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User Manual TD-500D

1. NOTE VWR Scientific is a recommended supplier for lab equipment but alternative suppliers may be used if similar equipment is purchased VWR Scientific s website address is www vwrsp com Turner Designs Hydrocarbon 559 253 1414 Instruments Telephone Number VWR Scientific Telephone Number 800 932 5000 NOTE The cuvette choice may be dictated by the application Please perform the linearity and sensitivity checks described in Section I 3 3 and Section I 3 4 to verify the cuvette choice TD 500D User s Manual PART II A4 TD 500D User s Manual PART III No Solvent Oil in Water Analysis Procedure TD 500D User s Manual PART III 45 II 1 No Solvent Method for Oil in Water Analysis with the TD 500D IUI 1 1 Introduction The No Solvent Method makes it possible to perform oil in water analyses by making fluorescence measurements directly on the produced water sample No organic solvents are required The method is based upon the addition of a proprietary surfactant OIW Surfactant to a produced water sample OIW Surfactant is safe to handle with a minimum of personal protective eguipment and is only slightly flammable even under a direct flame The US Department of Transportation does not consider it to be a hazardous material It can be shipped without hazardous identification labels and can be carried on commercial airlines and helicopters without declaration The No Sol
2. You will usually achieve the best analytical precision if you use Channel A whenever possible even if you must make measurements beyond the linear range Section III 6 2 Consult Turner Designs Hydrocarbon Instruments Inc for details Section III 3 steps 5 and 6 describe how to set the TD 500D to Channel B All the procedures equations and cuvette adapter selection guidelines described for Channel A also apply to Channel B TD 500D User s Manual PART III 64 II 8 Equipment Clean up and Re use 1 Clean the sample bottles with the brush and rinse them thoroughly with distilled water 2 Drain all the rinse water from the sample bottles 3 If necessary the syringes can be rinsed with distilled water dried and re used 4 Discard all used syringe filters NOTE Although the sample bottles can be re used from either the solvent or no solvent procedures if properly cleaned do not re use syringes pipette tips or transfer pipettes used in the solvent method TD 500D User s Manual PART III 65
3. TD 500D User s Manual PART I 10 maintaining linearity over the desired measurement range See Sections I 3 3 and I 3 4 for further details 12 4 TD 500D Keypad TD500D Make a ast Exit return to measurement Home screen Power ON OFF onr Channel select z 7 Enter concentration of Calibrate ab calibration standard Diagnostic Advance to Screen next screen Cf TURNER VL DE Hydr rbon Instr I 2 5 Instrument Power up co Turn the instrument face up and press the lt ON OFF gt button The instrument should turn on and display an introduction screen with a count down indicator in the lower right corner TDHI TD 500D TDHI 1B 0805 5 Count down Timer After 5 seconds when the count down indicator reaches zero the TD 500D displays the Home screen and is ready for use READY A t Channel Indicator A or B The channel indicator will display the channel that was active during the instrument s previous use TD 500D User s Manual PART I 11 If the display does not activate check the batteries Make sure they are fresh and installed in the proper orientation If the display shows meaningless characters replace the batteries The TD 500D will automatically turn off if it is idle for 3 minutes Fresh alkaline batteries will provide adequate power for over 1000 measurements bration GaN 1 2 6 Calibration CAL There are many ways to calibrate the TD 500D The most
4. 500 mL 102933 OIW Surfactant Dispenser Bottles Bag of 4 102932 Graduated sample Case of 48 100585 bottles Teflon lined caps Bag of 48 100632 3 mL Syringes Bag of 100 102931 Syringe filters Bag of 100 102930 1000 uL pipette 1 102951 10 mL pipette 1 4mL graduated vials Bagot5 102937 with caps Kimwipes 1 box 101396 600 mL beaker 1 500 mL volumetric 1 flask 100 mL graduated 2 cylinder Hot plate 1 Bottle brush 1 TD 500D User s Manual PART III 48 Distilled water Disposable beaker Box of 100 102934 Heat resistant gloves 1 pair Safety goggles 1 pair TD 500D User s Manual PART III 49 HI 3 Initial Preparation Label a 500 mL volumetric flask BLANK Label four 4 clean dry sample bottles 1000 ppm 100 ppm WSO and OIW Label four 4 8mm cuvettes 100 ppm BLANK WSO and OIW Confine the labels to the top 0 5 13 mm of the cuvette to keep the mark out of the measurement zone Place 250 mL of tap water in a 600 mL beaker Place the beaker on a hot plate Turn on the hot plate and heat the water until it is near boiling 180 F 82 C Turn on the TD 500D and wait 5 seconds for the warm up count down to expire The word READY will appear on the first line of the display Also a letter A or B indicating the measurement channel will app
5. Also a letter A or B indicating the measurement channel will appear on the lower left TD 500D User s Manual PART III 52 Dee 10 Press lt gt or lt gt until the STD VAL is set to 12 13 Make sure that the TD 500D is set to Channel A If you see a B displayed instead of an A press the lt A B gt button until an A appears Wipe the BLANK and 100 ppm cuvettes with a Kimwipe to remove any fingerprints dirt or liquid droplets that might be present Press the lt CAL gt button Press the lt ENTER gt button When prompted for the Blank place the BLANK cuvette in the adapter well and close the lid Press lt ENTER gt When prompted for the Cal Soln remove the BLANK cuvette and place the 100 ppm standard cuvette in the adapter well Close the lid Press lt ENTER gt Press the lt STD VAL gt button 100 0 ppm Press lt ENTER gt Press the lt DIAG gt button and record the values of FS BLK and FS STD If the FS STD value is below 3 switch to the large aperture 8 mm cuvette adapter PN 102935 and repeat steps 4 through 9 NOTE If you wish to make measurements greater than 100 ppm save the unused portions of the 1000 ppm and 100 ppm standards for later use See Section III 6 TD 500D User s Manual PART III 53 HI 5 Analysis 0 100 ppm Oil in Water 11 5 1 Prepare the WSO Sampl
