Instruction Manual HI 121 & HI 123 pH/mV/ISE/Temperature Bench Meters with Calibration Check ON OFF HI 123 CAL pH / mV / ISE Meter CFM CHANNEL LOG Calibration Check w w w. h a n n a i n s t .
Dear Customer, Thank you for choosing a Hanna Instruments product. Please read this instruction manual carefully before using the instruments. This manual will provide you with the necessary information for correct use of the instruments, as well as a precise idea of their versatility. If you need additional technical information, do not hesitate to e-mail us at tech@hannainst.com or turn to the back cover for our worldwide contact list. These instruments are in compliance with 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 Service Center. Each instrument is supplied with: • HI 1131P Glass-body Combination pH Electrode • HI 7662-T Temperature probe • pH 4.01 & 7.
FUNCTIONAL DESCRIPTION HI 121 Front Panel Electrode Condition Primary LCD Secondary LCD Electrode Response ON OFF HI 121 AutoHOLD GLP pH / mV / ISE Meter SET CAL CFM CHANNEL AutoLOG MODE pH mV RelmV LOG RCL Calibration Check Ion Reso NUM 2 4 1 3 Rear Panel REF ISE 5 pH/ORP 7 6 1) 2) 3) 4) 5) 6) 7) 8) 9) 10) 11) PIN TEMP POWER 9 8 RS232 11 10 Left Keyboard ON switch OFF switch Right Keyboard Reference input socket for ISE channel BNC electrode connector for ISE channel Pin
FUNCTIONAL DESCRIPTION HI 123 Front Panel Paper Roll Electrode Condition Primary LCD Secondary LCD Electrode Response ON OFF HI 123 AutoHOLD Print pH / mV / ISE Meter Paper CAL CFM CHANNEL AutoLOG pH mV RelmV Ion Reso NUM LOG Calibration Check 2 4 1 3 Rear Panel REF ISE 5 pH/ORP 7 6 1) 2) 3) 4) 5) 6) 7) 8) 9) 10) 11) 12) PIN TEMP POWER 9 8 RS232 11 10 12 Left Keyboard ON switch OFF switch Right Keyboard Reference input socket for ISE channel BNC electrode connector for I
HI 121 KEYBOARD ON THE LEFT 1 3 2 AutoHOLD GLP SET 6 4 AutoLOG 9 5 7 pH mV ISE RelmV Resolution 10 11 8 NUM 12 Shortcuts to alternate functions 1) AutoHOLD key, to freeze the first stable reading on the LCD. 2) GLP key, to display Good Laboratory Practice Information. 3) SET key, to enter/exit SETUP mode.
HI 121 MAIN KEYBOARD ON THE RIGHT HI 121 pH / mV / ISE Meter 3 1 2 CAL CFM CHANNEL 5 6 4 MODE 7 9 8 LOG RCL Calibration Check 1) CAL key, to enter and exit/escape calibration mode. SET key (second function), to enter/exit SETUP mode. 2) CFM key, to confirm different values. GLP key (second function), to display Good Laboratory Practice Information. 3) CHANNEL key, to select the measurement input channel, pH or ISE. CLR key (second function), to clear calibration or logged data.
HI 123 KEYBOARD ON THE LEFT 1 3 2 AutoHOLD Print Paper 6 4 AutoLOG 9 5 7 pH mV ISE RelmV Resolution 10 11 8 NUM 12 Shortcuts to alternate functions 1) AutoHOLD key, to freeze the first stable reading on the LCD. 2) Print key, to obtain a printout or to cancel printing. 3) Paper key, to pull out the paper.
HI 123 MAIN KEYBOARD ON THE RIGHT HI 123 pH / mV / ISE Meter 3 1 2 CAL CFM CHANNEL 5 6 4 7 9 8 LOG Calibration Check 1) CAL key, to enter and exit/escape calibration mode. SET key (second function), to enter/exit SETUP mode. 2) CFM key, to confirm different values. GLP key (second function), to display Good Laboratory Practice Information. 3) CHANNEL key, to select the measurement input channel, pH or ISE. CLR key (second function), to clear calibration or logged data.
