Hach CL17 Instrument Manual
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Hach CL17 Instrument Manual

Chlorine analyzer
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Catalog Number 54400-18
CL17 CHLORINE ANALYZER
INSTRUMENT MANUAL
06/04 4ed

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  • Page 1 Catalog Number 54400-18 CL17 CHLORINE ANALYZER INSTRUMENT MANUAL 06/04 4ed...
  • Page 2 © Hach Company, 2001, 2004. All rights reserved. Printed in the U.S.A.
  • Page 3 Catalog Number 54400-18 CL17 Chlorine Analyzer INSTRUMENT MANUAL © Hach Company, 2000, 2001, 2004. All rights reserved. Printed in the U.S.A. eac/dp 06/04 4ed...

  • Page 4: Table Of Contents

    Table of Contents Safety Precautions............................ 4 Specifications............................6 INSTALLATION ............................9 Section 1 Installation..........................11 1.1 Unpacking the Instrument......................... 11 1.2 Instrument Environmental Considerations ..................11 1.3 Mounting the Instrument on the Wall ....................11 1.4 Plumbing Connections........................14 1.5 Installing the Sample Line......................... 16 1.6 Sample Conditioning.........................
  • Page 5 Method of Analysis ..........................58 Principle of Operation ..........................59 Appendix B Hach Network Interface Card for the CL17 Chlorine Analyzer ........61 Attaching the CL17 Analyzer to the Network Via an AquaTrend Interface ..........62 Adding the Measurement to a Channel ....................62 Alarms and Warnings ..........................

  • Page 6: Safety Precautions

    Safety Precautions Please read this entire manual before unpacking, setting up, or operating this instrument. Pay particular attention to all danger and caution statements. Failure to do so could result in serious injury to the operator or damage the equipment. To ensure the protection provided by this equipment is not impaired, do not use or install this equipment in any manner other than that which is specified in this manual.
  • Page 7 Safety Precautions Section 3 Maintenance on page 45 Section 3.1 Scheduled Maintenance on page 45 Section 3.2.1 Fuse Replacement on page 48 Section 3.2.3 Cleaning the Colorimeter on page 49 Page 5 Safety Precautions 54400_Safety.fm...

  • Page 8: Specifications

    Specifications Specifications are subject to change without notice. General Display: LCD, 3½-digit measurement readout and six-character alphanumeric scrolling text line. Enclosure: IP62-rated with the gasketed door latched Instrument Dimensions: 34.3 cm width x 41.9 cm height x 19.1 cm depth (13.5 in.
  • Page 9 (high or low) or as a system warning indicator or a system alarm indicator. ® Optional External Outputs: Hach AquaTrend Network Interface Environmental Storage Temperature Range: -40 to 60 °C (-40 to 140 °F) Operating Temperature Range: 5 to 40 °C (41 to 104 °F)
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  • Page 11: Installation

    INSTALLATION DANGER Some of the following manual sections contain information in the form of warnings, cautions and notes that require special attention. Read and follow these instructions carefully to avoid personal injury and damage to the instrument. Only personnel qualified to do so should conduct the installation/maintenance tasks described in this portion of the manual.
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  • Page 13: Unpacking The Instrument

    Cat. No. 54443-00, are included in addition to reagents. If damage is evident or the shipment is incomplete, please contact the Customer Service Department, Hach Company, Loveland, Colorado for instructions. The toll-free number is 800-227-4224. Contents of the Installation and Maintenance kits are listed in on...
  • Page 14 Section 1 Figure 1 CL17 Instrument Dimensions (1 of 3) ″ Air Purge Quick Connect 4.02 ″ (102.17 mm) 4 x 1/4 Recommended .25 O.D. Polyethylene Tubing ″ 1.56 Mounting Bolt (Cat. No. 47438-00) (39.68 mm) Relay/Alarm Contact Connections Chlorine...
  • Page 15 Section 1 Figure 2 CL17 Instrument Dimensions (2 of 3) ″ 2.78 Bottle (70.61 mm) Vents ″ 4.50 Connection (114.30 mm) Drawing Number: 54400-87 ″ Revision: A, 02-16-00 7.50 (190.50 mm) Mounting Pattern ″ 12.35 (313.81 mm) Page 13 Mounting the Instrument on the Wall...

