Instruction Manual HI8417 - HI8519 HI8520 - HI8521 Microprocessor Bench-top pH Meters HI 84 17 °C pH ON OFF BUFF ER VA d1 LUES NB 20°C t1 STD S pH 6,8 d2 pH NB 7,02 8 STD S pH 4,0 pH NBS 4,00 0 pH STD 9,2 pH 10,05 2 t2 t3 d3 CAL CON °C pH °C mV 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 CSA, UL and (EN 50081-1 and EN 50082-1) directives.
PRELIMINARY EXAMINATION Remove the instrument from the packing material and examine it to make sure that no damage has occurred during shipping. If there is any damage, notify your dealer. Note: Save all packing material until you are sure that the instrument functions correctly. All defective items must be returned in the original packing with the supplied accessories. GENERAL DESCRIPTION HI8417, HI8519, HI8520 and HI8521 Hanna Instruments benchtop pH meters are designed for simplicity of use.
HI8520 pH/°C meter automatically recognizes 3 standard calibration buffer values (4.01, 7.01 and 10.01 pH). HI8520 comes supplied with HI1332B plastic-body combination pH electrode, HI7669/2W temperature probe (with 1 meter/ 3.3' cable), 12VDC adapter (HI710005 or HI710006) and a dust cover. HI8521 pH/mV/°C meter automatically recognizes 3 standard calibration buffer values (4.01, 7.01 and 10.01 pH).
FUNCTIONAL DESCRIPTION & SPECIFICATIONS OF HI8417 THE FRONT PANEL OF HI8417 pH °C HI 8417 BUFFER VALUES 20°C ON OFF d1 t1 NBS STD pH pH 6,88 7,02 d2 t2 NBS STD pH pH 4,00 4,00 d3 t3 NBS STD pH 9,22 pH 10,05 °C CAL pH °C mV CON ON / OFF To turn the instrument ON and OFF. (Warning: Push the OFF key before unplugging instrument. If unplugged before turned off, the meter's memory will be erased). CAL To enter the calibration mode. CON To confirm the calibration data.
THE REAR PANEL OF HI8417 COMBINED pH or ORP REFERENCE ELECTRODES ELECTRODE RESET 1 2 3 TEMPERATURE DC POWER 12V to 20V PROBE RECORDER 0-2 VOLT 4 + 5 6 1. BNC socket for pH and ORP electrode. 2. Reference Jack socket for reference electrode. 3. RESET button. 4. Recorder output connections. 5. Temp. Probe socket (for HI7669/2W). 6. DC Power Socket (for HI710005 or HI710006).
instrument's power supply is disconnected before the meter is switched off. Press the RESET button and restart the entire operation. Power connection Plug the 12VDC adapter (HI710005 or HI710006) into the DC socket (#6). Note: Make sure the main line is protected by a fuse. Note: HI8417 uses a rechargeable battery to retain the pH calibration data. It lasts approximately one month when fully charged. The battery is automatically charged any time the meter is plugged-in (either turned on or off).
FUNCTIONAL DESCRIPTION & SPECIFICATIONS OF HI8519 THE FRONT PANEL OF HI8519 pH HI 8519 OFFSET SLOPE SLOPE OFFSET Temperature TEMPERATURE °C TEMPERATURE °C Buffer Values (pH) °C °F 4.01 7.01 10.01 0 10 20 30 40 32 50 68 86 104 4.01 4.00 4.00 4.02 4.04 7.13 7.07 7.03 7.00 6.98 10.32 10.18 10.06 9.96 9.88 pH °C mV ON OFF ON/OFF To switch the meter ON and OFF. pH To display pH values. mV To display mV values.
Electrode and probe connections For combination pH or ORP electrodes (with internal reference) plug the electrode's BNC to the socket provided (#1). For an electrode with a separate reference, connect the measuring electrode's BNC to the BNC socket (#1) and the reference electrode's jack to the socket provided (#2). Power connection Plug the 12VDC adapter (HI710005 or HI710006) into the DC socket (#3). Note: Make sure the main line is protected by a fuse.
FUNCTIONAL DESCRIPTION & SPECIFICATIONS OF HI8520 THE FRONT PANEL OF HI8520 ERROR SYMBOLS Temperature CAL E1: pH out of range E2: °C out of range °C E4: wrong pH 7 E5: wrong pH 4/10 CON °C °F 0 10 20 30 40 32 50 68 86 104 Buffer Values (pH) 4.01 7.01 10.01 4.01 4.00 4.00 4.02 4.04 7.13 7.07 7.03 7.00 6.98 10.32 10.18 10.06 9.96 9.88 ON OFF RANGE ON / OFF RANGE CAL/CON To switch instrument ON and OFF. To display pH or temperature measurements.
off. Press the RESET button and restart the entire operation. Power connection Plug the 12VDC adapter (HI710005 or HI710006) into the socket on the back of the meter (#5). Note: Make sure the main line is protected by a fuse. Note: HI8520 uses a rechargeable battery to retain the pH calibration data. It lasts approximately one month when fully charged. The battery is automatically charged any time the meter is plugged-in (either turned on or off).
