Instruction Manual HI931300 HI 931301 Portable Microprocessor Logging pH Meters with Last Calibration Data Storage RANGE pH 0.00 . . . . 14.00 ºC 0.00 . . . +100.
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 more precise idea of its versatility in a wide range of applications. These instruments are in compliance with the directives EN 50081-1 and EN 50082-1. TABLE OF CONTENTS Preliminary Examination ............................. 1 General Description .......
PRELIMINARY EXAMINATION Remove the instrument from the packing material and examine it carefully to make sure that no damage has occurred during shipment. If noticeable damage is found, notify your Dealer. Each pH meter is supplied complete with: • HI1230B Combination pH Electrode • HI7669/2W Temperature Probe • 1.5V AA size Alkaline Batteries (4 pcs) • Rugged Carrying Case. Note: Save all packing material until you are sure that the instrument functions correctly.
HI 9200, and a Windows® compatible software, HI 92000. Data can be downloaded in seconds through the infrared diode for storage, graphing, and other functions. The instrument housing is made of rugged, lightweight material, weighing under 500 g (17 oz.). Other features include automatic calibration (1, 2 or 3 point), 3 memorized buffers (pH 4.01, 7.01, 10.01), auto shut-off, low battery detection and 12VDC socket for power supply (optional, see page 41 for details).
FUNCTIONAL DESCRIPTION 1 1 12 12 2 2 pH 3 4 pH 3 LOG HI 931301 HI 931300 MICROPROCESSOR LOGGING pH METER 5 RANGE pH 0.00 . . . . 14.00 ºC 0.00 . . . +100.0 6 ON/OFF 5 11 LOG ALT CAL 11 RANGE pH 0.00 . . . . 14.00 ºC 0.00 . . . +100.0 6 10 ON/OFF 9 7 MICROPROCESSOR pH METER 9 7 ALT CFM CAL CFM 8 RANGE 1. 2. 3. 4. 5. 6. 7. 8. 9. 10. 11. 12.
SPECIFICATIONS HI 931300 HI 931301 Range pH °C 0.00 to 14.00 pH 0.0 to 100.0°C Resolution pH °C 0.01 pH 0.1°C Accuracy (@20°C/68°F) pH °C +0.01 pH +0.5°C Typical EMC Deviation pH °C +0.02 pH +0.5°C Calibration Automatic 1, 2 or 3 points with pH 4, 7 and 10 buffers memorized Offset Calibration +1 pH Slope Calibration from 70 to 108% Temperature Compensation Electrode Automatic from 0 to 100°C (32 to 212°F) or fixed at 25°C (77°F) HI 1230B combination pH gel electrode (included) Temp.
OPERATIONAL GUIDE 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. - 1.5V + + 1.5V - - 1.5V + + 1.5V - SCREW POTS RESET PROBES CONNECTION To prepare the COMBINATION HI 7669/2W instrument for TEMPERATURE pH ELECTRODE WITH BNC CONNECTOR PROBE use, connect the pH electrode to the BNC connector located on the top of the instrument.
non-use. However, HI 931300 will continue to log, if in the logging mode, pH and temperature. To revive the display, press the ON/OFF key. ON/OFF Before proceeding with pH measurements follow the calibration procedure (see page 14). SETTING DATE/TIME/LOGGING INTERVAL Press the ALT and the TIME keys simultaneously. The display will show the date setting. The year will be blinking. ALT CAL RANGE TIME DATE Use the UP or the DOWN arrow keys to select the year.
Press the TIME key. The day will start blinking. DATE TIME Use the UP or the DOWN arrow key to select the correct day. or CFM CAL Press the ALT and the TIME keys simultaneously. The display will now show the time with the logging interval blinking (for HI 931300 only). ALT CAL TIME INTV RANGE TIME The 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. Note: the default logging interval is set at 1 minute.
To select the hour, press the UP or the DOWN arrow keys (24 hour clock). or CFM CAL To set the hour press the TIME key once. The minutes will be blinking. TIME INTV TIME Use the UP or the DOWN keys to select the minutes. or CFM CAL Press the ALT and the TIME keys simultaneously to leave this mode. ALT CAL RANGE TIME The time, date and printing interval are now set and stored in the memory. The memory is retained even when the meter is switched off.
TO VIEW THE DATE/TIME/LOGGING INTERVAL/pH/TEMPERATURE To view the time press the TIME key. In HI 931300 this also displays the selected logging interval. HI931300 TIME INTV TIME TIME HI931301 To view the date, press the UP arrow key when the LCD is displaying time. DATE CAL To view pH and temperature press the RANGE key (temperature will be displayed on the secondary display without decimal digit).
