Instruction Manual HI 3220 HI 3221 HI 3222 Calibration Check pH/mV/ISE/Temperature Bench Meters 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 Customer Service Center. Each instrument is supplied with: • HI 1131B Glass body combination double-junction pH electrode • HI 7662-T stainless steel Temperature Probe with 1 m (3.3') Cable • pH 4.01 & 7.
Moreover, they offer an extended temperature range from –20 to 120 ºC (–4 to 248 ºF), using HI 7662-T interchangeable temperature probes. These instruments can also measure with ORP electrodes, thanks to their capability to measure mV with a resolution up to 0.1 mV. HI 3221 and HI 3222 can also measure with ISE electrodes on ppm scale.
HI 3220, HI 3221 FUNCTIONAL DESCRIPTION Front view 1) Liquid Crystal Display (LCD) 2) Function keys 3) MENU key, to change the function key at the bottom of the display / keys to manually increase/decrease the parameters or to scroll between 4) the parameter list 5) SETUP key, to enter SETUP mode 6) RANGE key, to switch between pH and mV range (HI 3220); pH, mV and ISE range (HI 3221) 7) HELP key to enter/exit contextual help 8) CAL key, to enter calibration mode 9) ESC to escape the current mode, exit cal
HI 3222 FUNCTIONAL DESCRIPTION Front view 1) Liquid Crystal Display (LCD) 2) Function keys 3) CHANNEL keys to toggle between channels (Ch1 - pH, Ch2 - ISE) / keys to manually increase/decrease the parameters or to scroll between 4) the parameter list 5) MENU key, to change the function key at the bottom of the display 6) RANGE key, to switch between pH and mV range (Ch1); ISE and mV range (Ch2) 7) HELP key to enter/exit contextual help 8) CAL key, to enter calibration mode 9) ESC to escape the current mode
Rear view 10) 11) 12) 13) 14) 15) 16) 17) 18) ON/OFF switch. Power adaptor socket. USB connector. BNC electrode connector for channel two (HI 3222 only). Temperature socket for channel two (HI 3222 only). Reference electrode connector for channel two (HI 3222 only). BNC electrode connector for channel one. Temperature socket for channel one. Reference electrode connector for channel one.
HI 3220 SPECIFICATIONS –2.0 to 20.0 pH –2.00 to 20.00 pH -2.000 to 20.000 pH RANGE ±2000.0 mV –20.0 to 120.0 ºC (–4.0 to 248.0 ºF) 0.1 pH 0.01 pH 0.001 pH RE SOLUTION 0.1 mV 0.1 ºC (0.1 ºF) ±0.01 pH ±0.002 pH ACCURACY @ 20 ºC / 68 ºF ±0.2 mV ±0.2 ºC (±0.4 ºF) (excluding probe error) Rel mV offset range ±2000 mV pH Calibration Up to 5 points. 7 standard buffers available (1.68, 4.01, 6.86, 7.01, 9.18, 10.01, 12.45) and 5 custom buffers.
HI 3221 SPECIFICATIONS –2.0 to 20.0 pH –2.00 to 20.00 pH –2.000 to 20.000 pH RANGE ±2000.0 mV 1.00/E -3 to 1.00/E 5 conc. –20.0 to 120.0 ºC (–4.0 to 248.0 ºF) 0.1 pH 0.01 pH 0.001 pH RE SOL UTION 0.1 mV 3 digits 0.01, 0.1, 1, 10 conc. 0.1 ºC (0.1 ºF) ±0.1 pH ±0.002 pH ACCURACY @ 20 ºC / 68 ºF ±0.2 mV ±0.5% of reading (monovalent ions) ±1% of reading (divalent ions) ±0.2 ºC (±0.
