Hanna Instruments HI 98180 User Manual

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Instruction Manual

HI 98180 HI 98181 HI 98182 HI 98183 HI 98184 HI 98185

Calibration Check

Waterproof

pH/mV/ISE/Temperature

Meters

www.hannainst.com

Dear Customer, Thank you for choosing a Hanna Instruments product. Please read this instruction manual carefully before using the instruments. This manual will provide you with the necessary information for correct use of

the instruments, as well as a precise idea of their versatility. If you need additional technical information, do not hesitate to e-mail us at

tech@hannainst.com or turn to the back cover for our worldwide contact list. These instruments are in compliance with directives.

WARRANTYWARRANTY

WARRANTY

WARRANTYWARRANTY

The HI 9818x series are guaranteed for two years against defects in workman- ship 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 problem. 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.

TABLE OF CONTENTSTABLE OF CONTENTS

TABLE OF CONTENTS

TABLE OF CONTENTSTABLE OF CONTENTS

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

PRELIMINARY EXAMINATION ................................................................................................................. 3

GENERAL DESCRIPTION ......................................................................................................................... 3

HI 98180 AND HI 98181 FUNCTIONAL DESCRIPTION ............................................................................... 5

HI 98182, HI 98183, HI 98184 AND HI 98185 FUNCTIONAL DESCRIPTION ................................................. 7

HI 98180 AND HI 98181 SPECIFICATIONS ............................................................................................... 9

HI 98182 AND HI 98183 SPECIFICATIONS ............................................................................................. 10

HI 98184 AND HI 98185 SPECIFICATIONS ............................................................................................. 11

OPERATIONAL GUIDE ......................................................................................................................... 12

pH CALIBRATION ............................................................................................................................... 16

pH BUFFER TEMPERATURE DEPENDENCE .............................................................................................. 25

RELATIVE mV CALIBRATION HI 98181 & HI 98182 ................................................................................. 26

ISE CALIBRATION HI 98184 & HI 98185 ............................................................................................... 27

GOOD LABORATORY PRACTICE (GLP) ..................................................................................................... 31

SETUP .............................................................................................................................................. 33

LOGGING ........................................................................................................................................... 46

MEMORY FUNCTION .......................................................................................................................... 47

AutoEnd ............................................................................................................................................ 48

mV AND TEMPERATURE CALIBRATION (for technical personnel only) ........................................................ 49

PC INTERFACE (not for HI 98180 and HI 98181) ..................................................................................... 52

BATTERIES RECHARGING/REPLACEMENT ................................................................................................ 58

TEMPERATURE CORRELATION FOR pH SENSITIVE GLASS .......................................................................... 60

ELECTRODE CONDITIONING & MAINTENANCE ....................................................................................... 61

TROUBLESHOOTING GUIDE ................................................................................................................ 64

ACCESSORIES .................................................................................................................................... 65

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 Customer Service Center.

Each instrument is supplied with:

• HI 1230B Combination double-junction, gel pH Electrode (HI 98180/1/2)

• HI 7662 stainless steel Temperature Probe with 1 m (3.3') Cable (HI 98180/1/2)

• HI 72911B Combined pH temperature electrode (HI 98183/4/5)

• pH 4.01 & 7.01 Buffer Solutions (230 mL each)

• 100 mL Plastic Beaker

• 4 x 1.2V AA Rechargeable Batteries (inside the instrument)

• HI 710042 Inductive Recharger with power adaptor

• Instruction Manual

• Rugged carrying case

Note: Save all packing material until you are sure that the instrument

functions correctly. All defective items must be returned in the original packing with the supplied accessories.

GENERAL DESCRIPTIONGENERAL DESCRIPTION

GENERAL DESCRIPTION

GENERAL DESCRIPTIONGENERAL DESCRIPTION

The HI 9818x instruments are state-of-the-art, heavy-duty pH meters, de- signed to provide laboratory results and accuracy under harsh industrial conditions. They are provided with a series of new diagnostic features which add an entirely new dimension to the measurement of pH, by allowing the user to dramatically improve the reliability of the measurement:

• 7 memorized buffers (pH 1.68, 4.01, 6.86, 7.01, 9.18, 10.01 and

12.45) for calibration.

• pH calibration up to five calibration points (see instrument specifications).

• Custom calibration with up to five custom buffers (not for HI 98180/1).

• Messages on the graphic LCD for an easy and accurate calibration.

• Diagnostic features to alert the user when the electrode needs cleaning.

• User selectable “Outside Calibration Range” warning.

• Monitoring of the electrode aging.

• User-selectable “calibration time out” to remind when a new calibration is necessary.

Moreover, they offer an extended temperature range from –20 to 120 ºC

Hanna Instruments reserves the right to modify the design,

construction and appearance of its products without advance notice.

(–4 to 248 ºF), using HI 7662 interchangeable temperature probes or temperature sensor inside pH electrode. These instruments can also measure with ORP electrodes, thanks to their capability to measure mV with a resolution up to 0.1 mV (not for HI 98180). HI 98184 and HI 98185 can also measure with ISE electrodes on ppm scale. The electrode type and unit selection capability (for HI 98185) the ion change selection capability (for HI 98184) and the ISE calibration in up to five calibration standard solutions make this instrument very useful for a large range of concentration solutions measurements. Other features include:

• Relative mV measurements

• Log on demand up to 300 samples (100 samples on each range - pH, mV, ISE) (not for HI 98180 and HI 98181)

• Auto Hold feature, to freeze first stable reading on the LCD

• GLP feature, to view last calibration data for pH, Rel mV or ISE

• PC interface

Front viewFront view

Front view

Front viewFront view

HI 98180, HI 98181HI 98180, HI 98181

HI 98180, HI 98181

HI 98180, HI 98181HI 98180, HI 98181

FUNCTIONAL DESCRIPTIONFUNCTIONAL DESCRIPTION

FUNCTIONAL DESCRIPTION

FUNCTIONAL DESCRIPTIONFUNCTIONAL DESCRIPTION

1) Liquid Crystal Display (LCD).

2) Functional keys.

3) / keys to manually increase/decrease the parameters or to scroll between

the parameter list.

4) ESC to escape the current mode, exit calibration, setup, help. etc.

5) CAL key, to enter/exit calibration mode.

6) CLR key, to clean calibration parameters.

7) SETUP key, to enter/exit SETUP mode.

8) ON/OFF key, to turn the instrument ON and OFF.

9) GLP key, to display Good Laboratory Practice information.

10) LIGHT key to toggle between backlighting.

11) MODE key, to change pH resolution or to toggle between mV and Rel mV mode

(HI 98181 only).

12) AutoEnd key, to freeze the first stable reading on the LCD (HI 98180).

RANGE key, to switch between pH and mV range (HI 98181).

13) Help key to enter/exit contextual help.

Top viewTop view

Top view

Top viewTop view

14) BNC electrode connector.

15) Temperature socket.

Front viewFront view

Front view

Front viewFront view

HI 98182, HI 98183,HI 98182, HI 98183,

HI 98182, HI 98183,

HI 98182, HI 98183,HI 98182, HI 98183,

HI 98184, AND HI 98185HI 98184, AND HI 98185

HI 98184, AND HI 98185

HI 98184, AND HI 98185HI 98184, AND HI 98185

FUNCTIONAL DESCRIPTIONFUNCTIONAL DESCRIPTION

FUNCTIONAL DESCRIPTION

FUNCTIONAL DESCRIPTIONFUNCTIONAL DESCRIPTION

1) Liquid Crystal Display (LCD).

2) Functional keys.

3) / keys to manually increase/decrease the parameters or to scroll between

the parameter list.

4) ESC to escape the current mode, exit calibration, setup, help, etc.

5) CAL key, to enter/exit calibration mode.

6) RCL key, to enter/exit view logged data mode.

7) SETUP key, to enter/exit SETUP mode.

8) ON/OFF key, to turn the instrument ON and OFF.

9) GLP key, to display Good Laboratory Practice information.

10) LIGHT key to toggle between backlighting.

11) MODE key, to change pH resolution or to toggle between mV and Rel mV mode.

12) RANGE key, to switch between pH and mV range (HI 98182/3) or pH, mV and

ISE range (HI 98184/5).

13) Help key to enter/exit contextual help.

Top viewTop view

Top view

Top viewTop view

14) BNC electrode connector.

15) Reference socket (HI 98184/5).

16) Reference socket rubber stopper (HI 98184/5).

17) Temperature socket

18) Temperature socket rubber stopper (HI 98183/4/5).

19) Temperature measurement rubber cork (HI 98183/4/5)

20) Serial communication rubber stopper (HI 98183/4/5).

21) USB Connector.

