Related Manuals for Hanna Instruments HI 4107
Summary of Contents for Hanna Instruments HI 4107
- Page 1 HI 4007 Instruction Manual HI 4007 HI 4007 HI 4007 HI 4007 HI 4007 Half-cell HI 4107 HI 4107 HI 4107 HI 4107 HI 4107 Combination Chloride Ion Selective Electrode...
- Page 2 HI 4007 Chloride Half-cell HI 4007 Chloride Half-cell HI 4007 Chloride Half-cell HI 4007 Chloride Half-cell HI 4007 Chloride Half-cell HI 4107 Chloride Combination Electrode HI 4107 Chloride Combination Electrode HI 4107 Chloride Combination Electrode HI 4107 Chloride Combination Electrode HI 4107 Chloride Combination Electrode I.
- Page 3 III. III. III. III. III. Theory of Operation Theory of Operation Theory of Operation : : : : : Theory of Operation Theory of Operation The HI 4007 or HI 4107 chloride electrodes are potentio- metric devices used for the rapid determination of free chlo- ride ions in ground water, boiler water and drinking water.
- Page 4 IV. IV. IV. IV. IV. Design elements of the HI 4007 and HI 4107 Design elements of the HI 4007 and HI 4107 Design elements of the HI 4007 and HI 4107 Design elements of the HI 4007 and HI 4107 Design elements of the HI 4007 and HI 4107 electrodes electrodes...
- Page 5 Chloride Measurements for Chloride Measurements for Chloride Measurements for Chloride Measurements for Chloride Measurements Select appropriate Hanna Instruments standard and ISA from the list below: 0.1 M Sodium Chloride Standard, 500mL HI 4007-01 100 ppm Chloride standard, 500 mL HI 4007-02...
- Page 6 A user supplied oxidizing reagent may be used to supress interferences such as hydroxide, sulfide, bromide, ammo- nia or cyanide . Add 10 mL to 100 mL standard or sample. Permit sample to mix 10 minutes before measurements are taken. Discard samples and standards promptly as the chloride in these will oxidize upon standing making them unrelible.
- Page 7 Avoid large changes in temperature (thermal shock) as it may damage the sensor. HI 4007 Remove protective cover from sensor tip. Prepare HI 5315 reference electrode by filling electro- lyte reservoir with HI 7072 fill solution. Place sensor and reference electrodes into electrode holder and connect cable connectors to meter.
- Page 8 VIII. VIII. Electrode Preparation Electrode Preparation VIII. VIII. Electrode Preparation VIII. Electrode Preparation Electrode Preparation HI 4007 1. Remove protective cover from sensor tip. 2. Prepare reference electrode by filling outer electrolyte reservoir with HI 7072. 3. Place sensor and reference electrodes into electrode holder and connect cable connectors to meter.
- Page 9 6. Holding the body of the electrode gently press upper cap with your thumb. This permits the fill solution to drain out of the body. Release cap and verify elec- trode returns to its original position. (You may need to gently assist for this to occur).
- Page 10 IX. IX. IX. IX. IX. Quick Check of Electrode Slope Quick Check of Electrode Slope Quick Check of Electrode Slope Quick Check of Electrode Slope Quick Check of Electrode Slope Connect sensors to pH/mV/ISE meter Place meter in mV mode. Place 100 mL of DIW into a beaker with stir bar.
- Page 11 If dark deposits appears on polishing strip move the paper slightly and continue polishing. If the sensor slope just misses the suggested slope window, soaking the sensor in a standard may solve the problem. If the membrane is damaged, the response becomes extremely sluggish, or the slope of the electrode has decreased significantly, and procedures above have not helped, the sensor should be replaced.
- Page 12 Procedure 1) Follow sections VIII and IX to prepare sensors for measurement. 2) Follow section VI to prepare standards/ solution. Stan- dards should bracket and fall within the range of interest. Two mL HI 4000-00 ISA, or 10 mL acetate pH buffer or 10 mL of oxidizing reagent is added to 100 mL of both samples and standards.
- Page 13 XII. XII. XII. XII. Other Measurement T Other Measurement T Other Measurement T echniques echniques Other Measurement T echniques echniques XII. Other Measurement T echniques Known Addition (for Cl An unknown concentration can be determined by adding a known amount (volume and concentration) of measured ion to a known volume of the sample.
- Page 14 Titration Titration Titration Titration Titration A chloride electrode may be used as an indicator to follow the progress of a chloride tiration with silver nitrate. The electrode can be used in colored samples where other indicators suffer from interferences. During the titration the sensor follows the decrease in chloride concentration while small additions of silver nitate titrant are added.
- Page 15 XV. XV. XV. XV. XV. Conversion tables Conversion tables Conversion tables Conversion tables Conversion tables - - - - - For Cl For Cl Multiply by Multiply by For Cl Multiply by For Cl For Cl Multiply by Multiply by Moles/L (M) to ppm (mg/L) 3.500 x 10 ppm (mg/L) to M (moles/L)
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Page 16: Warranty
Damage due to accidents, misuse, misapplication, tampering or lack of prescribed maintenance is not covered. Hanna Instruments reserves the right to modify the design, construction or appearance of its products without advance notice.
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