Hanna Instruments HI 8819 Instruction Manual Download Page 20 | Manualshive

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MANBNCONR2 01/99

h t t p : / / w w w . h a n n a i n s t . c o m

PRINTED IN PORTUGAL

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Summary of Contents for HI 8819

Page 1: ... µS 80 000 µS OFF ON Standard Conductivity at 25 C Standard HI 7033 HI 7031 HI 7030 HI 7034 Conductivity TEMPERATURE COEFFICIENT 90 µS 1413 µS 12 880 µS 80 000 µS OFF ON 1999 µS 199 9 µS 99 9 mS 19 99 mS 0 0 5 1 1 5 2 2 5 HI 8819 HI 8820 COND TEMP 1999 µS 199 9 µS 99 9 mS 19 99 mS h t t p w w w h a n n a i n s t c o m These Instruments are in Compliance with the CE Directives ...

Page 2: ...compliance with CSA UL and EN 50081 1 and EN 50082 1 directives TABLE OF CONTENTS TABLE OF CONTENTS TABLE OF CONTENTS TABLE OF CONTENTS TABLE OF CONTENTS PRELIMINARY EXAMINATION 3 GENERAL DESCRIPTION 3 KEYBOARD AND REAR PANEL 4 SPECIFICATIONS 5 CONDUCTIVITY MEASUREMENTS 6 CALIBRATION 8 CONDUCTIVITY VS TEMPERATURE CHART 12 TEMPERATURE COMPENSATION 13 DETERMINATION OF THE TEMPERATURE COEFFICIENT OF ...

Page 3: ...meters designed for simplicity of use in measuring electrical conduc tivity in liquids Four ranges of conductivity measurements are provided to cover every application from deionized water to brine The conduc tivity probe does not require changing or re calibration when switching from one range to another The probe is made of glass with 4 platinum rings that are corrosion resistant It is also suit...

Page 4: ... select the display of conductivity readings or tem perature settings for compensation for HI8819 only 199 9 µS To select the range 0 0 to 199 9µS cm 1999 µS To select the range 0 to 1999µS cm 19 99 mS To select the range 0 00 to 19 99 mS cm 99 9 mS To select the range 0 0 to 99 9mS cm TEMPERATURE Knob To manually set to the temperature compen sation of the reading for HI8819 only TEMPERATURE COEF...

Page 5: ...0005 or HI710006 included Environment 0 to 50 C 32 to 122 F 95 RH Dimensions 230x 170x 70mm 9 1 x 6 7 x 2 7 Weight 1 Kg 2 2 lbs HI8820 Range 0 0 to 199 9 µS cm 0 to 1999 µS cm 0 00 to 19 99 mS cm 0 0 to 99 9 mS cm Resolution 0 1 µS cm 1 µS cm 0 01 mS cm 0 1 mS cm Accuracy 1 Full Scale excluding probe error Typical EMC 2 Full Scale Deviation Calibration Manual single point through trimmer Temperatu...

Page 6: ...y on the bottom of the recipi ent to remove any air bubbles which may have being trapped inside the sleeve Take the temperature of the solution with a CHECKTEMP or a glass thermometer Press the COND TEMP key to select tempera ture mode Adjust the TEMPERATURE knob until the LCD displays the temperature of the solution Press the COND TEMP key to select the con ductivity measurement range If the disp...

Page 7: ...RE COEFFICIENT knob to the value of the solution See page 15 for the procedure to select the correct coefficient value Before taking any measurement allow a few minutes for the reading to stabilize As soon as the thermal equilibrium is reached 3 or 4 minutes the reading stops drifting The conductivity reading displayed has been automatically com pensated for temperature variations after 2 or 3 min...

Page 8: ...contamination of the calibration solution and secure higher accuracy When possible use plastic beakers to minimize any EMC interfer ences PROCEDURE FOR HI8819 Pour a small quantity of the conductivity so lution into a plastic beaker e g HI7030 or HI8030 12 88 mS cm 25 C Immerse the conductivity probe in the solu tion submerging the holes of the sleeve 0 5cm below Make sure that no air bubbles are ...

