Instruction Manual HI 222 pH/mV/ºC Bench Meter with Calibration Check POOR GOO D SLO W FAST pH ATC C CAL Func CF GLPM RANG E tions Selec t pH/O RP Store Log Inf ormati Reca on ll Set Ins Log Inform Clear ation me Lotru g/Cal nt Param Show Inform ete GLP ation rs Inform ation LOG C RCL CAL SET/C LR CFM/G LP LOG pH Ca RCL C libratio n Start Calib ration Selec st t 1 Bu ffer Confi rm 1 st RANG Buffe E Selec r t 2 ndBu ffer Confi rm 2 nd Buffe r / CFM / CFM HI 22 Micro 2 Cal proc ibratio
Dear Customer, Thank you for choosing a Hanna Instruments product. Please read this instruction manual carefully before using the instrument. This manual will provide you with the necessary information for correct use of the instrument, as well as a precise idea of its versatility. For additional technical information, do not hesitate to e-mail us at tech@hannainst.com or refer to back cover for our worldwide contact list. directives.
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 or the nearest Hanna Customer Service Center. Each instrument is supplied complete with: • HI 1048P Glass-body pH Electrode with 1 m (3.
FUNCTIONAL DESCRIPTION Electrode Response Electrode Condition Front Panel Primary LCD Secondary LCD ATC pH C 1 POOR GOOD SLOW FAST 10 2 Functions 3 RANGE 4 CAL CFM GLP 5 C C 6 pH Calibration Select pH/ORP LOG Store Log Information RCL Recall Log Information SET/CLR Set Instrument Parameters Clear Log/Cal Information CFM/GLP Show GLP Information 7 CAL Start Calibration / Select 1 Buffer CFM / CFM st 8 RANGE st Confirm 1 Buffer 9 nd Select 2 Buffer nd Confirm 2 Buff
HI222 SPECIFICATIONS Range -2.00 to 16.00 pH ±699.9 mV / ±2000 mV -20.0 to 120.0 °C Resolution 0.01 pH 0.1 mV / 1 mV 0.1 °C Accuracy ±0.01 pH (@20°C/68°F) ±0.2 mV / ±1 mV ±0.5 °C pH Calibration 1 or 2-point, automatic, with 7 memorized pH buffer values (1.68, 3.00, 6.86, 7.01, 9.18, 10.01, 12.
OPERATIONAL GUIDE POWER CONNECTION Plug the 12 VDC adapter into the power supply socket. Note: These instruments use non volatile memory to retain the pH, mV, temperature calibrations and all other settings, even when unplugged. Note: Make sure a fuse protects the mains line. ELECTRODE AND PROBE CONNECTIONS For HANNA P Type pH or ORP electrodes (with internal reference) connect the electrode’s BNC to the socket on the back of the instrument and the pin to the appropriate socket.
• The pH is displayed on the primary LCD and the temperature on the secondary LCD. pH POOR GOOD SLOW ATC FAST • The pH reading is out of range, the closest full-scale value will be displayed blinking on the primary LCD. • It is also possible to view the mV reading by pressing the RANGE key.
• The instrument automatically defaults to the ORP measurement mode if HANNA P type ORP electrode is detected. • Submerge the ORP electrode tip (4 cm/1½”) into the sample. Allow a few minutes for the reading to stabilize. • The instrument displays the mV reading on the primary LCD. • If the reading is out of range, the closest full-scale value will be displayed blinking on the primary LCD. TAKING TEMPERATURE MEASUREMENTS Connect the HI 7669/2W temperature probe and turn the instrument on.
PROCEDURE The user has a choice of 7 memorized buffers: pH 1.68, 3.00, 6.86, 7.01, 9.18, 10.01 and 12.45. It is always recommended to perform a two-point calibration. The instrument however allows a one-point calibration, as described on page 10. TWO-POINT CALIBRATION For most applications it is recommended that pH 7.01 or 6.86 buffers to 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.
