Hach APA 6000 Operation Manual

Hach APA 6000 Operation Manual

High range hardness process analyzer

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Catalog Number 62000-18
APA 6000™ High Range Hardness Process Analyzer
Operation Manual
© Hach Company, 2002, 2005. All rights reserved. Printed in the U.S.A.
eac April 2005, Edition 2

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Summary of Contents for Hach APA 6000

  • Page 1 Catalog Number 62000-18 APA 6000™ High Range Hardness Process Analyzer Operation Manual © Hach Company, 2002, 2005. All rights reserved. Printed in the U.S.A. eac April 2005, Edition 2...
  • Page 2: Table Of Contents

    Table of Contents Safety Precautions ..............................3 Specifications ................................4 Section 1 Instrument Overview ........................7 1.1 How to Use the Manuals ............................. 7 1.2 General Description ............................7 1.2.1 Instrument Enclosure..........................7 1.2.2 Autoburette Module ........................... 7 1.2.3 Colorimeter Module, Holding Coil, and Reaction Coil ................8 1.2.4 Rotary Valve Module ..........................
  • Page 3: Safety Precautions

    Safety Precautions Page 3 Safety Precautions 6200018safety.fm...
  • Page 4: Specifications

    Specifications Specifications are subject to change without notice. See instrument-specific specifications in the APA 6000™ Process Analyzer Manual, Cat. No. 62005-18. Performance Range:10 to 1000 mg/L as CaCO Note: If sample is outside the specified instrument range, a sample out error may occur.
  • Page 5 Operation DANGER Handling chemical samples, standards, and reagents can be dangerous. Review the necessary Material Safety Data Sheets and become familiar with all safety procedures before handling any chemicals. DANGER La manipulation des échantillons chimiques, étalons et réactifs peut être dangereuse. Lire les Fiches de Données de Sécurité...
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  • Page 7: Section 1 Instrument Overview

    The reagent containers are sized to provide approximately 30 days of continuous operation. The reagents are factory-filled in one-liter containers and meet Hach quality standards. Prepare Reagent 2 prior to use by mixing one bottle of Indicator Powder (Cat. No. 27931-35) into 1 liter of Buffer Solution (Cat.
  • Page 8: Colorimeter Module, Holding Coil, And Reaction Coil

    0.030 inch ID Tefzel. The small diameter allows for low-volume and high- flow rates. A higher flow rate, along with properly applied sample conditioning, prevents the tubing from plugging. General information for replacing the tubing is presented in the APA 6000 Installation and Maintenance Manual (Cat. No. 62005-18). Page 8 General Description 6200018overview.fm...
  • Page 9 Section 1 CAUTION PRUDENCE To familiarize yourself with Pour se familiariser avec les précautions à prendre lors de la manipulation, les handling precautions, dangers dangers et les procédures d'urgence, toujours lire les Fiches de Données de and emergency procedures, Sécurité des Produits avant de manipuler les récipients, les réservoirs et les always review the Material Safety systèmes de distribution contenant les réactifs chimiques et les solutions Data Sheets prior to handling...
  • Page 10 Section 1 Figure 1 Plumbing Diagram for a High Range Hardness Analyzer Table 1 Replacement Tubing Lengths for Figure 1 Item Description Length From... To... Reaction coil - part of Temperature Control Block Call Service Port 1 Reaction coil Tefzel tubing, 0.03 ID x 0.062 OD 60 cm (24 in.) Port 2 Sample 1...
  • Page 11: Vortex Sample Conditioning Block

    Regular maintenance of the sample conditioning is required for proper operation. 1.2.8 High Range Hardness Reagents The APA 6000™ High Range Hardness Process analyzer uses six reagents. Each is supplied in a 1-L bottle designed to provide reagents for 30 days of continuous use.
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  • Page 13: Section 2 Theory Of Operation

    Section 2 Theory of Operation The APA 6000™ High Range Hardness Process Analyzer is designed to provide reproducible results through consistent solution handling. Every step in an analysis is performed the same way each time, ensuring accurate results. Accuracy can be verified and established by measuring grab samples with a known concentration of analyte.
  • Page 14: Reagent Consumption

    Section 2 4. A portion of the solution in the mixer is aspirated out and the buffer/indicator reagent is added. This solution aliquot and the reagent are both dispensed back into the mixer. 5. The solution in the mixer may now start to turn red. 6.
  • Page 15: Section 3 Sequence Of Instrument Events