HI 121 AND HI 123 SPECIFICATIONS –2.00 to 16.00 pH –2.000 to 16.000 pH ±999.9 mV ±2000 mV RANGE 0.001 to 19999 ppm –20.0 to 120.0 ºC (–4.0 to 248.0 ºF) 0.01 pH 0.001 pH 0.1 mV 1 mV RE SOL UTION 0.001 ppm (from 0.001 to 9.999) 0.01 ppm (from 10.00 to 99.99) 0.1 ppm (from 100.0 to 999.9) 1 ppm (from 1000 to 19999) 0.1 ºC (0.1 ºF) ±0.01 pH ±0.002 pH ACCURACY @ 20°C / 68°F ±0.2 mV (±699.9 mV) ±0.5 mV (±999.9 mV) ±1 mV (±2000 mV) ±0.5% f.s. ±0.4 ºC (±0.
OPERATIONAL GUIDE POWER CONNECTION Plug the 12 VDC adapter into the power supply socket. Notes: • These instruments use non volatile memory to retain the pH, mV, Ion, temperature calibrations and all other settings, even when unplugged. • Make sure a fuse protects the main line.
• The instrument automatically defaults to pH or mV measurement mode, if a HANNA P type pH or ORP electrode is detected. • If no HANNA P type electrode is detected, the instrument starts in the same range as it was at power off. pH MEASUREMENTS Make sure the instrument has been calibrated before taking pH measurements. • Press CHANNEL to enter pH channel. Note: To change pH resolution, press MODE or simply Resolution from the left keyboard.
The temperature can be adjusted with the ARROW keys or the numerical keypad (from –20.0 ºC to 120.0 ºC or from –4.0 ºF to 248.0 ºF). Press NUM to change the temperature value with the numerical keys. The “2nd” tag will blink. Press CLR or 2nd then CLR if you want to delete digits of the displayed value. The remaining digits will shift to right. Introduce the desired value. If the value is out of temperature range, a long beep will be heard.
Note: Press or from the left keypad to toggle between temperature and absolute mV reading on the secondary LCD. The Relative mV reading is equal to the difference between the absolute mV input value and relative mV offset established in the relative mV calibration. ION MEASUREMENTS To measure Ion concentration, an independent input channel is provided. • Press CHANNEL or simply ISE from the left keyboard to select ISE channel.
pH CALIBRATION Calibrate the instrument often, especially if high accuracy is required. The instrument should be recalibrated: • Whenever the pH electrode is replaced. • At least once a week. • After testing aggressive chemicals. • If “CAL DUE” tags are blinking during measurement. • If “OUT CAL RANGE” message blinks during pH measurement (the measurement range is not covered by current calibration). PREPARATION Pour small quantities of the buffer solutions into clean beakers.
All new calibrations will override existing stored calibration data, in a ±0.2 pH window, at these calibration points. The slopes adjacent to the calibration points will be reevaluated. If the new calibration point has no correspondence in the existing stored calibration data, it is added to it if this is not full, or the instrument will ask which buffer will be replaced by the current buffer.
• The “ ” tag will blink on the LCD until the reading is stable. • When the reading is stable and close to the selected buffer, “CFM” tag blinks. • Press CFM to confirm calibration. • The calibrated value is then displayed on the primary CFM LCD and the secondary LCD will display the second expected buffer value, together with “CAL”, “Cal Point 2” and “7.01” tags and the corresponding buffer tag blinking.
• After the third calibration point is confirmed, immerse the pH electrode and the temperature probe approximately 4 cm (1½”) into the fourth 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. • The “ ” tag will blink on the LCD until the reading is stable. • When the reading is stable and close to the selected buffer, “CFM” tag blinks. • Press CFM to confirm calibration.