FUNCTIONAL DESCRIPTION & SPECIFICATIONS OF HI8521 THE FRONT PANEL OF HI8521 ERROR SYMBOLS Temperature CAL E1: pH out of range E2: °C out of range °C E3: mV out of range E4: wrong pH 7 CON E5: wrong pH 4/10 ON / OFF RANGE CAL/CON °C °F 0 10 20 30 40 32 50 68 86 104 Buffer Values (pH) 4.01 7.01 10.01 4.01 4.00 4.00 4.02 4.04 7.13 7.07 7.03 7.00 6.98 10.32 10.18 10.06 9.96 9.88 ON OFF RANGE To switch instrument ON and OFF. To display pH / ORP / Temperature measurements.
instrument's power supply is disconnected before the meter is switched off. Press the RESET button and restart the entire operation. Power connection Plug the 12VDC adapter (HI710005 or HI710006) into the socket on the back of the meter (#5). Note: Make sure your main line is protected by a fuse. Note: HI8521 uses a rechargeable battery to retain the pH calibration data. It lasts approximately one month when fully charged.
OPERATIONAL GUIDE TAKING PH MEASUREMENTS Connect the instrument to the 12VDC adapter (HI710005 or HI710006). Plug the adapter into the mains. Make sure that the instrument has been calibrated for pH before taking pH measurements (see page 18). For HI8519 only: ON • Connect the pH electrode to the meter and switch OFF the instrument on by pressing the ON/OFF key. • Immerse the electrode tip (4 cm/1½") into the sample and shake briefly.
• In HI8417 the temperature reading is also displayed on the left LCD. pH °C Note: the electrode should be submerged approximately 4 cm (1½") into the solution. If the temperature probe is used, it should be located as close to the pH electrode as possible. 4 cm (1½") If measurements are taken in different samples successively, it is recommended that the electrode is rinsed thoroughly for better conditioning and to eliminate cross-contamination of the sample.
• When the temperature is set manually, "°C" symbol blinks. With the temperature probe connected, the "°C" symbol is displayed continuously. • Use the UP or DOWN arrow keys to manually adjust the display reading to the value of the reference thermometer. ºC °C °C TAKING TEMPERATURE MEASUREMENTS (NOT FOR HI 8519) • Taking a temperature measurement is very easy. • Turn the instrument ON and press the RANGE key (for HI8520 and HI8521 only) to get into temperature mode.
For HI8417 and HI8521 • Connect the ORP electrode to the meter and submerge the tip (4 cm / 1½") into the sample to be tested. Note: ORP measurements are taken without temperature compensation. pH RANGE • Press the pH/mV key (HI8417) or mV RANGE key (HI8521) once to enter the mV mode. • Allow a few minutes for the reading to stabilize. • The display will indicate the absolute mV mV value (positive or negative).
PH CALIBRATION IMPORTANT The instrument's pH range should be re-calibrated: • When the meter is new. • Whenever the pH electrode is replaced. • At least once a month. • After use in aggressive chemicals. • After cleaning procedure and changing the reference electrolyte. • For greatest accuracy. INITIAL PREPARATION 04 70 HI Pour small quantities (up to 4cm / 1½" level) of pH 7.01 (HI7007 or HI8007) and pH4.01 (HI7004 or HI8004) or pH 10.01 (HI7010 or HI8010) solution into clean beakers.
Procedure: ON • Switch the instrument on after connecting the pH electrode and the temperature probe. • Immerse the pH electrode and the ATC probe into a neutral pH buffer solution (pH 7.01 for technical buffers, or pH 6.86 for NBS buffers). Shake briefly and wait 1-2 minutes for thermal equilibrium. CAL • Press the CAL key. The symbol "d1" will appear on the display. For calibration with technical buffers (pH 7.01), press CAL key again and "t1" will appear on the display.
• The meter automatically recognizes the buffer value and prompts for the second at "d2" or "t2" (= pH 4.01, acid) or "d3" or "t3" (pH 9.18 and pH10.01 respectively, alkaline). CON • Press the CON key to confirm the pH value. • The display will indicate the temperature compensated buffer value e.g. if the temperature is at 25°C, the display will show "pH 4.01" or "10.01" or "pH 9.18", depending on the solution being used. If the temperature is at 20°C, the display will show respectively "pH 4.
Procedure: • Switch the instrument on after connecting the pH electrode. • Rinse and immerse the pH electrode in pH 7.01 buffer and shake briefly. Wait 1 or 2 minutes for the reading to stabilize. • Note the temperature of the buffer solution using a ChecktempC or a glass thermometer (e.g.20°C). • Press the °C key to select temperature setting. Adjust the Temperature °C knob until display shows the noted temperature. ON OFF °C °C °C °C pH TEMPERATURE °C • Press the pH key to select pH measurement.