HI 3222 SPECIFICATIONS –2.0 to 20.0 pH –2.00 to 2.00 pH –2.000 to 2.000 pH RANGE ±2000.0 mV 1.00/E -7 to 9.99/E 10 conc. –20.0 to 120.0 ºC (–4.0 to 248.0 ºF) 0.1 pH 0.01 pH 0.001 pH RE SOL UTION 0.1 mV 3 digits 0.01, 0.1, 1, 10 conc. 0.1 ºC (0.1 ºF) ±0.01 pH ±0.002 pH ACCURACY @ 20 ºC / 68 ºF ±0.2 mV ±0.5% of reading (monovalent ions) ±1% of reading (divalent ions) ±0.2 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 calibrations and all other settings, when unplugged. • Make sure a fuse protects the main line. ELECTRODE AND PROBE CONNECTIONS For pH or ORP measurements connect a combination pH/ORP electrode to the BNC connector located on the rear panel of the instrument (16 – see page 7).
Allow for the electrode to adjust and reading to stabilize (hourglass symbol turns off). On the pH screen are displayed: • pH reading with the selected resolution. • Temperature reading in the selected unit (ºC or ºF). • Temperature compensation mode (MTC - manual, ATC - automatic). While in MTC mode the indicate that the temperature can be manually changed using ARROW keys. • Electrode condition during the calibration day. • The buffers used in last pH calibration (if feature is enabled in SETUP).
ORP MEASUREMENTS To perform ORP measurements, connect an ORP electrode (see “Accessories“ section) to the instrument and turn it ON. If necessary, enter the mV mode by pressing RANGE until the display changes to mV. Submerse the ORP electrode 3 cm (1¼”) into the sample to be tested and wait a few seconds for the reading to 3 cm stabilize. Measurements are displayed with 0.1 mV resolution. The “ATC” (or “MTC”) message is turned off because mV readings are not temperature compensated.
On the HI 3221 enter the ISE mode by pressing RANGE until the display changes to ISE. Submerse the ISE electrode tip 3 cm (1¼”) into the sample to be tested and wait for the reading to stabilize. 3 cm The ISE reading will be displayed along with the current temperature reading. The “ATC” (or “MTC”) message is turned off because ppm readings are not temperature compensated.
p H CALIBRATION It is recommended to calibrate the instrument frequently, especially if high accuracy is required. The pH range should be recalibrated: • Whenever the pH electrode is replaced. • At least once a week. • After testing aggressive chemicals. • When calibration alarm time out is expired - “CAL DUE” blinks (if feature is enabled in SETUP).
• Press CAL. The instrument will display the measured pH, the LCD first expected buffer and the temperature reading. • 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, Confirm function key is displayed. • Press Confirm to confirm first point. • The calibrated value and the second expected buffer value is then displayed on the LCD.
• When the reading is stable and close to the selected buffer, the Confirm function key is displayed. • Press Confirm to confirm calibration. • The calibrated value and the third expected buffer value will be displayed. • After the second calibration point is confirmed, immerse the pH electrode and the temperature probe approximately 3 cm (1¾”) into a third buffer solution and stir gently. The temperature probe should be close to the pH electrode.
FOUR, THREE or TWO-POINT CALIBRATION • Proceed as described in “FIVE-POINT CALIBRATION” section. • Press CAL or ESC after the appropriate accepted calibration point. The instruments will return to measurement mode and will memorize the calibration data. SINGLE-POINT CALIBRATION There are two selectable options for a single-point calibration: Replace and Offset. This option is configured in SETUP mode under the parameter First Point Mode.
ERROR SCREENS Wrong buffer The calibration cannot be confirmed. The pH reading is not close to the selected buffer. Select another buffer using the ARROW keys or change the buffer. Electrode Dirty/Broken alternatively with Buffer Contaminated The calibration cannot be confirmed. The offset of the electrode is not in the accepted range. Check if the electrode is broken or clean it following the Cleaning Procedure (see page 59). Check the quality of the buffer. If necessary, change the buffer.
Wrong old slope An inconsistency between new and previous (old) calibration is detected. Clear old calibration parameters and initiate calibration from the current point. The instrument will keep all confirmed values during current calibration. Note: For single-point calibration the electrode condition is not displayed in the measurement screen. Each time a buffer is confirmed, the new calibration parameters replace the older calibration parameters of the corresponding buffer.
