Instruction Manual HI9224 - HI92240 Portable Microprocessor Printing and Logging pH Meters instru m ents pH HI 92 24 MICR pH M OPROC ETER ESSO R PR INTI NG ON/O FF PAP E R CAL CFM BUF RAN F GE PRIN T LOG http://www.hannainst.
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 all the necessary information for the correct use of the instrument, as well as a precise idea of its versatility in a wide range of applications. These instruments are in compliance with directives EN 500811 and EN 50082-1. TABLE OF CONTENTS PRELIMINARY EXAMINATION ....................................................................
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. Each printing/logging pH meter is supplied complete with: • HI1230B Combination pH Electrode • HI7669/2W Temperature Probe • AA size Alkaline Batteries (4 pcs) • Paper rolls (5 pcs) • Rugged Carrying Case. Note: Save all packing material until you are sure that the instrument functions correctly.
FUNCTIONAL DESCRIPTION HI9224 1 8 2 e instrum nts 3 pH 4 HI 9224 5 6 MICROPROCESSOR PRINTING pH METER ON/OFF PAPER CAL CFM 9 10 11 7 BUFF 12 RANGE PRINT LOG 1) Electrode Connector 2) Temperature Probe Connector 3) LCD Display 4) PAPER key to move the paper up 5) ON/OFF key, to turn the meter on or off 6) CAL key to enter or exit calibration mode 7) RANGE key, to select the pH or the °C measurement modes 8) Power adapter plug 9) CFM key to confirm the calibration reading 10) BUFF key to sel
FUNCTIONAL DESCRIPTION HI92240 1 8 2 e instrum nts 3 pH 4 HI 92240 5 6 MICROPROCESSOR LOGGING pH METER PRINT PAPER ALT CAL 9 10 11 7 CON 12 RANGE TIME 1) 2) 3) 4) 5) 6) 7) 8) 9) LOG Electrode Connector Temperature Probe Connector LCD Display PAPER key to move the paper up PRINT key to obtain a printout ALT key Alternate Function Key RANGE key to display the temperature or the pH Power Adapter Plug for 12VDC battery charger CAL key to enter or exit the calibration mode and to set up th
SPECIFICATIONS Range pH °C Resolution pH °C Accuracy pH (@20°C/68°F) °C Typical EMC pH Deviation °C Calibration Temperature Compensation Electrode Temp. probe Input Impedance Printer Printing Interval (HI9224 only) Printing/Logging Interval (HI92240 only) Power supply Environment Dimensions Shipping Weight 0.00 to 14.00 -10.0 to 100.0 0.01 0.1 ±0.01, excluding probe error ±0.5, excluding probe error ±0.03 ±0.8 Automatic 1 or 2 points with 3 memorized buffers (4.01, 7.01and 10.
LCD FUNCTIONAL DESCRIPTION pH 1 °C LOG 2 LO BAT 1) Primary Display 2) Secondary Display INITIAL PREPARATION Each meter is supplied complete with batteries. Remove the back cover, unwrap the batteries and install them while paying attention to the polarity. To prepare the instrument for use, connect the pH electrode to the BNC connector located on the top of the instrument. Then connect the temperature probe to the appropriate connector.
OPERATIONAL GUIDE SET DATE / TIME / PRINTING INTERVAL (FOR HI92240 ONLY): Press the ALT and the TIME keys simultaneously. The display will show the date setting. At the bottom of the display the year will be flashing. ALT RANGE DATE CAL TIME Use the UP or the DOWN arrow key to select the year. CAL CON When the correct year is selected, press the TIME key once. TIME The left digits of the display flash, showing the month. DATE Select the month by using the UP or the DOWN arrow key.
Use the UP or the DOWN arrow key to select the correct day. CAL CON Press the ALT and the TIME keys simultaneously. CAL ALT RANGE TIME The display will now show the clock time with the printing interval flashing. TIME INTV Any interval can be selected from 1, 2, 5, 10, 15, 30, 60, 120 or 180 minutes by using the UP and the DOWN arrow keys. CAL CON Once the desired interval is selected press the TIME key once to set it. TIME The left digits of the display flash showing the hour.
The right hand side of the display showing the minutes will flash. TIME INTV Use the UP or the DOWN key to select the minute. CAL CON Press the ALT and the TIME keys simultaneously to leave this mode. ALT CAL RANGE TIME Your clock, date and printing interval are now set and stored in memory even when the display is switched off. TO VIEW DATE/TIME/PH/TEMPERATURE (FOR HI92240 ONLY) To view time press the TIME key. This also displays the selected interval time.
To view temperature when in pH mode, press the RANGE key. °C RANGE If the “25.0” value with the flashing “°C” symbol is shown, it indicates that the temperature probe is not connected. °C Note: the pH value will be displayed without any symbol. The temperature value will be displayed together with the °C symbol. TO VIEW PH / TEMPERATURE (WITH HI9224 ONLY) When the instrument is turned on the display will be in pH measurement mode. To view temperature simply press the RANGE key. If the “25.
