ExStik DO600 - Extech Instruments
Contents
1. Dirty probe Cathode is not a shiny gold color Clean cathode with Polishing paper perform the electroninc Zero calibration Sample reading is frozen Unit is in HOLD mode Unit is locked Release HOLD momentarilly press Mode Hold button Remove batteries press ON OFF button replace batteries and restart Polishing paper is available in the DO603 membrane kit 11 DO600 en GB_V7 3 7 15 Operational Matrix for the Model DO600 displayed Function Power Mode Required Button Press Sequence Comments Resulting Status Setting Action On Off Any Any Momentary press of the ON OFF button Water Saturated On Any Place Electrode in Calibration Cap Air Calibration Press amp hold CAL RECALL button for 2 seconds Zero Calibration On Any Place Electrode in Zero Solution wait for stability Press Also works with probe amp hold CAL RECALL button for 2 seconds removed Cal at zero current Store Reading Stores and holds reading On Any Momentary press of the MODE HOLD button HOLD displayed Hold Release While In On Hold Momentary press of the MODE HOLD button Mode Enter Memory Momentary press of the Cal button followed by if no data is stored in Retrieval On Any a momentary press of the MODE HOLD button ee Endis displayed riefly and then returns to w in 4 seconds last mode Seroll Stored On Memory Momentary press of the MOD2. EXTECH USER GUIDE INSTRUMENTS ExStik DO600 Dissolved Oxygen Meter Introduction Congratulations on your purchase of the ExStik DO600 dissolved oxygen temperature meter which simultaneously displays dissolved oxygen and temperature Units of measure are saturation mg l or ppm for dissolved oxygen and C or F for temperature Advanced features include Data Hold 25 points memory auto power off automatic temperature compensation salinity and altitude compensation This meter is shipped fully tested and calibrated and with proper use will provide years of reliable service Please visit our website www extech com to check for the latest version of this User Guide Product Updates and Customer Support Meter Description Front Panel Description 1 1 Battery compartment cover 2 LCD Display 2 3 MODE HOLD button 4 CAL RECALL button 3 5 ON OFF button 4 6 Electrode Retaining Collar 5 7 Dissolved Oxygen Sensor 8 Bonded Membrane Cap assembly 6 9 Membrane amp Cathode Note The Electrode storage cap is not shown 7 8 Electrode Bottom View 9 Cathode Membrane LITT LCD Display K io QA 2 ppt mg L 29 1 Bar graph display 2 Measurement units 3 gt f IL mm I Tr 3 Main display h n m Ii mM 4 Low Battery indicator RR amulet BAT o o 5 Temperature display 5 o i c sos 0 0 0 6 Reading hold indicat R eading hold indicator 6 HOLD Co F 2 DO600 en GB
3. CAL is shown in the lower display The readings will blink 101 7 and SA will appear When the calibration is complete End will appear and then the meter will return to the normal measurement mode Turn off the meter Note The SA will not appear if the calibration fails Optional zero oxygen calibration improves measurement accuracy for very low or very high DO measurements Place the electrode in a zero oxygen calibration solution such as 5 sodium sulfite wait for stability and press the CAL RECALL button until CAL is shown in the in the lower display Stability in a zero solution may take many minutes depending on electrode history Note Sodium Sulfite can become deposited on the electrode and on the coined surface of the electrode retaining collar The presence of the Sodium Sulfite will negatively affect future DO measurements until such a time where ALL of it is removed from the electrode Optional Electronic Zero calibration If the DO600 is not making stable measurements or you are replacing the electrode with a new assembly perform this Zero calibration Turn off the meter remove the electrode by unscrewing the retaining ring and pull off the electrode Turn on the meter and wait for the Self calibration to complete Set the Mode to Press and Hold the CAL button until CAL appears on the display When the cal cycle completes the display should read 0 0 Turn off the meter Re at
4. Soft Vinyl Pouch with Belt Loop for ExStik and ExStik II Copyright 2014 2015 FLIR Systems Inc All rights reserved including the right of reproduction in whole or in part in any form ISO 9001 Certified www extech com 13 DO600 en GB_V7 3 7 15