• Press the CAL key. The temperature compensated CAL buffer value will be displayed e.g. if the buffer temperature is at 25°C, the display will show pH7.01. If the buffer temperature is at 20°C, display will show pH 7.03 (see page 23). If pH "E4" appears the calibration solution is wrong. • Wait until the pH symbol stops flashing: that means the reading is stable. CON • Press the CON key. The symbol "E5" will appear to indicate that the electrode is still in pH 7.01 buffer, but expecting a pH 4.01 or 10.
PH VALUES AT VARIOUS TEMPERATURE Temperature has an effect on pH. The calibration buffer solutions are effected by temperature changes to a lesser degree than normal solutions. For manual temperature calibration (standard with HI 8519 or optional with HI 8417, HI 8520 and HI 8521) please refer to the following chart. TEMP pH VALUES °C °F 4.01 6.86 7.01 9.18 10.01 9.46 10.32 7.13 4.01 6.98 32 0 9.39 10.24 7.10 4.00 6.95 41 5 9.33 10.18 7.07 4.00 6.92 10 50 9.27 10.12 7.04 4.00 6.90 15 59 9.22 10.06 7.03 4.
TROUBLESHOOTING Symptoms are: The Problem is: The instrument does not work with the HI7669/2W probe (not HI8519) The meter fails to calibrate or gives erroneous results The meter is slow in responding or gives erroneous readouts A defective ATC Probe Replace the probe. Possible Solutions: A defective pH electrode Replace the electrode and repeat the pH calibration. The electrode is not Leave the electrode in a working or the dia- storage solution after cleanphragm is clogged ing the diaphragm.
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 Reference Wire Reference Junction Platinum or Gold tip Glass Body pH Electrode Reference Wire Plastic Body ORP Electrode Reference Junction Platinum or Gold tip Glass Body ORP Electrode PREPARATION Remove the protective cap.
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 a faster response, unscrew the fill hole screw during measurements. For AmpHel®electrodes: If the electrode does not respond to pH changes, the battery is run down and the electrode should be replaced.
CLEANING PROCEDURE General Soak in Hanna HI 7061 or HI 8061 General Cleaning Solution for approximately ½ hour. Removal of films, dirt or deposits on the membrane/junction: - Protein Soak in Hanna HI 7073 or HI 8073 Protein Cleaning Solution for 15 minutes. - Inorganic Soak in Hanna HI 7074 or HI 8074 Inorganic Cleaning Solution for 15 minutes. - Oil/grease Rinse with Hanna HI 7077 or HI 8077 Oil and Fat Cleaning Solution.
TEMPERATURE-RESISTANCE CORRELATION 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 0.1 Mol L Na -1 pH 13.00 13.50 14.00 12.50 13.00 13.50 14.00 + 1.0 Mol L-1 Na+ 29 Error 0.10 0.14 0.20 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.
HI 1083B Glass-body, micro, Viscolene, non-refillable, combination pH electrode. Use: biotechnology, micro titration. 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 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.
HI 2031B Glass-body, semimicro, conic, refillable, combination pH electrode. Use: semisolid products. 6 mm 0.25" HI 2031 75 mm 2.95" "S" VERSION 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.
FC 210B Glass-body, double junction, conic, Viscolene, non-refillable, combination pH electrode. Use: milk, yogurt. 12 mm 0.5" FC 210 120 mm 4.7" FC 220B Glass-body, triple-ceramic, single junction, refillable, combination pH electrode. Use: food processing. 9.5mm DIA 0.37" 12 mm 0.5" FC 220 120 mm 4.7" 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.
ORP electrodes: HI 3131B Glass-body, refillable, combination platinum ORP electrode. Use: titration. 12 mm 0.5" HI 3131 150 mm 5.9" "S" VERSION HI 3230B Plastic-body (Ultem®), gel-filled, combination platinum ORP electrode. Use: general purpose. 12 mm 0.5" HI 3230 120 mm 4.7" "S" VERSION HI 4430B Plastic-body (Ultem®), gel-filled, combination gold ORP electrode. Use: general purpose. 12 mm 0.5" HI 4430 120 mm 4.
HI7855/10 Extension cable 10m (33') long HI7855/15 Extension cable 15m (49.5') long Power Units: HI710005 HI710006 Voltage adapter from 115 VAC to 12 VDC Voltage adapter from 230 VAC to 12 VDC OTHER ACCESSORIES ChecktempC Pocket-size thermometer (range -50.0 to 150.0°C) HI 76405 Electrode holder HI 7669/2W Temperature probe with 1 m (3.3') screened cable (not for HI 8519) HI 8427 pH and ORP electrode simulator with 1 m (3.
ELECTRODE APPLICATION REFERENCE GUIDE Application 1. 2. 3. 4. 5. 6. 7. 8. 9. 10. 11. 12. 13. 14. 15. 16. 17. 18. 19. 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 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. This warranty is limited to repair or replacement free of charge. Damage 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 bench pH meters HI 8417 HI 8519 HI 8520 HI 8521 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: 20-12-1995 D.Volpato - Engineering Manager On behalf of Hanna Instruments S.r.l.
PRINTED IN PORTUGAL MANPHBNR3 05/98 h t t p : / / w w w . h a n n a i n s t .
