Instruction Manual HI 9813 HI 9813-5 & HI 9813-6 Portable pH/EC/TDS/°C Meters www.hannainst.com These Instruments are in Compliance with the CE Directives Dear Customer, Thank you for choosing a Hanna product. Please read this instruction manual carefully before using the meter. This manual will provide you with the necessary information for correct use of the instrument, as well as a precise idea of its versatility. If you need additional technical information, do not hesitate to e-mail us at tech@hannainst.com. These instruments are in compliance with the directives. 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. Probes are warranted for a period of six months. This warranty is limited to repair or replacement free of charge. Damages due to accidents, misuse, tampering or lack of prescribed maintenance are not covered. If service is required, contact the dealer from whom you purchased the instrument. If under warranty, report the model number, date of purchase, serial number and the nature of the failure. If the repair is not covered by the warranty, you will be notified of the charges incurred. If the instrument is to be returned to Hanna Instruments, first obtain a Returned Goods Authorization number from the Customer Service department and then send it with shipping costs prepaid. When shipping any instrument, make sure it is properly packaged for complete protection. TABLE OF CONTENTS PRELIMINARY EXAMINATION ........................................................ 3 GENERAL DESCRIPTION ................................................................ 3 FUNCTIONAL DESCRIPTION, HI 9813 & HI 9813-5 ...................... 4 FUNCTIONAL DESCRIPTION, HI 9813-6 ........................................ 5 SPECIFICATIONS ........................................................................... 6 OPERATIONAL GUIDE ................................................................... 7 pH CALIBRATION ......................................................................... 9 pH VALUES AT VARIOUS TEMPERATURES ................................... 10 EC/TDS CALIBRATION ................................................................. 11 PROBE MAINTENANCE ................................................................ 12 BATTERY REPLACEMENT .............................................................. 13 ACCESSORIES ............................................................................. 14 CE DECLARATION OF CONFORMITY .............................................. 15 2 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 meter is supplied with: · Combination probe with 8-pin DIN connector & 1 m (3.3') cable: HI 1285-0, pH/EC/TDS probe, for HI 9813; HI 1285-5, pH/EC/TDS/°C probe, for HI 9813-5; HI 1285-6, pH/EC/TDS/°C probe with Cal-Check feature, for HI 9813-6 · HI 70007 pH 7.01 sachet, 1 pc · HI 70031 1413 µS/cm (1.413 mS/cm) sachet, 1 pc · HI 70442 1500 ppm sachet, 1 pc · HI 700661 Cleaning Solution sachet, 2 pcs · HI 50021 Check Solution sachet, 2 pcs, for HI 9813-6 only · Instruction Manual · 1 x 9V alkaline battery. Note: Save all packing material until you are sure that the instrument functions correctly. Any defective items must be returned in the original packing together with the supplied accessories. GENERAL DESCRIPTION HI 9813, HI 9813-5 and HI 9813-6 are complete, versatile and waterproof portable combined meters designed with utmost precision and simplicity. All the three models provide measurements of pH, EC and TDS ranges, which can be easily selected using a membrane keyboard on the front panel. Conductivity measurements are automatically compensated for temperature changes with a built-in temperature sensor. The temperature coefficient is fixed at 2%/°C. · HI 9813 is a pH/EC/TDS meter designed for simplicity of use in taking pH, mS/cm and ppm measurements. Suited for hydroponics, greenhouses, farming and ground water applications. · HI 9813-5 offers all the features of HI 9813 with the addition of temperature measurement in the °C scale. · HI 9813-6 is the most complete model, including the Cal-Check feature, which allows the user to easily check the probe calibration