Page 9: ...river adjust the trimmer on the rear panel until the display shows the conductivity reading at the tempera ture of the solution noted earlier see the conductivity vs temperature chart on page 13 e g 11 19 mS Calibration is now completed and the instrument is ready for use TO CHECK THE CALIBRATION Press the COND TEMP key to display the tem perature Adjust the TEMPERATURE knob to display the tempera...

Page 10: ... beaker Immerse the conductivity probe in the solution sub merging the holes of the sleeve 0 5 cm below Make sure that no air bubbles are trapped inside the glass sleeve Wait for 2 or 3 minutes for thermal equilibrium Switch the instrument on by pressing the ON OFF key Select the appropriate conductivity range e g 19 99 mS for HI7030 HI8030 99 9 mS for HI7034 HI8034 1999µS for HI7031 HI8031 199 9 ...

Page 11: ...rence temperature refer to the conductivity vs temperature charts on page 12 for the appropriate conductivity reading at the reference temperature E g If you prefer to standardize the temperature to 20 C 68 F rather than 25 C 77 F using HI7030 HI8030 adjust the trim mer to read 11 67 mS i e 11670 µS as indicated on the chart on page 12 All subsequent measurements will be compensated to 20 68 F The...

Page 12: ...m µS cm µS cm µS cm 0 32 7150 776 64 48300 65400 2760 5 41 8220 896 65 53500 74100 3180 10 50 9330 1020 67 59600 83200 3615 15 59 10480 1147 68 65400 92500 4063 16 60 8 10720 1173 70 67200 94400 4155 17 62 6 10950 1199 71 68500 96300 4245 18 64 4 11190 1225 73 69800 98200 4337 19 66 2 11430 1251 74 71300 100200 4429 20 68 11670 1278 76 72400 102100 4523 21 69 8 11910 1305 78 74000 104000 4617 22 7...

Page 13: ...onductivity on temperature is expressed as a relative change per degree Celsius at a particular temperature commonly as percent C Acids alkalis and concentrated salt solutions have lower values typically 1 5 C Since a small difference in temperature causes a large change in conductivity readings particularly at high and low temperatures the readings are usually normalized at 25 C The HI8819 manual...

Page 14: ...e conductivity reading Ct 4 The temperature coefficient ß of the solution is calculated with the formula Ct C25 ß 100 x t 25 x C25 The above procedure is suitable for determining the temperature coefficient in the laboratory where the temperature of the solution can be determined and controlled If this is not possible e g during on site measurements the following procedure should be used a Immerse...

Page 15: ... every series of measurements If a more thorough cleaning is required remove the glass sleeve and clean the probe with a cloth or a nonabra sive detergent After cleaning the probe re calibrate the instrument The four ring platinum probe body and sleeve are in glass For this reason great care while handling the probe must be taken ...

Page 16: ... µS cm µmho cm 230mL HI 7039L 5000 µS cm µmho cm 460mL HI 7039M 5000 µS cm µmho cm 230mL CONDUCTIVITY BUFFER SOLUTIONS IN FDA AP PROVED BOTTLES HI 8030L 12880 µS cm µmho cm 460 mL HI 8031L 1413 µS cm µmho cm 460 mL HI 8033L 84 µS cm µmho cm 460 mL HI 8034L 80000 µS cm µmho cm 460 mL HI 8035L 111800 µS cm µmho cm 460 mL HI 8039L 5000 µS cm µmho cm 460 mL CONDUCTIVITY PROBES HI 7685 This probe for H...

Page 17: ...ometer range 50 0 to 150 0 C HI710005 Voltage adapter from 115VAC to 12VDC HI710006 Voltage adapter from 230VAC to 12VDC HI 731326 Small screwdrivers length 90 mm for calibration purposes 20 pcs HI 76405 Electrode holder MANBNCONR2 Instruction Manual ...

Page 18: ...ure 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 To validate yo...

Page 19: ...sary steps to correct interferences The metal band at the end of the sensor is sensitive to electrostatic discharges Avoid touching this metal band at all times During calibration of instruments ESD wrist straps should be worn to avoid possible damage to the sensor by electrostatic discharge Any variation introduced by the user to the supplied equipment may degrade the instruments EMC performance ...

Page 20: ...MANBNCONR2 01 99 h t t p w w w h a n n a i n s t c o m PRINTED IN PORTUGAL ...

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