Hanna Instruments HI 2222 Instruction Manual
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Hanna Instruments HI 2222 Instruction Manual

Bench meter with calibration check
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Instruction Manual
HI 2222
pH/mV/ºC
Bench Meter
with Calibration Check
1

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Summary of Contents for Hanna Instruments HI 2222

  • Page 1 Instruction Manual HI 2222 pH/mV/ºC Bench Meter with Calibration Check...

  • Page 2: Table Of Contents

    W A R R A N T Y W A R R A N T Y HI 2222 is guaranteed for two years against defects in workmanship and materials when used for their intended purpose and maintained according to instructions. The electrodes and the probes are guaranteed for a period of six months.

  • Page 3: Preliminary Examination

    GENERAL DESCRIPTION GENERAL DESCRIPTION GENERAL DESCRIPTION HI 2222 is a logging microprocessor-based pH/ORP/temperature bench meters with Calibration Check. Calibration Check performs a set of diagnostic tests during calibration using the history of electrode slope and offset to detect problems that can cause loss of accuracy.

  • Page 4: 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 5: Hi 2222 Specifications

    H I 2 2 2 2 H I 2 2 2 2 H I 2 2 2 2 H I 2 2 2 2 H I 2 2 2 2 SPECIFICATIONS SPECIFICATIONS SPECIFICATIONS SPECIFICATIONS SPECIFICATIONS 2 – 0 0 . 0 0 .

  • Page 6: Operational Guide

    OPERATIONAL GUIDE OPERATIONAL GUIDE OPERATIONAL GUIDE OPERATIONAL GUIDE OPERATIONAL GUIDE POWER CONNECTION POWER CONNECTION POWER CONNECTION POWER CONNECTION POWER CONNECTION Plug the 12 VDC adapter into the power supply socket. Notes: • These instruments use non volatile memory to retain the pH, mV, temperature calibrations and all other settings, even when unplugged.
  • Page 7 pH MEASUREMENT pH MEASUREMENT pH MEASUREMENT pH MEASUREMENT pH MEASUREMENT Make sure the instrument has been calibrated before taking pH measurements. • Submerse the tip of a properly conditioned electrode (see page 31) and the temperature 3 cm probe approximately 3 cm (1¼”) into the sample (1¼") to be tested and stir gently.
  • Page 8 ORP MEASUREMENTS ORP MEASUREMENTS ORP MEASUREMENTS ORP MEASUREMENTS ORP MEASUREMENTS An optional ORP electrode must be used to perform ORP measurements (see Accessories). Oxidation-Reduction Potential (REDOX) measurements provide the quantification of the oxidizing or reducing power of the tested sample. The surface of the ORP electrode must be clean and smooth in order to obtain an accurate measurement.

  • Page 9: Ph Calibration

    p p p p p H CALIBRATION H CALIBRATION H CALIBRATION H CALIBRATION H CALIBRATION Calibrate the instrument frequently, especially if high accuracy is required. For best results and constant display of electrode condition and electrode response on the bar graph gauges, daily calibration is recommended.
  • Page 10 TWO-POINT CALIBRATION TWO-POINT CALIBRATION TWO-POINT CALIBRATION TWO-POINT CALIBRATION TWO-POINT CALIBRATION For most applications it is recommended that pH 7.01 or 6.86 buffers be used as the first calibration point and pH 3.00 (for acidic samples) or pH 9.18/10.01 (for alkaline samples) as the second calibration point. Note: The pH 12.45 buffer is not for general measurement;...
  • Page 11 • When the reading is stable and close to the selected buffer, the “CFM” tag will blink and if enabled, an audible signal will sound. • Press the CFM key to confirm the calibration. The calibrated value will be displayed on the primary LCD and the second expected buffer value on the secondary LCD.
  • Page 12 ONE-POINT CALIBRATION ONE-POINT CALIBRATION ONE-POINT CALIBRATION ONE-POINT CALIBRATION ONE-POINT CALIBRATION If the “Pnt” option is selected, the new calibration point overrides an existing one. The adjacent slopes will be reevaluated. If the “OFFS” option is selected, an electrode offset correction is performed. The adjacent slopes will remain unchanged.

  • Page 13: Enhanced Calibration Messages

    ENHANCED CALIBRATION MESSAGES ENHANCED CALIBRATION MESSAGES ENHANCED CALIBRATION MESSAGES ENHANCED CALIBRATION MESSAGES ENHANCED CALIBRATION MESSAGES The stored calibration history to used issue error and warning messages during calibration to help ensure the highest accuracy. As electrode aging is normally a slow process, substantial changes from previous calibrations are likely due to a temporary problem with the electrode or buffers.
  • Page 14 BUFFER TEMPERATURE BUFFER TEMPERATURE BUFFER TEMPERATURE BUFFER TEMPERATURE BUFFER TEMPERATURE This message appears if the temperature of the buffer is outside the defined buffer temperature range. WARNING MESSAGES During calibration, the Calibration Check feature analyzes the electrode calibration history and warns the user when problems have been detected.