status at any time. 3 FUNCTIONAL DESCRIPTION HI 9813 AND HI 9813-5 1) 2) 3) 4) 5) 6) 7) 8) 9) 8-pin DIN connector for probe Liquid Crystal Display pH range selection key mS/cm (EC) range selection key EC/TDS calibration knob pH offset calibration knob ppm (TDS) selection key °C (Temperature) selection key, for HI 9813-5 only ON/OFF key 4 FUNCTIONAL DESCRIPTION HI 9813-6 1) 2) 3) 4) 5) 6) 7) 8) 9) 8-pin DIN connector for probe Liquid Crystal Display Green and Red LEDs for Cal-Check mS/cm / ppm (EC/TDS) range selection key EC/TDS calibration knob pH offset calibration knob pH/°C range selection key Check key ON/OFF key 5 SPECIFICATIONS pH 0.0 to 14.0 ppm 0 to 1999 mS/cm 0.00 to 4.00 °C 0.0 to 60.0 (HI 9813-5 & HI 9813-6) Resolution pH 0.1 ppm 1 mS/cm 0.01 °C 0.1 (HI 9813-5 & HI 9813-6) Accuracy pH ±0.1 (@20°C/68°F) ppm ±2% f.s. mS/cm ±2% f.s. °C ±0.5 (HI 9813-5 & HI 9813-6) Conversion Factor variable, 0.56 to 0.72 Typical EMC pH ±0.1 Deviation ppm ±2% f.s. mS/cm ±2% f.s. °C ±0.5 (HI 9813-5 & HI 9813-6) pH Calibration Manual, 1-point through offset trimmer EC/TDS Calibration Manual, 1-point through slope trimmer EC/TDS Temperature Automatic from 0 to 50°C (32 to 122°F) Compensation with ß = 2%/°C Probe (included) HI 1285-0 for HI 9813 HI 1285-5 for HI 9813-5 HI 1285-6 for HI 9813-6 Battery Type 1 x 9V alkaline (IEC 6LR61) Life approx. 150 hours of continuous use Environment 0 to 50°C (32 to 122°F); 100% RH Dimensions 165 x 75 x 45 mm (6.5 x 3.0 x 1.8") Weight 250 g (8.8 oz.) Range 6 OPERATIONAL GUIDE INITIAL PREPARATION Each meter is supplied complete with a 9V battery. Remove the battery compartment cover on the back of the meter and install the battery while paying attention to its polarity. Connect the probe to the DIN socket on the top of the meter by aligning the pins with the socket and pushing in the plug. Always remove the probe protective cap before taking any measurements, and make sure the meter has been calibrated. Turn the meter on by pressing the ON/OFF key. TAKING pH MEASUREMENTS If the probe has been left dry, soak the tip in HI 70300 storage solution for a few minutes to reactivate it. · To take a pH measurement simply submerge the tip (4cm/1½") of the probe into the sample to be tested. · Select the pH mode. · Stir briefly and wait a couple of minutes for the reading to adjust and stabilize. The display shows the pH value. · If measurements are taken in different samples successively, it is recommended to rinse (clean) the probe thoroughly to eliminate cross-contamination. After cleaning, it is recommended to rinse the probe with some of the next sample to be measured. TAKING EC/TDS MEASUREMENTS · Immerse the tip of the probe (4cm/1½") into the sample to be tested. If possible, use plastic beakers or containers to minimize any EMC interference. · Tap the probe lightly on the bottom of the beaker to remove any air bubbles which may be trapped inside the tip. 7 · Select the appropriate measurement range (EC or TDS). · Wait for a couple of minutes for the temperature sensor to reach thermal equilibrium. The display then shows the measurement automatically compensated for temperature with the appropriate following indication: "mS" tag indicates the meter is in EC mode, while no symbol indicates the meter is in TDS mode. TAKING TEMPERATURE MEASUREMENTS (not for HI 9813) · Submerge the tip (4cm/1½") of the probe into the sample to be tested. · Select the °C mode. · Stir briefly and wait a couple of minutes for the reading to adjust and stabilize. The display shows the temperature value. Note: If the display shows only a "1" on the far left hand side, the reading is out of range. Note: It is recommended to clean often the probe with HI 700661 Cleaning Solution. Note: After measurements have been completed, the instrument should be switched off, and the probe cleaned and covered with the protective cap. pH CALIBRATION For greatest accuracy, frequent calibration of the instrument is recommended. The instrument should be recalibrated for pH: a) Whenever the electrode is replaced. b) At least once a month. c) After testing aggressive chemicals. d) Where extreme accuracy is