    Section 3 Sequence of Instrument Events Table 4 Initialization Valve Position Volume (µL) Autoburette Action Mixer 1000 Aspirate Waste 1000 Dispense Mixer Aspirate Mixer Aspirate Waste 1100 Dispense Between ports 1600 Aspirate Detector 1000 Dispense Detector Dispense Table 5 Measurement Mode Valve Position Volume (µL) Autoburette Action...
  • Page 16 Section 3 Table 5 Measurement Mode (continued) Valve Position Volume (µL) Autoburette Action Detector 1400 Dispense Mixer Aspirate Waste Dispense Table 6 Cleaning Valve Position Volume (µL) Autoburette Action Mixer 1000 Aspirate Detector 1000 Dispense Between ports 1600 Aspirate Detector 1600 Dispense Between ports...
  • Page 17 Section 3 Table 7 Prime All Valve Position Volume (µL) Autoburette Action Between ports 1600 Aspirate Waste 1600 Dispense Between ports 1600 Aspirate Waste 1600 Dispense Mask acid 1000 Aspirate Waste 1000 Dispense Buffer/Indicator 1000 Aspirate Waste 1000 Dispense Titrant 1000 Aspirate Waste...
  • Page 18 Section 3 Table 8 Calibration Valve Position Volume (µL) Autoburette Action CAL STEP 1 Standard 1 Aspirate Mask acid Aspirate Standard 1 Aspirate Mixer 1000 Dispense Mixer Aspirate Mixer Aspirate Waste 1050 Dispense Standard 1 1500 Aspirate Mask acid Aspirate Mixer 1000 Dispense...
  • Page 19 Section 3 Table 8 Calibration (continued) Valve Position Volume (µL) Autoburette Action CAL STEP 2 Standard 1 Aspirate Mask acid Aspirate Standard 1 Aspirate Mixer 1000 Dispense Mixer Aspirate Mixer Aspirate Waste 1050 Dispense Standard 1 1500 Aspirate Mask acid Aspirate Mixer 1000...
  • Page 20 Section 3 Table 8 Calibration (continued) Valve Position Volume (µL) Autoburette Action CAL STEP 3 Standard 2 Aspirate Mask acid Aspirate Standard 2 Aspirate Mixer 1000 Dispense Mixer Aspirate Mixer Aspirate Waste 1050 Dispense Standard 2 1500 Aspirate Mask acid Aspirate Mixer 1000...
  • Page 21 Section 3 Table 8 Calibration (continued) Valve Position Volume (µL) Autoburette Action CAL STEP 4 Standard 2 Aspirate Mask acid Aspirate Standard 2 Aspirate Mixer 1000 Dispense Mixer Aspirate Mixer Aspirate Waste 1050 Dispense Standard 2 1500 Aspirate Mask acid Aspirate Mixer 1000...
  • Page 22: Section 4 Parameter Specific Functions

    Section 4 Parameter Specific Functions 4.1 Calibration History This option allows you to review past calibration data. 1. Press the MENU key to start from the Main Menu. 2. Select Sensor Menu and press ENTER. 3. Select the sensor by name and press ENTER. 4.
  • Page 23: Section 5 Bench Method Procedure

    Section 5 Bench Method Procedure 5.1 Standardization Standardize Reagent 3 with Standard 2 (1000 mg/L as CaCO ) to determine the titer value of Reagent 3 before testing samples for total hardness. Perform a standardization before any sample analysis, as reagents may change over time.
  • Page 24: Testing Samples For Total Hardness

    Section 5 Repeat Average the three steps 1-8 twice. values for the titer of Reagent 3 9. Repeat steps 1-8 twice. 10. Use the average value for the titer of Reagent 3. 5.3 Testing Samples for Total Hardness Refer to Table 9 to choose between using a buret or a digital titrator, depending on the sample concentration.
  • Page 25: Total Hardness Digital Titrator ® Method

    Section 5 ® 5.3.1 Total Hardness Digital Titrator Method Refer to Table 10 on page 24. 1. If a Digital Titrator 2. Insert a clean delivery Turn the delivery knob 4. Refer to Table 10 is used, fill a clean and tube into the titration to eject a few drops of choose the size of the...
  • Page 26: Total Hardness Buret Method

    Section 5 5.3.2 Total Hardness Buret Method Refer to Table 11 on page 24. 1. If a buret is used, fill 2. Refer to Table 11 3. Using the volumetric 4. Dilute to about the a 25-mL buret with choose the size of the pipet, transfer the sample 100-mL mark with Reagent 3.
  • Page 27: Section 6 Replacement Parts

    APA 6000™ High Range Hardness Reagent 2 Kit........8 mL ....each..27936-00 APA 6000™ High Range Hardness Reagent 3.......... 5–20 mL ....1 L..27937-53 APA 6000™ High Range Hardness Standard 2, 1000 mg/L....60 mL (cal. only)..... 1 L..27933-53 Water, deionized ..................<100 mL ....4 L....272-56 Required Apparatus for Bench Method Buret, 25 mL, Class A, certified ...............
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