  • Page 15: Electrode Condition & Electrode Response Time

    ELECTRODE RESPONSE TIME ELECTRODE RESPONSE TIME When using an appropriate HANNA P Type BNC electrode with pin, HI 2222 will assess electrode condition and response time during each calibration, the calibration status is displayed for the rest of the day. POOR...

  • 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: 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 the storage and retrieval of data regarding the maintenance and status of the electrode. All data regarding the last calibration is stored for the user to review when necessary.
  • Page 18 • • • • • The pH calibration slope in mV/pH normalized to 25 °C (the percentage is referred to the ideal value of 59.16 mV/pH). Note: If you calibrate using electrodes with pin the electrode condition and response gauges appear while the offset and slope are displayed.

  • Page 19: Logging

    Notes: • Press GLP to return to measurement mode. • If calibration has not been performed, the instruments display “no CAL” message blinking. L O G G I N G L O G G I N G L O G G I N G L O G G I N G L O G G I N G Up to 100 logged samples can be stored into memory.
  • Page 20 The instrument will display the logged measurement value on the primary LCD and the record number on the secondary LCD, along with the “LOG” and “RCL” tags. Note: The “LOG” and “RCL” tags remain on LCD while in memory recall mode.
  • Page 21 Note: On the screens where record number is not displayed press the SETUP key to display the record number. • To delete records press CLR key. The “dEL” message will be displayed on the primary LCD and the selected record on the secondary LCD. The “CFM”...

  • Page 22: 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 modification of the following parameters: • Calibration Expiration Alarm • Current Time (hour & minute) •...
  • Page 23 Press the ARROW keys to change the displayed value. Press the CFM key to save the modified value or press the CAL key to escape without saving. CURRENT DATE CURRENT DATE CURRENT DATE CURRENT DATE CURRENT DATE Press the CAL key when the current date is displayed. The year will start blinking.
  • Page 24 I I I I I NSTRUMENT ID NSTRUMENT ID NSTRUMENT ID NSTRUMENT ID NSTRUMENT ID Press the CAL key when “InId” is displayed. The instrument ID (“0000” to “9999”) will begin blinking. Press the ARROW keys to change the instrument ID value. Press the CFM key to save the modified instrument ID value or press the CAL key to cancel without saving the instrument ID.

  • Page 25: 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 26: Mv Calibration (For Technical Personnel Only)

    • When the reading is stable and close to the selected calibration point, “READY” tag will appear and “CFM” tag will blink. • Press CFM to confirm. The instrument returns to measurement mode. Note: If the reading is not close to the selected calibration point, “WRONG”...

  • Page 27: Pc Interface

    Make sure that your instrument is switched off and plug one connector to the instrument USB socket and the other to the USB port of your PC. Note: If you are not using Hanna Instruments HI 92000 software, please see the following instructions.
  • Page 28 The instrument will answer for these commands with: <STX> <answer > <ETX> 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>...
  • Page 29 Requests the instrument model name and firmware code (16 ASCII chars). Requests the calibration data record. The answer string contains: • GLP status (1 char): represents a 4 bit hexadecimal encoding. • 0x01 - pH calibration available • pH calibration data (if available), which contains: •...
  • Page 30 Requests the number of logged samples (4 chars). LODxxx Requests the xxx record logged data. LODALL Requests all Log on demand data. The answer string contains: • pH resolution (2 chars): 00 - pH 0.001 resolution, 01 - pH 0.01 resolution •...

  • Page 31: 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 32 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.
  • Page 33 CLEANING PROCEDURE CLEANING PROCEDURE CLEANING PROCEDURE CLEANING PROCEDURE 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. •...

  • Page 34: 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 35: 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 resistance of glass electrodes partially depends on the temperature. The lower the temperature, the higher the resistance.

  • Page 36: 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 BUFFER SOLUTIONS HI 5003P pH 3.00 Buffer Sachets, 20 mL, 25 pcs...
  • Page 37 ORP PRETREATMENT SOLUTIONS HI 7091L Reducing Pretreatment Solution, 500 mL HI 7092L Oxidizing Pretreatment Solution, 500 mL pH ELECTRODES All electrodes with code ending with P are supplied with BNC & pin connector and 1 m (3.3') cable, as shown below. HI 1043P;...
  • Page 38 HI 1048P; Use: wine measurements. Glass-body, refillable pH electrode with open junction, (PTFE) collar. HI 1048 ORP ELECTRODES HI 3131P; Use: titration. Glass-body, refillable, combination platinum ORP electrode. 12 mm 0.5" HI 3131 150 mm 5.9" "S" VERSION Consult the Hanna General Catalog for more electrodes with BNC and pin connectors.

  • Page 39: Recommendations For Users

    24 VAC or 60 VDC. To avoid damage or burns, do not perform any measurement in microwave ovens. Windows is registered Trademark of "Microsoft Co." ® Hanna Instruments reserves the right to modify the design, construction and appearance of its products without advance notice.
  • Page 40 MAN2222 04/09 Printed in Romania, EU...

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