

• Press

or to select the Calibration option.

and use or to highlight the Edit

and use and to choose the pH

or to add/remove the selected pH buffer

to return to Calibration options and to save the changes.

Calibration Reminder

In order to have accurate readings, the instrument must be calibrated frecquently. Three options are available for the calibration reminder: Daily, Periodic or Disabled.

To set the Calibration Reminder:

• Press while in

• Press

• Use or to select the Calibration option.

• Press Calibration Reminder option.

• Press desired option.

• Press cancel operation.

and use or to highlight the

to confirm your selection or press

pH Measure

mode.

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