Use the ARROW keys to change the buffer value. Press Accept to accept new value or ESC to exit mode. Note: Custom buffer value can be adjusted within a ±1.00 pH window, around the set value. WORKING WITH MILI pH BUFFERS HANNA millesimal pH buffers are ± .002 pH buffers formulated to correspond to nominal pH values. (1.000, 2.000, 3.000, 4.010, 5.000, 6.000, 7.010, 8.000, 9.000, 10.010, 11.000, 12.000, 13.000 and 9 that fall between).
The instrument will display “Calibration Cleared”. All previous calibrations, are cleared and the instrument continues in calibration mode. When new calibration points are confirmed, they are kept. Note: If Clear calibration is invoked during the first calibration point, the instrument returns to measurement mode with CAL DUE message flashing.
p H BUFFER TEMPERATURE DEPENDENCE Temperature has an effect on pH buffers. During calibration the instrument will automatically calibrate to the pH value corresponding to the measured or set temperature. TEMP pH BUFFERS ºC ºF 1. 68 4. 01 6. 86 7. 01 9. 18 10. 01 12. 45 0 32 1.67 4.01 6.98 7.13 9.46 10.32 13.38 5 41 1.67 4.00 6.95 7.10 9.39 10.24 13.18 10 50 1.67 4.00 6.92 7.07 9.33 10.18 12.99 15 59 1.67 4.00 6.90 7.05 9.27 10.12 12.80 20 68 1.68 4.00 6.88 7.
RELATIVE m V CALIBRATION The relative mV value calibration may be used to perform a single point calibration with an ORP standard or remove the contribution of the reference electrode to display mV equivalent to a SHE. • Press CAL when the instrument is in RELATIVE mV measurement mode. The relative mV value and the temperature values are displayed. • Use the ARROW keys if you want to change the displayed relative mV value.
I S E CALIBRATION 3222)) (HI 3221 & HI 3222 It is recommended to calibrate the instrument frequently, especially if high accuracy is required. The ISE range should be recalibrated: • Whenever the ISE probe or ion charge is changed. • At least once a day. • After testing aggressive chemicals. • When calibration alarm time out is expired- “CAL DUE” warning blinks (if feature is enabled). Follow instructions for the individual electrode.
FIVE-POINT CALIBRATION (HI 3222 only) Use part of this procedure for 2, 3 or 4 point calibration. Press ESC. • Immerse the ISE electrode approximately 2 cm (¾”) into 2 cm the less concentrated standard solution and stir gently. • Press CAL. The primary LCD will displays the ion concentration in the selected unit or “---” if not calibrated and first standard value. • If necessary, press the ARROW keys to select a different standard value. • The “ ” tag will blink on the LCD until the reading is stable.
• After the second calibration point is confirmed, immerse the ISE electrode approximately 2 cm (¾”) into the third calibration solution. • If necessary, press the ARROW keys to select a different standard value. • The “ ” tag will blink on the LCD until the reading is stable. • When the reading is stable and close to the selected standard, the Confirm function key is displayed. • Press Confirm to confirm calibration. • The calibrated value and the fourth expected standard value will be displayed.
ERROR SCREENS Wrong standard The calibration cannot be confirmed. Verify that the correct standard is selected. The message appears if mV input is out of ±2000 mV range. Wrong slope The calibration cannot be confirmed. This message is displayed if slope is out of the accepted range. Slope under accepted value (30 % default slope). Verify that the correct standard is selected. Slope over accepted value (130 % default slope).
GOOD LABORATORY PRACTICE (GLP) GLP is a set of functions that allows storage and retrieval of data regarding the maintenance and status of the electrode. All data regarding pH, Rel mV or ISE calibration is stored for the user to review when necessary. EXPIRED CALIBRATION The instrument is provided with a real time clock (RTC), in order to monitor the time elapsed since the last pH calibration.