TO VIEW THE pH CALIBRATION DATA Press the FACTOR key and the meter will display the last calibration date, in the following sequence: - month, day and year DATE FACTOR Press the FACTOR key again and the meter will display the last calibration time as - hour and minutes. TIME FACTOR Press the FACTOR key again, the display will show the offset calibration factor as: - pH offset value - pH 7 buffer pH FACTOR The pH offset value should be between ±0.50 pH. For values higher than +0.50 or lower than -0.
Press the FACTOR key again, the display will show the first slope calibration factor as: - pH % slope 1st value - pH 4 buffer % FACTOR Press the FACTOR key again to display the second slope calibration factor as: - pH slope 2nd value - pH 10 buffer. % FACTOR The slope characteristic of the pH electrode is directly displayed in percentage of the theoretical value of 58.17mV per pH unit at 20°C. Press the FACTOR key again to return to normal operation.
Make sure that the pH electrode and the temperature probe are securely connected to the meter. If possible, use plastic beakers to minimize any EMC interferences. To take pH measurements, simply submerge the bottom 4 cm (1½") of the electrode and the temperature probe in 4 cm the solution to be tested, stir (1½") gently and allow a few seconds for the electrode to adjust and stabilize. For greatest accuracy, it is recommended to calibrate the meter regularly (see page 14).
TAKING TEMPERATURE MEASUREMENTS The HI 7669/2W temperature probe that is supplied with HI 931300 and HI 931301 is a liquid/general purpose probe. Taking a temperature measurement with HI 931300 and HI 931301 is very easy. Press the RANGE key to get into the temperature mode. The temperature value and the "°C" symbol will be displayed on the primary display. °C RANGE Make sure the probe is properly connected to the meter, and take the measurement (allow 1 or 2 minutes for the temperature to stabilize).
pH CALIBRATION PROCEDURE For greatest accuracy, it is recommended that the instrument is calibrated frequently. For a faster operation, it is possible to standardize the electrode at pH 7.01 only (one point calibration), but it is always good practice to calibrate at least 2 points. The standard calibration program of the meter, however, is prepared for 3 (maximum) buffers. Due to electrode conditioning time the electrode must be kept immersed in the sample for a few seconds to stabilize.
PROCEDURE • Press the RANGE key to select the pH measurement mode. pH RANGE 4 cm (1½") • Rinse the pH electrode with some pH 7.01 (HI7007/ HI8007) solution or tap water. Dip the bottom 4 cm (1½") of the electrode and the temperature probe into a beaker containing pH 7.01 solution. • Press the CAL key. The secondary (lower) LCD will blink “7” to indicate that pH 7.01 is expected and the electrode is getting conditioned. HI 7007 CAL • When the “7” stops blinking, the calibration can be confirmed.
recalibrate the value. CAL Note: If a single point calibration is required, press CAL to leave the calibration mode CAL now. However, it is always better to proceed as follows for a two-point calibration. • “10” can be changed to “4” (indicating pH 4.01) by immersing the electrode and the temperature probe into the pH 4.01 buffer. If you are measuring acid samples (pH 7 or less) use the pH 4.01 buffer (HI7004/HI8004). For alkaline samples (pH 7 or more) use pH 10.01 (HI7010/HI 8010).
confirm the second calibration point. CFM • If the buffer is out of the slope range, "E2" as error message will appear on the secondary display. Press the CAL key and recalibrate the value. CAL • If everything is satisfactory the secondary LCD will blink "4" (if previously was "10") or "10" (if previously was "4") expecting the third buffer (HI7004/HI8004 or HI7010/HI8010). Note: if a two-point calibration is required, press the CAL key to leave CAL the calibration mode now.
calibration point. CFM • If the buffer is out of the slope range, "E2" as error message will appear on the secondary display. Press the CAL key and recalibrate the value. CAL • If you cannot complete the calibration, check your electrode by following the conditioning and maintenance procedure on page 28 and repeat the calibration procedure from the beginning with fresh buffers. The pH electrode might have to be replaced if calibration cannot be successfully performed.
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. During calibration the meter will automatically calibrate to the pH value corresponding to the measured temperature if used in conjunction with the HI7669/2W temperature probe or to 25°C / 77°F if used without temperature probe. TEMP °C °F 4.01 6.86 0 5 10 15 20 25 30 35 40 45 50 55 60 65 70 4.01 4.00 4.00 4.00 4.00 4.01 4.02 4.