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SPECIFICATIONS

SPECIFICATIONSSPECIFICATIONS

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SPECIFICATIONSSPECIFICATIONS

SPECIFICATIONS

SPECIFICATIONSSPECIFICATIONS

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HI 98184 AND HI 98185

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SPECIFICATIONSSPECIFICATIONS

SPECIFICATIONS

SPECIFICATIONSSPECIFICATIONS

OPERATIONAL GUIDEOPERATIONAL GUIDE

OPERATIONAL GUIDE

OPERATIONAL GUIDEOPERATIONAL GUIDE

INITIAL PREPARATION

The instrument is supplied complete with rechargeable batteries. Proceed with a complete charging process before starting (see page 58).

To prepare the instrument for field measurements close the serial communication socket and all unused connector sockets with proper stopper (to ensure waterproof protection) (HI 98183/4/5 only). Use the holed temperature rubber cork for the temperature socket when temperature probe is connected (HI 98183/4/5 only).

Connect the pH electrode and the temperature probe to the BNC and temperature sockets on the top of the instrument. Push the pH electrode sleeve to cover the connector accomodation. The temperature probe is used in conjunction with the pH electrode to utilize the instrument's ATC capability, but it can also be used independently to take temperature measurements. If the probe is disconnected, temperature can be set manually with the ARROW keys (see page 13 for details).

Turn the instrument ON by pressing ON/OFF key. At start-up the display will show the Hanna logo for a few seconds followed by

the percentage indication of the remaining battery charge, then enters the measurement mode.

After measurement switch the instrument off, clean the electrode and store it with a few drops of HI 70300 storage solution in the protection cap (see page 62).

The auto-off feature turns the instrument off after a set period (default 30 min) with no button pressed to save battery life. To set another period or to disable this feature, see SETUP menu on page 33.

The auto-off backlight feature turns the backlight off after a set period (default 1 min) with no buttons pressed. To set another period or to disable this feature, see SETUP menu on page 33.

pH MEASUREMENTS

To take a pH measurement remove the electrode protective cap and simply submerge the tip of the electrode (4cm/1½”) and the temperature probe into the sample to be tested.

If necessary, press RANGE until the display changes to the pH mode. Use Mode key to select the pH resolution.

Allow for the electrode to adjust and reading to stabilize (hourglass symbol turns off).

On the pH screen are displayed:

• pH reading with the selected resolution.

• Temperature reading in the selected unit (ºC or ºF).

• Temperature compensation mode (MTC - manual, ATC - automatic).

While in MTC mode the indicate that the temperature can be manually changed using ARROW keys.

• Electrode condition during the calibration day.

• The buffers used in last pH calibration (if feature is enabled in SETUP).

• Battery level indicator.

• Available functional keys in according with the model.

In order to take more accurate pH measurements, make sure that the instrument is calibrated (see page 16 for details).

It is recommended that the electrode is always kept wet and rinsed thoroughly with the sample to be measured before use. The pH reading is directly affected by temperature. For accurate pH measurements, temperature must be taken into consideration. If the sample temperature is different from the temperature at which the pH electrode was kept, allow a few minutes to reach thermal equilibrium. To use the instrument's Automatic Temperature Compensation feature, submerge the temperature probe into the sample as close to the electrode as possible and wait for a few seconds.

If manual temperature compensation (MTC) is desired, the temperature probe must be disconnected from the instrument.

The display will show the default temperature of 25 ºC, the last measured temperature reading, or the last set temperature, with the “MTC” indication.

The “MTC” indication and the symbol light up on the LCD to indicate that the instrument is in MTC mode and the ARROW keys can be used to enter the desired temperature value.

Note: When in MTC the user can press and hold the ARROW keys, and the

instrument will start incrementing /decrementing the temperature value. The instrument keeps measuring and the display is updated periodically.

ORP MEASUREMENTS (not for HI 98180)

To perform ORP measurements, connect an optional ORP electrode (see “Accessories“ section) to the instrument and turn it ON.

If necessary, enter the mV mode by pressing RANGE until the display changes to mV.

Submerge the ORP electrode tip (4cm/1½”) into the sample to be tested and wait a few seconds for the reading to stabilize.

Measurements are displayed with 0.1 mV resolution. The “ATC” (or “MTC”) message is turned off because mV readings are not

temperature compensated. For accurate ORP measurements, the surface of the electrode must be clean

and smooth. Pretreatment solutions are available to condition the electrode and improve its response time (see “Accessories” section, page 65).

RELATIVE mV MEASUREMENTS (not for HI 98180)

To enter Relative mV mode, press “MODE” while in mV measurement mode. The relative mV reading will be displayed along with the Absolute mV value and the current temperature readings.

The relative mV reading is equal to the difference between the absolute mV input value and relative mV offset established in the relative mV calibration.

Note: If using the pH electrode while in mV mode, the instrument will measure the mV generated by the pH electrode.

ISE MEASUREMENTS (HI 98184, HI 98185 only)

To perform ion concentration measurements, connect an optional ISE electrode and the corresponding reference (if necessary) to the instrument and turn it ON.

Enter the ISE mode by pressing RANGE until the display changes to ISE range.

Submerge the ISE electrode tip (4cm/1½”) into the sample to be tested and wait a few seconds for the reading to stabilize.

The ISE reading will be displayed along with the current temperature reading.

The “ATC” (or “MTC”) message is turned off because ppm readings are not temperature compensated.

In order to take accurate ISE measurements, make sure that the appropriate ISE electrode type and ISE unit were set in SETUP menu (HI 98185 only), or the proper ion charge is set (HI 98184 only), and the instrument was calibrated (see ISE CALIBRATION for details, page 27).

Notes: • When the reading is out of range, the display will flash the closest

full-scale value.

• The instrument will display “----” on the primary LCD if it is not

calibrated. Perform at least a one-point calibration in order to take ISE measurements.

• Changing the ISE electrode or the ion charge will need ISE range calibration.

TEMPERATURE MEASUREMENTS

Connect the HI 7662 temperature probe (HI 98180/1/2) or the temperature connector (HI 98183/4/5) to the appropriate socket. Immerse the temperature probe (HI 98180/1/2) or pH electrode (HI 98183/4/5) into the sample and allow the reading on the secondary LCD to stabilize.

Note: The temperature can be displayed in Celsius degrees (ºC) or in Fahrenheit

degrees (ºF) (see SETUP for details, page 33) (not for HI 98180).

BACKLIGHT FEATURE

The instrument is provided with a Backlight feature, which can be easily toggled on and off through the keyboard by pressing LIGHT.

Note: The backlight automatically shuts off after a set period (see SETUP

for details, page 33) with no buttons pressed.

H CALIBRATIONH CALIBRATION

H CALIBRATION

H CALIBRATIONH CALIBRATION

It is recommended to calibrate the instrument frequently, especially if high accuracy is required.

The pH range should be recalibrated:

• Whenever the pH electrode is replaced.

• At least once a week.

• After testing aggressive chemicals.

• When calibration alarm time out is expired - “CAL DUE” blinks (if feature

is enabled in SETUP).

• If “Outside Cal Range” message blinks during pH measurement (the

measurement range is not covered by current calibration, if feature is enabled in SETUP).

PROCEDURE

All the familly instruments offers a choice of 7 memorized buffers (1.68, 4.01,

6.86, 7.01, 9.18, 10.01 and 12.45 pH). HI 98182/3/4/5 allow the user to set up to 5 custom buffers. The set custom buffers are the buffer values at 25 ºC.

When a custom buffer is selected during calibration, the “Custom” functional key is displayed on the LCD. Press Custom key in order to enter custom buffer changing mode. Use ARROW keys to change the value in a ±1.00 pH window, in according with the temperature reading and then Accept. Press ESC to leave custom buffers value unchanged.

For accurate pH measurements, it is recommended to perform a calibration in maximum allowed points. However, at least a two-point calibration is suggested.

The instrument will automatically skip the buffers used during calibration and the buffers which are in a ±0.2 pH window, around one of the calibrated buffers.

• Pour small quantities of selected buffer solutions into clean beakers. For accurate calibration use two beakers for each buffer solution, the first one for rinsing the electrode and the second one for calibration.

• Remove the protective cap and rinse the electrode with some of the buffer solution to be used for the first calibration point.

FIVE-POINT CALIBRATIONFIVE-POINT CALIBRATION

FIVE-POINT CALIBRATION

FIVE-POINT CALIBRATIONFIVE-POINT CALIBRATION

• Immerse the pH electrode and the temperature probe approximately 4 cm (1½”) into a buffer solution of your

9.18, 10.01, 12.45 or a custom buffer) and stir gently. The temperature probe should be close to the pH electrode.

choice (pH 1.68, 4.01, 6.86, 7.01,

• Press CAL. The instrument will display the measured pH, the LCD first expected buffer and the temperature reading.

• If necessary, press the ARROW keys to select a different buffer value.

• The “ ” tag will blink on the LCD until the reading is stable.

• When the reading is stable and close to the selected buffer, CFM functional key is displayed.

