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Hanna Instruments HI98197 Instruction Manual
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Hanna Instruments HI98197 Instruction Manual

Hanna Instruments HI98197 Instruction Manual

Usp compliant ec, resistivity, temperature meter for ultrapure water
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HI98197
USP Compliant
EC, Resistivity, Temperature Meter
for Ultrapure Water

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Summary of Contents for Hanna Instruments HI98197

  • Page 1 HI98197 USP Compliant EC, Resistivity, Temperature Meter for Ultrapure Water...
  • Page 2 Hanna Instruments representative near you at www.hannainst.com. 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.

  • Page 3: Table Of Contents

    PRELIMINARY EXAMINATION .................... GENERAL DESCRIPTION ....................FUNCTIONAL DESCRIPTION ....................SPECIFICATIONS ......................OPERATIONAL GUIDE ....................... AUTORANGING ........................ TEMPERATURE COMPENSATION ..................CONDUCTIVITY VERSUS TEMPERATURE CHART..............USP MEASUREMENT ......................USP MODE PROCEDURES ....................USER CALIBRATION ......................EC CALIBRATION ......................GOOD LABORATORY PRACTICE (GLP) .................. SETUP ..........................
  • Page 4 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, please contact your local Hanna Instruments Office. Each instrument is supplied with: • HI763123 Platinum four-ring Conductivity/TDS probe with internal temperature sensor and 1 m (3.3’) cable...
  • Page 5 HI98197 instrument is state-of-the-art, heavy-duty conductivity meter, designed to provide laboratory results and accuracy under harsh industrial conditions. The USP standard compliance makes the instrument useful for ultrapure water determination. It is provided with a series of new diagnostic features which add an entirely new dimension to the measure- ment of conductivity, by allowing the user to dramatically improve the reliability of the measurement: •...
  • Page 6 FRONT VIEW 1) Liquid Crystal Display (LCD). 2) F1, F2, F3 functional keys. / keys to manually increase/decrease the parameters or to scroll between the parameter list. 4) ON/OFF ( ) key, to turn the instrument ON and OFF. 5) LIGHT ( ) key to toggle display backlighting. 6) GLP key, to display Good Laboratory Practice information.
  • Page 7 HI763123-four-ring Conductivity/TDS probe with internal temperature sensor and 1m (3.3’) cable. HI605453 - Stainless Steel Body for HI763123 HI98197 uses the HI763123 platinum four-ring conductivity/resistivity probe for the measurement of very low conductivity solutions. The HI763123 is capable of measuring the conductivity/resistivity of high purity water (18.2 MΩ⋅cm @ 25°C).
  • Page 8 • Perform two-point calibration. The first calibration point is done in air (probe inserted in flow cell without any solution). The air calibration is at 0.001 µS/cm. Once the probe is calibrated to 0.001 µS/cm then a second point is calibrated. It is recommend calibrating the second point with HI7033 (84 µS/cm) calibration standard.

  • Page 9: Autoranging

    0 to 400 mS/cm (shows values up to 1000 mS/cm) Actual conductivity 1000 mS/cm 0.000 to 9.999 µS/cm Range 10.00 to 99.99 µS/cm 100.0 to 999.9 µS/cm 1.000 to 9.999 mS/cm 10.00 to 99.99 mS/cm 100.0 to 1000.0 mS/cm (autoranging) Resolution 0.001 µS/cm / 0.01 µS/cm / 0.1 µS/cm 0.001 mS/cm / 0.01 mS/cm / 0.1 mS/cm...