TEMPERATURE CALIBRATION (for Technical Personnel only) You can perform the temperature calibration as follows. INITIAL PREPARATION • Prepare a vessel containing ice and water and another one containing hot water (at a temperature of 50°C/122°F). Place insulation material around the container to minimize temperature changes. • Use a ChecktempC or a calibrated thermometer with a resolution of 0.1°C as a reference thermometer.
• When "0" stops blinking, the calibration can be confirmed. Press the CFM key to confirm the first temperature value. CFM • If the value is out of the offset range, "E1" as error message will show on the secondary display. Press the CAL key to re-calibrate the value. CAL • If everything is satisfactory the secondary LCD will blink "50" expecting the second temperature measurement. Note: If a single point calibration is required, press the CAL key to leave the temperature calibration mode now.
key again to confirm the second calibration point. CFM • If the input is out of the slope range, "E2" as error message will appear on the secondary display. Press the CAL key to recalibrate the value. CAL If everything is satisfactory the temperature calibration is complete and the meter will resume the normal operational mode.
LOGGING FUNCTION (HI931300 only) LOGGING MODE In this mode data will be stored directly into memory for later retrival. Set the appropriate logging interval (see Operational Guide section on page 6). Press the ALT and the LOG keys simultaneously to enter the logging mode. The log number and page number will appear for a few seconds on the display to indicate the correct operational mode.
To view the pH values press the RANGE key again. pH RANGE To return to the logging information press the LOG key. LOG After approximately 5 minutes the display will switch off but the logging function remains active. To reactivate the display press the ON/OFF key. ON/OFF Note: 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.
DATA TRANSFER TO PC HI 931300 contains infrared emitting circuitry. Set the meter to the TIME mode and simply place your data-logger on a HI9200 Infrared Transmitter (ensuring that TIME 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".
HI92000 allows you to use the powerful means of most spread sheet programs (e.g. Excel©, Lotus 1-2-3©). Simply open the file downloaded by HI92000 and it is possible to make any elaboration available with your software (e.g. graphics, statistic analysis). User friendly, HI92000 offers a variety of features and has an on line help to support you throughout any situation. To install HI92000 you need a 3.5" drive and a few minutes to follow the instructions conveniently printed on the disk label.
MEMORY ORGANIZATION Capacity: 8,000 data samples which are divided into 16 pages. Each time a new logging period starts, it automatically starts from a new page. If “LOGGING” is still on, and the available page is “0” the meter will overwrite the first LOT DATA in the existing memory. During logging the meter automatically returns to the oldest page in the memory and if it contains data, it will overwrite it. In this case the first log will not correspond to the oldest set of data.
ELECTRODE CONDITIONING AND MAINTENANCE Reference Filling Hole Reference Filling Hole Fill Hole Screw 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.
For refillable electrodes: If the fill solution (electrolyte) is less than 1 cm (½") 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.
PERIODIC MAINTENANCE Inspect the electrode and the cable. The cable used for the connection to the meter must be intact and there must be no points of broken insulation on the cable or cracks on the electrode stem or bulb. Connectors must be perfectly clean and dry. If any scratches or cracks are present on the electrode body, replace the electrode. Rinse off any salt deposits with water.
TROUBLESHOOTING Evaluate your electrode performance based on the following possibilities. • Noise (Readings fluctuate up and down) could be due to: - Clogged/Dirty Junction: Refer to the Cleaning Procedure above. - Loss of shielding due to low electrolyte level (in refillable electrodes only): refill with fresh HI 7071 or HI 8071 for single junction or HI 7082 or HI 8082 for double junction electrodes. • Dry Membrane/Junction: Soak in Storage Solution HI 70300 or HI 80300 for at least 1 hour.
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 the battery types specified in SCREW POTS this instruction manual (see RESET page 42). 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.
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.
Typical Electrode Life Ambient Temperature 1- 3 years 90 °C Less than 4 months 120°C Less than 1 month 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 readings to be underestimated. Hanna's glass formulations have the indicated characteristics.
ACCESSORIES pH CALIBRATION SOLUTIONS HI774P pH 4.01 & 7.01 Buffer Solution, 30 mL each HI 7004M pH 4.01 Buffer Solution, 230 mL HI 7004L pH 4.01 Buffer Solution, 460 mL HI 7006M pH 6.86 Buffer Solution, 230 mL HI 7006L pH 6.86 Buffer Solution, 460 mL HI777P pH 7.01 Buffer Sol. 2x30 mL HI 7007M pH 7.01 Buffer Solution, 230 mL HI 7007L pH 7.01 Buffer Solution, 460 mL HI 7009M pH 9.18 Buffer Solution, 230 mL HI 7009L pH 9.18 Buffer Solution, 460 mL HI7710P pH 7.01 & 10.