5. DO600 en GB_V7 3 7 15 DO Bonded Membrane Cap replacement Important Note Do not touch the membrane as skin oils will interfere with the oxygen permeability rate of the membrane Use caution when replacing the bonded cap 1 10 It is recommended that the electrode remain attached to the meter during this replacement process To remove the bonded cap from the electrode unscrew the cap firmly and carefully counter clockwise from the electrode see diagram below Discard the used cap Please Note The installation of a bonded cap causes the membrane to be tightly streched over the cathode Once a bonded cap is removed reinstallation is not possible as the membrane will no longer be properly streched over the cathode Rinse the old electrolyte solution from the Cathode and Anode before continuing Use the supplied Polishing Paper See Accessories table to clean polish shine and or remove scratches from the cathode Be sure to moisten the cloth before polishing the cathode Do not over polish the sensitive gold cathode Set the new replacement bonded cap on a flat surface Leave the cap in this position throughout the replacement process Fill the bonded cap with the electrolyte solution up to the bottom of the threads on the inside of the cap Tap the side of the bonded cap to help jar free any trapped air bubbles from the electrolyte solution Keeping the cap in a fixed position on a flat surface carefully insert the electr
6. E HOLD button Readings Recall am Memon On Memory Momentary press of the CAL RECALL Retrieval Recall Clear Stored Any Memory On Measure Press and hold the ON OFF button for 4 seconds clr is displayed ment Mode Change Press and hold the MODE HOLD button for at Measurement On Any least two seconds the modes will scroll until Mode the button is released Enter Salinity Press and release the CAL RECALL button twice On Any 5 A i Compensation momentary in succession Displays SAL Changing Momentary press of the MODE HOLD button Salinity each button press increases the ratio by 1 ppt r On SAL Compensation part per thousand the value cycles from 0 to 50 Exit Salinity Press and release CAL RECALL button for 2 It is necessary to press the Compensation seconds to enter Altitude Compensation Or CAL RECALL button to save On SAL K rs Press and release Cal Button one more time to changes If the unit times out enter measurement mode no changes are saved Enter Altitude Press CAL RECALL twice momentary Unit Unit times out in 5 Compensation Any or enters Salinity Mode Press CAL RECALL for 2 seconds if no button is On i k SAL seconds to enter Altitude Compensation Mode pressed reverts to Displays Ald previous mode Changing Momentary press of the MODE HOLD Altitude On Ald button each button press increases altitude by Compensation 1 000ft the value cycles from 0 to 20 Exit Altitude It is necessary to press the Compensation On A
7. _V7 3 7 15 Operation Prepare the Electrode The electrode is shipped dry and requires filling with the supplied electrolyte solution before use The membrane should be in place and does not need replacement Follow the procedure at the end of this guide for filling the bonded cap NOTE Make sure that there are no air bubbles in the electrode before use Powering the ExStik The ExStik uses four 4 CR2032 Lithium lon Batteries Press the ON OFF button to turn the meter on or off If the batteries are weak the BAT indicator appears on the LCD The auto power off feature shuts the ExStik off automatically after approximately 10 minutes of inactivity The auto power off feature may be temporarily disabled for convenience or for extended polarization time Startup Polarization Period When the ExStik is powered up for the first time the electrode requires polarization In order for this to occur a three minute approx polarization period must elapse before measurements can be made A special circuit is included in this meter which upon turn on maintains a very small biasing current to the electrode for a period of seven days This keeps the electrode polarized and enables the user to make immediate measurements within a 7 day period without waiting for the electrode to re polarize Each time the ExStik is turned on the polarization timer is reset and the 7 day polarization period is initiated A small asterisk at