  • Page 16: Plumbing Connections

    Section 1 Figure 3 CL17 Instrument Dimensions (3 of 3) ″ 19.95 (506.78 mm) ″ 15.21 (386.30 mm) ″ R 14.89 (378.18 mm) Overflow Drain Recommended .50 I.D. Tubing ″ 7.06 (179.39 mm) ″ 0.06 (1.59 mm) Clearance For Vents .50 I.D.
  • Page 17 Section 1 DANGER ATTENTION The ½-inch enclosure drain must Afin que l'analyseur soit hermétique à la poussière, le drain d'½ pouce du boîtier have at least 3 feet of tubing doit être connecté à un tuyaux d'au moins un mètre. Ne jamais obstruer le drain. installed to ensure the analyzer Le drain doit rester libre pour permettre l'évacuation de l'eau en cas de fuite.

  • Page 18: Installing The Sample Line

    Section 1 1.5 Installing the Sample Line Selecting a good, representative sampling point is important for optimum performance of your instrument. The sample analyzed must be representative of the condition of the entire system. Erratic readings will be seen if sample is drawn from a location too close to points of chemical additions to the process stream, if mixing is inadequate, or if the chemical reaction is incomplete.

  • Page 19: Assembling The Sample Conditioning Kit

    Section 1 1.6.1 Assembling the Sample Conditioning Kit Refer to the tips below and to the complete system diagram in Figure 6 assemble the components. ® • Seal all threaded fittings with two wraps of Teflon tape (provided). • Two stops should be felt when installing tubing into the push-in fitting. The first is when the tubing clears the gripper ring, and the second is when the tubing bottoms out in the fitting.
  • Page 20 Section 1 Table 1 Sample Conditioning Parts List Item Description Catalog Number Clamp, Conduit Hanger, 1-inch 47349-00 Coupling, 1-inch, SCH 40, PVC pipe 54175-00 Coupling, ½-inch FPT x ½ FPT PVC 54176-00 Fitting, Reduce Bushing, PVC, Hex 23002-00 Fitting, Stem Adapter, ½-inch O.D., ¼ NPT 54180-00 Fitting, Tee, 1-inch x 1-inch 46622-00...
  • Page 21 Section 1 Figure 6 Sample Conditioning Kit Page 19 Sample Conditioning 54400_install.fm...

  • Page 22: Optional Air Purge

    Section 1 Optional Air Purge Air purge may be necessary if the analyzer is located in an environment with high humidity and/or caustic vapors. The goal is to maintain a slight positive pressure in the instrument with dry instrument air. The air purge connection is located on the left side of the instrument enclosure.

  • Page 23: Power Connections

    Figure For process or industrial applications, the national electrical codes of most countries require that AC service feeds be hard-wired and contained in conduit systems. The CL17 Chlorine Analyzer has been designed to conform to this requirement. Figure 8 Locating and Removing the Customer Access Cover...
  • Page 24 Section 1 Hach recommends conduit for two reasons: 1. It is generally required by most local electrical codes. 2. Use of metal conduit can improve immunity to lightning surges and AC power transients. Additionally, electrical and instrumentation standards require a local means of removing power from the product.

  • Page 25: Wiring The Instrument

    Section 1 1.8.2 Wiring the Instrument Connect the unpowered wires to the instrument power terminal as follows: 1. Strip the outside insulation of each wire back ¼-inch. 2. Connect the three wires to the terminal using the information in the following table.

  • Page 26: Voltage Selection For Alternate Voltage Operation

    Section 1 1.8.3 Voltage Selection for Alternate Voltage Operation The instrument is switched for 115-volt operation when it leaves the factory. Note: The voltage selector switch must be set properly for the line To convert the instrument for 230-volt operation, slide the AC line conversion voltage to be used.
  • Page 27 Section 1 3. Remove the connector from the instrument if desired. 4. Insert the wire ends into the connector until the insulation seats against the connector. See Figure 12. (Do not seat the insulation under the terminal pinch plates.) 5. Replace the connector if necessary and supply power to the instrument. Figure 12 Proper Wire Preparation and Insertion Strip ¼...