If the existing stored calibration is full (five calibration points), the instrument asks which buffer will be replaced by current buffer. Press the ARROW keys to select another buffer to be replaced. Press CFM to confirm the buffer that will be replaced. Press CAL to leave calibration without replacing. Note: The replaced buffer is not removed from calibration list and it can be selected for the next calibration points.
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 result measurement errors. ERROR MESSAGES Error messages appear if one or all of the calibration parameters are out of accepted windows.
CLEAN ELECTRODE This warning message appears in order to alert the user that some dirt or deposits could be on the electrode. Refer to the electrode Cleaning Procedure. This ensures the removal of film, dirt or deposits on the glass bulb and reference junction. CONTAMINATED BUFFER This warning message appears in order to alert that the buffer could be contaminated. Refresh your buffer and continue the calibration procedure.
The electrode response is evaluated only when calibration has been performed using pH 7.01 or pH 6.86, pH 4.01 and pH 10.01 or pH 9.18 buffers. When the instrument cannot evaluate the electrode response or pH 1.68/12.45 buffer was 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 the electrode response is very slow, the first response segment will blink.
ISE CALIBRATION For greatest accuracy, it is recommended to calibrate the instrument frequently. Due to electrode conditioning time, the electrode must be kept immersed a few seconds to stabilize. The user will be guided step by step during calibration with easy to follow tags on the display. This will make the calibration a simple and error-free procedure. PREPARATION In SETUP menu, select the proper ion charge.
• The calibrated value will be displayed on the primary LCD and the second expected standard solution on the secondary LCD. Note: The instrument will automatically skip the standard used for the first point. • After the first calibration point is confirmed, immerse the ISE electrode approximately 4 cm (1½”) into the second standard solution. • If necessary, press the ARROW keys to select a different standard solution. • The “ ” tag will blink on the LCD until the reading is stable.
GOOD LABORATORY PRACTICE (GLP) GLP is a set of functions that allows storage and retrival of data regarding the maintenance and status of the electrode. All data regarding pH, Rel mV and ISE calibration is stored for the user to review when necessary. CALIBRATION ALARM TIME OUT For pH calibration, all the instruments allow the user to set the number of days before the next required pH calibration. This value can be set from 1 to 7 days. The default setting is OFF (disabled).
• The pH calibration offset. • The pH calibration slope (the GLP slope is the average of the calibration slopes; the percentage is referred to the ideal value of 59.16 mV/pH). • The calibration buffers in calibrating order, with the corresponding warnings.
The fourth pH calibration buffer: The fifth pH calibration buffer: Notes: • The “OLd” message displayed beside the pH value means that this buffer was not used during last calibration. Press 2nd then SET key if you want to see calibration date (or time, if old calibration was performed in the same day with current calibration). • Each calibration buffer is displayed with the resolution from calibration moment.
LAST ISE CALIBRATION DATA Last ISE calibration data is stored automatically after a successful calibration. To view the ISE calibration data, press 2nd then GLP key while in ISE measurement mode. The instrument will display the date (yyyy.mm.dd) of the last calibration as in pH GLP mode. Press the ARROW keys to view the next logged calibration parameter (pressing the key): • The ISE calibration time as in pH GLP mode.
LAST RELATIVE mV CALIBRATION DATA Last Relative mV calibration data is stored automatically after a successful calibration. To view the Relative mV calibration data, press 2nd then GLP key or simply GLP from the left keyboard (HI 121) while in Relative mV measurement mode. The instrument will display the Relative mV GLP information. • The date (yyyy.mm.dd) of the last calibration as in pH GLP mode.
SETUP Setup mode allows viewing and modifying the following parameters: • Calibration Alarm Time Out (pH channel only) • One-point calibration behaviour (pH channel only) • Custom buffer 1 (pH channel only) • Custom buffer 2 (pH channel only) • Ion charge (ISE channel only) • Alarm High Limit (both channels) • Alarm Low Limit (both channels) • AutoLOG Start Condition (both channels) • AutoLOG End Condition (both channels) • AutoLOG Interval (both channels) • Temperature Unit • Current Date (yyyy.mm.
