Hanna Instruments OHI 98140 Instruction Manual
Hanna Instruments OHI 98140 Instruction Manual

Hanna Instruments OHI 98140 Instruction Manual

Calibration check ph/mv/temperature meters

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99 Washington Street
Melrose, MA 02176
Phone 781-665-1400
Toll Free 1-800-517-8431
Visit us at www.TestEquipmentDepot.com
Instruction Manual
HI 98140 HI 98150
HI 98160

Calibration Check

pH/mV/Temperature
Meters
1

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Summary of Contents for Hanna Instruments OHI 98140

  • Page 1: Calibration Check

    99 Washington Street Melrose, MA 02176 Phone 781-665-1400 Toll Free 1-800-517-8431 Visit us at www.TestEquipmentDepot.com Instruction Manual HI 98140 HI 98150 HI 98160 Calibration Check pH/mV/Temperature Meters...
  • Page 2: Table Of Contents

    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. W A R R A N T Y W A R R A N T Y W A R R A N T Y...
  • Page 3: Preliminary Examination

    PRELIMINARY EXAMINATION PRELIMINARY EXAMINATION PRELIMINARY EXAMINATION PRELIMINARY EXAMINATION PRELIMINARY 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. Each instrument is supplied with: •...
  • Page 4 When the SMART electrode is attached to the meter again, it is automatically recognized. This technology allows the operator to optimize time and efficiency with unsurpassed safety. It avoids erroneous measurements taken in the event the pH electrode is substituted after calibration.
  • Page 5: Functional Description

    F U N C T I O N A L D E S C R I P T I O N F U N C T I O N A L D E S C R I P T I O N F U N C T I O N A L D E S C R I P T I O N F U N C T I O N A L D E S C R I P T I O N F U N C T I O N A L D E S C R I P T I O N...
  • Page 6 1) Liquid Crystal Display (LCD). 2) Range key, to select pH or mV range (HI 98150 & HI 98160 only). Setup key, to enter/exit SETUP mode. 3) On/Off key, to turn the instrument ON and OFF. 4) CAL key, to enter/exit calibration mode. GLP key, to display Good Laboratory Practice information.
  • Page 7: Specifications

    SPECIFICATIONS SPECIFICATIONS SPECIFICATIONS SPECIFICATIONS SPECIFICATIONS – 0 . 0 4 – 0 0 . 0 0 . ± 9 . 9 ± & 2 – 0 . 0 0 . 0 C º – ( 0 . 4 0 . 8 ) F º...
  • Page 8: Operational Guide

    OPERATIONAL GUIDE OPERATIONAL GUIDE OPERATIONAL GUIDE OPERATIONAL GUIDE OPERATIONAL GUIDE INITIAL PREPARATION The instrument is supplied complete with batteries. For placing the batteries inside the meter, see page 33. To prepare the instrument for use, connect the pH electrode to the input socket on the top of the instrument.
  • Page 9 The LCD will show the pH measurement together with the temperature of the sample. In order to take more accurate pH measurements, make sure that the electrode and instrument is calibrated (see page 11 for details). Hanna recommends to keep the pH electrode wet and to rinse throughly with the sample before measurements.
  • Page 10 Submerse the ORP electrode tip (3cm/1¼”) into the sample to be tested and wait a few seconds for the reading to stabilize. Measurements within the ±699.9 mV range are displayed with 0.1 mV resolution, while outside this range the resolution automatically switches to 1 mV.
  • Page 11: Ph Calibration

    p p p p p H CALIBRATION H CALIBRATION H CALIBRATION H CALIBRATION H CALIBRATION Hanna recommends frequent calibrations, especially if high accuracy is required. The pH range should be recalibrated: • Whenever the pH electrode is replaced. • At least once a week, but daily is recommended. •...
  • Page 12 • 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” tag blinks.
  • Page 13 • The calibrated value is then displayed on the primary LCD and the secondary LCD will display the fifth expected buffer value. • After the fourth calibration point is confirmed, submerse the pH electrode and the temperature probe approximately 3 cm (1¼”) into the fifth buffer solution and stir gently.
  • Page 14 • If “WRONG” tag and “OLd” message are displayed on the secondary LCD, an inconsistency exists between new and previous (old) calibration data. Clear old calibration parameters and proceed with calibration from the current calibration point. The instrument will keep all confirmed values during current calibration.
  • Page 15 CLEAR CALIBRATION To clear calibration press 2nd then CLR or CLR alone after entering CAL mode. The “CLr ALL” message will be displayed on the LCD along with “Cal Due” CLR message blinking. All old calibrations, starting with current selected buffer are cleared and the instrument continues calibration.
  • Page 16: Ph Buffer Temperature Dependence

    p p p p p H BUFFER TEMPERATURE H BUFFER TEMPERATURE H BUFFER TEMPERATURE H BUFFER TEMPERATURE H BUFFER TEMPERATURE D E P E N D E N C E D E P E N D E N C E D E P E N D E N C E D E P E N D E N C E D E P E N D E N C E...
  • Page 17: Relative Mv Calibration (Hi 98150 & Hi 98160)

