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CL200 Handheld Chlorine Meters Manual

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1. or consequential damages Extech s total liability is limited to repair or replacement of the product The warranty set forth above is inclusive and no other warranty whether written or oral is expressed or implied Calibration and Repair Services Extech offers repair and calibration services for the products we sell Extech also provides NIST certification for most products Call the Customer Service Department for information on calibration services available for this product Extech recommends that annual calibrations be performed to verify meter performance and accuracy ry Support line 781 890 7440 Technical support Extension 200 E mail support extech com Repair amp Returns Extension 210 E mail repair extech com Product specifications subject to change without notice For the latest version of this User s Guide Software updates and other up to the minute product information visit our website www extech com Extech Instruments Corporation 285 Bear Hill Rd Waltham MA 02451 Copyright 2005 Extech Instruments Corporation All rights reserved including the right of reproduction in whole or in part in any form 9 CL200 V6 0 06 05
2. User s Guide EXTECH INSTRUMENTS ExStik CL200 Waterproof Total Residual Chlorine Tester Patent Pending Introduction Congratulations on your purchase of the ExStik CL200 chlorine tester The CL200 is a revolutionary first of its kind measurement device that offers direct reading of Total Chlorine from 0 01 to 10 00 ppm The electrode method employed by the ExStik is approved by the U S Environmental Protection Agency EPA as an acceptable method for wastewater compliance monitoring of total chlorine For this type of electrode method a reagent tablet must be added to the measurement solution before testing The advantages of the CL200 to the user include Easy to use and maintain high accuracy self calibration and fast response The CL200 offers simultaneous Chlorine and Temperature displays and a 15 reading memory storage Careful use and maintenance will provide years of reliable service Applications The CL200 can be used wherever a measurement of the total chlorine in water is needed This is also referred to as total residual chlorine It measures the total of all chlorine present in all forms including dissolved free chlorine chloramines hyporchlorous acid and hypochlorite ion Typical applications include measurements of discharge water from water treatment plants public drinking water supplies and cooling towers and measurement of disinfectant properties in swimming pools and cooling wat
3. ate sample cups Discard the sample cup when it shows a color change Maintain the electrode by completely wiping dry and then replacing the electrode cover immediately after taking a measurement The electrode should always be stored in the dry cap Cover the connector with the clear cover whenever the electrode is removed from the meter body Gently stirring the probe in the solution for 10 seconds within the first minute of operation will accelerate the process and yield more accurate readings Do not stir after 10 seconds Troubleshooting Guide 1 If the unit appears locked it is possible that the Data Hold mode has been inadvertently accessed If the HOLD icon is displayed simply press the MODE button or turn the meter off and restart If the meter latches up and cannot be reactivated by a button press remove the batteries and restart Note that if the batteries are removed any stored readings will be lost Electrodes Types The CL200 can also measure ORP and pH To perform these tests the appropriate electrode must be acquired and connected to the ExStik When the unit is turned on it recognizes the type of electrode that is connected and displays the appropriate unit of measure 6 CL200 V6 0 06 05 Maintenance Battery Replacement 1 Twist off the battery compartment cap 2 Replace the four 4 CR2032 batteries observing polarity 3 Replace the battery compartment cap yy Cleaning and Ma
4. er applications 2 CL200 V6 0 06 05 Meter Description CL200 Front Panel Description The ExStik s keys have functions which change depending on the electrode attached pH ORP or Chlorine Key descriptions here apply for the ExStik with a chlorine electrode attached 1 Battery compartment 2 LCD Display 3 MODE HOLD button store data 4 CAL RECALL button change temperature units and recall data Calibration not required for chlorine ON OFF button Electrode Collar Electrode Note The Electrode cap is not shown N OA ExStik CL200 Display 1 Bargraph display 2 Measurement display 3 BAT low battery and HOLD data hold indicators 4 Temperature display 5 Bargraph scale designations 6 Unit of measure Accessories e CL203 ExTab Reagent tablets 10 pack for 100 tests e CL205 Spare chlorine electrode e EX006 Weighted base with 5 solution cups e PH100 pH Electrode e RE300 ORP Electrode e EX007 Solution cups 24 pack 3 CL200 V6 0 06 05 Getting Started Equipment Required A chlorine test requires a 20ml sample cup a reagent tablet and the CL200 with a chlorine electrode attached The optional EX006 Weighted base is a recommended accessory Battery Activation An insulating tab is located in the battery compartment and prevents battery drain during storage It must be removed before use Refer to the battery replacement pa
