Hanna Instruments HI 98190 Instruction Manual
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Hanna Instruments HI 98190 Instruction Manual

Hanna Instruments HI 98190 Instruction Manual

Calibration check waterproof ph/mv/ise/temperature meters
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Instruction Manual
HI 98190
HI 98191
Calibration Check
Waterproof
pH/mV/ISE/Temperature
Meters
w w w. h a n n a i n s t . c o m
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Summary of Contents for Hanna Instruments HI 98190

  • Page 1 Instruction Manual HI 98190 HI 98191 Calibration Check Waterproof pH/mV/ISE/Temperature Meters w w w. h a n n a i n s t . c o m...

  • Page 2: Table Of Contents

    WARRANTY The HI 98190 and HI 98191 are guaranteed for two years against defects in workmanship and materials when used for their intended purpose and maintained according to instructions. Electrodes and probes are guaranteed for six months. This warranty is limited to repair or replacement free of charge.

  • Page 3: Preliminary Examination

    If there is any damage, notify your Dealer or the nearest Hanna Customer Service Center. Each instrument is supplied with: • HI 12963 Amplified Combined pH temperature electrode (HI 98190) • HI 72911B Combined pH temperature electrode (HI 98191) • HI 7662 Temperature Probe (HI 98191) •...

  • Page 4: General Description

    Other features include: • Relative mV measurements • Log on demand up to 300 samples for HI 98191 and 200 samples for HI 98190 (100 samples on each range - pH, mV, ISE only HI 98191) • Auto Hold feature, to freeze first stable reading on the LCD •...

  • Page 5: Functional Description

    9) RCL key, to enter/exit view logged data mode. 10) MODE key, to change pH resolution or to toggle between mV and Rel mV mode. 11) RANGE key, to switch between pH and mV range (HI 98190) or pH, mV and ISE range (HI 98191).
  • Page 6 TOP VIEW HI 98190 14) Electrode DIN connector. 15) USB connector. TOP VIEW HI 98191 14) BNC electrode connector. 15) Input for Reference electrode. 16) Input for Temperature probe. 17) USB Connector.

  • Page 7: Hi 98190 Specifications

    HI 98190 SPECIFICATIONS e g n . 2 - 0 . 0 0 . 2 0 . 0 0 0 . 0 . 0 o s e t u l n o i 0 . 0 0 . 0 r u c y c a ±...

  • Page 8: Hi 98191 Specifications

    HI 98191 SPECIFICATIONS e g n . 2 - 0 . 0 0 . 2 0 . 0 0 0 . 0 . 0 o s e t u l n o i 0 . 0 0 . 0 r u c y c a ±...

  • Page 9: Operational Guide

    If the probe is disconnected, temperature can be set manually with the ARROW keys. For HI 98190 connect the pH/temperature electrode to the DIN connector. Turn the instrument ON by pressing ON/OFF key.
  • Page 10 • pH reading with the selected resolution. • Temperature reading in the selected unit (°C or °F). • Temperature compensation mode (MTC - manual, ATC - automatic). While in MTC mode the indicate that the temperature can be manually changed using ARROW keys. •...
  • Page 11 ORP MEASUREMENTS To perform ORP measurements, connect an optional ORP electrode (see “Accessories“ section) to the instrument and turn it ON. Press RANGE key until mV range is displayed, if necessary. Submerge the ORP electrode tip (4 cm/1 ”) into the sample to be tested and wait a few seconds for the reading to stabilize.
  • Page 12 • Changing the ISE electrode or the ion charge will need ISE range calibration. TEMPERATURE MEASUREMENTS For HI 98190 the temperature sensor is connected through DIN socket. Connect the temperature connector to the appropriate socket (HI 98191). Immerse the pH electrode into the sample and allow the reading on the secondary LCD to stabilize.

  • Page 13: Ph Calibration

    SETUP). PROCEDURE HI 98190 and HI 98191 instruments offers a choice of seven standard buffers (1.68, 4.01, 6.86, 7.01, 9.18, 10.01 and 12.45 pH). The meters allow the user to set up to five custom buffers. The set custom buffers are the buffer values at 25 °C.
  • Page 14 • 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. •...
  • Page 15 • 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 (1 ”) into the third buffer solution and stir gently. The temperature probe should be close to the pH electrode.
  • Page 16 • When the reading is stable and within range of the selected buffer, the CFM functional key is displayed. • Press CFM to confirm calibration. • The calibrated value and the fifth expected buffer will be displayed. • After the fourth calibration point is confirmed, immerse the pH electrode and the temperature probe approximately 4 cm (1 ”) into the fifth buffer solution and stir gently.
  • Page 17 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.
  • Page 18 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 58). Check the quality of the buffer. If necessary, change the buffer.
  • Page 19 If the 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 which buffer will be replaced by current buffer.
  • Page 20 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.
  • Page 21 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 &...

  • Page 22: Ph Buffer Temperature Dependence

    pH BUFFER TEMPERATURE DEPENDENCE 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. C º...

  • Page 23: Relative Mv Calibration

    RELATIVE mV CALIBRATION • 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. •...

  • Page 24: Ise Calibration Hi 98191

    ISE CALIBRATION HI 98191 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. •...
  • Page 25 • 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. •...
  • Page 26 • 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 ”) into the fourth calibration solution. • If necessary, press the ARROW keys to select a different standard value. •...
  • Page 27 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 An inconsistency between new and previous (old) calibration is detected. Clear old calibration parameters and proceed calibration from the current point.

