Hanna Instruments HI 98127 User guide

Instruction Manual

HI 98127 - HI 98128

Waterproof

pH & temperature meters

These Instruments are

www.hannainst.com

WARRANTYWARRANTY

WARRANTY

WARRANTYWARRANTY

HI 98127 and HI 98128 are warranted for one year against defects in workmanship and materials when used for their intended purpose and maintained according to instructions. The electrode is warranted for a period of six months. This warranty is limited to repair or replacement free of charge.

Damages due to accident, misuse, tampering or lack of prescribed maintenance are 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 Customer Service department and then send it with shipment costs prepaid. When shipping any instrument, make sure it is properly packaged for complete protection.

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

All rights are reserved. Reproduction in whole or in part is prohibited without the written consent of the copyright owner, Hanna Instruments Inc., Woonsocket, Rhode Island, 02895 , USA.

Hanna Instruments reserves the right to modify the design, construction and appearance of its products without advance notice.

in Compliance with

CE Directives

Dear Customer, Thank you for choosing a Hanna product. This manual will provide you with the necessary information for a correct operation. Please read it carefully before using the meter. If you need additional technical information, do not hesitate to e-mail us at tech@hannainst.com.

These instruments are in compliance with the directives.

PRELIMINARY EXAMINATIONPRELIMINARY EXAMINATION

PRELIMINARY EXAMINATION

PRELIMINARY EXAMINATIONPRELIMINARY EXAMINATION

Remove the instrument from the packing material and examine it carefully. If any damage has occurred during shipment, immediately notify your Dealer or the nearest Hanna Customer Service Center.

The meters are supplied with:

• 4 x 1.5V batteries

• HI 73127 pH electrode

• HI 73128 Tool to remove the pH electrode

Note: Conserve all packing material until the instru-

ment has been observed to function correctly. Any defective item must be returned in its original packing.

GENERAL DESCRIPTIONGENERAL DESCRIPTION

GENERAL DESCRIPTION

GENERAL DESCRIPTIONGENERAL DESCRIPTION

HI 98127 and HI 98128 are waterproof pH and temperature meters. The housing has been completely sealed against humidity and designed to float.

All pH readings are automatically temperature compensated (ATC), and temperature values can be displayed in °C or °F units.

The meters can be calibrated at one or two points with auto-buffer recognition and against five memorized buffer values.

Measurements are highly accurate with a unique stability indicator right on the LCD.

A low battery symbol warns the user when the batteries are to be replaced. In addition the Battery Error Prevention System (BEPS) avoids erroneous reading caused by low voltage level by turning the meter off.

The HI 73127 pH electrode, supplied with the meters, is interchangeable and can be easily replaced by the user.

The stainless steel encapsulated temperature sensor facilitates faster and more accurate temperature measurement and compensation.

FUNCTIONAL DESCRIPTIONFUNCTIONAL DESCRIPTION

FUNCTIONAL DESCRIPTION

FUNCTIONAL DESCRIPTIONFUNCTIONAL DESCRIPTION

1. Battery compartment

2. Liquid Crystal Display (LCD)

3. Stability indicator

4. Low battery indicator

5. ON/OFF/MODE button

6. HI 73127 pH electrode

7. Temperature sensor

8. SET/HOLD button

9. Secondary LCD

10. Primary LCD

CE DECLARATIONCE DECLARATION

CE DECLARATION

CE DECLARATIONCE DECLARATION

OF CONFORMITYOF CONFORMITY

OF CONFORMITY

OF CONFORMITYOF CONFORMITY

Recommendations for Users Before using this product, make sure that it is entirely suitable for the environment in which it is used. Operation of this instrument in residential areas could cause unacceptable interferences to radio and TV equipment. The glass bulb at the end of the 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 instrument’s EMC performance. To avoid electrical shock, do not use this instrument when voltages at the measurement surface exceed 24 VAC or 60 VDC. To avoid damages or burns, do not perform any measurement in microwave ovens.