  • Page 10: Temperature Compensation

    % NaCl: 0.0 to 400.0 % Range Seawater scale: 0.00 to 80.00 (ppt) Practical salinity: 0.01 to 42.00 (PSU) Salinity Resolution 0.1 % / 0.01 ppt / 0.01 PSU Accuracy ±1% of reading Range -20.0 to 120.0 °C (-4.0 to 248.0 °F) Temperature Resolution 0.1 °C (0.1 °F)
  • Page 11 Turn the instrument ON by pressing ON/OFF key. At start-up the display will show the Hanna Instruments logo for a few seconds followed by the percentage indication of the remaining battery life and the “Loading Log...” message, then enters...
  • Page 12 The Auto Power 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 37. The instrument continues to monitor the inputs and memorize readings if the automatic logging is enabled and started.
  • Page 13 Resistivity range The reciprocal of the conductivity of a material is the resistivity. TDS range A conductivity measured value can be corrected to a total dissolved solids value using the TDS factor. Salinity The salinity is derived from the conductivity of a sample. Salt % range The percent of salinity in a sample is dependent on the sample and the salinity coefficient.
  • Page 14 S=-0.08996+28.2929729R+12.80832R –10.67869R +5.98624R –1.32311R where: - coefficient; (sample) - uncompensated conductivity at T °C; C(35;15)= 42.914 mS/cm - the corresponding conductivity of KCl solution containing a mass of 32.4356 g KCl / 1 Kg solution; - temperature compensation polynom. Note: The formula can be applied for temperatures between 10 °C and 31 °C. To access this range press Mode while in Salinity range until the seawater scale [SW] is displayed.