  • Page 28: Recorder Output Connections

    Section 1 1.8.5 Recorder Output Connections The recorder output is a 4–20 mA current-source output. Make recorder connections with twisted-pair shielded wire and connect the shield at the recorder, controlled component end or at the analyzer end. Do not connect the shield at both ends of the cable.

  • Page 29: Installing Pump/Valve Pinch Plate

    Section 1 1.9 Installing Pump/Valve Pinch Plate To eliminate the effects of constant pressure on the pump tubes during shipment and storage, the pinch plate and screws for the pump/valve module are shipped in the installation kit and the pump tubes are held in place with tape.
  • Page 30 Section 1 Figure 16 Installing Pump/Valve Module Pinch Plate Align Pinch Plate with Pump/Valve Module. Chlorine MENU IP 62 CAUTION : FOR USE IN A CONTROLLED ENVIRONMENT. REFER TO MANUAL FOR ENVIRONMENTAL CONDITIONS. mg/L ATTENTION : EN CAS D’UTILISATION EN ATMOSPHERE CONTROLEE, CONSULTER µg/L LA NOTICE TECHNIQUE.

  • Page 31: Operation

    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 33: Section 2 Starting The Instrument

    Section 2 Starting the Instrument 2.1 Keypad and Display Information The instrument display defaults to normal Concentration Measurement Mode unless keys are pressed to change it. Table 2 shows the functions for each key. Figure 17 Analyzer Keypad and Display MENU mg/L EXIT...

  • Page 34: Introduction

    Section 2 2.2 Introduction Preliminary tasks necessary for placing the instrument in operation are defined below in their recommended sequence. Once these preliminary steps are performed, the instrument will be operational. 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,...

  • Page 35: Installing The Reagents

    Section 2 2.3 Installing the Reagents The analyzer requires two reagents, a buffer solution and an indicator. Space is provided in the instrument enclosure for a 500-mL bottle of each of the reagents. Two reagents used in the chlorine analysis are installed in the analyzer hydraulic section and replenished at monthly intervals.

  • Page 36: Installing The Stir Bar

    Section 2 2.4 Installing the Stir Bar A small stir bar for the sample cell in the colorimeter assembly is included in the installation kit furnished with the instrument. The stir bar must be installed for the instrument to operate properly. Install the stir bar as follows: 1.

  • Page 37: Supplying Sample

    Set the POWER (–/O) switch to ON (–) and allow the analyzer to operate for approximately two hours to ensure the system is completely wetted with reagents and sample. 2.7 Instrument Menu Structure The major menus in the CL17 Analyzer consist of ALARMS RECRDR MAINT .
  • Page 38 Section 2 • CAL DEFAULTS—(Calibration Default Settings) Press to return ENTER the calibration settings back to factory defaults and set the Gain to 1.0 and the Offset to 0. Use this feature to remove calibrations that are causing a MARG G or MARG Z to be displayed. •...

  • Page 39: Alarm Setup

    Section 2 • DIAG OUTPUT—Pressing will momentarily indicate ON at the ENTER ® display and any optional LonWorks interfaces present will receive diagnostic data. • KEYBOARD LOCKOUT—Press then use the keys to ENTER ARROW toggle between ON and OFF. Press to select the displayed option.

  • Page 40: Setting The Recorder Output Span

    System Alarm status and shuts off. The CL17 is supplied with the recorder output set at maximum range. At maximum range, a chlorine concentration of 0 mg/L provides an output of 4 mA and a concentration of 5 mg/L gives an output of 20 mA.

  • Page 41: Maintenance Menus

    Section 2 Alternatively, the output can be bracketed between 2–4 mg/L to control chemical feeds, or the signal can be inverted by assigning a higher mg/L reading for REC LO and a lower mg/L reading to REC HI. Initially, select an output span that will cover the expected range of chlorine concentration in the sample.

  • Page 42: Calibration

    DOWN ARROW ENTER 2.7.5 Calibration The CL17 Chlorine Analyzer is factory calibrated. A built-in electronic curve is preprogrammed into the instrument. This instrument does not require recalibration unless specified by your regulatory agency for compliance reporting purposes. If you are required to do a two-point calibration or if your sample stream chlorine concentration is typically less than 0.5 mg/L, follow the instructions in...
  • Page 43 Section 2 2.7.5.1 Calibration on Known Standards 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...
  • Page 44 Section 2 4. Prepare a chlorine standard solution with a value between 3 and 5 mg/L. Determine the value of the standard to the nearest 0.01 mg/L. 5. Remove the container of zero reference water and substitute the chlorine standard solution. Allow the analyzer to run on the standard solution for approximately 10 minutes.