8. ctivity APO override available 36 x 173 x 41mm 1 4 x 6 8 x 1 6 110g 3 8 oz Measurement Range Resolution Accuracy Saturation 0 to 200 0 0 1 2 0 FS full scale Dissolved Oxygen O to 20 00 mg l 0 01 mg l 2 FS Concentration 0 to 20 00 ppm 0 01 ppm 2 FS Temperature 0 to 50 C 0 1 C 1 0 C 32 to 122 F 0 1 F 0 to 992F 1 8 F 1 0 F gt 100 F 10 DO600 en GB_V7 3 7 15 Appendices Troubleshooting Guide Symptom Possible Causes Action Unit will not power on Batteries not in place Dead batteries Battery polarity incorrect Replace Batteries Replace Batteries Reorient Replace Batteries BAT indicator shown on display Batteries are weak Replace Batteries Unstable Readings Insufficient electrolyte in probe Air bubbles present when probe is inverted Electrolyte is depleted Replace electrolyte and membrane cap assembly Readings drift down Insufficient stirring the probe consumes oxygen at the measuring surface requiring constant sample movement across Move probe in sample or stir sample membrane Slow Response Dirty or damaged Replace electrolyte and membrane membrane cap Electrode cannot be calibrated Depleted electrolyte Dirty or damaged membrane Replace electrolyte and membrane cap Electrode cannot be calibrated after replacing the electrolyte and membrane cap
9. ill appear on the LCD Press the MODE HOLD button again to exit the HOLD mode and return to normal operation The next time MODE HOLD is momentarily pressed another reading is stored and so on If more than 25 readings are stored previously stored readings starting with reading number 1 are overwritten Recalling Stored Readings 1 Momentarily press the CAL RECALL button and then with in 4 seconds momentarily press the MODE HOLD The last stored data point location will be displayed 1 to 25 Each time the MODE HOLD button is momentarily pressed the next most recently stored data point will be displayed After the last data point stored is displayed pressing the MODE HOLD button again returns the display to the beginning of the list Pressing the CAL RECALL button at anytime stops the data retrieval process and returns the meter to the normal measurement mode 6 DO600 en GB_V7 3 7 15 Clearing Stored Readings 1 With the unit ON press and hold the ON OFF button for 4 seconds 2 When clr is shown in the main display the memory is cleared Measurement and Display Considerations e The DO600 uses a polarographic sensor which consumes oxygen at the sensing surface This requires a constant movement of the sample across the membrane to maintain a constant dissolved oxygen level It is recommended that the probe be moved in the sample as the measurement is made or if in a laboratory environment the sample be stirred using a stir
10. ld Momentary press CAL RECALL button to exit CAL RECALL button to save and save changes changes If the unit times out no changes are saved Change Press and hold the CAL RECALL button then Temperature off n a off momentarily press the ON OFF button Release Units mode the CAL RECALL button after the SELF CAL lights Override Press CAL RECALL button momentary then Autopower Off On Any simultaneously press and hold the MODE HOLD and ON OFF buttons for for 2 seconds Default Reset n a off Simultaneously press ON OFF CAL RECALL and off mode MODE HOLD momentarily dFLt will be 12 DO600 en GB_V7 3 7 15 Re order and Accessories Information Part Number Description DO600 ExStik II Dissolved Oxygen Meter DO600 K ExStik II Dissolved Oxygen Meter Kit contains DO600 DO603 EX050 cable and weight and CA895 case DO605 Replacement Probe ExStik II Dissolved Oxygen Meter DO603 Membrane Kit for DO600 Contains 6 Membrane Caps 15 mL KCL Filling Solution Polishing Paper EX010 Extension Cable 3 feet 1 Meter amp Probe Weight EX050 Extension Cable 16 feet 5 Meter amp Probe Weight DO610 ExStik II DO pH Conductivity Meter Kit Contains EC500 pH Conductivity Salinity TDS ExStik II Meter DO600 Dissolved Oxygen ExStik II Meter Single use pH buffer pouches 4 7 and 10pH Sample Cups with Cap Weighted Base for Sample Cups and Batteries all packed in a Carrying Case CA895 Small
11. n place with a finger pull out the battery carrier using the two small tabs Replace the four 4 CR2032 batteries observing proper polarity Replace the battery carrier reattach the battery compartment cap and tighten securely j Never dispose of used batteries or rechargeable batteries in household waste As consumers users are legally required to take used batteries to appropriate collection sites the retail store where the batteries were purchased or wherever batteries are sold Disposal Do not dispose of this instrument in household waste The user is obligated to take end of life devices to a designated collection point for the disposal of electrical and electronic equipment Other Battery Safety Reminders o Never dispose of batteries in a fire Batteries may explode or leak o Never mix battery types Always install new batteries of the same type Electrode Replacement 1 To remove the electrode first turn the instrument OFF and then unscrew and remove the electrode retaining collar turn the collar counter clockwise to remove Gently rock the electrode from side to side pulling it away from the meter until it disconnects To attach an electrode align the positioning keys on the electrode and the main body housing and then carefully push the electrode into the meter socket until it is fully seated Tighten the electrode retaining collar firmly enough to seal the electrode with the meter 8