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 GLP key while in Relative mV measurement mode. The instrument will display the Relative mV GLP information: calibration date, time and offset. LAST ISE CALIBRATION DATA Last ISE calibration data is stored automatically after a successful calibration. To view the ISE calibration data, press GLP function key while in ISE measurement mode.
SETUP Setup mode allows viewing and modifying the measurement parameters. These are general SETUP parameters for all the ranges and range specific parameters. The following table lists the general SETUP parameters, their valid range and the factory default settings.
The following table lists the specific range parameters. Item Calibr. Timeout (pH & ISE) Description Number of days after Calibration warning is displayed Valid value Disable, 1 to 7 days Default Disable First point mode (pH) Custom buffer (pH) pH Resolution Management of 1 point calibration Custom buffer setting Set pH resolution display Display calibration points Replace or offset Replace Max. 5 buffers View calibr. points (pH) Display out of calibr.
GENERAL PARAMETER SCREENS Backlight Focus on the Backlight item. Press Modify. Use / keys to change the intensity then press Accept to confirm. Press ESC to leave without changing. Contrast Focus on the Contrast item. Press Modify. Use / keys to change contrast then press Accept to confirm. Press ESC to leave without changing.
Date/Time Focus on the Date/Time item. Press Modify. Use / keys to select item. Use ARROW keys to change focused values. Press Accept to confirm new setting, or ESC to leave without changing. Time Format Focus on the Time Format item. Press function key to change the option. Date Format Focus on the Date Format item. Press Modify. Use ARROW keys to select date format then press Accept. Press ESC to leave without changing.
Language Focus on the Language item. Use the desired function key to change the option. Wait until new language is loaded. If language load fails the instrument will try to reload current language. If any language can’t be loaded, the instrument will work in safe mode. In this mode all messages are displayed in English and Help is not available. Temperature unit Focus on the Temperature unit item. Press the displayed function key in order to change the temperature unit. Beep On Focus on Beep On item.
AutoEnd stability Focus on AutoEnd item. Press one of the displayed function keys to select the AutoEnd stability criteria. Three options are available: Fast, Medium, Accurate. For the pH range the stability criteria are different for different pH resolution selected (Medium in 0.01 pH range is different than Medium in 0.001 range). Log interval Focus on Log interval item. Press Modify in order to change the option. Use the arrow keys in order to select an option.
Instrument ID Focus on the Instrument ID item. Press Modify. Use ARROW keys to change the instrument ID. Press Accept to confirm or ESC to exit without saving. Baud Rate Focus on the Baud Rate item. Press Modify. Use ARROW keys to select the desired communication baud. Press Accept to confirm or ESC to exit. Meter information Focus on the Meter Information item. Press Select.
The meter informations are displayed: -firmware version -language version -mV and temperature factory calibration time/date RANGE SPECIFIC PARAMETERS SCREENS Calibration Timeout Focus on the Calibration Timeout item. Press Modify. Use ARROW keys to set desired value. Press Accept to confirm or ESC to return without saving. Note: If enabled “CAL DUE” warning will be displayed, the set number of days after calibration is over passed. First point mode Focus on the First Point item.
If Offset is set, after one point calibration the instrument evaluate the offset and keep unchanged the slopes. Custom Buffers Focus on the Custom Buffers item. Press Modify. Press Delete to delete focused buffer. Press Add to add a new buffer to the list (max 5). Press Modify to set custom buffer value. Use ARROW keys to change the value. Press Accept to confirm custom buffer value or ESC to exit without saving. pH Resolution Focus on the pH resolution item.
View Calibration Points Focus on the Calibration Point item. Press the displayed function key to change option. If option is enabled the calibration buffers corresponding to the last calibration are displayed in the pH measurement screen. Out of Cal-Range Warning Focus on the Out of Cal-Range Warning item. Press the displayed function key in order to change option. If enabled, the “Out Cal Range” message will be displayed if the pH reading is not within the calibration range.