• Press CFM to confirm first point.

• The calibrated value and the second expected buffer value is then displayed on the LCD.

• After the first calibration point is confirmed, immerse the pH electrode and the temperature probe approximately 4 cm (1½”) into the second buffer solution and stir gently. The temperature probe should be close to the pH electrode.

• If necessary, press the ARROW keys to select a different buffer value.

• The “ ” tag will blink on the LCD until the reading is stable.

• When the reading is stable and close to the selected buffer, the CFM functional key is displayed.

• Press CFM to confirm calibration.

• The calibrated value and the third expected buffer value will be displayed.

• After the second calibration point is confirmed, immerse the pH electrode and the temperature probe approximately 4 cm (1½”) into the third buffer solution and stir gently. The temperature probe should be close to the pH electrode.

• If necessary, press the ARROW keys to select a different buffer value.

• The “ ” tag will blink on the LCD until the reading is stable.

• When the reading is stable and close to the selected buffer, the CFM functional key is displayed.

• Press CFM to confirm calibration.

• The calibrated value and the fourth expected value will be displayed.

• After the third calibration point is confirmed, immerse the pH electrode and the temperature probe approximately 4 cm (1½”) into the fourth buffer solution and stir gently. The temperature probe should be close to the pH electrode.

• If necessary, press the ARROW keys to select a different buffer value.

• The “ ” tag will blink on the LCD until the reading is stable.

• When the reading is stable and close to the selected buffer, the CFM functional key is displayed.

• Press CFM to confirm calibration.

• The calibrated value and the

• After the fourth calibration point is confirmed, immerse the pH electrode and the temperature probe approximately 4 cm (1½”) into the fifth buffer solution and stir gently. The temperature probe should be close to the pH electrode.

• If necessary, press the ARROW keys to select a different buffer value.

• The “ ” tag will blink on the LCD until the reading is stable.

• When the reading is stable and close to the selected buffer, the CFM functional key is displayed.

fifth

expected buffer will be displayed.

• Press CFM to confirm calibration.

• The instrument stores the calibration values and returns to normal measurement mode.

FOUR, THREE or TWO-POINT CALIBRATION

• Proceed as described in “FIVE-POINT CALIBRATION” section.

• Press CAL or ESC after the appropriate accepted calibration point. The instruments will return to measurement mode and will memorize the calibration data.

ONE-POINT CALIBRATION

Two SETUP selectable options are available for one-point calibration: Replace and Offset.

If the Replace option is selected, the slopes between current buffer and nearest lower and higher buffers will be reevaluated.

If the “Offset” option is selected, an electrode offset correction is performed keeping unchanged the existing slopes.

• Proceed as described in “FIVE-POINT CALIBRATION” section.

• Press CAL or ESC after the first calibration point was confirmed. The instruments will memorize the one-point calibration data and will return to measurement mode.

Notes: • Press MTC or MODE key to toggle between pH buffer selection and

the temperature reading during calibration while temperature probe is not connected (MTCmode)

• The displayed arrow is moving to the temperature value. Use

ARROW keys in order to change the temperature.

ERROR SCREENS Wrong buffer

The calibration cannot be confirmed.

The pH reading is not close to the selected buffer. Select another buffer using the ARROW keys or change the buffer.

Electrode Dirty/Broken alternatively with Buffer Contaminated The calibration cannot be confirmed.

The offset of the electrode is not in the accepted range. Check if the electrode is broken or clean it following the Cleaning Procedure (see page 65). Check the quality of the buffer. If necessary, change the buffer.

Wrong slope

The calibration cannot be confirmed.

The evaluated slope is less than the lowest accepted value (80% of default slope).

The evaluated slope is more than the highest accepted value (110 % of default slope).

Wrong old slope

An inconsistency between new and previous (old) calibration is detected. Clear old calibration parameters and proceed calibration from the current point. The instrument will keep all confirmed values during current calibration.

Note: For one-point calibration the electrode condition is not displayed in the

measurement screen.

Each time a buffer is confirmed, the new calibration parameters replace the old calibration parameters of the corresponding buffer.

If current confirmed buffer has no correspondence in the existing stored calibration and this is not full, the current buffer is added to the existing stored calibration.

If the existing stored calibration is full (five calibration points), after confirming the calibration point, the instrument will ask wich buffer will be replaced by current buffer.

Press ARROW keys to select another buffer to be replaced. Press CFM to confirm the buffer that will be replaced. Press CAL or ESC to leave replace mode. In this case, the buffer will not be

memorised. Note: The replaced buffer is not removed from calibration list and it can be

selected for the next calibration points.

WORKING WITH CUSTOM BUFFERS

If at least one custom buffer was set in SETUP menu, it can be selected for calibration by pressing the ARROW keys. The Custom functional key will be displayed.

Press Custom if you want to adjust the buffer value according with current temperature.

Use the ARROW keys to change the buffer value.

Press Accept to accept new value or ESC to exit changing mode. Note: Custom buffer value can be adjusted in a ±1.00 pH window, around

the set value.

WORKING WITH MILI pH BUFFERS

If calibration is invoked from mili pH range, the calibration buffer can be modified in a ±0.020 pH range in according with the label on the calibration buffer.

Press Change to enter buffer adjust mode.

Use ARROW keys to change the buffer value. Press Accept to accept new value or ESC to exit adjusting mode.

CLEAR CALIBRATION

Press Clear functional key when displayed or CLR key (HI 98180 & HI 98181) to clear old calibrations.

All old calibrations, are cleared and the instrument continues calibration. The points confirmed in current calibration are kept.

Note: If Clear calibration is invoked during the first calibration point, the

instrument returns to measurement mode.

ELECTRODE CONDITION

The display is provided with an icon, and a numeric value (unless the feature is disabled) which gives an indication of the electrode status after calibration.

The “condition” remains active until the end of the calibration day.

Note: The electrode condition is evaluated only if current calibration includes

at least two standard buffers.

CLEAN ELECTRODE WARNING

Each time pH calibration is performed, the instrument internally compares the new calibration with the one previously stored.

When this comparison indicates a significant difference, the “Clean electrode” warning message is displayed to advise the user that the pH electrode may need to be cleaned (see ELECTRODE CONDITIONING & MAINTENANCE section for details, page 61).

After cleaning, perform a new calibration. Note: If the calibration data are cleared, the comparison is done with the

default values.

PMET SREFFUBHp

Cº Fº 86.1 10.4 68.6 10.7 81.9 10.01 54.21

0 23 76.1 10.4 89.6 31.7 64.9 23.01 83.31

5 14 76.1 00.4 59.6 01.7 93.9 42.01 81.31

01 05 76.1 00.4 29.6 70.7 33.9 81.01 99.21

51 95 76.1 00.4 09.6 50.7 72.9 21.01 08.21

02 86 86.1 00.4 88.6 30.7 22.9 60.01 26.21

52 77 86.1 10.4 68.6 10.7 81.9 10.01 54.21

03 68 86.1 20.4 58.6 00.7 41.9 69.9 92.21

53 59 96.1 30.4 48.6 99.6 11.9 29.9 31.21

04 401 96.1 40.4 48.6 89.6 70.9 88.9 89.11

54 311 07.1 50.4 38.6 89.6 40.9 58.9 38.11

05 221 17.1 60.4 38.6 89.6 10.9 28.9 07.11

55 131 27.1 80.4 48.6 89.6 99.8 97.9 75.11

06 041 27.1 90.4 48.6 89.6 79.8 77.9 44.11

56 941 37.1 11.4 48.6 99.6 59.8 67.9 23.11

07 851 47.1 21.4 58.6 99.6 39.8 57.9 12.11

57 761 67.1 41.4 68.6 00.7 19.8 47.9 01.11

08 671 77.1 61.4 78.6 10.7 98.8 47.9 00.11

58 581 87.1 71.4 78.6 20.7 78.8 47.9 19.01

09 491 97.1 91.4 88.6 30.7 58.8 57.9 28.01

59 302 18.1 02.4 98.6 40.7 38.8 67.9 37.01

H BUFFER TEMPERATUREH BUFFER TEMPERATURE

H BUFFER TEMPERATURE

H BUFFER TEMPERATUREH BUFFER TEMPERATURE

DEPENDENCEDEPENDENCE

DEPENDENCE

DEPENDENCEDEPENDENCE

The temperature has an effect on pH. The calibration buffer solutions are affected by temperature changes to a lesser degree than normal solutions. During calibration the instrument will automatically calibrate to the pH value corresponding to the measured or set temperature.

During calibration the instrument will display the pH buffer value at 25 ºC.

RELATIVE RELATIVE

RELATIVE

RELATIVE RELATIVE

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• Press CAL when the instrument is in RELATIVE mV measurement mode. The relative mV value and the temperature values are displayed.

• Use the ARROW keys if you want to change the displayed relative mV value.