6. PART I 21 2 Make minor adjustments or tests as suggested by Turner Designs Hydrocarbon Instruments Inc Service Department personnel 3 If the Service Personnel determine that the TD 500D must be returned to the factory OBTAIN AN RMA Return Material Authorization NUMBER BEFORE SHIPPING THE INSTRUMENT TO TURNER DESIGNS HYDROCARBON INSTRUMENTS Inc You must ship all items associated with the instrument including the TD 500DTM the appropriate adapter the CheckPOINTTM Solid Standard and the carrying case After obtaining an RMA number pack the instrument and accessories well insure it write the RMA on the outside of the carton and ship it to Turner Designs Hydrocarbon Instruments Inc prepaid If the instrument and or the problem are determined to be repairable under warranty the instrument will be repaired however all shipping costs are for the customer s account Out of warranty repair for the TD 500D is billed on a flat rate basis regardless of the problem Your bill will include return shipment freight charges NOTE Please do not return the instrument without notice TD 500D User s Manual PART I 22 Address for Return Shipments Turner Designs Hydrocarbon Instruments Inc Attn RMA 2023 N Gateway Blvd Suite 101 Fresno CA 93727 United States of America Contact Information for Sales and Service Main Phone Number 1 559 253 1414 Main Fax 1 559 253 1090 Email Sales issu
7. a Kimwipe to remove any fingerprints dirt or liguid droplets that might be present Place the OIW cuvette in the adapter well and close the lid Press the lt READ gt button Record the OIW Reading Place the WSO cuvette in the adapter well and close the lid Press the lt READ gt button Record the WSO Reading 1 5 4 Calculation The OIW Reading includes contributions from both dispersed oil and water soluble organic compounds WSO The WSO Reading is due only to WSO The dispersed oil concentration Cgipersed in units of ppm can be calculated by subtracting the WSO Reading from the OIW Reading as shown in Equation lII 5 1 Equation III 5 1 Caispersed OIW Reading WSO Reading TD 500D User s Manual PART III 56 III 6 Extended Range Measurements Channel A 1 6 1 Linear Range Determination While all oils give linear response on Channel A up to a dispersed oil concentration of 100 ppm many give linear response to higher oil concentrations You can establish the linear range of your oil by preparing a few additional standards and measuring them with the TD 500D calibrated with the 100 ppm standard Section III 4 Use the following procedure to establish the linear range up to 1000 ppm 1 Make sure that the TD 500D is set to Channel A and that you have already calibrated it with your 100 ppm standard 2 Prepare an additional 1000 ppm standard as described
8. mm cuvettes Calibration solution concentration _ Standard value STD VAL Diagnostic screen DIAG readings FS BIk FS Std Linearity test Concentration of diluted solution__ Measured concentration of diluted solution_ TD 500D User s Manual PART I 20 I 5 Warranty 1 5 1 Terms Turner Designs Hydrocarbon Instruments warrants the TD 500D Oil in water Meter and accessories to be free from defects in materials and workmanship under normal use and service for a period of one year from the date of shipment The instrument and accessories must be installed powered and operated in compliance with the directions in this TD 500D User s Manual and the instructions accompanying the accessories Additional 12 months warranty is available at the time of order Please consult factory The following items are not covered under warranty e Damage resulting from contact with solvents or other corrosive liquids and gases e Damage resulting from contact with corrosive materials or atmosphere e Damage caused by modification of the instrument e Damage caused by improper handling and physical abuse of the instrument 1 5 2 Service During and After Warranty Period To obtain service at any time do the following 1 Write or call the Turner Designs Hydrocarbon Instruments Inc Service Department and describe the nature of the problem See contact information on page 23 TD 500D User s Manual
9. the solvent extract Wipe the outside of the cuvette with a clean laboratory grade tissue or cloth to remove any liquid dirt or oil that might be present 8 Insert the cuvette into the TD 500D cuvette holder in the adapter well and close the lid 9 If the TD 500D is off press the lt ON OFF gt button and allow the instrument to proceed to the end of the countdown period 10 Make sure the proper channel A or B is shown in the lower left hand corner of the display If it is not press the lt A B gt button until the correct channel appears 11 Press the lt READ gt button and then record the reading after the WAIT message disappears 12 If the TD 500D was calibrated using a look up table use the look up table to convert the reading to oil concentration 13 Dispose of the water extraction solvent cuvette and prescription bottle in a safe environmentally responsible manner in accordance with your company s procedures ch TD 500D User s Manual PART II 29 NOTE Ifthe TD 500D Oil in Water Meter reads OVER or the sample reads higher than the correlation chart or look up table this means the oil and grease concentration is too high Follow the steps below to overcome this issue 1 Dilute the solvent extract 5 times by combining mL of solvent extract with 4 mL of clean solvent and mix the diluted extract 2 Measure the diluted extract Steps 7 through 11 on page 29 3