Use ARROW keys to focus on the parameter to be changed (“Change Slope” or “Molar Weight”). Focus on Change Slope item. Use ARROW keys in order to select the desired combination. If None/-59.16 is selected the slope of the probe can be changed by pressing Modify key. Press Modify. Use ARROW keys to change the slope. Press Accept to confirm or ESC to exit. Focus on Molar Weight. Press Modify in order to change molar weight. Use ARROW keys to change the value. Press Accept to confirm or ESC to exit.
If Standard was pressed. Use ARROW keys to focus on the desired electrode. Press Accept to confirm setting or ESC to exit. Press View to see probe parameters. ISE unit Focus on the ISE unit item. Press Modify. Use ARROW key to select unit. Press Accept to confirm selection or ESC to exit. Note:• If the unit is changed or “User” is selected a warning message will be displayed to alert that the ISE range must be calibrated.
LOGGING This feature allows the user to log pH, Rel mV or ISE measurements. All logged data can be transferred to a PC through the USB port. The logging space includes 200, 300 or 400 records of Log on demand, acoording to the model, and 600 records of Log interval (lot logging). The log interval is organized in lots. A maximum of 100 lots are accepted. One lot can occupy all the memory space available. LOGGING THE CURRENT DATA To store the current reading into memory, press LOG while in measurement mode.
• At Power Off the current lot is automatically closed. • If the 600 records space or 100 lots are reached, the “Log space is full” message will be displayed. • Enter View Log Data mode and delete lots in order to free space. VIEW LOGGED DATA Notes: Press the Recall function key to retrieve the information stored while in measurement mode for the specific range. If the Recall function key is not displayed press MENU key. The Recall selection screen is displayed.
If Delete is pressed. Use ARROW key to focus the record to be deleted and then press Confirm. Press ESC to exit. If Delete All is pressed the instrumet asks for confirmation. Press Confirm to confirm or ESC to exit without deleting. If AutoLog is pressed. The lot information of the specific range are displayed. Use the ARROW keys to scroll the lots. Press the Delete All function key to enter the Delete All lots screen. Press the Delete function key to enter the Delete lot screen.
m V and TEMPERATURE CALIBRATION (for technical personnel only) All the instruments are factory calibrated for mV and temperature. Hanna’s temperature probes are interchangeable and no temperature calibration is needed when they are replaced. If the temperature or ORP measurements are inaccurate, calibration should be performed. For an accurate recalibration, contact your dealer or the nearest Hanna Customer Service Center, or follow the instructions below.
• Immerse the temperature probe or the pH probe including temperature sensor into the vessel with ice and water as close as possible to the reference thermometer. Allow a few seconds for the probe to stabilize. • Use the ARROW keys to set the calibration point value to that of ice and water mixture, measured by the reference thermometer. When the reading is stable and close to the selected calibration point, the Confirm function key is displayed. • Press Confirm to confirm.
mV CALIBRATION A two point calibration can be performed at 0 mV and 1800 mV. • Attach to the BNC connector a mV simulator with an accuracy of ±0.1 mV. • Enter the calibration screen. Press mV function key. • Set 0.0 mV on the simulator. • When the reading is stable and close to the selected calibration point, the Confirm function key is displayed. • Press Confirm to confirm. The second calibration point of 1800 mV will be displayed. • Set 1800.0 mV on the simulator.
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 an USB cable connector. Make sure that your instrument is switched off and plug one connector to the instrument USB socket and the other to the serial or USB port of your PC.
Change the instrument range according with the parameter value (xx): • xx=10 pH range/0.001 resolution on channel 1 • xx=11 pH range/0.01 resolution on channel 1 • xx=12 pH range/0.
MDR GLPx • 13 mV range on channel 1 • 14 Relative mV range on channel 1 • 15 ISE range on channel 1 (HI 3221) • 20 ISE range on channel 2 (HI 3222) • 21 mV range on channel 2 (HI 3222) • 22 Relative mV range on channel 2 (HI 3222) • Meter status (2 chars of status byte): represents a 8 bit hexadecimal encoding.