• When the reading is stable, in mV range and the Relative mV offset is inside the offset window (±2000 mV), CFM functional key is displayed.

• Press CFM to confirm relative mV calibration. The instrument will return to measurement mode.

• If the absolute mV reading is out of range or the Relative mV offset is out of the offset window, “Wrong relative offset” message is displayed.

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V CALIBRATIONV CALIBRATION

V CALIBRATION

V CALIBRATIONV CALIBRATION

HI 981HI 981

HI 981

HI 981HI 981

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Change the input value or the Relative mV value to complete the calibration process.

SESE

CALIBRATION CALIBRATION

CALIBRATION

SESE

CALIBRATION CALIBRATION

(HI 981(HI 981

(HI 981

(HI 981(HI 981

It is recommended to calibrate the instrument frequently, especially if high accuracy is required.

The ISE range should be recalibrated:

• Whenever the ISE probe or ion charge is changed.

• At least once a week.

• After testing aggressive chemicals.

• When calibration alarm time out is expired- “CAL DUE” tags blinks (if feature is enabled).

Due to electrode conditioning time, the electrode must be kept immersed a few seconds to stabilize. The user will be guided step by step during calibration with easy to follow tags on the LCD. This will make the calibration a simple and error-free procedure.

PROCEDURE

Select the proper ISE probe in SETUP menu (only for HI 98185) or select the proper Ion Charge (see SETUP for details, page 33).

Note: If ISE probe is not calibrated in at least one point, the “----” will be

displayed.

84 &84 &

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Pour small quantities of the buffer solutions into clean beakers. If possible, use plastic beakers to minimize any EMC interferences.

For accurate calibration and to minimize cross-contamination, use two beakers for each standard solution. One for rinsing the electrode and one for calibration.

The instrument offers a choice of six memorized standard solutions: 0.1, 1, 10, 100, 1000, 10000 ppm and calibration up to five points. For fluoride electrode the 2 ppm standard is also available (HI 98185 only).

Remove the protective cap from the ISE electrode.

FIVE-POINT CALIBRATION

• Immerse the ISE electrode approximately 4 cm (1½”) into the less concentrated standard solution and stir gently.

• Press CAL. The primary LCD will displays the ion concentration in the selected unit or “---” if not calibrated and first standard value.

• If necessary, press the ARROW keys to select a different standard value.

• The “ ” tag will blink on the LCD until the reading is stable.

• When the reading is stable and close to the selected standard, the CFM functional key is displayed.

• Press CFM to confirm calibration.

• The calibrated value and the second expected standard value will be displayed.

• After the first calibration point is confirmed, immerse the ISE electrode approximately 4 cm (1½”) into the second calibration solution.

• If necessary, press the ARROW keys to select a different standard value.

• The “ ” tag will blink on the LCD until the reading is stable.

• When the reading is stable and close to the selected standard, the CFM functional key is displayed.

• Press CFM to confirm calibration.

• The calibrated value and the third expected standard value will be displayed.

• After the second calibration point is confirmed, immerse the ISE electrode approximately 4 cm (1½”) into the third calibration solution.

• If necessary, press the ARROW keys to select a different standard value.

• The “ ” tag will blink on the LCD until the reading is stable.

• When the reading is stable and close to the selected standard, the CFM functional key is displayed.

• Press CFM to confirm calibration.

• The calibrated value and the fourth expected standard value will be displayed.

• After the third calibration point is confirmed, immerse the ISE electrode approximately 4 cm (1½”) into the fourth calibration solution.

• If necessary, press the ARROW keys to select a different standard value.

• The “ ” tag will blink on the LCD until the reading is stable.

• When the reading is stable and close to the selected standard, the CFM functional key is displayed.

• Press CFM to confirm calibration.

• The calibrated value and the fifth expected standard value will be displayed.

• After the fourth calibration point is confirmed, immerse the ISE electrode approximately 4 cm (1½”) into the fifth calibration solution.

• If necessary, press the ARROW keys to select a different standard value.

• The “ ” tag will blink on the LCD until the reading is stable.

• When the reading is stable and close to the selected standard, the CFM functional key is displayed.

• Press CFM to confirm calibration. The instrument stores the calibration value and returns to normal measurement mode.

Note: The instrument will automatically skip the standard solutions used

during calibration

FOUR, THREE, TWO or ONE-POINT CALIBRATION

• Proceed as described in “FIVE-POINT CALIBRATION” section.

• Press ESC or CAL key after the appropriate accepted calibration point. The instruments will return to measurement mode and will memorize the calibration data.

ERROR SCREENS

Wrong standard

The calibration cannot be confirmed.

The message appears if mV input is out of ±2000 mV range.

Wrong slope

The calibration cannot be confirmed. This message is displayed if slope is out of the accepted range. Slope under accepted value (30 % default slope).

Slope over accepted value (130 % default slope).

Wrong old slope

The instrument will display “----” on the primary LCD if is not calibrated or after all calibrations are cleared.

If “Clear” is pressed during the first calibration point, the instrument returns to measurement mode.

Notes: •Press T functional keys or MODE to select temperature value to be

changed if the temperature probe is not connected.

•ISE range is not temperature compensated

GOOD LABORATORY PRACTICE (GLP)GOOD LABORATORY PRACTICE (GLP)

GOOD LABORATORY PRACTICE (GLP)

GOOD LABORATORY PRACTICE (GLP)GOOD LABORATORY PRACTICE (GLP)

GLP is a set of functions that allows storage and retrieval of data regarding the maintenance and status of the electrode.

All data regarding pH, Rel mV or ISE calibration is stored for the user to review when necessary.

EXPIRED CALIBRATION

The instrument is provided with a real time clock (RTC), in order to monitor the time elapsed since the last pH calibration.

The real time clock is reset every time the instrument is calibrated and the “expired calibration” status is triggered when the instrument detects a calibration time out. The “CAL” “DUE” tags will start blinking to warn the user that the instrument should be recalibrated.

The calibration time out can be set (see SETUP for details, page 33) from 1 to 7 days or can be disabled.

For example, if a 4 days time out has been selected, the instrument will issue the alarm exactly 4 days after the last calibration.

However, if at any moment the expiration value is changed (e.g. to 5 days), then the alarm will be immediately recalculated and appear 5 days after the last calibration.

Notes: • When the instrument is not calibrated or calibration is cleared

(default values loaded) there is no “expired calibration”, and the display always shows the “CAL” “DUE” tags blinking.

• When an abnormal condition in the RTC is detected, the instrument

forces the “expired calibration” status.

LAST pH CALIBRATION DATA

The last pH calibration data is stored automatically after a successful calibration. To view the pH calibration data, press GLP when the instrument is in the pH

measurement mode.

The instrument will display a lot of data including calibration buffer, offset, slope, electrode condition.

Note: Buffers displayed in video inverse mode are from previous calibrations. The custom buffers are marked with an “*” on the right side of the buffer value. “No user calibration” message is displayed if all calibration are cleared or

the instrument was not calibrated in the pH range.

LAST RELATIVE mV CALIBRATION DATA

Last Relative mV calibration data is stored automatically after a successful calibration.

To view the Relative mV calibration data, press GLP key while in Relative mV measurement mode.

The instrument will display the Relative mV GLP information: calibration date, time and offset.

LAST ISE CALIBRATION DATA

Last ISE calibration data is stored automatically after a successful calibration. To view the ISE calibration data, press GLP while in ISE measurement mode. The instrument will display the ISE calibration information: calibration date,

time, slope, calibration status and electrode type.

Notes: • Press GLP or ESC at any moment and the instrument will return

to measurement mode.

• If calibration has not been performed, the instrument displays

“No user calibration” message.

• The calibration standards from previous calibration are displayed in video inverse mode.

SETUPSETUP

SETUP

SETUPSETUP

Setup mode allows viewing and modifying the measurement parameters. These are general SETUP parameters for all the ranges and range specific

parameters. The following table lists the general SETUP parameters, their valid range and

the factory default settings.

New Description Valid value Default Backlight Backlight level 0 to 8 4 Contrast Contrast level 0 to 20 10 Auto Light Off Time until backlight 1, 5, 10, 30 min 1

is ON

Auto Power Off Time after the instrument Disabled 30

is powered OFF 5, 10, 30, 60 min

Date/Time 01.01.2006 to 12.31.2009

00:00 to 23:59 date/time Time Format AM/PM or 24 hours 24 hours Date Format DD/MM/YYYY YYYY/MM/DD

MM/DD/YYYY

YYYY/MM/DD

YYYY-MM-DD

Mon DD, YYYY

DD-Mon-YYYY

YYYY-Mon-DD Language Message display language Up to four English

languages Temperature (not for HI 98180) ºC or ºF ºC

unit Beep ON Beeper Status Enabled or Disabled Disabled Instrument ID Instrument identification 0000 to 9999 0000 Baud Rate Serial Communication 600, 1200, 1800, 9600 9600 Meter Displays general

information informations

current

The following table lists the specific range parameters.