  • Page 15: Setup

    - coefficient; (sample) - uncompensated conductivity at T °C; C(35,15)= 42.914 mS/cm - the corresponding conductivity of KCl solution containing a mass of 32.4356 g KCl /1 Kg solution; - temperature compensation polynom = 0.008 =0.0005 = -0.1692 = -0.0056 = 25.3851 = -0.0066 = 14.0941...
  • Page 16 The probes designed to work with this instrument have an internal ID identification. Every time the instrument detects probe changing, it reminds the user to update the cell constant of the new probe being used and to calibrate in the appropriate EC range. The EC, Resistivity and TDS scales are autoranging.
  • Page 17 Two selectable temparature sources are available: reading directly from the sensor inside the probe or manual entry. Three options of compensating temperature are available: Linear Temperature Compensation: The conductivity of a solution with a specific electrolyte concentration changes with temperature. The relationship of the change in conductivity as a function of temperature is described by a solution’s temperature coefficient.
  • Page 18 Both parameters are temperature dependent. The dependency of conductivity on temperature is expressed as a relative change per Celsius degree at a particular temperature, commonly as percent per °C (%/°C). The following table lists the temperature dependence of the Hanna Instruments calibration buffers. HI7030 HI7031...
  • Page 19 Pharmaceutical laboratories working in the US market are obliged to respect the regulations set down by the US Pharmacopoeia (USP). The 5 supplement of USP24-NF19 lays down the rules for checking the quality of pure or fully deionized water used for the production of injection products. The conductivity of water provides information on its chemical composition.
  • Page 20 • Using the Stage 1 temperature and conductivity requirement table the corresponding conductivity limit at that temperature is determined. • If the measured conductivity is not greater than the table value the water meets the requirements of the test for conductivity. If the conductivity is higher than the table value, proceed with Stage 2. Stage 1 table Temperature and conductivity requirements * (for the non-temperature compensated conductivity measurements only)
  • Page 21 Stage 3 Determine the combined effect of the CO and pH. Use a Hanna Instruments pH meter. Take care that the instrument is calibrated in at least two points using pH 4.01 and pH 7.01 Hanna Instruments buffers. Perform the following test within approximately 5 minutes of the conductivity determination while maintaining the sample temperature at 25±1 °C.
  • Page 22 Stage 3 pH and conductivity requirements (For atmosphere and temperature equilibrated samples only) Conductivity µS/cm...
  • Page 23 Press Mode key while in EC range to enter USP mode. The instrument will display USP on the main screen. Press Stage 1 to start with first stage evaluation. Press Stage 2 to start with second stage evaluation. If Stage 1 is pressed a tutorial screen is displayed. Use the / keys to scroll the tutorial message.
  • Page 24 Press Log to store USP Stage 1 report. The report number and the amount of free log space in % is displayed for several seconds. Note: If the log space is full enter view logged data mode by pressing RCL key and free log space by deleting previously stored records.
  • Page 25 Wait until the reading is stable (about 5 minutes). Note: If the input record has an instability higher than 1 mS, stability period will be reset. The completion time bar will remain empty. The “USP Met” message will be displayed if the USP Stage 2 criteria is reached. Press Report to view the USP report.
  • Page 26 Press Log to store report. Press Stage 3 to enter in Stage 3 water analysis. The USP Stage 3 tutorial is displayed. Press Continue to enter USP Stage 3 analysis. The instrument will display the sample pH setting mode. Use a calibrated pH meter to read the pH value of the sample. / keys to set the value to that displayed on the pH meter.
  • Page 27 To enter User Calibration screen press CAL key while in EC or Salinity range. From EC range Press the corresponding functional key to enter: • EC user calibration. • Probe replatinization. • Temperature user calibration. From Salinity % range Press the corresponding functional key to enter: •...
  • Page 28 Note: TDS and Resistivity readings are automatically derived from the EC reading and no specific calibration is needed. PROCEDURE HI98197 instrument offers a choice of 7 memorized standards (0.00 µS/cm, 84.0 µS/cm, 1.413 mS/cm, 5.00 mS/cm, 12.88 mS/cm, 80.0 mS/cm and 111.8 mS/cm).
  • Page 29 • If necessary, press the / 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 within range of the selected buffer, CFM functional key is displayed. •...
  • Page 30 • 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 EC electrode into the third standard solution and stir gently. Tap the probe repeatedly to remove any air bubbles that may be trapped inside the sleeve.
  • Page 31 • After the third calibration point is confirmed, immerse the EC electrode into the fourth standard solution and stir gently. Tap the probe repeatedly to remove any air bubbles that may be trapped inside the sleeve. • The instrument will automatically detect the standard value. •...
  • Page 32 • If necessary, press / the 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 within range of the selected standard, the CFM functional key is displayed.
  • Page 33 REPLACE CALIBRATION STANDARD Each time a standard is confirmed the new calibration parameters replace the old calibration parameters of the corresponding standard. If the current standard has no correspondence in the existing stored calibration structure and this is not full, the current standard is added to the existing stored calibration (up to 5 standards). 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 standard.
  • Page 34 • Press CFM to confirm calibration. • The instrument returns to measurement mode. Notes: If the uncalibrated reading is too far from the expected value, calibration is not recognized. The “Wrong” message will be displayed. The meter uses 1.90 %/°C temperature compensation factor during calibration. If the “Tem- perature Coef”...
  • Page 35 GLP is a set of functions that allows storage and retrieval of data regarding the maintenance and status of the electrode. All data regarding EC and NaCl 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 EC/NaCl calibration.
  • Page 36 Use the / keys to select the offset or calibration standards, in order to view new information. To see more information press More. • More information regarding offset. • More information regarding standards. Notes: Standards displayed in video inverse mode are from previous calibrations. “No user calibration”...