  • Page 45: Maintenance

    MAINTENANCE DANGER Some of the following manual sections contain information in the form of warnings, cautions and notes that require special attention. Read and follow these instructions carefully to avoid personal injury and damage to the instrument. Only personnel qualified to do so should conduct the /maintenance tasks described in this portion of the manual.
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  • Page 47: Scheduled Maintenance

    Section 3 Maintenance 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...

  • Page 48: Replacing The Analyzer Tubing

    Section 3 Install the replacement tubing as follows: 1. Shut off sample flow to the instrument and set the POWER (I/O) switch to OFF (O). 2. Remove the screws securing the pinch plate to the pump/valve module. Section 1.9 on page 27.
  • Page 49 Section 3 Figure 19 Plumbing Diagram THIS CLASS A DIGITAL APPARATUS MEETS ALL REQUIREMENTS OF THE CANADIAN INTERFERENCE CAUSING REGULATIONS. CET APPAREIL NUMERIQUE DE LA CLASSE “A” RESPECTE TOUTES LES EXIGENCES DU REGLEMENT SUR LE MATERIEL BROUILLEUR DU CANADA. AIR PURGE .01CFM AT 20 PSIG MAX ¼...

  • Page 50: Unscheduled Maintenance

    Section 3 Unscheduled Maintenance 3.2.1 Fuse Replacement The T, 2.5A, 250V fuse used in this instrument is used for both 115V and 230V operation. DANGER DANGER Remove power from the Couper l'alimentation électrique de l'appareil pour retirer ou installer un fusible. instrument when removing or installing a fuse.

  • Page 51: Cleaning The Instrument Enclosure

    Section 3 Figure 20 Removing the stir bar Gently insert a straightened paper clip into the hole, at the top of the colorimeter, and slowly pull out the stir bar. Remove the plug from the top hole of the colorimeter. O LL O LL IP 6...
  • Page 52 Section 3 VORSICHT Die in diesem Verfahren verwendeten Chemikalien können bei unsachgemäßer Handhabung und versehentlichem Mißbrauch gefährlich sein. Bitte alle Warnungen auf den Reagenz-Etiketten Iesen. Es wird empfohlen, in allen Situationen, in denen mit einem Kontakt mit Chemikalien zu rechnen ist, eine Schutzbrille zu tragen.

  • Page 53: Replacing The Sample Conditioning Filter

    Section 3 Figure 21 Cleaning the Colorimeter Gently scrub the inside of the colorimeter with a cotton-tipped swab. Remove the plug from the top hole of the colorimeter. O LL O LL IP 6 IP 6 N UA N UA N S.
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  • Page 55: Section 4 Troubleshooting

    In the event the instrument should malfunction, the following troubleshooting guide may be used to help isolate the problem. Please contact the nearest Hach Service Center for assistance or shipping instructions if the instrument must be returned. Referring 4.1 Troubleshooting Guide Table 4 supplies troubleshooting information for the instrument.

  • Page 56: System Alarms

    If the problem recurs, the main circuit board EE Error Inability to write to the EE ROM EE ERROR may need to be replaced. Call Hach Service. Press the key to restart the instrument. EXIT If the problem recurs, there is a problem Reference measurement = 0 with the colorimeter.

  • Page 57: System Warnings

    Instrument Indication Inspect wiring and circuit Power failed. In default condition, this warning is POWER breakers that deliver POWER disabled. power to the CL17. Clean sample cell Reference measurement is less than 2000 A/D Low Signal LOWSIG counts. Replace sample cell A calibration resulted in a gain correction factor Set CAL Defaults.
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  • Page 59: Appendix A General Information

    The CL17 analyzer can be purchased with a Hach Network Interface Card ® which allows the CL17 to display its readings on an AquaTrend display or allows data to be sent to a PC via a Serial Interface Module.