    However, temperature correction during pH measurements provides values at the temperature of measurement. Actual pH values may differ if measured at two different temperatures. RELATIVE RELATIVE RELATIVE m m m m m V CALIBRATION V CALIBRATION V CALIBRATION V CALIBRATION RELATIVE RELATIVE V CALIBRATION...
  • Page 18: Good Laboratory Practice (Glp)

    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 or Rel mV calibration is stored for the user to review when necessary.
  • Page 19 Press the ARROW keys to view the next calibration parameter (pressing the key): • The pH calibration slope and offset. The GLP slope is the average of the calibration slopes; the percentage is referred to the ideal slope value. For example 59.16 mV/pH at 25 °C. •...
  • Page 20 Notes: • The “OLd” message displayed beside the pH value means that this buffer was not used during last calibration. Press 2nd then Setup if you want to see calibration date (or time, if old calibration was performed in the same day with current calibration).
  • Page 21: Setup

    S E T U P S E T U P S E T U P S E T U P S E T U P Setup mode allows viewing and configuring the following parameters: • Calibration Alarm Time Out (pH range only)(dAY) •...
  • Page 22 d i l v e r t a i n o i s e o a f e t l u l a V s e u e s U s i h t r a p e t e o t r n i t r e t...
  • Page 23: Logging

    Note: The custom buffers can be set only with 0.01 pH resolution, at 25 ºC. Press Range (HI 98150 & HI 98160) or 2nd and Mode (HI 98140) repeatedly while in custom buffer setting mode until the closest buffer value to the desired custom buffer to be set is displayed on the LCD.
  • Page 24 VIEW LOGGED DATA Press 2nd then RCL to retrieve the information stored while in measurement mode for the specific range. “RECALL MEMORY” will be displayed on LCD. If no records were logged, the instrument will display “no rEC” message blinking. Otherwise, the instrument will display the logged data, in according with the selected range:...
  • Page 25: Autoend

    • Press the ARROW keys to change the record number. • Press CAL or Range or CLR to escape from DEL screen and enter view record items mode. Note: Pressing 2nd then Setup the instrument toggles between record number and all records. •...
  • Page 26: Temperature Calibration (For Technical Personnel Only)

    TEMPERATURE CALIBRATION TEMPERATURE CALIBRATION TEMPERATURE CALIBRATION TEMPERATURE CALIBRATION TEMPERATURE CALIBRATION (for technical personnel only) All the instruments are factory calibrated for temperature. Hanna’s temperature probes are interchangeable and no temperature calibration is needed when they are replaced. If the temperature measurements are inaccurate, temperature recalibration should be performed.
  • Page 27: Mv Calibration (Hi 98160 Only) (For Technical Personnel Only)

    • Press CFM to confirm. The instrument returns to measurement mode. Note: If the reading is not close to the selected calibration point, “WRONG” tag will blink. Change the temperature probe and restart calibration. m m m m m V CALIBRATION V CALIBRATION V CALIBRATION V CALIBRATION (HI 98160 only)
  • Page 28: Pc Interface

    PC INTERFACE PC INTERFACE PC INTERFACE PC INTERFACE PC INTERFACE 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 an on-line help feature. Data can be exported to the most popular spreadsheet programs for further analysis.
  • Page 29 CHR xx Change the instrument range according with the parameter value (xx): • xx=01 pH range/0.01 resolution • xx=02 pH range/0.1 resolution • xx=03 mV range • xx=04 Relative mV range The instrument will answer for these commands with: <STX> <answer > <ETX> where: <STX>...
  • Page 30 • Reading status (2 chars): R - in range, O - over range, U - under range. First character corresponds to the appropriate range reading. Second character corresponds to mV reading. • Primary reading (corresponding to the selected range) - 7 ASCII chars, including sign and decimal point. •...
  • Page 31 • Rel mV calibration data (if available), which contains: • the calibration offset, with sign (7 chars) • the calibration time, yymmddhhmmss (12 chars). Requests the setup parameters setting. The answer string contains: • Instrument ID (4 chars) • Calibration alarm time out (2 chars) •...
  • Page 32 • The mV reading, with sign and decimal point (7 chars) - only for HI 98150 and HI 98160 • The logged time, yymmddhhmmss (12 chars) • The calibration offset, with sign and decimal point (7 chars) - not available for ISE •...
  • Page 33: Batteries Replacement