If there is another item to be set (e.g. minutes), press MODE or from the left keyboard. The other item will start blinking. / Press the ARROW keys to change the displayed value or simply use the numerical keys for all numerical parameters. Press CFM to confirm or CAL to escape. Press the ARROW keys to select the next/previous parameter. Press 2nd then SET key, or simply SET from the left keyboard (HI 121 only) to exit SETUP menu at any time. The instrument asks for printing a Setup Report (HI 123 only).
Notes: • The custom buffers can be set only with 0.001 pH resolution. If 0.01 pH resolution is selected during calibration, the displayed custom buffer value will be a rounded one. • For calibration alarm time out, custom buffers, alarm limits, start and stop condition items, if pressing CLR or 2nd then CLR while in changing mode, the selected item will be set to default.
When in normal measurement mode: • If only “AL.LO” item is set, the instrument will beep when the reading is below alarm low value. • If only “AL.HI” item is set, the instrument will beep when the reading is above alarm high value. • If both alarms are set, the instrument will beep when the reading is above alarm high value or below alarm low value. Note: If “AL.HI” item is less than or equal to “AL.LO” item, “WRONG” tag will blink. AutoLOG SETUP AutoLOG Start Condition • Select the “Strt” item.
The AutoLOG will be started in according with “Strt” item, from button (“btn”) by pressing AutoLOG or when the starting time condition is reached. The AutoLOG will stop in according with the selected option for “AutoLOG End Condition” item or when AutoLOG is pressed. LOGGING This feature allows the user to log pH and Rel mV or ISE and Rel mV measurements, together with temperature automatically. All logged data can be transferred to a PC through the RS232 port.
If the LOG space is full, “FULL LOC” message will be displayed on the LCD for a few seconds with “LOG” tag blinking, and then ”FrEE 0” message. The instrument returns to normal measurement mode. AutoLOGGING The setable AutoLOG modes make these instruments very useful in a wide range of applications: • Start at button or set time/date; stop after a set duration. • Start at button or set time/date; stop when a set value is reached. • Start at button or set time/date; stop when a set sample number is reached.
To stop autologging, press 2nd then AutoLOG key again, or simply TEMPERATURE CALIBRATION AutoLOG from the left keyboard. (for technical personnel only) The instrument will display for a few seconds the lot number on the primary LCD and the sample number on the secondary LCD, together with “AutoLOG” tag, and will return to measurement mode. Notes: • If printer is ON, each logged sample is printed only if the AutoLOG interval is at least 30 s (HI 123 only).
• If RCL mode was invoked while the instrument was in ISE channel: the last ppm or Rel mV memorized reading on the primary LCD and the lot number on the secondary LCD. Note: If LOG mode was invoked while the instrument was in mV/Relative mV measurement range, the corresponding memorized reading will be displayed on the primary LCD, along with “RelmV” tag. Press 2nd then SET key while in RECALL mode and the instrument will toggle between the lot or record number on the secondary LCD.
Notes: • The “LdM” message on the secondary LCD shows that data has been stored in Log on demand mode. • Pressing 2nd then SET key, the instrument toggles between lot number, record number (Log on demand only) or all lots. • Press CLR or 2nd then CLR to delete the selected lot/record or all lots. Note: Positions remain free in the Log on demand lot by deleting the last logged samples or all the lot.
PRINTING (HI 123 only) A complete set of information based on the measured, set or recorded data can be printed. Data can be printed on demand (for current reading in measurement mode, GLP and SETUP modes) by pressing 2nd then Print key, or simply Print from the left keyboard, or automatic (for AutoLOG and Log on demand modes). Automatic data printing is possible in AutoLOG mode only if the printer is ON and the AutoLOG interval is greater than 30 seconds.