required. e) Whenever the CAL-CHECK test fails (HI 9813-6 only). PREPARATION Pour small quantities of pH 7.01 (HI 7007) or pH 4.01 (HI 7004) or pH 10.01 (HI 7010) solution into a clean beaker. To obtain accurate readings, use pH 7.01 (HI 7007) if you are going to measure neutral or close to neutral samples, pH 4.01 (HI 7004) if you are going to measure acidic samples or pH 10.01 (HI 7010) for alkaline measurements. If you need to calibrate to NBS standards, use pH 6.86 (HI 7006) instead of pH 7.01 and pH 9.18 (HI 7009) instead of pH 10.01. PROCEDURE · Connect the probe and switch the meter on, then press the "pH" key to display pH measurement. · Remove the protective cap from the probe, rinse and immerse it in the buffer and stir gently. Wait a couple of minutes for the reading to stabilize. · Take the temperature of the buffer solution, e.g. 10.0°C, as follow: for HI 9813, with a ChecktempC (or another accurate thermometer); for HI 9813-5 and HI 9813-6, select the °C mode and read the displayed value. · Adjust the pH calibration knob until the LCD shows the pH value at the above temperature (see the pH versus temperature chart). · The pH calibration is now complete. Note: The probe should be submerged approximately 4 cm (1½") into the solution. The ChecktempC thermometer has to be located close to the probe. Note: If turning the knob the needed value can not be reached, clean the probe (see the "Probe Maintenance" section). If also after the probe cleaning the value can not be reached, replace the probe. pH VALUES AT VARIOUS TEMPERATURES For temperature compensation during calibration, please refer to the following chart. TEMP °C °F 32 0 41 5 50 10 59 15 68 20 25 77 30 86 95 35 40 104 45 113 50 122 55 131 60 140 65 149 70 158 4.01 4.01 4.00 4.00 4.00 4.00 4.01 4.02 4.03 4.04 4.05 4.06 4.07 4.09 4.11 4.12 6.86 6.98 6.95 6.92 6.90 6.88 6.86 6.85 6.84 6.84 6.83 6.83 6.84 6.84 6.85 6.85 pH VALUES 7.01 9.18 9.46 7.13 9.39 7.10 9.33 7.07 9.27 7.04 9.22 7.03 9.18 7.01 9.14 7.00 9.10 6.99 9.07 6.98 9.04 6.98 9.01 6.98 8.99 6.98 8.97 6.98 8.95 6.99 8.93 6.99 10.01 10.32 10.24 10.18 10.12 10.06 10.01 9.96 9.92 9.88 9.85 9.82 9.79 9.77 9.76 9.75 For instance, if the buffer temperature is 25°C, the display should show pH 4.0 or 7.0 or 10.0. If the buffer temperature is 10°C, the display should show pH 4.0 or 7.0 or 10.1. 10 EC/TDS CALIBRATION Accessories needed: · Use HI 70031 (1413 µS/cm = 1.413 mS/cm) EC calibration solution or HI 70442 (1500 ppm) TDS calibration solution. Note: The conversion between EC and TDS is made by a built-in circuit, hence it is requested to calibrate the meter only in EC or TDS range. The other range is thus automatically calibrated. PROCEDURE · Pour approximately 4 cm (1½") of a conductivity calibration solution (e.g. HI 7031) into a beaker. If possible, use plastic beaker to minimize any EMC interference. · Immerse the probe in the solution. · Wait for a couple of minutes for thermal equilibrium to be reached. · Tap the probe on the bottom, then shake it lightly while rotating to make sure no air bubbles remain trapped inside the probe. · Press the "mS/cm" (or "ppm") key. · Turn the EC/TDS calibration knob until the display shows the EC or TDS reading at 25°C. 11 PROBE MAINTENANCE PERIODIC MAINTENANCE Inspect the probe 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 probe stem or bulb. Connector must be perfectly clean and dry. If any scratches or cracks are present, replace the electrode. Rinse off any salt deposits with water. CLEANING PROCEDURE For better accuracy in measurements and to ensure a good performance of the probe, a frequent cleaning is recommended. For this purpose, soak it in Hanna HI 700661 Cleaning Solution for 5 minutes. Note: For particular dirty (as for example protein, oil or grease) see the "Accessories" section for Hanna specific solutions. HI 9813-6 only: CAL-CHECK FEATURE / CLEAN & CAL PROCEDURE The unique Cal-Check feature allows the user to check the meter calibration status at any time. Simply follow the below procedure for a quick and easy operation. · Rinse the probe with water. · Immerse the probe in the HI 50021 Check Solution. Note ...