TAKING PH MEASUREMENTS To take pH measurements, simply submerge the bottom 4 cm (1½") of the electrode and the temperature probe in the reading solution to be 4 cm tested, stir gently and allow for the electrode to (1½") adjust and stabilize. For greatest accuracy, it is recommended to calibrate the meter regularly (see page 13). The pH reading of any sample is directly effected by temperature. In order for the meter to measure the pH accurately, it must know the temperature.
pH CALIBRATION PROCEDURE For greatest accuracy, it is recommended that the instrument is calibrated frequently. For a faster procedure, it is possible to calibrate at 1 point (pH 7.01), but it is always a good practice to calibrate at 2 points. Due to electrode conditioning time the electrode must be kept immersed a few seconds to stabilize. The meters are equipped with a stability indicator and the user will be guided step by step with easy indications on the display during the pH calibration.
5. “4” can be changed to “10” (indicating pH 10.01) by pressing BUFF button. If you are measuring acid samples (pH 7 or less) use the pH 4.01 buffer (HI7004). For alkaline solutions (pH 7 or greater) use pH 10.01 (HI7010). 6. Rinse the electrode with clean water or some pH4.01 (or 10.01) solution. Dip the bottom 4 cm (1½") of the electrode in a beaker containing the second buffer. BUFF HI 7004 4 cm (1½") 7.
3. When the “7” stops blinking, the calibration can be confirmed. Wait 30 seconds and press the CON key to confirm the first buffer. If CON wrong solution or electrode has been used or if the buffer is out of specifications the “7” symbol will not stop blinking to alert the user. 4. If everything is satisfactory the instrument will print a set of data (see page 16) and will expect the second buffer at pH 4.01 or pH 10.01.
CALIBRATION PRINTOUT (FOR HI92240 ONLY) During calibration, the characteristics of the electrode will be printed to record the electrode's performance over time. After the first point calibration a first set of 10-01-96 data will be printed. This will consist of: *02.13 date, time, the temperature compensated pH 7.04 -0.05 pH pH buffer solution value and the offset characteristic of the electrode in pH units. The offset pH value should be between ±0.50pH. If values are higher than +0.50 or lower than -0.
PRINTING / RECORDING WITH HI 9224 To print the measured values press the PRINT key. The printout provides the following information: a - Running sample numbers a b - Total accumulative time c - pH value d - Temperature in Degrees Centigrade. PRINT 0001 b c d *07.25 4.25 25.0 RECORDING MODE (PROGRAMMED PRINTOUTS ) Press the LOG key to enter the recording mode. The log number and page number will appear for a few seconds on the display to indicate the LOG current operational mode.
Note: If the PRINT key is pressed while still in recording mode, a printout is produced without affecting the running number. PRINT TO STOP RECORDING In order to quit the recording mode, press the ON/OFF key. The running log number can be reset by simply removing the batteries.
PRINTING / LOGGING WITH HI 92240 To print the measured values shown on display, press the PRINT key. This function can be activated in normal operational mode as well as PRINT during logging and scanning data on display (see below). When in measurement mode, the printout provides the following information: a - running sample number b 01-07-95 b - date (DD-MM-YY) c a 0026 04.03 d 7.07 pH 17.
To log without printing press the ALT and the PAPER keys at the same time and the "LOG" symbol on display will start to blink. Press ALT and PAPER again to resume logging with printing. PRINT PAPER LOG ALT CAL After approximately 5 minutes the display will switch off but the logging function remains active. While logging, during the sleep mode, the display will periodically flash on. This is a normal indication that the meter is in the logging mode and is currently logging readings.
print a complete set of data and the "LOG" symbol will appear on the bottom left hand side of the display. If no key is pressed, the display goes blank after about 5 minutes. During printing, the display shows the time, interval and the “LOG” symbol. LOG To reactivate the display press the RANGE key.
data at different time (see above). • It is possible to insert a new paper roll during logging session (see page 27) • Once in the logging mode, the interval cannot be changed. Exit the logging mode first (pressing the ALT and the LOG keys) before setting the new interval. • If the PRINT key is pressed while in logging mode, a printout is produced without affecting the running sample number.
Press the CAL key and the time will be displayed. TIME CAL Press the CAL key and the temperature will be displayed. °C CAL Press the CAL key and the pH value will be displayed. pH CAL Continue pressing the CAL key to display one by one all the memorized data of the same log in the above sequence i.e. time, temperature, pH value. CAL Press the CON key to revert back to sampling time and scroll back through the samples. CON To exit from the recall mode press the LOG key.