  • Page 60: Method Of Analysis

    General Information Figure 22 CL17 Chlorine Analyzer Method of Analysis Free available chlorine (hypochlorous acid and hypochlorite ions) oxidizes the DPD indicator reagent at a pH between 6.3 and 6.6 to form a magenta- colored compound. The depth or intensity of the resulting color is proportional to the concentration of chlorine in the sample.

  • Page 61: Principle Of Operation

    General Information Principle of Operation The analyzer is designed to capture and analyze a portion of the sample every 2.5 minutes. The sample portion is captured in the colorimeter measuring cell where the blank absorbance is measured. Measurement of sample blank absorbance allows compensation for any turbidity or natural color in the sample, and provides an automatic zero reference point.
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  • Page 63: Appendix B Hach Network Interface Card For The Cl17 Chlorine Analyzer

    Appendix B Hach Network Interface Card for the CL17 Chlorine Analyzer The CL17 analyzer can be purchased with a Hach Network Interface Card ® that allows the analyzer to be attached via the AquaTrend software to one master AquaTrend Interface, one Serial Input/Output (SIO) Module, one Signal Output Module (SOM) with two relays and one recorder output, and two MOD I/Os.

  • Page 64: Attaching The Cl17 Analyzer To The Network Via An Aquatrend Interface

    1. Make network connections from the CL17 Analyzer to the AquaTrend Network. Hach recommends making those connections at the junction box. Be certain to connect the cable shield. 2. From the Master AquaTrend Interface add the CL17 Analyzer to the network as follows: a. Press the...

  • Page 65: Alarms And Warnings

    2.5 seconds. Alarms and Warnings If an alarm or warning condition exists at the CL17 Analyzer, the alarm or warning will be indicated at the AquaTrend via the alarm annunciator. The actual alarm or warning must be viewed and resolved at the CL17 Analyzer.

  • Page 66: Manually Polling Data

    4–20 mA outputs. The relays and recorder output mirror the outputs of the relays and recorders internal to the CL17. Logging Data via the Hach MOD I/O Module Measurement and alarm data from the CL17 Analyzer can be converted to ® a Modbus * protocol using the Hach MOD I/O Module.

  • Page 67: General Information

    GENERAL INFORMATION At Hach Company, customer service is an important part of every product we make. With that in mind, we have compiled the following information for your convenience. Page 65 GENERAL INFORMATION 54400_gi stop.fm...
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  • Page 69: Replacement Items

    Replacement Items Replacement Parts and Reagents Description Unit Cat. No. Circuit Board Assembly, main ....................each..54404-00 Colorimeter Module........................each..54455-00 Colorimeter Plug ........................each..51224-00 Connector for Alarm or Recorder ....................each..44582-00 Cam/Coupler Assembly ......................each ..54452-00 Follower Block, Reagent ......................each..42741-00 Follower Block, Sample......................each..

  • Page 70: How To Order

    Quantity Technical and Customer Service (U.S.A. only) Hach Technical and Customer Service Department personnel are eager to answer questions about our products and their use. Specialists in analytical methods, they are happy to put their talents to work for you.

  • Page 71: Repair Service

    Repair Service Authorization must be obtained from Hach Company before sending any items for repair. Please contact the HACH Service Center serving your location. In the United States: Hach Company 100 Dayton Avenue Ames, Iowa 50010 (800) 227- 4224 (U.S.A. only)

  • Page 72: Warranty

    THIS IS THE EXCLUSIVE REMEDY FOR ANY BREACH OF WARRANTY. LIMITATION OF DAMAGES: IN NO EVENT SHALL HACH BE LIABLE FOR ANY INCIDENTAL OR CONSEQUENTIAL DAMAGES OF ANY KIND FOR BREACH OF ANY WARRANTY, NEGLIGENCE, ON THE BASIS OF STRICT LIABILITY, OR OTHERWISE.

  • Page 73: Certification

    Hach Company certifies this instrument was tested thoroughly, inspected, and found to meet its published specifications when it was shipped from the factory. The CL17 Chlorine Analyzer has been tested and is certified as indicated to the following instrumentation standards:...
  • Page 74 1. Disconnect the CL17 Chlorine Analyzer from its power source to verify that it is or is not the source of the interference. 2. If the CL17 Chlorine Analyzer is connected into the same outlet as the device with which it is interfering, try another outlet.

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