10. 0 of its assigned value then blank with clean extraction solvent and recalibrate the TD 500D Oil in Water Meter using the CheckPOINT Solid Standard TD 500D User s Manual PART II 41 II 6 Extraction and Calibration Procedure Method Supplies The TD 500D can be purchased with the extraction kits for heavier and lighter than water solvents These extraction kits have enough supplies for approximately 96 sample analysis each and they include necessary laboratory supplies and glassware required for the extraction procedure Extraction solvent hydrochloric acid 2 propanol also called isopropanol or isopropyl alcohol and detergents and liquids are not provided in the extraction kit The following list of items are included in the extraction kits II 6 1 Extraction Starter Kit for Lighter than Water Solvents P N 100590 Description Ouantity Part No Disposable Glass 2 cases 100585 Prescription Bottles with 48 per Caps 180 mL case 25 mL Glass Graduated 2 100653 Cylinder 250 mL Plastic Squirt Wash 2 100631 Bottles pH Paper Indicator Strips 1 100373 Universal 0 14 pack 100 strips per pack Glass Sample Vials 20 mL 2 100621 with Teflon Lined Caps Plastic Disposable Transfer Pack of 100675 Pipette 100 TD 500D User s Manual PART II 42 II 6 2 Extraction Starter Kit for Heavier Than Water Solvents P N 100629 Descr
11. D 500D User s Manual PART I 4 PART I I 1 Introduction 1 1 1 Description The TD 500D is a dual channel handheld fluorometer designed for quick easy and reliable measurements of crude oil fuel oil lube oil diesel some gas condensates and refined hydrocarbons in water or soil When properly calibrated with a correlation method or a known standard the TD 500D can be used to measure the hydrocarbon concentrations of water samples in less than 4 minutes The TD 500D is not designed to measure gasoline BTEX aromatic solvents or BTEX component gas condensate in water or soil Contact us about the TD 3100 bench top oil in water analyzer for measurement of gasoline phenol BTEX or aromatic chemicals in water Please contact sales oilinwatermonitors com for more information The dual channel design makes the TD 500D applicable to a wide range of hydrocarbon types and concentration ranges Channel A provides the extreme sensitivity required to monitor very low hydrocarbon concentrations and for detecting weakly fluorescent hydrocarbons such as some gas condensates diesel fuel and refined petroleum products Channel B was designed for those applications where a wide concentration range is more important than high sensitivity Channel B is ideal for the analysis of produced water samples where crude oil concentrations can vary from low levels to over one thousand parts per million TD 500D Use
12. Hexane Cyclohexane Heptane Octane Xylenes may give high blank reading Toluene may give high blank reading NOTE Please use this procedure even if your solvent is not listed above and you are using lighter than water extraction solvent NOTE If you are using heavier than water extraction solvent then refer to Section II 3 of this manual for heavier than water extraction solvent analysis procedure II 2 1 Analysis Procedure 1 Collect 100 mL of contaminated water in a clean graduated prescription bottle or suitable graduated glass container 2 Add 6N hydrochloric acid until the pH of the water sample is lt 2 Check the pH with pH paper NOTE Depending on the method philosophy of the facility the sample can be measured at normal pH 3 Add 10 mL of extraction solvent and securely cap the bottle TD 500D User s Manual PART II 28 4 Extract oil from the water by vigorously shaking the bottle for 2 minutes 5 Allow the extraction solvent to separate from the water for approximately 1 minute If the extraction solvent is trapped in an emulsion break the emulsion by agitating with a clean pipette Allow the extract to sit for several minutes after agitating the emulsion This will allow the solvent to separate from the water The solvent extract will be floating on top of the water Carefully release the pressure from the bottle Fill the appropriate cuvette mini cell or 8 mm cuvette 34 full with
13. If the TD 500D Oil in water Meter is off press the lt ON OFF gt button and allow the instrument to proceed through the countdown period 6 Press the lt READ gt button and then record the reading after the WAIT message disappears 7 Open the lid and use the 3 32 Allen wrench provided to adjust the attenuation screw through the hole at the top of the solid standard to increase or decrease the value displayed on the screen Turning the screw counter clockwise will increase the reading TD 500D User s Manual PART II 40 Picture 3 Adjusting the value on the CheckPOINT Solid Reference Standard by turning the attenuation screw 8 11 12 Repeat Steps 5 through 7 until the CheckPOINT Solid Standard reads the concentration value of interest At this point remove the CheckPOINT Solid Standard and turn the locking setscrew until it just makes contact with the attenuation screw do not over tighten Record the value of the CheckPOINT solid standard on the adhesive label on the bottom of the CheckPOINT Solid Standard Remove the CheckPOINT Solid Standard Recalibrate the TD 500D Oil in water Meter using the value of the CheckPOINT Solid Standard obtained in Step 10 as the Standard Value STD VAL On a daily basis prior to sample analysis use the CheckPOINT to verify TD 500D Oil in water Meter calibration If the CheckPOINTTM value has changed by greater than 1