ACCESSORIESACCESSORIES

ACCESSORIES

ACCESSORIESACCESSORIES

HI 73127 Replaceable pH electrode HI 73128 Tool to remove the pH electrode HI 70004P pH 4.01 solution, 20 mL sachet (25 pcs) HI 70006P pH 6.86 solution, 20 mL sachet (25 pcs) HI 70007P pH 7.01 solution, 20 mL sachet (25 pcs) HI 70009P pH 9.18 solution, 20 mL sachet (25 pcs) HI 70010P pH 10.01 solution, 20 mL sachet (25 pcs) HI 77400P pH 4 & 7 solutions, 20 mL sachet (5 each) HI 7004M pH 4.01 solution, 230 mL bottle HI 7006M pH 6.86 solution, 230 mL bottle HI 7007M pH 7.01 solution, 230 mL bottle HI 7009M pH 9.18 solution, 230 mL bottle HI 7010M pH 10.01 solution, 230 mL bottle HI 7061M Electrode cleaning solution, 230 mL bottle HI 70300M Electrode storage solution, 230 mL bottle

SPECIFICATIONSSPECIFICATIONS

SPECIFICATIONS

SPECIFICATIONSSPECIFICATIONS

RangeRange

Range HI 98127 0.0 - 14.0 pH

RangeRange

HI 98128 0.00 - 14.00 pH

Temperature 0.0-60.0°C or 32.0-140.0°F

ResolutionResolution

Resolution HI 98127 0.1 pH

ResolutionResolution

Accuracy Accuracy

(@20°C/68°F)(@20°C/68°F)

Accuracy

(@20°C/68°F) HI98127 ±0.1 pH

Accuracy Accuracy

(@20°C/68°F)(@20°C/68°F)

Typical Typical

EMC DeviationEMC Deviation

Typical

EMC Deviation pH ±0.02

Typical Typical

EMC DeviationEMC Deviation

Temp.Temp.

Compensation Compensation

Temp.

Compensation Automatic

Temp.Temp.

Compensation Compensation

EnvironmentEnvironment

Environment from 0 to 50°C (32 to 122°F); RH 100%

EnvironmentEnvironment CalibrationCalibration

Calibration 1 or 2 points with 2 sets of memorized

CalibrationCalibration

BatteryBattery

Type/Life Type/Life

Battery

Type/Life 4 x 1.5V with BEPS / typical 350 hours

BatteryBattery

Type/Life Type/Life

Auto-offAuto-off

Auto-off

Auto-offAuto-off DimensionsDimensions

Dimensions 163 x 40 x 26 mm (6.4 x 1.6 x 1.0”)

DimensionsDimensions WeightWeight

Weight 85 g (3.0 oz)

WeightWeight

OPERATIONAL GUIDEOPERATIONAL GUIDE

OPERATIONAL GUIDE

OPERATIONAL GUIDEOPERATIONAL GUIDE

ToTo

turnturn

thethe

ToTo

statusstatus

status

statusstatus Press and hold the

seconds. All the used segments on the LCD will be visible for a few seconds, followed by a percent indication of the remaining battery life. Eg. % 100 BATT.

Taking measurementsTaking measurements

Taking measurements

Taking measurementsTaking measurements Submerge the electrode in the solu-

tion to be tested while stirring it gently. The measurements should be taken when the stability symbol  on the top left of the LCD disappears.

The pH value automatically compensated for temperature is shown on the primary LCD while the secondary LCD shows the temperature of the sample.

ToTo

ToTo Press the SET/HOLD button for 2-3 seconds until

HOLD appears on the secondary display. Eg. pH 5.8 HOLD.

Press either button to return to normal mode.

ToTo

turnturn

turn

ToTo

turnturn

Press the measurement mode. OFF will appear on the lower part of the display. Release the button.

turn

the

turnturn

thethe

freezefreeze

thethe

freeze

freezefreeze

the

thethe

metermeter

the

meter

thethe

metermeter

ON/OFF/MODE button while in normal

HI 98128 0.01 pH Temperature 0.1°C or 0.1°F

HI98128 ±0.01 pH Temperature ±0.5°C or ±1°F

Temperature ±0.5°C or ±1°F

buffers (pH 4.01/7.01/10.01 or 4.01/

6.86/9.18)

After 8 min.

metermeter

onon

andand

toto

checkcheck

meter

and

metermeter

ON/OFF/MODE button for 2-3

displaydisplay

display

displaydisplay

offoff

off

offoff

onon

andand

toto

ISTR98127R2 10/01

check

checkcheck

batterybattery

battery

batterybattery

NotesNotes

Notes:

NotesNotes

• Before taking any measurement make sure the meter has been calibrated.

• If measurements are taken in different samples successively, rinse the electrode thoroughly to eliminate cross-contamination; and after cleaning, rinse the electrode with some of the sample to be measured.

• To change the temperature unit (from °C to °F), from measurement mode, press and hold the MODE button until TEMP and the current temperature unit are displayed on the lower LCD. Eg. TEMP °C.

Use the SET/HOLD button to change the temperature unit, and then press MODE button twice to return to normal measurement mode.