  • Page 37: Log On Demand

    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 Select profile Add/View or select a profile...
  • Page 38 The following table lists the specific range parameters: Item Description Valid value Default Calibration Number of days after Disable, 1 to 7 days Disable Timeout calibration warning is (EC, NaCl) displayed Out cal range Display warning if the Enable/Disable Disable check reading is too far from the (EC range only)
  • Page 39 GENERAL PARAMETER SCREENS Select Profile Highlight Select Profile. Press Select. The list with stored profiles is displayed. Press Add to add a new profile to the list (max 10). Use the / keys to highlight the desired profile. Press Select to select the profile and exit to SETUP. Press View to view profile information.
  • Page 40 Press Delete to delete selected profile. The Delete key is displayed only if more than one profile is in the list. Press Accept to confirm the deletion or Cancel to cancel and return to the previous screen. Press ESC to return to profile list screen. Logging Interval Highlight Logging interval.
  • Page 41 Contrast Highlight Contrast. Press Modify. keys to change contrast then press Accept to confirm. Press ESC to leave without changing. Auto Light Off Highlight Auto Light Off. Press 5, 10 or Disabled to change settings. Press one of the functional keys to change the option. Auto Power Off Highlight Auto Power Off.
  • Page 42 Press / keys to select internal interval then press Accept. Press ESC to leave without changing. Date/Time Highlight Date/Time. Press Modify. keys to select item. Use / keys to change focused values. Press Accept to confirm new setting, or ESC to leave without changing. Time Format Highlight Time Format.
  • Page 43 Language Highlight Language. Use the desired functional key to change the option. Wait until new language is loaded. If any language can be loaded, the instrument will work in safe mode. In this mode all messages are displayed in English and Help is not available. Beep On Highlight Beep On.
  • Page 44 Baud Rate Highlight Baud Rate. Press Modify. Use / keys to select the desired communication baud. Press Accept to confirm or ESC to exit. Meter information Highlight Meter Information. Press Select. The meter information is displayed: -Firmware version -Language version -mV and temperature factory calibration time/date -Battery capacity...
  • Page 45 RANGE SPECIFIC PARAMETERS Calibration Timeout Highlight Calibration Timeout. Press Modify. Use / 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.
  • Page 46 Temperature Source Highlight Temperature Source. Press the displayed functional key in order to change the option. Select Probe in order to take the temperature automatically with the temperature sensor inside the electrode. Select Manual in order to set the temperature using the / keys. Temperature Compensation Highlight T.
  • Page 47 Press Modify to select ranging mode. Use the / keys to change selection. Press Accept to confirm or ESC to exit without saving. If Automatic is selected the instrument changes the range automatically according with the input. If one of the range is selected all the readings are displayed on the corresponding range. The readings will be displayed with maximum 6 digits.
  • Page 48 Temperature Coefficient Highlight Temperature Coef.. Press Modify in order to set the temperature coefficient. Use the / keys to change the value. Press Accept to confirm or ESC to exit without changing. Temperature Reference Highlight Temperature Ref [°C]. Press the corresponding functional key to select the desired reference temperature. Temperature Unit Highlight Temperature Unit.
  • Page 49 This feature allows the user to log up to 400 readings. All logged data can be transferred to a PC through the USB port using HI92000 application. LOGGING THE CURRENT DATA To store the current reading into memory, press LOG while in measurement mode. The instrument will display the record number and the amount of free log space for several seconds after the LOG option is selected.
  • Page 50 VIEW LOG ON DEMAND DATA Press RCL to enter View Logged Data mode. Press Man.Log to enter the log on demand range selection. / keys to highlight the desired range then press View. The list of records corresponding to the selected range is displayed. If no data were logged on the current range, the instrument will display “No Records”message.
  • Page 51 Use Pg Up or Pg Down keys to toggle the complete information screens. keys to scroll between stored records. If Delete is pressed: key to select 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 52 Use / keys to select the desired record. Press Delete to enter delete one record mode. Press Delete All to enter delete all mode. Press More to view the complete record information. Press Pg Down or Pg Up to scroll the record screens.

  • Page 53: Autolog

    This feature allows the user to log up to 1000 readings. All logged data can be transferred to PC through USB port. The memory space is organized in lots of records. A lot can contain from 1 to 1000 records. The maximum available lots number is 100.
  • Page 54 Press AutoLog to enter the automatic log range selection. Use / keys to highlight the desired range, then press View. The list of lots corresponding to the selected range is displayed. If no data were logged on the current range, the instruments will display “No Records”. / keys to scroll the lot list.
  • Page 55 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.