14. Record the concentration of the diluted sample extract using the correlation chart Step 11 on page 29 4 Multiply the result from Step 3 by five 5 to calculate the true oil and grease result in the water sample TD 500D User s Manual PART II 30 II 3 Analysis Procedure for Heavier than Water Extraction Solvents See page 36 for Calibration Procedure This procedure is for use with heavier than water extraction solvents such as Vertrel MCA Freon Ashikleen AK 225 Chloroform Carbon Tetrachloride Horiba S 316 Methylene Chloride NOTE Please use this procedure even if your solvent is not listed above and you are using heavier than water extraction solvent NOTE If you are using lighter than water extraction solvent then refer to Section II 2 of this manual for lighter than water extraction solvent analysis procedure 11 3 1 Analysis Procedure 1 Collect 100 mL of produced water in a clean graduated prescription bottle 2 Add 6N hydrochloric acid until the pH of the water sample is lt 2 Check the pH with pH paper 3 Add 10 mL of extraction solvent and securely cap the prescription bottle with a clean Teflon lined septum cap 4 Extract oil from the water by vigorously shaking the prescription bottle for 2 minutes TD 500D User s Manual PART II 31 5 Allow the extraction solvent to separate from the water for approximately 1 minute If the extraction solvent is trapped in an emuls
15. Standard by diluting the Stock Standard with clean solvent Recipes for preparing several typical concentrations are given in Table 1 To prepare the Calibration Standard shown in column 1 pipette the Stock Standard volume given in column 3 into a 100 mL volumetric flask then fill the flask to the 100 mL mark with clean solvent Calibration Oil in water Stock Standard Standard ppm Equiv ppm Volume 5 000 500 50 mL 2 500 250 25 mL 1 000 100 10 mL 500 50 5 0 mL 250 25 2 5 mL 100 10 1 0 mL Table 1 Calibration Standards II 4 1 3 Calibrate the TD 500D Oil in Water Meter 1 Before calibration begins you must select a TD 500D channel A or B and a cuvette size mini cell cuvette or 8 mm cuvette See Section I 2 2 for channel selection guidelines TD 500D User s Manual PART II 35 10 11 12 13 14 See Section I 2 3 for cuvette selection guidelines Prepare a Blank by filling a cuvette with clean extraction solvent Wipe the outside of the cuvette with a clean laboratory grade tissue to remove any liquid dirt or oil that might be present Insert the Blank cuvette into the TD 500D adapter well and close the lid If the TD 500D is off press the lt ON OFF gt button and allow the instrument to proceed to the end of the countdown period Make sure the proper channel A or B is shown in the lower left hand corner of the display If it is not pres
16. TURNER Doestcns Hydrocarbon Instruments TD 500D Handheld Oil in Water Meter User s Manual Revision C P N 100668 2023 N Gateway Ste 101 Fresno CA 93727 United States of America Phone 559 253 1414 Fax 559 253 1090 www oilinwatermonitors com E Mail sales oilinwatermonitors com service oilinwatermonitors com Table of Contents I 1 I 2 I 3 I 4 I 5 I 6 PART I Introduction LII Description iisi ioten e 5 1 1 2 Getting Started eee uueuueeeeeueeen 6 Operation s 3scciciiheatistcintitentitsiniicou 8 1 2 1 Principle of Operation 99 8 1 2 2 Channel Selection Guidelines 9 1 2 3 Cuvette Selection Guidelines 10 1 2 4 TD 500D Keypad ooeec 11 1 2 5 Instrument Power up eee 11 1 2 6 Calibration iien rrn aE 12 I 2 7 Calibration Standard Value 13 1 2 8 Diagnostic Information ee 13 1 2 9 Channel Selection ee eeeeeeneees 14 General Considerations for Analysis 15 1 3 1 Sample Analysis 00 0 0 eeeeeeeeeeeteees 15 1 3 2 General Information and Precautions 15 1 3 3 Linear Range 16 1 3 4 Sensitivity eeeeeeeeeeeeeeereereeereeerreere 17 1 3 5 Temperature Considerations 18 1 3 6 Data Quality osese 18 Troubleshooting 0 0 0 0 ceeeeeeeeeeeneeeeneees 19 Wal bay foeici ccafscekccescthioset cubes secdhh seuteses Senteey 21 Ted Ter S i ae e esobes
17. e 1 Open the process sample valve and allow water to run for at least 15 seconds 2 Fill the bottle labeled WSO to the neck with process water NOTE Make sure that the WSO bottle is clean and dry and that no OIW Surfactant has been added 3 Cap the bottle and allow it to cool to room temperature 4 Fill a 3 mL syringe with WSO water 5 Attach a syringe filter to the end of the syringe 6 Press the syringe plunger to force liquid through the filter and into the WSO cuvette Continue until the cuvette is to 34 full III 5 2 Prepare the OIW Sample 1 Add 3 mL of OIW Surfactant to the OIW bottle 2 Open the process valve and purge the sample valve by allowing the water to flow at a high rate for at least 1 minute 3 Adjust the sample valve until the water is flowing at a rate of 10 mL per second Allow the water to flow at this rate for at least 15 seconds 4 Allow water to flow into the OIW bottle until the liquid level reaches the 100 mL mark 5 Cap the bottle and shake it vigorously for at least 15 seconds TD 500D User s Manual PART III 54 If the contents of the bottle are uniformly milky white it is not necessary to perform Steps 7 through 9 You may skip to Step 10 Place the OIW bottle in the hot water bath and heat it until the contents of the bottle are uniformly milky white Put on heat resistant gloves suitable for handling glass bottl