• Press the ARROW keys to select a different buffer value, if necessary. • When the reading is stable and close to the selected buffer, the “CFM” tag will blink and if enabled, an audible signal will sound. CAL CFM ATC pH BUFFER 1 • Press the CFM key to confirm calibration. The instrument will ask for a second calibration buffer and will display the measured pH on the first LCD and the second calibration buffer on the second LCD.
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. Calibrating under these conditions will give measurement errors. ERROR MESSAGES Error messages appear if one or all of the calibration parameters are out of accepted windows.
ELECTRODE This message appears if the cleaning procedure performed as a result of the above two messages is found by the instrument to be unsuccessful. Replace the electrode. CAL ATC pH BUFFER 1 ELECTRODE WRONG BUFFER TEMPERATURE This message appears if the temperature of the buffer is outside the defined buffer temperature range.
a result of unacceptable offset variation or in the second calibration buffer as a result of unacceptable slope variation. This variation may result from dirt on the electrode or contaminated buffer. Refer to the electrode cleaning procedure or use fresh buffer. CFM CAL ATC pH BUFFER 1 CHECK BUFFER CLEAN ELECTRODE CONTAMINATED BUFFER This warning message appears in order to alert that the buffer could be contaminated. Refresh your buffer and continue the calibration procedure.
Also, when the instrument cannot evaluate the electrode response or pH 1.68 or pH 12.45 buffer were used as calibration buffer, the response gauge will be empty. If the electrode is in a very poor condition the first condition segment will blink. If electrode response is very slow the first response segment will blink. 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.
• The date (mm.dd). • The year (yyyy). • The pH calibration offset. • The pH calibration slope in mV/pH normalized to 25 °C. Note: If you calibrate using electrodes with pin the electrode condition and response gauges appear while the offset and slope are displayed. • The first pH calibration buffer along with any warning messages issued while calibrating at this point. • The second pH calibration buffer along with any warning messages issued while calibrating at this point.
• The calibration Alarm Time-Out status: if disabled or the number of days until the calibration alarm will be displayed or if expired (7 days ago) Press the GLP key at any time and the instrument will return to measuring mode. If calibration has not been performed, the instrument displays “no CAL” blinking.
LOGGING Up to 100 LOG samples can be stored in memory. LOGGING THE CURRENT DATA To store the current reading into memory press the LOG key while in measuring mode. The instrument will display the current date (mm.dd) on the primary LCD, the record number on the secondary LCD and the “LOG” tag will blink for a few seconds (see example below: record No. 27 dated July 14): If there are less than 6 memory locations remaining, the record number and the “Lo” message will blink to alert the user.
Otherwise the instrument will display log data on the primary LCD and the last stored record number on the secondary LCD, along with the “LOG” and the “RCL” tags. Note: The “LOG” and “RCL” tags remain on LCD while instrument is in the viewing logged data mode. pH LOG RCL Press the RCL key at any time to return to measuring mode.
•The date on the primary LCD and the “dAtE” message on the secondary LCD. •The year on the primary LCD and the “YEAr” message on the secondary LCD. •The calibration offset on the primary LCD and the “oFFS” message on the secondary LCD. •The calibration slope on the primary LCD and the “SLoP” message on the secondary LCD. Note: Before displaying the “Hour”, “Year”, “oFFS” or “SLoP” messages, the record number is displayed for about one second.
•The “dEL” message on the primary LCD and the selected record or date on the secondary LCD. The “CFM” and the ”DEL” tags will blink: Press SET key to select the current record, the records from the selected date or all records to be deleted. the date. or “ALL” records. Press the ARROW keys to change the record or the date.
SETUP Setup mode allows viewing and modification of the following parameters: • Calibration Alarm Time Out • Instrument ID • Current Time (hour & minute) • Current Date (month & day) • Current Year • Beep Status • Baud Rate (serial communication) • Command Prefix (serial communication) To enter the Setup mode press the SET/CLR key while the instrument is in measuring mode. Press SET/CLR key to exit SETUP mode. Select a parameter with the ARROW keys. Press the CAL key to change a parameter value.