  • Page 56: Temperature Calibration (For Technical Personnel Only)

    If the temperature measurements are inaccurate, temperature recalibration should be performed. For an accurate recalibration, please contact your local Hanna Instruments Office or follow the instructions below. Press “T” functional key to enter the temperature calibration mode while in EC or Salinity calibration screens .
  • Page 57 • When the reading is stable and within range of the selected calibration point, the CFM functional key is displayed. • Press CFM to confirm. • The second expected calibrated point is displayed. • Immerse the probe into the second vessel as close as possible to the reference thermometer. Allow a few seconds for the probe to stabilize.
  • Page 58 If the Wrong source is the temperature reading change the probe and restart calibration. If calibration cannot be performed contact your local Hanna Instruments Office. For one point calibration press ESC after first point was confirmed.
  • Page 59 USB socket and the other to the serial or USB port of your PC. To allow our users access to the latest version of Hanna Instruments PC compatible software, we made the products available for download at http://software.hannainst.com. Select the product code and click Download Now.
  • Page 60 CHR xx Change the instrument range according with the parameter value (xx): • xx=10 EC range • xx=11 Resistivity range • xx=12 TDS range • xx=13 USP range • xx=14 NaCl % range • xx=15 Salinity, Seawater range • xx=16 Salinity, PSU range The instrument will answer for these commands with: <STX>...
  • Page 61 • xx=15 Salinity, Seawater range • xx=16 Salinity, PSU range • Meter status (2 chars of status byte): represents a 8 bit hexadecimal encoding. • 0x10 - temperature probe is connected • 0x20 - autolog in progress • 0x01 - new GLP data available •...
  • Page 62 PRFxx Request profile “xx” information The answer string contains: 10 - EC range 11 - Resistivity range 12 - TDS range 13 - USP range 14 - NaCl % range 15 - Salinity, Seawater range 16 - Salinity, Seawater PSU range •...
  • Page 63 The answer string contains: • Number of profiles (2 chars) • Current profile ID (2 chars) • Number of languages (2 chars) NSLx Requests the number of logged samples. The command parameter (1 char): • E - the request is for EC range •...
  • Page 64 • Salinity coefficient (7 chars) (only for salinity lots) • Profile ID (4 chars) • Profile creation time (12 chars) • Lot start time (12 chars) Lot record data: • EC value (8 chars) • EC unit (1 char): 0 - µS; 1 - mS •...
  • Page 65 • Temperature reading (8 chars) • Resistivity or TDS or salinity reading (8 chars) • Unit (1 char) • TDS factor (6 chars) or salinity coefficient (7 chars) • Log time (12 chars) For USP records: • Record ID (3 chars) •...
  • Page 66 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 67 Broken EC probe. Replace the probe. gives faulty readings. At startup the meter displays One of the keys is blocked. Contact your local Hanna Hanna Instruments Logo tags Instruments Office. permanently. Meter shuts off. Dead batteries; Auto Power Replace batteries.
  • Page 68 Rinse the probe with clean water after measurements. If more cleaning is required, remove the probe sleeve and clean the probe with a cloth or a nonabrasive detergent. Make sure to reinsert the sleeve onto the probe properly and in the right direction. After cleaning the probe, recalibrate the instrument. The platinum rings are sustained with glass.
  • Page 69 Put the probe into a beaker with replatinization solution and press Start. The process can be interrupted by pressing Stop or ESC key. The replatinization process takes about 5 minutes. Remove the probe from the replatinization solution and rinse it with deionized water.
  • Page 70 Code Description HI70031C 1413 µS/cm, 20 ml sachet, 25 pcs. HI70039C 5000 µS/cm, 20 ml sachet, 25 pcs. HI70030C 12880 µS/cm, 20 ml sachet, 25 pcs. HI6033 84 µS/cm, 500 ml bottle HI6031 1413 µS/cm, 500 ml bottle HI7039L 5000 µS/cm, 500 ml bottle HI7030L 12880 µS/cm, 500 ml bottle HI7034L...
  • Page 71 When shipping any instrument, make sure it is properly packed for complete protection. Hanna Instruments reserves the right to modify the design, construction or appearance of its products without advance notice.
  • Page 72 World Headquarters Hanna Instruments Inc. Highland Industrial Park 584 Park East Drive Woonsocket, RI 02895 USA www.hannainst.com MAN98197 Printed in ROMANIA...