User manual HANNA INSTRUMENTS HI 9813

[. . . ] 3 GENERAL DESCRIPTION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3 FUNCTIONAL DESCRIPTION, HI 9813 & HI 9813-5 . . . . . . . . . . . . . . . . . . . . . . 4 FUNCTIONAL DESCRIPTION, HI 9813-6 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5 SPECIFICATIONS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . [. . . ] · 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. °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. °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. · Stir briefly and wait a couple of minutes for the reading to adjust and stabilize. · 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. · 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. 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. [. . . ] 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. Operation of these instruments in residential areas could cause unacceptable interferences to radio and TV equipment. The glass bulb at the end of the electrode is sensitive to electrostatic discharges. During operation, ESD wrist straps should be worn to avoid possible damage to the electrode by electrostatic discharges. [. . . ]