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. Note: The instrument ID is downloaded to a PC as part of a logged data set to identify it’s origin. CURRENT TIME SET Press the CAL key when the current time is displayed. The hour will begin blinking. Press the ARROW keys to change the hour. Press the RANGE key. The minutes will begin blinking.
CURRENT YEAR SET Press the CAL key when the current year is displayed. The year will begin blinking. Press the ARROW keys to change the year. Press the CFM key to save the modified value or press the CAL key to cancel without saving the year. BEEP STATUS SET Press the CAL key when the beep status is displayed. The beep status (On or OFF) will begin to blink. Press the ARROW keys to change the beep status (On or OFF).
SERIAL COMMUNICATION BAUD RATE SET Press the CAL key when the baud rate is displayed. The baud rate (600, 1200, 2400, 4800 or 9600) will begin to blink. Press the ARROW keys to change the baud rate. Press the CFM key to save the modified baud rate or press the CAL key to cancel without saving the baud rate. SERIAL COMMUNICATION COMMAND PREFIX SET Press the CAL key when the command prefix is displayed. The command prefix (0 to 47) will begin to blink. Press the ARROW keys to change the command prefix.
TEMPERATURE CALIBRATION (for technical personnel only) The instruments are factory calibrated for temperature. Hanna’s temperature probes are interchangeable and temperature calibration is not necessary when replaced. If the temperature measurements are not accurate, temperature recalibration should be performed. For an accurate recalibration, contact your dealer or the nearest Hanna Customer Service Center, or follow the instructions below. • Switch off the instrument.
• The “ ” tag will blink until the reading has stabilized. • Use the ARROW keys to set the reading on the secondary LCD to that of the hot water bath. • When the reading is stable and close to the selected calibration point, the “CFM” tag will blink. CAL CFM C • Press the CFM key to confirm the calibration or the CAL key to leave the calibration mode. Note: If the measured value is not close enough to the displayed value on secondary LCD, the “WRONG “ tag will blink.
mV CALIBRATION (for technical personnel only) All instruments are factory calibrated for mV. Hanna’s pH and ORP electrodes are interchangeable and mV calibration is not needed when replaced. If mV measurements are not accurate, mV recalibration should be carried out. For an accurate recalibration, contact your dealer or the nearest Hanna Customer Service Center or follow the instructions below. A two or three point calibration can be performed at 0 mV, +600 mV and +1800 mV. • Switch off the instrument.
Note: Press the CAL key to leave the calibration mode at any time. If the measured value is not close to the calibration point, the “WRONG“ tag will start to blink. In this case, check if the value set on the simulator is the same as the calibration value on the instrument. Set the proper value on the simulator. PC INTERFACE Data transmission from the instrument to the PC can be done with HI 92000 Windows® compatible software (optional). The HI 92000 also offers graphing and on-line help.
SIMPLE RNG CAL CFM UPC DWC SET COMMANDS Is equivalent to pressing the RANGE key Is equivalent to pressing the CAL key Is equivalent to pressing the CFM/GLP key Is equivalent to pressing the UP arrow key Is equivalent to pressing the DOWN arrow key Is equivalent to pressing the SET/CLR key COMMANDS REQUIRING AN ANSWER pH? MV? TM? MDR PAR NSL GLP LOD xxx LOD ALL Causes the instrument to send the pH reading (“Err 1” is sent if out of range). If the range is set to mV, “Err 6” is received.
pH VALUES AT DIFFERENT TEMPERATURES 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. TEM P pH V A LU ºC ºF 1 .6 8 4 .0 1 6 .8 6 7 .0 1 0 32 1 .6 7 4 .0 1 6 .9 8 7 .1 3 5 41 1 .6 7 4 .0 0 6 .9 5 7 .1 0 10 50 1 .6 7 4 .0 0 6 .9 2 7 .0 7 15 59 1 .6 7 4 .0 0 6 .