    BATTERIES REPLACEMENT BATTERIES REPLACEMENT BATTERIES REPLACEMENT BATTERIES REPLACEMENT BATTERIES REPLACEMENT If the batteries become weak, the display will flash the battery symbol to advise the user that approx. 1 hour of working time is left. It is recommended to replace the batteries soon. To replace the batteries, follow the next steps: •...
  • Page 34: Lcd Message Guide

    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. At start up the display will show “0 bAtt” message for a few seconds, then the instrument automatically turns off.
  • Page 35 • Main active key messages light up for indicating the corresponding active key. CAL on: CAL key available. CFM blinking: ask confirmation of calibration or set value. SETUP on: SETUP key available. GLP on: GLP key available. RANGE on: RANGE key available. LOG on: LOG key available.
  • Page 36: Temperature Correlation For Ph Sensitive Glass

    TEMPERATURE CORRELATION TEMPERATURE CORRELATION TEMPERATURE CORRELATION TEMPERATURE CORRELATION TEMPERATURE CORRELATION FOR p p p p p H SENSITIVE GLASS H SENSITIVE GLASS H SENSITIVE GLASS H SENSITIVE GLASS H SENSITIVE GLASS The temperature limit for the HI 1230B and HI 1618D is from 0 to 80 °C with optimum measurements between 20 and 40 °C.
  • Page 37: Electrode Conditioning & Maintenance

    E L E C T R O D E C O N D I T I O N I N G E L E C T R O D E C O N D I T I O N I N G E L E C T R O D E C O N D I T I O N I N G E L E C T R O D E C O N D I T I O N I N G E L E C T R O D E C O N D I T I O N I N G...
  • Page 38 MEASUREMENT Verify if electrode is calibrated before making measurements. Rinse the pH electrode tip with distilled water. Submerse the tip (bottom 3 cm /1¼”) 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.
  • Page 39 pH CLEANING PROCEDURE • General Soak in Hanna HI 7061 or HI 8061 General Cleaning Solution for approximately ½ hour. • Protein Soak in Hanna HI 7073 or HI 8073 Protein Cleaning Solution for 15 minutes. • Inorganic Soak in Hanna HI 7074 Inorganic Cleaning Solution for 15 minutes.
  • Page 40: Troubleshooting Guide

    T R O U B L E S H O O T I N G G U I D E T R O U B L E S H O O T I N G G U I D E T R O U B L E S H O O T I N G G U I D E T R O U B L E S H O O T I N G G U I D E T R O U B L E S H O O T I N G G U I D E...
  • Page 41: Accessories

    A C C E S S O R I E S A C C E S S O R I E S A C C E S S O R I E S A C C E S S O R I E S A C C E S S O R I E S pH CALIBRATION SOLUTIONS HI 50004-01 pH 4.01 Buffer Solution, 20 mL sachet, 10 pcs...
  • Page 42 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...
  • Page 43 HI 1131B Glass-body, single junction, refillable, combination pH electrode. Use: general purpose. 9.5mm DIA 12 mm 0.37" 0.5" HI 1131 120 mm 4.7" "S" VERSION HI 1330B Glass-body, semimicro, single junction, refillable, combination pH electrode. Use: laboratory, vials. 5mm DIA 0.2"...
  • Page 44 HI 1332B Plastic-body (PES), double junction, refillable, combination pH electrode. Use: general purpose. 12 mm 0.5" HI 1332 120 mm "S" VERSION 4.7" FC 100B Plastic-body (PVDF), double junction, refillable, combination pH electrode. Use: general purpose for food industry. 12 mm 0.5"...
  • Page 45 FC 911B Plastic-body (PVDF), double junction, refillable with built-in amplifier, combination pH electrode. Use: very high humidity. 12 mm 0.5" FC 911 110 mm 4.3" HI 1413B Glass-body, single junction, flat tip, Viscolene, non-refillable, combination pH electrode. Use: surface measurement. 12 mm 0.5"...
  • Page 46 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 HI 7855 SERIES CABLE CONNECTORS CONNECTOR AND 3.0 mm (0.12") CABLE WITH BNC CONNECT TO THE CONNECT TO BNC SOCKET SCREW TYPE...
  • Page 47 HI 92000 Windows compatible software. ® HI 76405 Electrode holder 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.

This manual is also suitable for:

Hi 98150Hi 98140Hi 98160

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