Item Description Valid value Default Calibr. Number of days after Disable, 1 to 7 days Disable

Timeout Calibration warning (pH & ISE) is displayed

First point Management of 1 point Replace or offset Replace mode (pH) calibration

Custom buffer Custom buffer Max. 5 buffers No (pH) setting

View calibr. Display calibration Enable or disabled Enable points (pH) points

Display out of Enable or disable Enable calibr.range warning

ISE probe Type of ISE probe Custom or Standard (18) Fluoride (HI 98185 only) ISE unit User, ppt, g/L, ppm, mg/L ppm (HI 98185 only) ppb, M, mol/L, mmol.L, % W/V Ion Charge ±1, ±2, none +1 (HI 98184 only)

GENERAL PARAMETER SCREENS

Backlight

Focus on the

Press Modify.

Use / keys to change the intensity then press Accept to confirm. Press ESC to leave without changing.

Contrast

Focus on the

Backlight

Contrast

item.

Press Modify. Use / keys to change contrast then press Accept to confirm.

Press ESC to leave without changing.

Auto Light Off

Focus on the

Press 5, 10 or 30 to change settings.

Auto Power Off

Focus on the Auto Power Off item.

Press Modify.

Auto Light Off

item.

Press ARROW keys to select interval then press Accept. Press ESC to leave without changing.

Date/Time

Focus on the

Date/Time

item.

Press Modify.

Use / keys to select item. Use ARROW keys to change focused values. Press Accept to confirm new setting, or ESC to leave without changing.

Time Format

Focus on the

Press functional key to change the option.

Date Format

Focus on the

Time Format

Date Format

item.

Press Modify.

Use ARROW keys to select date format then press Accept. Press ESC to leave without changing.

Language

Focus on the

Use the desired functional key to change the option. Wait until new language is loaded. If language load fails the instrument will try to reload current language.

If any language can’t be loaded, the instrument will work in safe mode. In this mode all messages are displayed in English and Help is not available.

Temperature unit

Focus on the

Press the displayed functional key in order to change the temperature unit.

Beep On

Focus on

Language

Temperature

Beep On

item.

unit item.

item.

Press the displayed functional key to enable/disable beep. When enabled, beep sounds as a short beep every time a key is pressed or

when the calibration can be confirmed. A long beep alert that the pressed key is not active or a wrong condition is

detected while in calibration.

Instrument ID

Focus on the

Press Modify.

Use ARROW keys to change the instrument ID. Press Accept to confirm or ESC to exit without saving.

Baud Rate

Focus on the

Instrument ID

Baud Rate

item.

Press Modify.

Use ARROW keys to select the desired communication baud. Press Accept to confirm or ESC to exit.

Meter information

Focus on the

Press Select. The meter informations are displayed:

-firmware version

-language version

-mV and temperature factory calibration time/date

-battery capacity

RANGE SPECIFIC PARAMETERS SCREENS

Calibration Timeout

Focus on the

Meter Information

Calibration Timeout

item.

Press Modify.

Use ARROW keys to set desired value. Press Accept to confirm or ESC to return without saving.

Note: If enabled “CAL DUE” warning will be displayed, the set number of

days after calibration is over passed.

First point mode

Focus on the

Press the displayed functional key in order to change the option. First point mode refers to the behaviour of the instrument regarding “One

point calibration”. If Offset is set, after one point calibration the instrument evaluate the offset

and keep unchanged the slopes.

Custom Buffers

Focus on the

First Point

item.

Custom Buffers

item.

Press Modify.

Press Delete to delete focused buffer.

Press Add to add a new buffer to the list (max 5).

Press Modify to set custom buffer value.

Use ARROW keys to change the value. Press Accept to confirm custom buffer value or ESC to exit without saving.

View Calibration Points

Focus on the

Press the displayed functional key to change option. If option is enabled the calibration buffers corresponding to the last calibration

are displayed in the pH measurement screen.

Out of Cal-Range Warning

Focus on the

Calibration Point

item.

Out of Cal-Range Warning

item.

Press the displayed functional key in order to change option. If enabled, the “Out Cal Range” message will be displayed if the pH reading

is not within the calibration range.

ISE probe

Focus on the

Press Custom in order to set the parameters for a custom probe. Press Standard in order to select one probe from the standard probes list. If Custom is pressed:

Use ARROW keys to focus on the parameter to be changed (“Change Slope” or “Molar Weight”).

Focus on

ISE probe

Change Slope

item.

Use ARROW keys in order to select the desired combination. If None/-59.16 is selected the slope of the probe can be changed by pressing

Modify key.

Press Modify.

Use ARROW keys to change the slope. Press Accept to confirm or ESC to exit.

Focus on

Molar Weight

Press Modify in order to change molar weight.

Use ARROW keys to change the value. Press Accept to confirm or ESC to exit. If Standard was pressed.

Use ARROW keys to focus on the desired electrode. Press Accept to confirm setting or ESC to exit. Press View to see probe parameters.

ISE unit

Focus on the

ISE unit

item.

Press Modify.

Use ARROW key to select unit. Press Accept to confirm selection or ESC to exit. Note:• If the unit is changed or “User” is selected a warning message will

be displayed to alert that the ISE range must be calibrated.

• If a new probe was selected or custom probe parameter are changed, the ISE range must be calibrated.

LOGGINGLOGGING

LOGGING

LOGGINGLOGGING

This feature allows the user to log pH, Rel mV or ISE measurements. All logged data can be transferred to a PC through the USB (RS232) port.

The maximum logging space is 300 record locations (100 records on each range).

LOGGING THE CURRENT DATA

To store the current reading into memory, press LOG while in measurement mode.

The instrument will display for few seconds the record number and the amount of the free log space.

If the LOG space is full, the “Log space is full” message will be displayed for few seconds when Log key is invoked. Enter View Logged Data Mode and delete records in order to free log space.

VIEW LOGGED DATA

Press RCL to retrieve the information stored while in measurement mode for the specific range. The list of records is displayed.

If no data were logged, the instrument will display “No Records” message.

Use ARROW keys to scroll between the records from the list. Press Delete All to enter Press Delete to enter Press More to view more information of the focused record.

Delete All

Delete records

screen.

If More is pressed.

Use ARROW keys to scroll between complete log information. If Delete is pressed.

Use ARROW key to focus the record to be deleted and then press CFM. Press ESC to exit. If Delete All is pressed the instrumet asks for confirmation. Press CFM to confirm or ESC to exit without deleting.

MEMORY FUNCTIONMEMORY FUNCTION

MEMORY FUNCTION

MEMORY FUNCTIONMEMORY FUNCTION

(HI 98180, HI 98181 ONLY)(HI 98180, HI 98181 ONLY)

(HI 98180, HI 98181 ONLY)

(HI 98180, HI 98181 ONLY)(HI 98180, HI 98181 ONLY)

Press Mem functional key.

The last reading and all information from the current screen will be memorised. Press and hold down MR functional key.

The previously memorized reading will be displayed when MR is pressed.

Note: The MR key will be displayed only after first reading is memorised.

together with all information memorized

utoEndutoEnd

utoEnd

utoEndutoEnd

To freeze the first stable reading on the LCD press AutoEnd while the instrument is in measurement mode.

The ”Wait” symbol will blink until the reading is stable. When the reading is stable, “Hold” icon will be displayed.

Press Continue in order to enter continuous reading mode.

V V

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V V

TEMPERATURE CALIBRATION TEMPERATURE CALIBRATION

and

TEMPERATURE CALIBRATION

andand

TEMPERATURE CALIBRATION TEMPERATURE CALIBRATION

(for technical personnel only)

All the instruments are factory calibrated for mV and temperature. Hanna’s temperature probes are interchangeable and no temperature

calibration is needed when they are replaced. If the temperature or ORP measurements are inaccurate, calibration should

be performed. For an accurate recalibration, contact your dealer or the nearest Hanna

Customer Service Center, or follow the instructions below.

ENTER CALIBRATION MODE

With the instrument off, press and hold down the / then power on the instrument. The calibration screen is displayed. Press “T” functional key to enter the temperature calibration mode.

TEMPERATURE CALIBRATION

• Prepare a vessel containing ice and water and another one containing hot water (at approximately the vessels to minimize temperature changes.

• Use a calibrated thermometer with a resolution of 0.1 ºC as a reference thermometer. Connect the temperature probe to the appropriate socket.

50 ºC or 122 ºF). Place insulation material around

• Immerse the temperature probe or the pH probe including temperature sensor into the vessel with ice and water as close as possible to the reference thermometer. Allow a few seconds for the probe to stabilize.