ELECTRODE CONDITIONING & MAINTENANCE PREPARATION Remove the protective cap. DO NOT BE ALARMED IF SALT DEPOSITS ARE PRESENT. This is normal with electrodes. They will disappear when rinsed with water. During transport, tiny bubbles of air may form inside the glass bulb affecting proper functioning of the electrode. These bubbles can be removed by “shaking down” the electrode as you would do with a glass thermometer.
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 using a plastic refilling pipette (HI 740157). As recommended by the LCD message on instrument on start-up, remove or loosen the fill hole screw on the electrode for better performance.
IMPORTANT: After performing any of the cleaning procedures, rinse the electrode thoroughly with distilled water, refill the reference chamber with fresh electrolyte (not necessary for gel-filled electrodes) and soak the electrode in HI 70300 or HI 80300 Storage Solution for at least 1 hour before taking measurements. TROUBLESHOOTING GUIDE Symptoms Problem Solution Slow response / excessive drift. Dirty pH electrode.
Symptoms Problem Solution AmpHel electrodes do not respond to pH changes. The battery is run down. Replace the electrode. The meter fails to calibrate or gives faulty readings. Broken pH electrode. Replace the pH electrode. At start-up the LCD display all segments permanently. One of the keys is blocked. Check the keyboard or contact your dealer. Explicit warnings are displayed during pH calibration. Dirty pH electrode or contaminated buffers. Follow displayed instructions.
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.
ACCESSORIES pH CALIBRATION SOLUTIONS HI 50003P HI 70004P HI 70007P HI 70010P HI 7001M HI 5003 HI 7004L HI 7006L HI 7007L HI 7009L HI 7010L HI 7001L HI 8004L HI 8006L HI 8007L HI 8009L HI 8010L pH 3.00 Buffer Solution, 20 mL sachet, 25 pcs pH 4.01 Buffer Solution, 20 mL sachet, 25 pcs pH 7.01 Buffer Solution, 20 mL sachet, 25 pcs pH 10.01 Buffer Solution, 20 mL sachet, 25 pcs pH 1.68 Buffer Solution, 230 mL bottle pH 3.00 Buffer Solution, 500 mL bottle pH 4.01 Buffer Solution, 500 mL bottle pH 6.
REFILLING ELECTROLYTE SOLUTIONS HI 7071 HI 7072 HI 7082 HI 8071 HI 8072 HI 8082 3.5M KCl + AgCl Electrolyte, 4x30 mL, for single junction electrodes 1M KNO3 Electrolyte, 4x30 mL 3.5M KCl Electrolyte, 4x30 mL, for double junction electrodes 3.5M KCl + AgCl Electrolyte in FDA approved bottle, 4x30 mL, for single junction electrodes 1M KNO3 Electrolyte in FDA approved bottle, 4x30 mL 3.
HI 1131P; Use: general purpose. Glass-body, single junction, refillable, combination pH electrode. 9.5mm DIA 0.37" 12 mm 0.5" HI 1131 120 mm 4.7" "S" VERSION HI 1083P; Use: biotechnology, micro titration. Glass-body, micro, Viscolene, nonrefillable, combination pH electrode 12 mm 0.5" 5 mm 0.2" 3 mm 0.12" 3.0 mm DIA 0.12" HI 1083 120 mm 4.7" HI 1048P; Use: wine measurements. Glass-body, refillable pH electrode with open junction, Teflon® collar HI 1048 ORP ELECTRODES HI 3131P; Use: titration.
HI 76405Electrode holder HI 8427 HI 931001 HI 7669/2W HI 740157 HI 92000 HI 920010 pH and ORP electrode simulator with 1 m (3.3') coaxial cable ending in female BNC connectors pH and ORP electrode simulator with LCD and 1 m (3.3') coaxial cable ending in female BNC connectors Temperature probe with 1 m (3.
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