12. ode into the new bonded cap by first dipping and removing the electrode several times from the cap With each dip push the electrode progressively deeper into the bonded cap Finally screw the electrode slowly onto the bonded cap clockwise until fully tightened The dipping and removal technique minimizes the introduction of air bubbles into the electrolyte solution Air bubbles in the electrolyte can compromise measurements During the tightening of the bonded cap excess electrolyte solution will leak out this is normal and desireable since it minimizes the introduction of air pockets Clean off the excess electrolyte before use Electrode Anode BONDED CAP Cathode Clockwise to tighten Bonded Cap Counter clockwise to loosen Air Vents 9 DO600 en GB_V7 3 7 15 Specifications Display Sensor Membrane Operating Temp Range ATC Range Salinity Compensation Altitude compensation Measurement Storage Battery Power Low Battery Indication Auto Power Off Dimensions Weight 2000 count Dual function 3 digit LCD with Bargraph Display size 24 mm x 20 mm Polarographic type Bonded membrane cap with threaded fitting 0 to 50 C 32 to 122 F 0 to 50 C 32 to 122 F 0 to 50 ppt in 1 ppt part per thousand increments 6000 m 0 to 20 000 ft in 300m 1000 ft increments 25 tagged numbered data sets with recall Four 4 CR2032 button batteries BAT appears on the LCD After 10 minutes of ina
13. plate e Ifyou are measuring DO in a small container the probe will consume oxygen as it is measuring and the measurement value will continue to go lower e Ifthe unit appears to be locked display frozen It is possible that the Data Hold mode has been inadvertently accessed by a press of the MODE HOLD button HOLD will be displayed in the bottom left of the LCD Simply press the MODE HOLD button again or turn the meter off and back on again e Ifthe meter does latch up and no button presses revive it remove the batteries and restart e For maximum accuracy allow sufficient time for the temperature of the probe to reach the temperature of the sample before taking a reading This will be indicated by a stable temperature reading on the display Membrane Maintenance First use When you first go to use a new meter you will need to remove the membrane cap and replace it with a new cap filled with refill solution Please Note The installation of a bonded cap causes the membrane to be tightly streched over the cathode Once a bonded cap is removed reinstallation is not possible as the membrane will no longer be properly streched over the cathode Storage The sponge contained in the protective electrode cap should be only moistened not soaked with distilled water or clean tap water 7 DO600 en GB_V7 3 7 15 Maintenance Battery Replacement 1 2 Twist off the battery compartment cover Holding the battery housing i
14. set to measure either saturation mg l or parts per million ppm To change the mode 1 Press and hold the MODE HOLD button for 2 seconds and the display will begin to scroll through the different units of measure saturation D O in mg l D O in ppm parts per million When the desired units are displayed release the MODE HOLD button and the unit will return to normal operating mode Note The HOLD function cannot be on when changing the measurement function If HOLD is displayed in the lower left corner of the display briefly press the MODE HOLD button to turn it off Temperature Units 2F 2C 1 2 3 With the unit OFF press and hold the CAL RECALL button With the CAL RECALL button depressed momentarily press the ON OFF button to turn the unit ON The CAL RECALL button can be released when Self Cal is shown in the display Salinity Compensation 1 With the unit ON momentarily press the CAL RECALL button twice in quick succession SAL is shown in the lower temperature display Momentary press the MODE HOLD button Each press of the MODE HOLD button increases the compensation by 1ppt part per thousand the available range is 0 to SOppt 5 DO600 en GB_V7 3 7 15 3 Momentarily press the CAL RECALL button to save the compensation setting and return to the normal measurement mode Altitude Compensation 1 With the unit ON momentarily press the CAL RECALL button