• For ISE range: GLP Ion Instr ID 0002 Date 2004/10/15 Time 14:25:05 Slope -59.3 Ion Charge 1 Cal Buffers ppm 0.1 mV -312.8 ppm 100 mV -134.
• Press CFM to print the SETUP REPORT or CAL to escape without printing. When in SETUP mode, if pressing CAL, then Print for a chosen parameter, a help printout will come out, providing the following information (e.g.
• For AutoLOG mode: START AUTOLOG Instr ID 0002 Lot L03 Date 2004/10/15 Time 18:05:01 Interval 00:30 Slope 99.7% Offset 0.1mV Sample No pH mV °C 1 7.02 -0.5 25.0 Sample No pH mV °C 2 7.01 -0.2 25.0 Sample No pH mV °C 3 6.97 1.9 24.9 STOP AUTOLOG Date 2004/10/15 Time 18:06:51 Note: If selecting a different printing language, all data will be printed in the selected language.
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. For an accurate recalibration, contact your dealer or the nearest Hanna Customer Service Center, or follow the instructions below.
• Press CFM to confirm. The instrument returns to measurement mode. Note: If the reading is not close to the selected calibration point, “WRONG” tag will blink. Change the temperature probe and restart calibration. CFM mV 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 measurements are inaccurate, mV recalibration should be performed.
PC INTERFACE Data transmission from the instrument to the PC can be done with the HI 92000 Windows® compatible software (optional). HI 92000 also offers graphing and on-line help feature. Data can be exported to the most popular spreadsheet programs for further analysis. To connect your instrument to a PC, use the optional Hanna HI 920010 cable connector. Make sure that your instrument is switched off and plug one connector to the instrument RS232C socket and the other to the serial port of your PC.
SET PRT CLR OFF AHD CHR xx Is equivalent to pressing SET Is equivalent to pressing PRINT (HI 123 only) Is equivalent to pressing CLR Is equivalent to pressing OFF Is equivalent to pressing AutoHOLD Change the instrument range according with the parameter value (xx): • xx=00 pH range/0.001 resolution, pH channel • xx=01 pH range/0.
/MLPxxx /MLIxxx ?DM LODPxxx LODIxxx LODPALL LODIALL Notes: • • • • • • Selects lot on pH channel. Selects lot on ISE channel. Downloads the selected AutoLOG. Requests the xxxth pH record logged data. Requests the xxxth ISE record logged data. Requests all pH Log on demand. Requests all ISE Log on demand. “Err8” is sent if the instrument is not in measurement mode. “Err7” is sent if a different range is requested during AutoLOGGING mode (for CHR xx command only).
pH BUFFER TEMPERATURE DEPENDENCE 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. TEMP pH BUFFERS ºC ºF 1.679 4.010 6.862 7.010 9.177 10.010 12.454 0 32 1.670 4.007 6.982 7.130 9.459 10.316 13.379 5 41 1.670 4.002 6.949 7.098 9.391 10.245 13.178 10 50 1.671 4.
ELECTRODE CONDITIONING & MAINTENANCE PREPARATION PROCEDURE Remove the protective cap of the pH electrode. 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. For faster response, unscrew the fill hole screw during measurements. For AmpHel® electrodes: If the electrode does not respond to pH changes, the battery run down and the electrode should be replaced.
pH 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. • Inorganic Soak in Hanna HI 7074 Inorganic Cleaning Solution for 15 minutes. • Oil/grease Rinse with Hanna HI 7077 or HI 8077 Oil and Fat Cleaning Solution.
PRINTER MAINTENANCE (HI 123 only) HI 123 instrument uses plain paper rolls 44 mm width. To insert a new paper roll, follow the procedure below: • For an easier insertion, cut the paper edge as shown in the next figure: CUT • Put the paper roll on the paper holder attached to the printer. • Insert the paper edge into the printer slot as shown below: INSERT • Simply press Paper from the left keyboard to feed the printer. Allow about 5 cm (2”) to exit from the printer.