TO PRINT STORED DATA Having selected a log number by using ALT and CON keys, as detailed in the chapter "TO SCAN STORED DATA ON DISPLAY" you ALT can print all or part of that log section by using the ALT and PRINT keys. The printer will then start to print the logged section beginning with the selected sample number without altering the content of the memory. Note: It is always possible to print only the sample shown on the display by pressing the PRINT key.
DATA TRANSFER TO PC HI92240 contains infrared emitting circuitry. Set the meter to TIME mode and simply place your data-logger on a HI9200 Infrared Transmitter (ensuring that the two infrared LEDs are placed on top of each other) and the memory can then be downloaded to your PC through the HI9200's RS232 port. During the data transfer the instrument displays the message "r 232".
FAULT FUNCTIONS HI 9224 and HI 92240 are factory programmed to automatically diagnose a fault. This is displayed with error codes on the LCD. Error codes: PEr0, PEr1, PEr2 = Short circuit on the system, the meter should be returned for repair (see Warranty section). PEr3 = Printer mechanism fault - repair needed (see Warranty section). PEr4 = Printer clutch jammed - reset the printer (see page 28). PEr9 = Printer jammed - reset the printer (see page 28).
PRINTER MAINTENANCE TO CHANGE THE INK CARTRIDGE When printouts become faint, it might be necessary to change the ink cartridge. Contact your Hanna authorized center. TO INSERT THE PAPER ROLL The HI9224 and HI92240 use plain paper rolls 38 mm width. To insert a new roll is very easy. Open the paper cover pulling it gently. Take the cylinder away. Insert the paper edge in the printer slot and feed the printer by pressing the PAPER key.
Allow about 5 cm (2") to exit from the printer and replace the paper cover. TO RESET PRINTER Take the battery cover off by removing the screws. Using a pencil press the black button. This will reset the printing mechanism. Before replacing the battery cover investigate the cause of the printer jam (e.g. the paper caught under the cover and prevented printer from advancing paper feed). Replace the battery cover and secure screws. 28 - 1.5V + 1.5V - - 1.5V + + 1.
ELECTRODE CONDITIONING AND MAINTENANCE Reference Filling Hole Reference Filling Hole Sensitive Wire Reference Wire Reference Wire Sensitive Wire Reference Junction Reference Junction Glass Bulb Glass Bulb Plastic Body pH Electrode Glass Body pH Electrode PREPARATION Remove the 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 form inside the glass bulb.
For AmpHel electrodes: If the electrode does not respond to pH changes, the battery is run down and the electrode should be replaced. MEASUREMENT Rinse the electrode tip with distilled water. Immerse the tip (4 cm /1½") in the sample and stir gently for approx. 30 seconds. For a faster response and to avoid cross contamination of the samples, rinse the electrode tip with a few drops of the solution to be tested, before taking measurements.
Solution for 15 minutes. - Inorganic Soak in Hanna HI7074 or HI8074 Inorganic Cleaning Solution for 15 minutes. - Oil/grease Rinse with Hanna HI7077 or HI8077 Oil and Fat Cleaning Solution.
BATTERY REPLACEMENT When the batteries are run down "LOBAT" is displayed on the Liquid Crystal Display to warn the user. Battery replacement must only take place in a non hazardous area using 1.5V alkaline AA type batteries . In order to replace run down batteries, simply remove the two screws on the rear cover of the instrument and replace the four 1.5V AA batteries with new ones, paying attention to the correct polarity. pH LO BAT - 1.5V + 1.5V - - 1.5V + + 1.
TEMPERATURE-RESISTANCE CORRELATION FOR HANNA PH SENSITIVE GLASS The resistance of glass electrodes partially depends on the temperature. The lower the temperature, the higher the resistance. It takes longer 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 10°C.
High concentrations of sodium ions interfere with readings in alkaline solutions; the pH at which the interference starts to be significant depends upon the composition of the glass. This interference is the alkaline error and causes the pH to be underestimated. Hanna's glass formulations have the indicated characteristics. Alkaline Error Sodium Ion Correction for the Glass at 20-25°C Concentration pH 13.00 13.50 14.00 12.50 13.00 13.50 14.00 0.1 Mol L Na -1 + 1.0 Mol L-1 Na+ 34 Error 0.10 0.14 0.
ACCESSORIES pH CALIBRATION SOLUTIONS HI 70004P HI 70007P HI 70010P HI 7004L HI 7006L HI 7007L HI 7009L HI 7010L pH 4.01 Buffer Sachets, 20mL, 25 pcs pH 7.01 Buffer Sachets, 20mL, 25 pcs pH 10.01 Buffer Sachets, 20mL, 25 pcs pH 4.01 Buffer Solution, 460 mL pH 6.86 Buffer Solution, 460 mL pH 7.01 Buffer Solution, 460 mL pH 9.18 Buffer Solution, 460 mL pH 10.01 Buffer Sol., 460 mL pH CALIBRATION SOLUTIONS IN FDA APPROVED BOTTLES HI 8004L HI 8006L HI 8007L HI 8009L HI 8010L pH 4.
