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Related Manuals for Hach ISENH4181
Summary of Contents for Hach ISENH4181
- Page 1 DOC022.53.80029 ISENH4181 05/2021, Edition 5 User Manual...
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Page 3: Table Of Contents
Table of Contents Section 1 Product overview ................. 3 Section 2 Specifications ..................3 Section 3 Safety information ................4 3.1 Intended use ....................... 4 3.2 Use of hazard information ..................4 3.3 Precautionary labels ..................... 5 3.4 Product hazards ....................5 Section 4 Preparation for use ................ - Page 4 Table of Contents...
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Page 5: Section 1 Product Overview
Section 1 Product overview The Intellical ISENH4181 series probes are digital, combination ion-selective electrodes (ISE) that measure the concentration of ammonium in water samples. The Ammonium Ionic Strength Adjuster (ISA) does not adjust the pH of the sample. Thus, the probes measure the ammonium ion (NH... -
Page 6: Section 3 Safety Information
Specifications Details Response time in linear region < 60 seconds (application dependent) Minimum sample volume 25 mL Minimum immersion depth 25.4 mm (1 in.) Body material (standard) Epoxy Membrane Solid-state PVC membrane Reference electrolyte Non-refillable Dritek gel reference element Cable connection M12 digital output and connector Dimensions Diameter: 12 mm (0.47 in.) -
Page 7: Precautionary Labels
3.3 Precautionary labels Read all labels and tags attached to the instrument. Personal injury or damage to the instrument could occur if not observed. A symbol on the instrument is referenced in the manual with a precautionary statement. Electrical equipment marked with this symbol may not be disposed of in European domestic or public disposal systems. -
Page 8: Calibration Procedure
• Use the single display mode for calibration when more than one probe is connected to the meter (if applicable). • Calibrate the probes and verify the calibration regularly for best results. Use the meter to set calibration reminders. • The calibration data is stored in the probe. When a calibrated probe is connected to a different meter with the same calibration options, a new calibration is not necessary. -
Page 9: Section 6 Sample Measurement
9. Do steps 10. Save the through to read the calibration. value of the remaining standard solutions. Section 6 Sample measurement The procedure that follows is applicable to meters that can connect to Intellical ISE probes. Refer to the applicable meter documentation for meter operation and probe-specific settings. 6.1 Sample measurement notes Read the notes that follow before sample measurements. -
Page 10: Low-Level Measurements
5. Put the probe in 6. Shake the probe 7. Stir for 30 to the sample with the from side to side to 60 seconds, then sensor fully in the refresh the reference read the ammonium sample. Do not put junction and remove concentration of the the probe on the... -
Page 11: Section 7 Verify The Calibration
Table 1 Interferences Interference Selectivity coefficient Potassium (K 0.1 (interferes more) Sodium (Na 0.002 Magnesium (Mg 0.00002 Lithium (Li 0.00003 Calcium (Ca 0.00006 (interferes less) Section 7 Verify the calibration Measure the value of a fresh standard solution at regular intervals to make sure the result is accurate. -
Page 12: Section 8 Maintenance
Section 8 Maintenance Regular maintenance is necessary for the best accuracy, stabilization time and life of the probe. Fully rinse the probe with deionized water between measurements to keep the probe clean. 8.1 Clean the probe Rinse the probe with deionized water regularly to remove mineral or sample buildup on the sensing element. -
Page 13: Slope Check
Table 2 Troubleshooting information (continued) Problem Possible cause Solution The sample pH with ISA is Make sure that the sample pH incorrect. after the ISA is added is less than pH 8.5. Make sure to add one ISA pillow to each 25 mL of Sample properties cause slow sample. -
Page 14: Section 10 Consumables
Table 3 Standard solution volumes and concentrations Measured sample Volume of standard to Concentration of standard solution concentration 1 to 2 mg/L 0.5 mL 100 mg/L NH —N 3 to 6 mg/L 1.0 mL 100 mg/L NH —N 7 to 15 mg/L 0.3 mL 1000 mg/L NH —N... -
Page 15: Accessories
10.1 Accessories Description Quantity Item no. Beaker, polypropylene, 50 mL, low form 108041 Disposable wipes, 11 x 22 cm 280/pkg 2097000 Wash bottle, polyethylene, 500 mL 62011 Probe stand for standard Intellical probes 8508850 English 13... - Page 16 14 English...
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