PARx • the average of slopes, with sign and decimal point (7 chars) • the calibration time, yymmddhhmmss (12 chars) • buffers information (for each buffer) • type (1 char): 0 - standard, 1 - custom • status (1 char): N (new) - calibrated in last calibration; O (old) - from an old calibration. • warnings during calibration (2 chars): 00 - no warning, 04 - Clean Electrode warning. • buffer value, with sign and decimal point and exponent (11 chars). • calibration time, yymmddhhmmss (12 chars).
NSLxy LLSxy • Calibration Alarm timeout for ISE (2 chars) - if ISE available when x=1 (HI 3221) or when x=2 (HI 3222) • SETUP information (2 chars): 8 bit hexadecimal encoding.
• log type (2 chars) GLDxxx Requests all records for the lot with ID=xxx The answer string contains: • Lot header data: •logging interval (5 char) •log type (1 char) •temperature mode (1 char) •offset (3 char) •slope (4 char) •unit (1 char) • Lot record data: •temperature (3 char) •value (6 char) •second value (6 char) LODxPyyyRequests the yyyth pH record logged data when x=1. LODxMyyyRequests the yyyth mV/Rel mV record logged data.
• The mV reading, with sign and decimal point (7 chars) • The logged time, yymmddhhmmss (12 chars) • The calibration slope, with sign and decimal point (7 chars) - not available for Rel mV range • The calibration offset, with sign and decimal point (7 chars) - not available for ISE • Temperature probe presence (1 char) Notes: • • • • • • “Err8” is sent if the instrument is not in measurement mode. “Err6” is sent if the requested range is not available.
TEMPERATURE CORRELATION FOR p H 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.
ELECTRODE CONDITIONING & MAINTENANCE Not present in gel electrodes. PREPARATION PROCEDURE Remove the electrode 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 have formed inside the glass bulb. The electrode cannot function properly under these conditions. 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 has run down and the electrode should be replaced.
Follow the Storage Procedure above. 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. Rinse with Hanna HI 7077 or HI 8077 Oil and Fat • Oil/grease Cleaning Solution.
TROUBLESHOOTING GUIDE SYMPTOMS PROBLEM SOLUTION Slow response/excessive drift. Dirty pH electrode. Soak the electrode tip in HI 7061 cleaning solution for 30 minutes. Refill with fill solution. Reading fluctuates up and down (noise). Clogged/dirty junction. Low electrolyte level (refillable electrodes only). Clean the electrode (see above). Refill with fresh electrolyte (refillable electrodes only). Display shows blinking full scale value. Reading out of range.
ACCESSORIES pH CALIBRATION SOLUTIONS HI 50004-01 pH 4.01 Buffer Solution, 20 mL sachet, 10 pcs HI 50004-02 pH 4.01 Buffer Solution, 20 mL sachet, 25 pcs HI 50007-01 pH 7.01 Buffer Solution, 20 mL sachet, 10 pcs HI 50007-02 pH 7.01 Buffer Solution, 20 mL sachet, 25 pcs HI 50010-01 pH 10.01 Buffer Solution, 20 mL sachet, 10 pcs HI 50010-02 pH 10.01 Buffer Solution, 20 mL sachet, 25 pcs HI 5016 pH 1.68 Buffer Solution, 500 mL bottle HI 5004 pH 4.01 Buffer Solution, 500 mL bottle HI 5068 pH 6.
3.
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 (PEI), 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 (PVDF), 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 (PVDF), 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 (PVDF), 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" ORP ELECTRODES HI 3131B Glass-body, refillable, combination platinum ORP electrode. Use: titration. 12 mm 0.5" HI 3131 150 mm 5.
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 OTHER ACCESSORIES HI 740157 HI 76404N HI 7662-T HI 8427 HI 931001 HI 76404N Plastic electrode refilling pipet (20 pcs) Electrode holder Stainless steel Temperature probe with 1 m (3.3') screened cable 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.
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.