HI 7082 3.5M KCl Electrolyte, 4x50 mL, for double junction electrodes REFILL ELECTROLYTE SOLUTIONS IN FDA APPROVED BOTTLES HI 8071 3.5M KCl + AgCl Electrolyte, 4x50mL, for single junction electrodes 1M KNO3 Electrolyte, 4x50 mL 3.5M KCl Electrolyte, 4x50 mL, for double junction electrodes HI 8072 HI 8082 pH ELECTRODES All electrodes part numbers ending in B are supplied with a BNC connector and 1 m (3.3') cable. HI 1043B Glass-body, double junction, refillable, combination pH electrode.
HI 1131B Glass-body, single junction, refillable, combination pH electrode. Use: general purpose. 9.5mm DIA 0.37" 12 mm 0.5" HI 1131 120 mm 4.7" "S" VERSION HI 1330B Glass-body, semimicro, single junction, refillable, combination pH electrode. Use: laboratory, vials. 5mm DIA 0.2" 5mm 0.2" HI 1330 120 mm 4.7" "S" VERSION HI 1331B Glass-body, semimicro, single junction, refillable, combination pH electrode. Use: flasks. 8 mm 0.3" 7.5mm DIA 0.29" HI 1331 210 mm 8.
HI 1332B Plastic-body (Ultem®), double junction, refillable, combination pH electrode. Use: general purpose. 12 mm 0.5" HI 1332 "S" VERSION 120 mm 4.7" FC 100B Plastic-body (Kynar®), double junction, refillable, combination pH electrode. Use: general purpose for food industry. 12 mm 0.5" FC 100 120 mm 4.7" FC 200B Plastic-body (Kynar®), open junction, conic, Viscolene, non-refillable, combination pH electrode. Use: meat & cheese. 6 mm 0.25" FC 200 75 mm 2.
FC 911B Plastic-body (Kynar®), double junction, refillable with built-in amplifier, combination pH electrode. Use: very high humidity. 12 mm 0.5" FC 911 110 mm 4.3" HI 1413B Glass-body, single junction, flat tip, Viscolene, non-refillable, combination pH electrode. Use: surface measurement. 12 mm 0.5" HI 1413 110 mm 4.3" EXTENSION CABLES FOR SCREW-TYPE ELECTRODES ONLY (SCREW TO BNC CONNECTOR): HI7855/1 HI7855/3 HI7855/5 HI7855/10 HI7855/15 Extension cable 1m (3.3') long Extension cable 3m (9.
POWER UNITS: HI710005 HI710006 Voltage adapter from 115 VAC to 12 VDC Voltage adapter from 230 VAC to 12 VDC OTHER ACCESSORIES HI 710031 HI 710034 HI 710035 HI 721308 HI 76405 HI 7669/2W HI 8427 Rugged carrying case Plain Paper Spare Rolls (10 pcs) Spare Ink Cartridge (1 pc) 1.5V AA batteries (10 pcs) Electrode holder Temperature probe with 1 m (3.3') screened cable pH and ORP electrode simulator with 1 m (3.
ELECTRODE APPLICATION REFERENCE GUIDE Application 1. Aquarium 2. Bath-water 3. Beer 4. Bread 5. Cheese 6. Dairy products 7. Dirty water 8. Emulsions 9. Environment 10. Flasks 11. Food industry general use 12. Fruit 13. Fruit juices, organic 14. Galvanizing waste solution 15. Heavy-duty applications 16. High purity water 17. Horticulture 18. In-line applications 19. Laboratory general use 20. 21. 22. 23. 24. 25. 26. 27. 28. 29. 30. 31. 32. 33. 34. 35. 36. 37. 38. 39. 40. 41. 42.
WARRANTY All Hanna Instruments meters are warranted 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 warranted for a period of six months. This warranty is limited to repair or replacement free of charge. Damages due to accident, misuse, tampering or lack of prescribed maintenance are not covered. If service is required, contact the dealer from whom you purchased the instrument.
CE DECLARATION OF CONFORMITY DECLARATION OF CONFORMITY We Hanna Instruments Srl V.le delle industrie 12 35010 Ronchi di Villafranca (PD) ITALY herewith certify that the pH meters HI 9224 HI 92240 have been tested and found to be in compliance with the following regulations: IEC 801-2 IEC 801-3 IEC 801-4 EN 55022 Electrostatic Discharge RF Radiated Fast Transient Radiated, Class B Date of Issue: 30-11-1995 D.Volpato - Engineering Manager On behalf of Hanna Instruments S.r.l.
PRINTED IN PORTUGAL MANPHPRNR2 07/98 h t t p : / / w w w . h a n n a i n s t .