15. tach the electrode Perform the electrode cap calibration from Step 5 4 DO600 en GB_V7 3 7 15 Measurements 1 Cover the electrode with the electrode cap The sponge contained in the cap should be moistened not soaked with distilled water or clean tap water Pressing the ON OFF button turns the meter ON or OFF When turned ON the meter s display switches on and the Self Calibration utility runs see above If this is the first time the meter is powered up wait approx 3 minutes for the probe to polarize please disable auto power off Instructions for disabling auto power off are provided in a later section For more details please read the Startup Polarization Period paragraph earlier in this manual before continuing Select the desired units of measure by pressing and holding the MODE HOLD button until the proper units are shown in the display Remove the electrode cover and place the electrode in the sample to be measured Stir the electrode in the sample to remove any trapped air bubbles from the membrane surface Do not submerse the electrode to the point that the sample liquid reaches the meter s electrode collar Allow the meter time to settle to the final measurement value Note The larger the difference in temperature between the electrode and the solution the longer it will take for the reading to stabilize Stabilization time can vary from thirty 30 seconds to five 5 minutes Measurement Units The meter can be
16. the bottom right corner of the display is used to indicate that the polarization timer circuit is active even when the meter is off If the ExStik is not used for more than seven day a 3 minute waiting period is required before a measurement can be made Turn On Diagnostics 1 When the meter is turned ON the LCD displays SELF and CAL while the meter runs a diagnostic routine 2 During this time the meter is recalling the User Calibration data performing self diagnostics amp initializing the circuitry 3 After this function is complete the meter proceeds to the normal measurement mode 4 The DO600 should be calibrated daily for measurement accuracy 3 DO600 en GB_V7 3 7 15 Calibration Fa rN Calibration should be performed on a daily basis Turn the meter ON Press and hold the MODE HOLD button until is displayed on the LCD If the meter has not been used for seven 7 days or longer allow the electrode to fully polarize This may take 2 3 minutes Place the electrode cap onto the electrode The sponge contained in the cap should be only moistened not soaked with distilled water or clean tap water Be sure that the electrode membrane is clean and dry or the calibration will be incorrect There needs to be an air gap between the membrane and the sponge Never touch the membrane as skin oil will affect the electrode response Wait until the reading stabilizes then press and hold the CAL RECALL button until
17. twice in quick succession SAL is shown in the lower temperature display Press and hold CAL RECALL again for 2 seconds to enter the Altitude Mode Ald will be shown in the lower temperature display The factory default value is sea level Each press of the MODE HOLD button increases the compensation by 1000ft The maximum value is 20 presses 20 000ft above sea level Momentarily press the CAL RECALL button to save the compensation setting and return to the normal measurement mode Auto Power OFF Feature The auto power off feature automatically shuts the meter off 10 minutes after the most recent button press To disable this feature refer to the Disable Auto Power OFF section Disable Auto Power OFF Feature With the unit ON momentarily press the CAL RECALL button then quickly press and hold both the MODE HOLD and ON OFF buttons until off is displayed To restore the Auto Power Off Feature auto power OFF enable simply turn the meter off and on again using the ON OFF button Low Battery Indication When the battery voltage falls below the operating threshold BAT will appear on the display Refer to the Maintenance section for battery replacement information Storing Readings 1 Press the MODE HOLD button to store a reading The storage location number will be displayed on the lower display while the main display shows the stored reading The meter will enter the HOLD mode and the HOLD indicator w
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