18. ear on the lower left Press the lt A B gt button to select the desired measurement channel Select Channel A for oil in water measurements in the 0 100 ppm range See Sections III 6 and III 7 for channel selection criteria for extended range measurements Place the small aperture 8 mm cuvette adapter PN 102936 in the adapter well TD 500D User s Manual PART III 50 II 4 Calibration 0 100 ppm Oil in Water II 4 1 Prepare the Blank 1 Place 15 mL of OIW surfactant into the 500 mL volumetric flask labeled BLANK 2 Add distilled water to the flask until the fluid level reaches the 500 mL mark 3 Cap the flask and invert it several times until the OIW Surfactant is completely dissolved 4 Fill an 8 mm cuvette marked BLANK 12 to 34 full with the BLANK solution III 4 2 Prepare the Standards 1000 ppm and 100 ppm 1 Place 3 mL of OIW Surfactant into the bottle marked 1000 ppm 2 Pipette 100 uL of oil directly into the OIW Surfactant Swirl the bottle until the oil is fully dispersed in the OIW Surfactant NOTE It may be necessary to heat viscous oils for accurate pipetting A temperature of 120 F 49 C to 150 F 66 C is usually sufficient If you must heat the oil in order to pipette it you should also warm the OIW Surfactant in the 1000 ppm bottle before you add the oil This will help the OIW Surfactant fully disperse the oil 3 Add distilled water to the 1000 pp
19. econds Low battery circuit failure 25 Alarms High blank 26 Warm Up 5 seconds TD 500D User s Manual PART I 24 TD 500D User s Manual PART II fat HEX Oil in Water Analysis Procedure TD 500D User s Manual PART II 25 II 1 fastHEX Method Introduction II 1 1 Introduction The fastHEX method for the TD 500D was developed to provide a simple rapid accurate safe and environmentally friendly field procedure for the analysis of oil and grease in water The TD 500D measures the oil content of a water sample by measuring the fluorescent light emitted by oil that has been extracted into hexane Hexane is an inexpensive non fluorescent organic solvent that efficiently extracts all types of crude oil and separates out quickly on top of the water sample The fastHEX method has been in use for several years and has been field proven to give results that correlate well to US EPA Method 1664 and other official oil and grease methods The entire procedure from taking a water sample to recording results takes less than 4 minutes Because the method uses inexpensive disposable bottles and cuvettes solvent waste is reduced to a minimum Also unlike Freon and other halogenated or chlorinated solvents hexane can be disposed of in most oil and gas facilities without worrying about physical exposure II 1 2 Other Methods There have been many oil and grease analysis methods developed o
20. es at boiling water temperature 212 F 100 C Remove the bottle from the hot water While the contents are still milky white shake the bottle vigorously for at least 30 seconds Allow the OIW sample to cool until the contents change from milky white to clear NOTE You may accelerate cooling by placing the OIW bottle in a refrigerator or a container of cold water You may also mix the sample thoroughly and immediately pour 5 mL into a small disposable beaker The small volume will cool more quickly than the original sample bottle 12 13 Fill a 3 mL syringe with the OIW sample Attach an unused syringe filter to the end of the syringe Press the syringe plunger to filter the liquid into the 8 mm cuvette marked OIW Continue until the cuvette is to full Measurement Turn on the TD 500D and wait 5 seconds for the warm up count down to expire The word READY will appear on the first line of the display Also a letter A or B indicating the measurement channel will appear on the lower left TD 500D User s Manual PART III 55 19 20 21 22 23 24 Make sure that the TD 500D is set to Channel A If you see a B displayed instead of an A press the lt A B gt key until an A appears Make sure that the 8 mm cuvette adapter that is in the adapter well is the same one that was used for calibration Wipe the OIW and WSO cuvettes with
21. es only sales oilinwatermonitors com Email Service issues only service oilinwatermonitors com TD 500D User s Manual PART I 23 1 6 Appendix A Instrument Specifications TD500D Hand Held Oil in water Meter Data Sheet Crude Oil Condensate diesel 1Hydrocarbons in Water lube oil fuel oil motor oil diesel range organics 2 Ambient Temperature MinF dMax F G _ _ _ 81 5 10440 3 Area Classification General Purpose Fand Tabie Top 1 75 x 3 5 x 7 25 4 45 cm x 8 9 cm x 18 4 cm 6 Weight 13 9 oz 0 4 kg 7 Enclosure Material Non Metallic Meets IP 67 standard dustproof and waterproof 5 Dimensions GENERAL 8 IP Rating Power Supply Required a MAA celis 4 000 Samples After 3 minutes of inactivity Local Display Yes LCD Output Signal No 1 Year Factory Parts and Labor 14 Principle UV Fluorescence 15 Cuvettes Solvent Extraction Hexane Vertrel AK 225 Xylene Freon Horiba most other extraction solvents consult factory 16 Measurement Method 17 Compatible Solvents Technical Detail 18 Total Elapsed Time for Measurement Methofi lt 4 min or owners preference Better than 2 of Full Scale Better than 2 of Full Scale Up to 1000 ppm Hydrocarbon Dependent 19 Accuracy 20 Repeatability 21 Linear Range 22 Sensitivity 1 ppm Calibration Single point and blank Response Time 5 S