• Use the ARROW keys to set the calibration point value to that of ice and water mixture, measured by the reference thermometer. When the reading is stable and close to the selected calibration point, the CFM functional key is displayed.

• Press CFM to confirm.

• The second expected calibrated point is displayed.

• Immerse the temperature probe into the second vessel as close as possible to the reference thermometer. Allow a few seconds for the probe to stabilize.

• Use the ARROW keys to set the calibration point value to that of the hot water.

• When the reading is stable and close to the selected calibration point, CFM functional key is displayed.

• Press CFM to confirm. The instrument returns to measurement mode.

Note: Use ARROW keys to change calibration point if necessary (±10.0 ºC)

around the point. If the reading is not close to the selected calibration point, “Wrong”

message will blink. Change the temperature probe and restart calibration.

mV CALIBRATION

A two point calibration can be performed at 0 mV and 1800 mV.

• Attach to the BNC connector a mV simulator with an accuracy of ±0.1 mV.

• Enter the calibration screen. Press mV functional key.

• Set 0.0 mV on the simulator.

• When the reading is stable and close to the selected calibration point, the CFM functional key is displayed.

• Press CFM to confirm. The second calibration point of 1800 mV will be

displayed.

• Set 1800.0 mV on the simulator.

• When the reading is stable and close to the selected calibration point, the CFM functional key is displayed.

• Press CFM to confirm. The instrument returns to calibration screen.

• Press ESC to return to measurement mode.

Notes:•If the reading is not close to the selected calibration point, “WRONG”

tag will blink. Verify calibration condition or contact your vendor if you cannot calibrate.

•Press CAL or ESC in any moment of the calibration process. The

instrument will return in the measurement mode.

PC INTERFACEPC INTERFACE

PC INTERFACE

PC INTERFACEPC INTERFACE

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Data transmission from the instrument to the PC can be done with the HI 92000 Windows® compatible software (optional). HI 92000 also offers graphing and on-line help feature.

Data can be exported to the most popular spreadsheet programs for further analysis. To connect your instrument to a PC, use an USB cable connector. Make sure

that your instrument is switched off and plug one connector to the instrument

USB socket and the other to the serial or USB port of your PC. Note: • If you are not using Hanna Instruments HI 92000 software,

please see the following instructions.

SENDING COMMANDS FROM PC

It is also possible to remotely control the instrument with any terminal program. Use an USB cable to connect the instrument to a PC, start the terminal program and set the communication options as follows: 8, N, 1, no flow control.

COMMAND TYPES

To send a command to the instrument follow the next scheme:

where: <command prefix> is the 16 ASCII character

<command> is the command code.

Note: Either small or capital letters can be used.

HI 98180, HI 98181) HI 98180, HI 98181)

HI 98180, HI 98181)

HI 98180, HI 98181) HI 98180, HI 98181)

SIMPLE COMMANDS

KF1 Is equivalent to pressing functional key 1 KF2 Is equivalent to pressing functional key 2 KF3 Is equivalent to pressing functional key 3 RNG Is equivalent to pressing RANGE key MOD Is equivalent to pressing MODE key CAL Is equivalent to pressing CAL key UPC Is equivalent to pressing the UP arrow key DWC Is equivalent to pressing the DOWN arrow key RCL Is equivalent to pressing RCL key SET Is equivalent to pressing SETUP key CLR Is equivalent to pressing CLR key

OFF Is equivalent to pressing OFF key CHR xx Change the instrument range according with the parameter

value (xx):

• xx=00 pH range/0.001 resolution

• xx=01 pH range/0.01 resolution

• xx=02 pH range/0.1 resolution

• xx=03 mV range

• xx=04 Relative mV range

• xx=05 ISE range (HI 98184, HI 98185)

The instrument will answer for these commands with:

where: <STX> is 02 ASCII code character (start of text)

<ETX> is 03 ASCII code character (end of text) <answer>: <ACK> is 06 ASCII code character (recognized command) <NAK> is 21 ASCII code character (unrecognized command) <CAN> is 24 ASCII code character (corrupted command)

COMMANDS REQUIRING AN ANSWER

The instrument will answer for these commands with:

<STX> <answer> <checksum> <ETX> where the checksum is the bytes sum of the answer string sent as 2 ASCII characters. All the answer messages are with ASCII characters. RAS Causes the instrument to send a complete set of readings in

according with the current range:

• pH, temperature and mV reading on pH range.

• Rel mV, absolute mV and temperature reading on Rel mV range.

• concentration, mV and temperature reading on ppm range (HI 98184, HI 98185).

The answer string contains:

• Meter mode (2 chars):

• 00 - pH range (0.001 resolution)

• 01 - pH range (0.01 resolution)

• 02 - pH range (0.1 resolution)

• 03 - mV range

• 04 - Rel mV range

• 05 - ISE range

• Meter status (2 chars of status byte): represents a 8 bit hexadecimal encoding.

• 0x10 - temperature probe is connected

• 0x01 - new GLP data available

• 0x02 - new SETUP parameter

• 0x04 - out of calibration range

• 0x08 - the meter is in autoend point mode

• Reading status (2 chars): R - in range, O - over range, U under range. First character corresponds to the primary reading. Second character corresponds to mV reading.

• Primary reading (corresponding to the selected range) 11 ASCII chars, including sign and decimal point and exponent.

• Secondary reading (only when primary reading is not mV) - 7 ASCII chars, including sign and decimal point.

• Temperature reading - 7 ASCII chars, with sign and two decimal points, always in ºC.

MDR Requests the instrument model name and firmware code (16 ASCII

chars).

GLP Requests the calibration data record.

The answer string contains:

• GLP status (1 char): represents a 4 bit hexadecimal encoding.

• 0x01 - pH calibration available

• 0x02 - Rel mV calibration available

• 0x04 - ISE calibration available

• pH calibration data (if available), which contains:

• the number of calibrated buffers (1 char)

• the ion charge, with sign (2 chars)

• the offset, with sign and decimal point (7 chars)

• the average of slopes, with sign and decimal point (7 chars)

• the calibration time, yymmddhhmmss (12 chars)

• buffers information (for each buffer)

• type (1 char): 0 - standard, 1 - custom

• status (1 char): N (new) - calibrated in last calibration; O (old) - from an old calibration.

• warnings during calibration (2 chars): 00 - no

warning, 04 - Clean Electrode warning.

• buffer value, with sign and decimal point and exponent (11 chars).

• calibration time, yymmddhhmmss (12 chars).

• electrode condition, with sign (3 chars). The “-01” code means not calculated.

• Rel mV calibration data (if available), which contains:

• the calibration offset, with sign (7 chars)

• the calibration time, yymmddhhmmss (12 chars).

• ISE calibration data (if available), which contains:

• the number of calibrated standards (1 char)

• the ion charge, with sign (2 chars)

• the calibration slope, with sign and decimal point (7 chars)

• the calibration time, yymmddhhmmss (12 chars)

• standards information (for each standard)

• type (1 char): 0 - always standard solution.

• status (1 char):N (new) - calibrated in last calibration;

O (old) - from an old calibration.

• warnings during calibration (2 chars): 00 - no warning.

• standard value, with sign and decimal point and

exponent (11 chars).

• calibration time, yymmddhhmmss (12 chars).

PAR Requests the setup parameters setting.

The answer string contains:

• Instrument ID (4 chars)

• Calibration Alarm time out for pH (2 chars)

• Calibration Alarm timeout for ISE (2 chars) - if ISE available

• SETUP information (2 chars): 8 bit hexadecimal encoding.

• 0x01 - beep ON (else OFF)

• 0x04 - degrees Celsius (else degrees Fahrenheit)

• 0x08 - Offset calibration (else Point calibration)

• Auto-off/Light time (3 chars)

• Auto power off time (3 chars)

• The number of custom buffers (1 char)

• The custom buffer values, with sign and decimal point, for each defined custom buffer (7 chars)

• The ID of the ISE electrode (2 chars) - if ISE available

• The molar weight of the selected ION, with sign and decimal point (9 ASCII characters)

• The ion charge (2 chars)

• The ISE unit (2 chars)

• The short name of the selected language (3 chars)

NSLx Requests the number of logged samples (4 chars).

The command parameter (1 char):

• P - request for pH range

• M - request for mV and Rel mV ranges

• I - request for ISE range

LODPxxx Requests the xxxth pH record logged data. LODMxxx Requests the xxxth mV/Rel mV record logged data. LODIxxx Requests the xxxth ISE record logged data (HI 98184, HI 98185). LODPALL Requests all pH Log on demand. LODMALL Requests all mV/Rel mV Log on demand. LODIALL Requests all ISE Log on demand (HI 98184, HI 98185).

