User's Guide ExStik® CL200A 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.
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 button (store data) 4. CAL button (change temperature units and recall data. Calibration not required for chlorine) 5. ON/OFF button 6. Electrode Collar 7. Electrode (Note: The Electrode cap is not shown) ExStik® CL200 Display 1.
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. Measurement Procedure Sample Preparation: 1. Place the test sample into the sample cup up to the 20mL line. 2.
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.
Offset Adjustment Procedure If it is necessary to adjust the chlorine reading to match the value of a known standard or to agree with the reading from another chlorine meter, the following procedure can be used. 1. Using a chlorine solution of known concentration perform the normal sampling procedure (refer to the operator’s manual) with 20 ml of the solution, wait for the display to read “HOLD” (approx. 2 minute sampling time). 2.
Considerations and Techniques 1. If the meter has not been used for several weeks or is new, at least two tests should be made to condition the electrode. 2. Do not touch the reagent tablets. Touching can cause contamination. 3. If the electrode has not been used for in a 24hr period, wipe the tip with a clean/dry paper towel before use. 4. Before use, wash the sample cups and the caps and then rinse them completely. 5. The CL200 should not be left in a solution while turned off.
Maintenance Cleaning and Maintaining 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.
Battery Replacement 1. Twist off the battery compartment cap 2. Replace the four (4) CR2032 batteries observing polarity. 3.