22. h 4 new AAA batteries Message 2 Circuit Failure Cure 2 Contact Turner Designs Hydrocarbon Instruments Inc according to directions in Section I 5 2 Message 3 High Blank Cure 3 Recalibrate the TD 500D with a clean blank Message 4 Standard too High Recalibrate Cure 4 a Use lower concentration of Calibration solution and or b Use smaller cuvette size for blank calibration standard and for sample analysis and or c Switch to channel B and recalibrate NOTE The optimum combination of channel and cuvette size will depend on the type of oil detection limit and measurement range If the above suggestions do not help please make a copy of the Troubleshooting Worksheet and then complete the worksheet with the requested information The completed worksheet should be sent to Turner Designs Hydrocarbon Instruments service oilinwatermonitors com or fax 1 559 253 1090 or your local dealer TD 500D User s Manual PART I 19 TD 500D Troubleshooting Worksheet Customer Name Company Name Company Address ___ Country Phone Number Fax Number E Mail Address 1 2 3 4 5 6 7 8 9 API or specific gravity of oil or condensate Extraction solvent Calibration method Prepared solutions or correlation If correlation is used attached correlation data and or graph Measurement channel used A or B Size of cuvette used mini cell or 8
23. in Section III 4 2 steps 1 through 8 Combine this 1000 ppm standard preparation with the unused portion of the original 1000 ppm standard that you used to calibrate the instrument You need approximately 170 mL of 1000 ppm standard to complete this procedure 3 Dilute the 1000 ppm standard with BLANK solution Section III 4 2 to create 4 additional standards with concentrations of 750 ppm 500 ppm and 250 ppm and 100 ppm See Table I I 6 1 for the required volumes TD 500D User s Manual PART III 57 Table III 6 1 Volume of Dilute with Standard 1000 ppm BLANK Standard to 750 ppm 75 mL 100 mL 500 ppm 50 mL 100 mL 250 ppm 25 mL 100 mL 100 ppm 10 mL 100 mL You may also use the 100 ppm standard used for calibration 4 Fill a 3 mL syringe with the 1000 ppm solution 5 Attach an unused syringe filter to the end of the syringe 6 Press the syringe plunger to filter the 1000 ppm solution into an 8 mm cuvette Continue until the cuvette is 1 2 to 34 full 7 Label the cuvette 1000 ppm Confine the labels to the top 0 5 13 mm of the cuvette to keep the mark out of the measurement zone 8 Repeat steps 4 through 7 for the other standards listed in Table IIT 6 1 labeling each cuvette with the appropriate concentration Also fill an 8 mm cuvette with BLANK solution which represents an oil concentration of 0 ppm 9 Turn on the TD 500D and wa
24. inearity limit compute the dispersed oil concentration using Equation III 6 1 Use Equation IIL 6 2 below to compute the value of R Equation lII 6 2 R OIW Reading WSO Reading The following examples are based upon the example data presented above Table III 6 2 Figures III 6 I and 1IT 6 2 which result in the following values TD 500D User s Manual PART III 62 Linearity Limit 250 ppm a 0 0008 b 0 8415 Example Linear Range Measurement Sample Readings OIW Reading 210 WSO Reading 10 Since the OIW Reading is less than the linearity limit 210 lt 250 use Equation 1II 5 I to compute the dispersed oil concentration Caispersed 210 10 200 ppm Example 2 Extended Range Measurement Sample Readings OIW Reading 520 WSO Reading 10 Since the OIW Reading is greater than the linearity limit 520 gt 250 use Equation III 6 2 to compute the value of R R 520 10 510 Then use Equation II 6 1 to compute dispersed oil concentration Caispersed 0 0008 510 0 8415 510 637 ppm TD 500D User s Manual PART III 63 III 7 Extended Range Measurements Channel B Channel B is provided for the measurement of extremely high concentration samples up to 10 000 ppm for most crude oils Use Channel B if your linear range determination with Channel A Section III 6 1 gives a reading of Over for any standard that is within your required analytical range
25. ing If necessary use silicon based grease to lightly lubricate the o ring Back of the TD 500D showing battery cover removed Figure 1 TD 500D Battery Compartment TD 500D User s Manual PART I 7 I 2 Operation 1 2 1 Principle of Operation The TD 500D responds to the fluorescent aromatic compounds in the target hydrocarbon The instrument must be calibrated by measuring the intensity of fluorescent light that is generated by a know concentration of hydrocarbon Once calibrated the instrument converts the fluorescent light intensity from an unknown sample into units of concentration Figure 2 shows the general relationship between fluorescence intensity and concentration Linear Range Limit Concentration Quenching or Inner Filter Effect Fluorescence lp Concentration C Detection Limit Figure 2 Fluorescence vs Concentration Every hydrocarbon will have a detection limit and a linearity limit The detection limit is the lowest concentration that the instrument can detect The linearity limit varies with each type of hydrocarbon The linear range is defined by the concentration span from the detection limit to the linearity limit As concentration increases beyond the linearity limit the TD 500D User s Manual PART I 8 slope of the line begins to reduce At very high concentrations the slope may become negative For most crude oils the linearity limit is well be
26. ion break the emulsion by agitating with a clean pipette Allow the extract to sit for several minutes after agitating the emulsion This will allow the solvent to separate from the water The solvent extract will be on the bottom of the bottle underneath the water 6 Place a blunt needle on the end of a 3 mL plastic syringe Push the syringe plunger all the way in 7 Turn the prescription bottle upside down and allow the solvent extract to settle on top of the Teflon lined septum cap 8 While holding the prescription bottle upside down insert the needle through the Teflon lined septum cap far enough for the end of the needle to be in the solvent extract 9 By pulling the syringe plunger out withdraw 1 1 5 mL of solvent extract 10 Inject the solvent extract into the cuvette mini cell or 8 mm cuvette the same type used for calibration until the cuvette is 34 full 11 Wipe the outside of the cuvette with a clean tissue or cloth to remove any liquid dirt or oil that might be present 12 Insert the cuvette into the TD 500D adapter well and close the lid 13 If the TD 500D is off press the lt ON OFF gt button and allow the instrument to proceed to the end of the countdown period 14 Make sure the proper channel A or B is shown in the lower left hand corner of the display If it is not press the lt A B gt button until the correct channel appears TD 500D User s Manual PART II 32 15 Pres