The answer string for each record contains:

• The logged mode (2 chars):

• 00 - pH range (0.001 resolution)

• 01 - pH range (0.01 resolution)

• 02 - pH range (0.1 resolution)

• 03 - mV range

• 04 - Rel mV range

• 05 - ISE range

• Reading status (1 char): R, O, U

• Calculated reading, with sign and decimal point and exponent (11 chars) - for pH, Rel mV and ISE range

• Temperature reading, with sign and two decimal points (7 chars)

• mV reading status (1 char): R, O, U

• The mV reading, with sign and decimal point (7 chars)

• The logged time, yymmddhhmmss (12 chars)

• The calibration slope, with sign and decimal point (7 chars)

- not available for Rel mV range

• The calibration offset, with sign and decimal point (7 chars) not available for ISE

• Temperature probe presence (1 char)

Notes: • “Err8” is sent if the instrument is not in measurement mode.

• “Err6” is sent if the requested range is not available.

• “Err4” is sent if the requested set parameter is not available.

• “Err3” is sent if the Log on demand is empty.

• “Err9” is sent if the battery power is less than 30%.

• Invalid commands will be ignored.

BATTERIESBATTERIES

BATTERIES

BATTERIESBATTERIES

RECHARGING/REPLACEMENTRECHARGING/REPLACEMENT

RECHARGING/REPLACEMENT

RECHARGING/REPLACEMENTRECHARGING/REPLACEMENT

The instrument is ready with rechargeable batteries inside. First time you start working with the instrument or when the rechargeable

batteries are changed with new ones, perform the following procedure:

• Work with the instrument until the rechargeable batteries are fully discharged

• Perform a complete charging cycle (about 16hours). Repeat this procedure 3 times. It is recommended to recharge the rechargeable batteries as soon as the

battery indicator does not show full scale before starting in field measurements or every time you finish your work with your instrument.

If the battery capacity is less than 20 % the serial communication and the backlight feature are not available.

To replace the rechargeable batteries, follow the next steps:

• Turn OFF the instrument.

• Unscrew the screw from the bottom side of the instrument.

• Remove the battery holder and the old batteries.

• Insert four new 1.2V AA 1300 mAh NiMH rechargeable batteries in the battery compartment while paying attention to the correct polarity.

• Push the battery holder and tighten the screws.

To recharge the rechargeable batteries, follow the next steps:

• Connect the 12VDC power adapter to the main line and to the main line of the battery recharger. The front LED will turn ON.

• Place the instrument in the battery recharger case. A charging animation will be displayed if the battery capacity is less than 100 %.

• The complete charging process takes about 16 hours.

Notes: • As the charging process is performed at low current, the instru-

ment can be left on the recharger more than 16 hours, without damaging the rechargeable batteries.

• It is recommended to turn off the instrument while recharging the batteries. The measurements can be affected by the recharging process.

• Batteries recharging must only take place in a non hazardous area, using the HI 710042 inductive recharger.

WARNING:

Do not replace the rechargeable batteries with normal alkaline batteries. Do not put ever the instrument with alkaline batteries inside on the recharger. The manufacturer don’t assume any obligation for malfunctioning appeared

as a result of using alkaline batteries. Note: The instrument is provided with the BEPS (Battery Error Prevention

System) feature, which automatically turns the instrument off when the batteries level is too low to ensure reliable readings.

TEMPERATURE CORRELATIONTEMPERATURE CORRELATION

TEMPERATURE CORRELATION

TEMPERATURE CORRELATIONTEMPERATURE CORRELATION

FOR FOR

FOR

FOR FOR

The resistance of glass electrodes partially depends on the temperature. The lower the temperature, the higher the resistance. It takes more time for the reading to stabilize if the resistance is higher. In addition, the response time will suffer to a greater degree at temperatures below 25 ºC (77 ºF).

Since the resistance of the pH electrode is in the range of 50 – 200 Mohm, the current across the membrane is in the pico Ampere range. Large currents can disturb the calibration of the electrode for many hours.

For these reasons high humidity environments, short circuits and static discharges are detrimental to a stable pH reading.

The pH electrode’s life also depends on the temperature. If constantly used at high temperatures, the electrode life is drastically reduced.

Typical Electrode Life

Ambient Temperature 1 – 3 years 90 ºC (194 ºF) Less than 4 months 120 ºC (248 ºF) Less than 1 month

Alkaline Error

High concentrations of sodium ions interfere with readings in alkaline solutions. The pH at which the interference starts to be significant depends upon the composition of the glass. This interference is called alkaline error and causes the pH to be underestimated. Hanna’s glass formulations have the indicated characteristics.

Sodium Ion Correction for the Glass at 20-25 ºC (68-77 ºF) Concentration pH Error

0.1 Mol L-1 Na

1.0 Mol L-1 Na

H SENSITIVE GLASSH SENSITIVE GLASS

H SENSITIVE GLASS

H SENSITIVE GLASSH SENSITIVE GLASS

13.00

13.50

14.00

12.50

13.00

13.50

14.00

0.10

0.14

0.20

0.10

0.18

0.29

0.40

ELECTRODE CONDITIONINGELECTRODE CONDITIONING

ELECTRODE CONDITIONING

ELECTRODE CONDITIONINGELECTRODE CONDITIONING

& MAINTENANCE& MAINTENANCE

& MAINTENANCE

& MAINTENANCE& MAINTENANCE

Not present in gel electrodes.

PREPARATION PROCEDURE

Remove the electrode protective cap. DO NOT BE ALARMED IF ANY SALT DEPOSITS ARE PRESENT. This is normal with electrodes and they will disappear when rinsed with water. During transport tiny bubbles of air may have formed inside the glass bulb. The electrode cannot function properly under these conditions. These bubbles can be removed by "shaking down" the electrode as you would do with a glass thermometer. If the bulb and/or junction are dry, soak the electrode in HI 70300 Storage Solution for at least one hour.

For refillable electrodes:For refillable electrodes:

For refillable electrodes:

For refillable electrodes:For refillable electrodes:

If the filling solution (electrolyte) is more than 2½ cm (1”) below the fill hole, add HI 7082 or HI 8082 3.5M KCl Electrolyte Solution for double junction or HI 7071 or HI 8071 3.5M KCl+AgCl Electrolyte Solution for single junction electrodes.

For faster response, unscrew the fill hole screw during measurements.

®®

For AmpHelFor AmpHel

For AmpHel

For AmpHelFor AmpHel

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electrodes: electrodes:

electrodes:

electrodes: electrodes:

If the electrode does not respond to pH changes, the battery run down and the electrode should be replaced.

MEASUREMENT

Rinse the pH electrode tip with distilled water. Immerse the tip (bottom 4 cm /1½”) in the sample and stir gently for a few seconds.

For a faster response and to avoid cross-contamination of the samples, rinse the electrode tip with a few drops of the solution to be tested, before taking measurements.

See that the sleeve holes of the ORP probe are completly submerged.

STORAGE PROCEDURE

To minimize clogging and assure a quick response time, the glass bulb and the junction of pH electrode should be kept moist and not allowed to dry out.

Replace the solution in the protective cap with a few drops of HI 70300 or

HI 80300 Storage Solution or, in its absence, Filling Solution (HI 7071 or HI 8071 for single junction and HI 7082 or HI 8082 for double junction

electrodes). Follow the Preparation Procedure on page 61 before taking measurements.

Note: NEVER STORE THE ELECTRODE IN DISTILLED OR DEIONIZED WATER.

PERIODIC MAINTENANCE

Inspect the electrode and the cable. The cable used for connection to the instrument must be intact and there must be no points of broken insulation on the cable or cracks on the electrode stem or bulb. Connectors must be perfectly clean and dry. If any scratches or cracks are present, replace the electrode. Rinse off any salt deposits with water.

pH Probe Maintenance

For refillable electrodes:For refillable electrodes:

For refillable electrodes:

For refillable electrodes:For refillable electrodes:

Refill the reference chamber with fresh electrolyte (HI 7071 or HI 8071 for single junction or HI 7082 or HI 8082 for double junction electrodes). Allow the electrode to stand upright for 1 hour.

Follow the Storage Procedure above.

pH CLEANING PROCEDURE

•

General

•

Protein

•

Inorganic

•

Oil/grease

IMPORTANT: After performing any of the cleaning procedures, rinse the electrode thoroughly with distilled water, refill the reference chamber with fresh electrolyte (not necessary for gel-filled electrodes) and soak the electrode in HI 70300 or HI 80300 Storage Solution for at least 1 hour before taking measurements.

Soak in Hanna HI 7061 or HI 8061 General Cleaning Solution for approximately ½ hour.

Soak in Hanna HI 7073 or HI 8073 Protein Cleaning Solution for 15 minutes.

Soak in Hanna HI 7074 Inorganic Cleaning Solution for 15 minutes.

Rinse with Hanna HI 7077 or HI 8077 Oil and Fat Cleaning Solution.