CALIBRATIONCALIBRATION

CALIBRATION

CALIBRATIONCALIBRATION

For better accuracy, frequent calibration of the instrument is recommended. In addition, the instrument must be recalibrated whenever:

a) The pH electrode is replaced. b) After testing aggressive chemicals. c) Where high accuracy is required. d) At least once a month.

Calibration buffer setCalibration buffer set

Calibration buffer set

Calibration buffer setCalibration buffer set

• From measurement mode, press and hold the MODE button until TEMP and the current temperature unit are displayed on the lower LCD. Eg. TEMP °C.

• Press the MODE button again to show the current buffer set: pH 7.01 BUFF (for 4.01/7.01/10.01 calibration) or pH 6.86 BUFF (for NIST 4.01/6.86/9.18 calibration).

• Press the SET/HOLD button to change the buffer value.

• Press the MODE button to return to normal measuring mode.

Calibration procedureCalibration procedure

Calibration procedure

Calibration procedureCalibration procedure From measurement mode, press and hold the MODE

button until CAL is displayed on the lower LCD. Release the button. The LCD will display pH 7.01 USE or pH 6.86 USE (if you have selected the NIST buffer set). The CAL tag blinks on the LCD.

• For a

single-point pH calibration, place the electrode in any buffer from the selected buffer set (eg. pH 7.01 or pH 4.01 or pH

10.01). The meter will recognize the buffer value automatically.

If using pH 4.01 or pH 10.01, the meter will display OK for 1 second and then return to measurement mode.

If using pH 7.01, after recognition of the buffer the meter will ask for pH 4.0 as second calibration point. Press the MODE button to return to measurement mode or, if desired, proceed with the 2-point calibration as explained below.

NoteNote

Note: It is always recommended to carry out a two-

NoteNote point calibration for better accuracy.

• For a

two-point pH calibration, place the electrode in pH 7.01 (or 6.86 if you have selected the NIST buffer set). The meter will recognize the buffer value and then display pH 4.01 USE.

Rinse the electrode thoroughly to eliminate crosscontamination.

Place the electrode in the second buffer value (pH

4.01 or 10.01, or, if using NIST, pH 4.01 or 9.18). When the second buffer is recognized, the LCD will display OK for 1 second and the meter will return to normal measurement mode.

The CAL symbol on the LCD means that the meter is calibrated.

To reset to the default calibrationTo reset to the default calibration

To reset to the default calibration

To reset to the default calibrationTo reset to the default calibration To clear a previous calibration, press the ON/OFF/

MODE button after entering the calibration mode. The lower LCD will display ESC for 1 second and the meter will return to normal measurement mode. The CAL symbol on the LCD will disappear. The meter will be reset to the default calibration.

H ELECTRODE MAINTENANCEH ELECTRODE MAINTENANCE

H ELECTRODE MAINTENANCE

H ELECTRODE MAINTENANCEH ELECTRODE MAINTENANCE

• When not in use, rinse the electrode with water to minimize contamination and store it with a few drops of storage (HI 70300) or pH 7 (HI 7007) solution in the protective cap after use. DO NOT USE DISTILLED OR DEIONIZED WATER FOR STORAGE PURPOSES.

• If the electrode has been left dry, soak in a storage or pH 7 solution for at least one hour to reactivate it.

• To prolong the life of the pH electrode, it is recommended to clean it monthly by immersing it in the HI 7061 cleaning solution for half an hour. Afterwards, rinse it thoroughly with tap water and recalibrate the meter.

• The pH electrode can be easily replaced by using the supplied tool (HI 73128). Insert the tool into the electrode cavity as shown below.

Remove the electrode by rotating it counterclockwise and then pulling it out.

Insert a new pH electrode following the above instructions in reverse order.

BATTERY REPLACEMENTBATTERY REPLACEMENT

BATTERY REPLACEMENT

BATTERY REPLACEMENTBATTERY REPLACEMENT

The meter displays the remaining battery percentage every time it is switched on. When the battery level is below 5%, the lights up to indicate a low battery condition. The batteries must be immediately replaced. If however the battery level is so low as to cause erroneous reading, the Battery Error Prevention System (BEPS) will automatically turn the meter off. To change the batteries, remove the 4 screws located on the top of the meter.

Once the top has been removed, carefully replace the 4 batteries located in the compartment while paying attention to their polarity.

Replace the top, making sure that the gasket is properly seated in place, and tighten the screws.

- +

symbol on the bottom left of the LCD