Related Manuals for Hanna Instruments HI 2221
Summary of Contents for Hanna Instruments HI 2221
- Page 1 Instruction Manual HI 2221 HI 2223 pH/mV/ºC Bench Meters with Calibration Check w w w. h a n n a i n s t . c o m sale@ponpe.com www.ponpe.com...
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Page 2: Table Of Contents
W A R R A N T Y W A R R A N T Y HI 2221 and HI 2223 are 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
Other features include: up to five pH point calibration with seven memorized buffers (1.68, 4.01, 6.86, 7.01, 9.18, 10.01 and 12.45 pH), logging up to 100 samples (for HI 2221) and 500 samples (for HI 2223), GLP, calibration due alarm, pH reading with manual or automatic temperature compensation and PC software interface. -
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 2221 Specifications
H I 2 2 2 1 H I 2 2 2 1 H I 2 2 2 1 H I 2 2 2 1 H I 2 2 2 1 SPECIFICATIONS SPECIFICATIONS SPECIFICATIONS SPECIFICATIONS SPECIFICATIONS 2 – 0 0 . 0 0 . -
Page 6: Hi 2223 Specifications
H I 2 2 2 3 H I 2 2 2 3 H I 2 2 2 3 H I 2 2 2 3 H I 2 2 2 3 SPECIFICATIONS SPECIFICATIONS SPECIFICATIONS SPECIFICATIONS SPECIFICATIONS 2 – 0 0 . 0 0 . -
Page 7: 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 8 probe approximately 3 cm (1¼”) into the sample to be tested and stir gently. Allow time for the electrode to stabilize. • The pH is displayed on the primary LCD and the temperature on the secondary LCD. • The pH reading is out of range, the closest full-scale value will be displayed blinking on the primary LCD.
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Page 9: Ph Calibration
Pretreatment solutions are available to condition the electrode and speed up the response time. • The instrument automatically defaults to the 3 cm mV measurement mode if HANNA P type ORP (1¼") electrode is detected. • Submerse the ORP electrode tip (3 cm/1¼”) into the sample. Allow a few minutes for the reading to stabilize. - Page 10 PROCEDURE PROCEDURE PROCEDURE PROCEDURE PROCEDURE Calibration can be performed at up to five points. For accurate measurements a three point calibration is recommended. Calibration can be performed using the seven memorized buffers: • pH 1.68, 4.01, 6.86, 7.01, 9.18, 10.01 and 12.45. FIVE-POINT CALIBRATION FIVE-POINT CALIBRATION FIVE-POINT CALIBRATION...
- 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 • After the third calibration point is confirmed, submerse the pH electrode and the temperature probe approximately 3 cm (1¼”) into the next buffer solution and stir gently. The temperature probe should be close to the pH electrode. • If necessary, press the ARROW keys to select a different buffer value. •...
- Page 13 Notes: • To clear calibration parameters for all uncalibrated buffers starting with current buffer, press CLR. The calibration will continue from the current point. If this procedure is performed while calibrating in the first calibration point, the instrument returns to measurement mode. •...
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Page 14: 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 15 Replace the electrode. 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.
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Page 16: Electrode Condition & Electrode Response Time
ELECTRODE RESPONSE TIME When using an appropriate HANNA P Type BNC electrode with pin, HI 2221 and HI 2223 will assess electrode condition and response time during each calibration, the calibration status is displayed for the rest of the day. -
Page 17: 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 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 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 19 • • • • • The pH calibration offset. • • • • • 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 20 • If “no bUF” message appears on the LCD, the instrument informs you that the calibration was performed with less than five buffers. • Calibration Expiration status: - if disabled. - or the number of days until the calibration alarm will be displayed, - or if expired (7 days ago).
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Page 21: Logging
L O G G I N G L O G G I N G L O G G I N G Up to 100 (HI 2221) or 500 (HI 2223) logged samples can be stored in memory. LOGGING THE CURRENT DATA... - Page 22 Press the RCL key to return to measurement mode. Use the ARROW keys to scroll through the stored records: Press the RANGE key to view additional data: • The mV value on the primary LCD and the temperature on the secondary LCD.
- Page 23 Press the ARROW keys to change the selected record. To delete all records press the SETUP key, “ALL” tag will appear on the secondary LCD. Press the CFM key to confirm the deleting of the selected record, or all records. Instrument will display on the primary LCD the “nuLL” message. LOG RCL Notes: •...
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Page 24: 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 • One-point Calibration Behavior •... - Page 25 Press CFM to save the behavior for one-point calibration. Press CAL to escape without saving. pH RESOLUTION (HI 2223 only) pH RESOLUTION (HI 2223 only) pH RESOLUTION (HI 2223 only) pH RESOLUTION (HI 2223 only) pH RESOLUTION (HI 2223 only) Press CAL when “rESo”...
- Page 26 Press the RANGE key. The day will start blinking. Press the ARROW keys to change the day. Press the CFM key to save the modified value or press the CAL key to escape without saving. BEEP STATUS BEEP STATUS BEEP STATUS BEEP STATUS BEEP STATUS Press CAL when the beep status is displayed.
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Page 27: 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 28 • 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”...
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Page 29: Mv Calibration (For Technical Personnel Only)
m m m m m V CALIBRATION V CALIBRATION V CALIBRATION V CALIBRATION V CALIBRATION (for technical personnel only) All the instruments are factory calibrated for mV. Hanna’s ORP electrodes are interchangeable and no mV calibration is needed when they are replaced. If the mV measurements are inaccurate, mV recalibration should be performed. -
Page 30: 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 31 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 32 • Temperature reading - 8 ASCII chars, with sign and two decimal points, always in ºC. 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.
- Page 33 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 •...
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Page 34: 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 35 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 36 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. •...
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Page 37: 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 38: 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 39: 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 70004P pH 4.01 Buffer Sachets, 20 mL, 25 pcs... - Page 40 ORP PRETREATMENT SOLUTIONS HI 7091L Reducing Pretreatment Solution, 500 mL HI 7092L Oxidizing Pretreatment Solution, 500 mL pH ELECTRODES All electrodes with part numbers ending in P are supplied with a BNC and pin connector and 1 m (3.3') cable, as shown below. HI 1043P;...
- Page 41 ORP ELECTRODES HI 3131P; Use: titration. Glass-body, refillable, combination platinum ORP electrode. 12 mm 0.5" HI 3131 150 mm "S" VERSION 5.9" Consult the Hanna General Catalog for more electrodes with BNC and pin connectors. 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...
- Page 42 OTHER ACCESSORIES Voltage adapter from 115 VAC to 12 VDC (USA plug) HI 710005 HI 710006 Voltage adapter from 230 VAC to 12 VDC (European plug) HI 710012 Voltage adapter from 240 VAC to 12 VDC (UK plug) HI 710013 Voltage adapter from 230 VAC to 12 VDC (South Africa plug) HI 710014...
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Page 43: Recommendations For Users
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 and appearance of its products without advance notice. sale@ponpe.com... - Page 44 Hanna Instruments Inc. Highland Industrial Park 584 Park East Drive Woonsocket RI 028985 USA Local Sales and Customer Service office Hanna Instruments United States Inc. Highland Industrial Park 584 Park East Drive Woonsocket RI 028985 USA Tel. (800) 426 6287 Fax (401) 765 7575 www.hannainst.com/usa...