27. ion known oil concentration is prepared by dissolving a known amount of oil in a known volume of extraction solvent The instrument is calibrated by relating measured fluorescence response to the concentration of oil in the standard II 4 1 1 Calibration Standards Sample preparation for the TD 500D Oil in water Analysis Methods involves extracting the oil from a 100 mL water sample into 10 mL of solvent Therefore the oil concentration in the extraction solvent will always be 10 times greater than the oil concentration of the water sample For example a 100 ppm oil concentration in a water sample will give a 1000 ppm oil concentration in the solvent extract This 10 times concentration factor is affected during calibration i e if you want to calibrate the TD 500D for 100 ppm oil in water you would use a standard solution of 1000 ppm in the exaction solvent H 4 1 2 Calibration Standard Preparation Part 1 Prepare a 10 000 ppm Stock Standard 1 Pipette I mL 1000 uL of oil into a 100 mL volumetric flask that is approximately half full of clean extraction solvent TD 500D User s Manual PART II 34 2 Cap the flask and shake it to dissolve the oil 3 Fill the 100 mL volumetric flask to the mark with clean extraction solvent 4 Cap and shake the flask to mix Part 2 Prepare a Calibration Standard Select a concentration that is equal to the maximum anticipated in your water samples Prepare a Calibration
28. iption Quantity Part No Disposable Glass 2 cases 48 per 100585 Prescription Bottles with case Caps 180 mL Teflon Lined Septum 96 100632 Caps Disposable Syringe 3 mL 1 pack 100 100651 Luer Lok per pack Needles SS with Blunt 2 100652 end 25 mL Glass Graduated 2 100653 Cylinder 250 mL Plastic Squirt 2 100631 Wash Bottles pH Paper Indicator Strips 1 pack 100 100373 Universal 0 14 strips per pack Glass Sample Vials 20 2 100621 mL with Teflon Lined Caps Plastic Disposable Pack of 100 100675 Transfer Pipette The TD 500D Calibration Kit includes the necessary laboratory supplies required for preparing samples and for making known oil standards for calibrating the TD 500D The TD 500D Calibration kit is sufficient for 50 to 80 calibrations TD 500D User s Manual PART II 43 The following list of items is included in the TD 500D Calibration Kit IL 6 3 TD 500DTM Calibration Kit P N 100367 Description Quantity Part No 100 mL Glass Volumetric 3 100368 Flask with Teflon Lined Cap 10 100 Microliter Digital 1 100369 Micropipette 100 Microliter Disposable 1 Pack of 100370 Plastic Pipette Tips 96 tips 10 mL Glass Graduated 2 100371 Cylinder Hexagonal Base 50 mL Glass Graduated 2 100372 Cylinder Hexagonal Base pH Paper Indicator Strips 1 pack 100 100373 Universal 0 14 strips per pack Plastic Disposable Transfer Pack of 100 100675 Pipette
29. it 5 seconds for the warm up count down to expire The word READY will appear on the first line of the display Also a letter A or B indicating the measurement channel will appear on the lower left 10 Make sure that the TD 500D is set to Channel A If you see a B displayed instead of an TD 500D User s Manual PART III 58 11 12 13 14 Record the BLANK 0 ppm reading 16 A press the lt A B gt key until an A appears Make sure that the 8 mm cuvette adapter that is in the adapter well is the same one that was used for calibration Wipe each standard cuvette with a Kimwipe to remove any fingerprints dirt or liquid droplets that might be present Place the BLANK cuvette in the adapter well and close the lid Press the lt READ gt button Repeat Steps 13 through 15 for the 1000 ppm standard and each of the standards listed in Table 11 6 1 For the purpose of explanation example readings are listed in Table III 6 2 NOTE The readings in Table III 6 2 are for example only Your readings will be somewhat different Table IlI 6 2 TD 500D Standard Reading Concentration 710 1000 ppm 580 750 ppm 420 500 ppm 248 250 ppm 100 100 ppm 0 0 ppm BLANK 17 Enter the data from your measurements into a spreadsheet program e g Microsoft Excel TD 500D User s Manual PART III 59 18 Plot the data in a chart wi
30. lection guidelines You may switch channels by pressing lt A B gt only when the HOME screen is displayed NOTE Each channel will store a separate calibration NOTE Analyze your samples on the calibrated channel only For example if your TD 500D is calibrated on Channel B then use Channel B for sample analysis Using a different channel for sample analysis will give incorrect readings TD 500D User s Manual PART I 14 I 3 General Considerations for Analysis 1 3 1 Sample Analysis 1 2 me 1 3 2 Turn on the instrument Make sure the proper channel A or B is displayed Insert your sample in a clean cuvette and put the cuvette in the appropriate cuvette adapter Be sure to wipe any oil or finger prints from the outside of the cuvette Insert the cuvette adapter in the TD 500D adapter well and press lt READ gt The instrument will measure and average the signal over a 5 second interval The result will be displayed on the screen The top left corner will display WAIT for 5 seconds Once WAIT disappears another sample reading can be performed General Information and Precautions The adapter well with the appropriate adapter accepts either the mini cell cuvettes or the 8 mm round cuvettes Consult factory for guestions regarding use of various cuvettes Take care not to spill samples into the adapter well Promptly wipe any spills Simple alcohol rinse of the adapter well sh