TROUBLESHOOTING GUIDE SYMPTOMS Slow response/excessive drift. PROBLEM D irty pH electrode. Readings fluctuate up Clogged/dirty junction. and down (noise). Low electrolyte level (refillable electrodes only). The display shows blinking dashes during pH measurements. SOLUTION Soak the electrode tip in HI 7061 solution for 30 minutes and then clean the electrode. Clean the electrode. Refill with fresh solution (for refillable electrodes only). Out of range in the pH Make sure the pH scale.
TROUBLESHOOTING GUIDE (cont.) SYMPTOMS PROBLEM SOLUTION The meter displays empty E lectrode Response scale. Not enough data available to evaluate the response time. Repeat calibration more carefully. At startup the meter displays all LCD permanently. One of the keys is blocked. Check the keyboard or contact the vendor. Long beep heard Key without function in D on't press keys without function in current mode. when pressing a key. current mode. E nd of range reached with the ARROW keys.
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 ºC (77 ºF). Since the resistance of the pH electrode is in the range of 50 – 200 Mohm, the current across the membrane is in the pico Ampere range.
ACCESSORIES pH BUFFER SOLUTIONS HI 5016 pH 1.68 Buffer Solution, 500 mL bottle HI 5004 pH 4.01 Buffer Solution, 500 mL bottle HI 5068 pH 6.86 Buffer Solution, 500 mL bottle HI 5007 pH 7.01 Buffer Solution, 500 mL bottle HI 5091 pH 9.18 Buffer Solution, 500 mL bottle HI 5010 pH 10.01 Buffer Solution, 500 mL bottle HI 5124 pH 12.45 Buffer Solution, 500 mL bottle HI 6016 pH 1.679 Buffer Solution, 500 mL bottle HI 6004 pH 4.010 Buffer Solution, 500 mL bottle HI 6068 pH 6.
ORP PRETREATMENT SOLUTIONS HI 7091L Reducing Pretreatment Solution, 500 mL bottle HI 7092L Oxidizing Pretreatment Solution, 500 mL bottle pH ELECTRODES All electrodes with code ending with P are supplied with BNC & pin connectors and 1 m (3.3') cable, as shown below: HI 1043P Glass-body, double junction, refillable, combination pH electrode. Use: strong acid/alkali. HI 1053P Glass-body, triple ceramic, conic shape, refillable, combination pH electrode. Use: emulsions.
HI 1330P Glass-body, semimicro, single junction, refillable, combination pH electrode. Use: laboratory, vials. HI 1332P Plastic-body (Ultem®), double junction, refillable, combination pH electrode. Use: general purpose. ORP ELECTRODES HI 3131P Glass-body, refillable, combination platinum ORP electrode. Use: titration. Consult the Hanna General Catalog for more electrodes with BNC and pin connectors.
RECOMMENDATIONS FOR USERS Before using these products, make sure they are entirely suitable for the environment in which they are used. Operation of these instruments in residential areas could cause unacceptable interferences to radio and TV equipment, requiring the operator to follow all necessary steps to correct interferences. The glass bulb at the end of the pH electrode is sensitive to electrostatic discharges. Avoid touching this glass bulb at all times.
SALES AND TECHNICAL SERVICE CONTACTS Australia: Tel. (03) 9769.0666 • Fax (03) 9769.0699 China: Tel. (10) 88570068 • Fax (10) 88570060 Egypt: Tel. & Fax (02) 2758.683 Germany: Tel. (07851) 9129-0 • Fax (07851) 9129-99 Greece: Tel. (210) 823.5192 • Fax (210) 884.0210 Indonesia: Tel. (21) 4584.2941 • Fax (21) 4584.2942 Japan: Tel. (03) 3258.9565 • Fax (03) 3258.9567 Korea: Tel. (02) 2278.5147 • Fax (02) 2264.1729 Malaysia: Tel. (603) 5638.9940 • Fax (603) 5638.9829 Singapore: Tel. 6296.