  • Page 28: 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.
  • Page 29 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.

  • Page 30: Setup

    SETUP 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. Description Valid value Default Backlight...
  • Page 31 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 Replace or offset Replace mode (pH) 1 point calibration Custom buffer...
  • Page 32 GENERAL PARAMETER SCREENS Backlight Highlight Backlight . Press Modify. Use / keys to change the intensity then press Accept to confirm. Press ESC to leave without changing. Contrast Highlight Contrast . Press Modify. Use / keys to change contrast then press Accept to confirm. Press ESC to leave without changing.
  • Page 33 Auto Light Off Highlight Auto Light Off . Press 5, 10 or 30 to change settings. Auto Power Off Highlight Auto Power Off . Press Modify. Press ARROW keys to select interval then press Accept. Press ESC to leave without changing. Date/Time Highlight Date/Time .
  • Page 34 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 Highlight Time Format . Press functional key to change the option. Date Format Highlight Date Format .
  • Page 35 Language Highlight Language . 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.
  • Page 36 Instrument ID Highlight Instrument ID . Press Modify. Use ARROW keys to change the instrument ID. Press Accept to confirm or ESC to exit without saving. Baud Rate Highlight Baud Rate . Press Modify. Use ARROW keys to select the desired communication baud. Press Accept to confirm or ESC to exit.
  • Page 37 Meter information Highlight Meter Information . 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 Highlight Calibration Timeout . Press Modify. Use ARROW keys to set desired value. Press Accept to confirm or ESC to return without saving.
  • Page 38 Note: If enabled “CAL DUE” warning will be displayed, the set number of days after calibration is over passed. First Point Mode Highlight First Point Mode . Press the displayed functional key in order to change the option. First point mode refers to the behavior 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.
  • Page 39 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 Highlight View Calibration Points . 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.
  • Page 40 ISE probe Highlight ISE probe . 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 highlight the parameter to be changed (“Change Slope” or “Molar Weight”). Highlight Change Slope .
  • Page 41 Highlight 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 highlight the desired electrode. Press Accept to confirm setting or ESC to exit. Press View to see probe parameters.
  • Page 42 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. •...

  • Page 43: Logging

    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 port using HI 92000 application. The maximum logging space is 300 for HI 98191 and 200 for HI 98190 record locations (100 records on each range).

  • Page 44: Autoend

    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 instrument asks for confirmation. Press CFM to confirm or ESC to exit without deleting.

  • Page 45: Mv And Temperature Calibration (For Technical Personnel Only)

    mV AND 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.
  • Page 46 • 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 ther- mometer. Allow a few seconds for the probe to stabilize. •...
  • Page 47 • Set 1800.0 mV on the simulator. • When the reading is stable and within range of 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: •...

  • Page 48: Pc Interface

    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.
  • Page 49 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 •...
  • Page 50 • 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 •...
  • Page 51 • 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) •...
  • Page 52 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 xxx pH record logged data. LODMxxx Requests the xxx mV/Rel mV record logged data.

  • Page 53: Batteries Replacement

    BATTERIES REPLACEMENT To replace the batteries, follow the next steps: • Turn OFF the instrument. • Open the battery compartment by removing the four screws from the back of the instrument. • Remove the old batteries. • Insert four new 1.5V AA batteries in the battery compartment while paying attention to the correct polarity.

  • Page 54: Temperature Correlation For Ph Sensitive Glass

    TEMPERATURE CORRELATION FOR pH SENSITIVE GLASS 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 °C (77 °F). Since the resistance of the pH electrode is in the range of 50 –...

  • Page 55: Electrode Conditioning And Maintenance

    ELECTRODE CONDITIONING AND 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.
  • Page 56 For faster response, unscrew the fill hole screw during measurements. ® For AmpHel 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 /1 ”...

  • Page 57: Troubleshooting Guide

    TROUBLESHOOTING GUIDE o l S p s e s n o e / e e c x v i s s . t f i r y t r i e l e o r t c . e d k a o e h t c e l e...

  • Page 58: Accessories

    ACCESSORIES pH CALIBRATION SOLUTIONS HI 50004-01pH 4.01 Buffer Solution, 20 mL sachet, 10 pcs. HI 50004-02pH 4.01 Buffer Solution, 20 mL sachet, 25 pcs. HI 50007-01pH 7.01 Buffer Solution, 20 mL sachet, 10 pcs. HI 50007-02pH 7.01 Buffer Solution, 20 mL sachet, 25 pcs. HI 50010-01pH 10.01 Buffer Solution, 20 mL sachet, 10 pcs.
  • Page 59 HI 8072 1M KNO 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...
  • Page 60 HI 1131B Glass body, double 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 2031B Glass body, semimicro, conic, refillable, combination pH electrode.
  • Page 61 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.
  • Page 62 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.
  • Page 63 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 or appearance of its products without advance notice.
  • Page 64 Hanna Instruments Inc. Highland Industrial Park 584 Park East Drive Woonsocket, RI 02895 USA Technical Support for Customers Tel. (800) 426 6287 Fax (401) 765 7575 E-mail tech@hannainst.com www.hannainst.com Local Sales and Customer Service Office Printed in ROMANIA MAN98191 11/14...

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