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TROUBLESHOOTING GUIDETROUBLESHOOTING GUIDE

TROUBLESHOOTING GUIDE

TROUBLESHOOTING GUIDETROUBLESHOOTING GUIDE

ACCESSORIESACCESSORIES

ACCESSORIES

ACCESSORIESACCESSORIES

pH CALIBRATION SOLUTIONS

HI 50004-01 pH 4.01 Buffer Solution, 20 mL sachet, 10 pcs HI 50004-02 pH 7.01 Buffer Solution, 20 mL sachet, 25 pcs HI 50007-01 pH 10.01 Buffer Solution, 20 mL sachet, 10 pcs HI 50007-02 pH 4.01 Buffer Solution, 20 mL sachet, 25 pcs HI 50010-01 pH 7.01 Buffer Solution, 20 mL sachet, 10 pcs HI 50010-02 pH 10.01 Buffer Solution, 20 mL sachet, 25 pcs HI 5016 pH 1.68 Buffer Solution, 500 mL bottle HI 5004 pH 4.01 Buffer Solution, 500 mL bottle HI 5068 pH 6.86 Buffer Solution, 500 mL bottle HI 5007 pH 7.01 Buffer Solution, 500 mL bottle HI 5091 pH 9.18 Buffer Solution, 500 mL bottle HI 5010 pH 10.01 Buffer Solution, 500 mL bottle HI 5124 pH 12.45 Buffer Solution, 500 mL bottle HI 8004L pH 4.01 Buffer Solution in FDA approved bottle, 500 mL HI 8006L pH 6.86 Buffer Solution in FDA approved bottle, 500 mL HI 8007L pH 7.01 Buffer Solution in FDA approved bottle, 500 mL HI 8009L pH 9.18 Buffer Solution in FDA approved bottle, 500 mL HI 8010L pH 10.01 Buffer Solution in FDA approved bottle, 500 mL

ELECTRODE STORAGE SOLUTION

HI 70300L Storage Solution, 500 mL bottle HI 80300L Storage Solution in FDA approved bottle, 500 mL

ELECTRODE CLEANING SOLUTIONS

HI 70000P Electrode Rinse Solution, 20 mL sachet, 25 pcs HI 7061L General Purpose Solution, 500 mL bottle HI 7073L Protein Cleaning Solution, 500 mL bottle HI 7074L Inorganic Cleaning Solution, 500 mL bottle HI 7077L Oil & Fat Cleaning Solution, 500 mL bottle HI 8061L General Purpose Solution in FDA approved bottle, 500 mL HI 8073L Protein Cleaning Solution in FDA approved bottle, 500 mL HI 8077L Oil & Fat Cleaning Solution in FDA approved bottle, 500 mL

ELECTRODE REFILL ELECTROLYTE SOLUTIONS

HI 7071 3.5M KCl+AgCl Electrolyte for single junction electrodes HI 7072 1M KNO3 Electrolyte HI 7082 3.5M KCl Electrolyte for double junction electrodes

HI 8071 3.5M KCl + AgCl Electrolyte in FDA approved bottle, 4x30 mL, for

single junction electrodes

HI 8072 1M KNO3 Electrolyte in FDA approved bottle, 4x30 mL

HI 8082 3.5M KCl Electrolyte in FDA approved bottle, 4x30 mL, for

double junction electrodes

HI 8093 1M KCl+AgCl Electrolyte in FDA approved bottle, 4x30 mL

ORP PRETREATMENT SOLUTIONS

HI 7091L Reducing Pretreatment Solution, 500 mL bottle HI 7092L Oxidizing Pretreatment Solution, 500 mL bottle

ORP SOLUTIONS

HI 7020L Test Solution 200-275 mV, 500 mL bottle HI 7021L Test Solution 240 mV, 500 mL bottle HI 7022L Test Solution 470 mV, 500 mL bottle

pH ELECTRODES

All electrodes part numbers ending in B are supplied with a BNC connector and 1 m (3.3') cable, as shown below:

HI 1043B

Glass-body, double junction, refillable, combination pH electrode. Use: strong acid/alkali.

HI 1053B

Glass-body, triple ceramic, conic shape, refillable, combination pH electrode. Use: emulsions.

HI 1083B

Glass-body, micro, Viscolene, non-refillable, combination pH electrode. Use: biotechnology, micro titration.

HI 1131B

Glass-body, single junction, refillable, combination pH electrode. Use: general purpose.

HI 1330B

Glass-body, semimicro, single junction, refillable, combination pH electrode. Use: laboratory, vials.

HI 1331B

Glass-body, semimicro, single junction, refillable, combination pH electrode. Use: flasks.

HI 1230B

Plastic-body (PEI), double junction, gel-filled, combination pH electrode. Use: general, field.

HI 2031B

Glass-body, semimicro, conic, refillable, combination pH electrode. Use: semisolid products.

HI 1332B

Plastic-body (PEI), double junction, refillable, combination pH electrode. Use: general purpose.

FC 100B

Plastic-body (PVDF), double junction, refillable, combination pH electrode. Use: general purpose for food industry.

FC 200B

Plastic-body (PVDF), open junction, conic, Viscolene, non-refillable, combination pH electrode. Use: meat & cheese.

FC 210B

Glass-body, double junction, conic, Viscolene, non-refillable, combination pH electrode.

Use: milk, yogurt.

FC 220B

Glass-body, triple-ceramic, single junction, refillable, combination pH electrode. Use: food processing.

FC 911B

Plastic-body (PVDF), double junction, refillable with built-in amplifier, combination pH electrode. Use: very high humidity.

HI 1413B

Glass-body, single junction, flat tip, Viscolene, non-refillable, combination pH electrode. Use: surface measurement.

ORP ELECTRODES

HI 3131B

Glass-body, refillable, combination platinum ORP electrode. Use: titration.

HI 3230B

Plastic-body (PEI), gel-filled, combination platinum ORP electrode. Use: general purpose.

HI 4430B

Plastic-body (PEI), gel-filled, combination gold ORP electrode. Use: general purpose.

Consult the Hanna General Catalog for a complete and wide selection of electrodes.

EXTENSION CABLE FOR SCREW-TYPE ELECTRODES (SCREW TO BNC ADAPTER)

HI 7855/1 Extension cable 1 m (3.3') long HI 7855/3 Extension cable 3 m (9.9') long

OTHER ACCESSORIES

HI 710042 Inductive Recharger HI 721317 Rugged carrying case HI 740157 Plastic electrode refilling pipet (20 pcs) HI 76405 Electrode holder HI 7662 Stainless steel Temperature probe with 1 m (3.3') screened cable HI 8427 pH and ORP electrode simulator with 1 m (3.3') coaxial cable

ending in female BNC connectors

HI 931001 pH and ORP electrode simulator with LCD and 1 m (3.3') coaxial

cable ending in female BNC connectors

RECOMMENDATIONS FOR USERS

Before using these products, make sure they are entirely suitable for the environment in which they are used.

Operation of these instruments in residential areas could cause unacceptable interferences to radio and TV equipment, requiring the operator to follow all necessary steps to correct interferences.

The glass bulb at the end of the pH electrode is sensitive to electrostatic discharges. Avoid touching this glass bulb at all times.

During operation, ESD wrist straps should be worn to avoid possible damage to the electrode by electrostatic discharges.

Any variation introduced by the user to the supplied equipment may degrade the instruments’ EMC performance.

To avoid electrical shock, do not use these instruments when voltages at the measurement surface exceed 24 VAC or 60 VDC.

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

Hanna Instruments reserves the right to modify the design, construction

and appearance of its products without advance notice.

SALES AND TECHNICAL SERVICE CONTACTS

Australia:

Tel. (03) 9769.0666 • Fax (03) 9769.0699

China:

Tel. (10) 88570068 • Fax (10) 88570060

Egypt:

Tel. & Fax (02) 2758.683

Germany:

Tel. (07851) 9129-0 • Fax (07851) 9129-99

Greece:

Tel. (210) 823.5192 • Fax (210) 884.0210

Indonesia:

Tel. (21) 4584.2941 • Fax (21) 4584.2942

Japan:

Tel. (03) 3258.9565 • Fax (03) 3258.9567

Korea:

Tel. (02) 2278.5147 • Fax (02) 2264.1729

Malaysia:

Tel. (603) 5638.9940 • Fax (603) 5638.9829

Singapore:

Tel. 6296.7118 • Fax 6291.6906

South Africa:

Tel. (011) 615.6076 • Fax (011) 615.8582

Taiwan:

Tel. 886.2.2739.3014 • Fax 886.2.2739.2983

Thailand:

Tel. 66.2619.0708 • Fax 66.2619.0061

05/06

United Kingdom:

Tel. (01525) 850.855 • Fax (01525) 853.668

USA:

Tel. (401) 765.7500 • Fax (401) 765.7575

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

MAN98185

Hanna Instruments HI 98180 User Manual

Specifications and Main Features

Frequently Asked Questions

User Manual