ELECTRODE CLEANING SOLUTIONS HI 7061M General Cleaning Sol., 230 mL HI 7061L General Cleaning Sol., 460 mL HI 7073M Protein Cleaning Sol., 230 mL HI 7073L Protein Cleaning Sol., 460 mL HI 7074M Inorganic Cleaning Sol., 230 mL HI 7074L Inorganic Cleaning Sol., 460 mL HI 7077M Oil & Fat Cleaning Sol., 230 mL HI 7077L Oil & Fat Cleaning Sol.
pH ELECTRODES B = BNC CONNECTION PLUG + 1 m (3.3’) CABLE S = SCREW-TYPE CONNECTOR HI 1043B / HI 1040S Glass-body, double junction, refillable, combination pH electrode. Use: strong acid/alkali. 9.5mm DIA 0.37" 12 mm 0.5" HI 1043 120 mm 4.7" "S" VERSION HI 1053B / HI1050S Glass-body, triple ceramic, conic shape, refillable, combination pH electrode. Use: emulsions. 12 mm 0.5" HI 1053 120 mm 4.7" "S" VERSION HI1083B Glass-body, micro, Viscolene, nonrefillable, combination pH electrode.
HI 1131B / HI 1111S 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 / HI 1310S Glass-body, semimicro, single junction, refillable, combination pH electrode. Use: laboratory. 5mm DIA 0.2" 5mm 0.2" HI 1330 120 mm 4.7" "S" VERSION HI 1331B / HI 1311S 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 2031B / HI 2020S 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 / HI 1312S Plastic-body (Ultem®), double junction, refillable, combination pH electrode. Use: general purpose. 12 mm 0.5" HI 1332 "S" VERSION 120 mm 4.7" FC100B Plastic-body (Kynar®), double junction, refillable, combination pH electrode. Use: general purpose for food industry. 12 mm 0.5" FC 100 120 mm 4.
FC210B Glass-body, double junction, conic, Viscolene, combination pH electrode. Use: milk, yogurt. 12 mm 0.5" FC 210 120 mm 4.7" FC220B Glass-body, single junction, refillable, combination pH electrode. Use: food & wine processing. 9.5mm DIA 0.37" 12 mm 0.5" FC 220 120 mm 4.7" FC911B 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.
Extension cables for screw-type electrodes only (screw to BNC connector) HI7855/1 Extension cable 1m (3.3') long HI7855/3 Extension cable 3m (9.9') long HI7855/5 Extension cable 5m (16.5') long HI7855/10 Extension cable 10m (33') long HI7855/15 Extension cable 15m (49.5') long HI 7855 SERIES CABLE CONNECTORS CONNECTOR AND 3.0 mm (0.
OTHER ACCESSORIES BAT1.5AA/P 1.5V AA battery (8 pcs) ChecktempC Pocket-size thermometer with penetration probe and 0.1°C resolution (range -50.0 to 150.0°C) HI 76405 Electrode holder HI 7669/2W Temperature probe with 1 m (3.3') screened cable HI 8427 pH and ORP electrode simulator with 1 m (3.3') coaxial cable ending in female BNC connectors (HI 7858/1) HI 9200 Infrared Transmitter HI 92000 Windows® software for data transfer to PC HI 931001 pH and ORP electrode simulator with LCD display 1 m (3.
ELECTRODE APPLICATION REFERENCE GUIDE Application Electrodes 1. Aquarium HI 1332B, HI 1911B, HI 1312S 2. Bath-water HI 1910B, HI 1130B, HI 1110S 3. Beer HI 1131B, HI 1111S 4. Bread HI 2031B, FC 200B, HI 2020S, FC 200S 5. Cheese FC 200B, FC 200S 6. Dairy products FC 911B, FC 100B 7. Dirty water HI 1910B, HI 1912B 8. Emulsions HI 1053B, HI 1050S 9. Environment HI 1230B, HI 1210S 10. Flasks HI 1331B, HI 1310S 11. Food industry general use FC 911B, FC 100B 12.
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 931300 HI 931301 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: 15-03-1996 D.Volpato - Engineering Manager On behalf of Hanna Instruments S.r.l.
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