5. intaining the Electrode The CL200 Chlorine Electrode arrives in a factory cleaned condition and is ready to be used The electrode will perform best and yield more stable readings after the first few tests Before and after tests firmly wipe the electrode tip with a clean dry paper towel to remove any compounds that may have formed When not in use the CL200 should be stored with the electrode cap in place Electrode Replacement The CL200 is shipped with an electrode attached If the electrode has to be replaced or if a pH or ORP electrode is to be installed follow these steps 1 Turn the unit off 2 To remove an electrode unscrew and remove the electrode collar turn the collar counter clockwise 3 Gently rock the electrode from side to side pulling it downwards until it disconnects from the meter 4 To attach an electrode allign the slots and carefully plug the electrode into the meter socket 5 Tighten the electrode collar firmly enough to make a good seal a rubber gasket seals the electrode with the meter 7 CL200 V6 0 06 05 Specifications Display Multifunction LCD with Bargraph Operating conditions 32 to 122 F 0 to 50 C and lt 80 RH Chlorine range 0 01 to 10 00 ppm Total Chlorine Chlorine accuracy 0 05 to 5 00ppm 10 reading 0 01ppm 5 00 to 10 00ppm 15 reading 0 05ppm Temperature 23 to 194 F 5 to 90 C measurement range Temperature range 32 to 122 F 0 to 50 C for Ch
6. lorine measurement Temp Resolution 0 1 up to 99 9 then 1 Temp Accuracy 1 8 F 1 C from 23 to 122 F 5 to 50 C 5 4 F 3 C from 122 to 194 F 50 to 90 C Measurement storage 15 readings can be stored and recalled Low battery indication BAT appears on the LCD Power Four CR2032 button batteries Auto power off Automatically turns off after 10 minutes after the last key press 8 CL200 V6 0 06 05 Warranty EXTECH INSTRUMENTS CORPORATION warrants this instrument to be free of defects in parts and workmanship for one year from date of shipment a six month limited warranty applies to sensors and cables If it should become necessary to return the instrument for service during or beyond the warranty period contact the Customer Service Department at 781 890 7440 ext 210 for authorization or visit our website www extech com for contact information A Return Authorization RA number must be issued before any product is returned to Extech The sender is responsible for shipping charges freight insurance and proper packaging to prevent damage in transit This warranty does not apply to defects resulting from action of the user such as misuse improper wiring operation outside of specification improper maintenance or repair or unauthorized modification Extech specifically disclaims any implied warranties or merchantability or fitness for a specific purpose and will not be liable for any direct indirect incidental
7. n The location number is displayed first followed by the reading stored in that location 3 To exit the storage mode press the CAL button and the CL200 will return to normal operation Note If the batteries are removed all stored readings will be lost Changing the Temperature Units Press and hold the CAL button for approx 3 seconds to change the temperature units Auto Power OFF The auto power off feature automatically shuts the CL200 off 10 minutes after the last keypress Low Battery Indication When the batteries become weak the BAT icon will appear in the display Refer to the Maintenance section for battery replacement information 5 CL200 V6 0 06 05 Considerations and Techniques 1 2 If the meter has not been used for several weeks or is new at least two tests should be made to condition the electrode Do not touch the reagent tablets Touching can cause contamination If the electrode has not been used for in a 24hr period wipe the tip with a clean dry paper towel before use Before use wash the sample cups and the caps and then rinse them completely The CL200 should not be left in a solution while turned off If left in solution while turned off subsequent readings may take longer to reach the correct value Do not touch the sensor surface except with a clean dry paper towel When measuring solutions that have large differences in chlorine concentration i e 0 1ppm and 5 0ppm use separ
8. ragraph in the maintenance section Measurement Procedure Sample Preparation 1 Place the test sample into the sample 20ml ine cup up to the 20mL line 2 Drop one reagent tablet into the sample wait 10 seconds and then Reagent shake or stir vigorously until it is dissolved Sample Measurement 1 Press the ON button and insert the electrode into the sample 2 Stir the sample with the electrode for 5 to 10 seconds The HOLD indicator will appear after 120 seconds Reading The value in the display is the total chlorine in ppm Note After running a test wipe the entire electrode with a clean dry paper towel S TTN 104 HOLD 18 6 4 CL200 V6 0 06 05 Storing Readings 1 Press the MODE button to store a reading The storage location number will be displayed followed by the stored reading and the HOLD indicator 2 Only one reading can be stored during the 120 second measurement cycle 3 Press the MODE button again to return to normal operation 4 If more than 15 readings are stored previously stored readings starting with number 1 will be overwritten Recalling Stored Readings 1 Press the CAL button and then press the MODE button immediately after CAL is displayed a location number 1 through 15 will flash 2 The last stored reading taken will be displayed first To scroll through the stored readings press the MODE butto

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