31. m bottle until the liquid level reaches the 100 mL mark Cap the bottle and shake it vigorously for at least 15 seconds TD 500D User s Manual PART III 51 Place the bottle in the hot water bath and heat it until the contents are uniformly milky white in appearance Put on heat resistant gloves suitable for handling glass bottles at boiling water temperature 212 F 100 C Remove the bottle from the hot water and while the contents are still milky white shake the bottle vigorously for at least 30 seconds Allow the 1000 ppm standard to cool to room temperature NOTE You may accelerate cooling by placing the 1000 ppm standard in a refrigerator or a container of cold water HL4 3 Using a 10 mL pipette add exactly 10 mL of 1000 ppm standard to the 100 ppm bottle Add the BLANK solution to the 100 ppm bottle until the liquid level reaches the 100 mL mark Cap the 100 ppm bottle and shake it until the contents are completely mixed Filla3 mL syringe with the 100 ppm standard Attach an unused syringe filter to the end of the syringe Press the syringe plunger to filter the liquid into the 8 mm cuvette marked 100 ppm Continue until the cuvette is 2 to full Calibrate the TD 500D Turn on the TD 500D and wait 5 seconds for the warm up count down to expire The word READY will appear on the first line of the display
32. nalysis will result in incorrect readings STD 1 2 7 Calibration Standard Value vaL Assign a numeric value between 1 and 9999 for your known standard solution This is done after performing the calibration as the last step of the calibration procedure Make sure the instrument is set to the proper channel A or B then use the up and down arrows to adjust the standard value Holding this button down will activate faster scrolling When finished press lt ESC gt or lt ENT gt to accept the value and return to the Home screen NOTE No units are shown on the screen AN 1 2 8 Diagnostic Information DAS Press lt DIAG gt to access the diagnostic screens Record the FS BLK and FS STD values shown on the screen for future reference The FS BLK is the fluorescence response of the TD 500D for the blank i e clean extraction solvent The FS STD is the fluorescence response of the TD 500D for the calibration standard For best performance the FS STD should be greater than 2 The FS STD reading is the fluorescence value of the standard above the fluorescence value of the blank The maximum values are 100 FS Press lt ESC gt when finished to return to the Home screen TD 500D User s Manual PART I 13 1 2 9 Channel Selection ae Press lt A B gt for switching the channels on the TD 500D There are two channels on the TD 500D Channel A and Channel B Please refer to Section I 2 2 for channel se
33. ncentration of the hydrocarbon You must make sure the instrument is calibrated in the linear range see Section I 2 1 The linear range is dependent upon the sample cuvette size and the optical channel of the TD 500D thus using a smaller cuvette size and or changing the optical channel can extend the linear range The glass mini cell cuvettes provide a smaller cell diameter than the 8 mm round cuvettes TD 500D User s Manual PART I 16 For heavy and highly fluorescent oils we recommend using the mini cells with channel B for the widest possible linear range The linear range must always be checked after the first calibration by diluting the calibration solution half with blank and then measuring the concentration on the TD 500D If the displayed result is greater than half the original standard concentration allowing for some error due to dilution the TD 500D calibration is beyond the linear range 1 3 4 Sensitivity The instrument s sensitivity is measured by the FS STD value on the diagnostic screen For best results the FS STD should be greater than 2 The sensitivity should be checked when initially calibrating the TD s00D The calibration and operation guidelines mentioned in this manual work with most oils However some refined oils and condensates do not have enough fluorescence FS STD lt 2 If the FS STD is less than 2 or if the calibration screen says Standard lt Blank Recalib
34. near calibration function When the instrument is operating on Channel B the No Solvent Method can measure oil concentrations up to 10 000 ppm eliminating the need to dilute highly concentrated oil in water samples prior to measurement In practice Channel A is best for low concentration measurements Channel B should only be used for extremely high concentration measurements that cannot be performed with Channel A The procedures given below will enable you carry out oil in water analyses using the No Solvent Method For a more detailed discussion of the analytical principles please refer to the paper entitled No Solvent Oil in Water Analysis A Robust Alternative to Conventional Solvent Extraction Methods which is available on the Turner Designs Hydrocarbon Instruments web site www oilinwatermonitors com TD 500D User s Manual PART III 47 HI 2 Equipment The No Solvent Method requires a TD 500D Oil in Water Analyzer and the auxiliary equipment listed in the following table Part numbers are listed for items that are available from Turner Designs Hydrocarbon Instruments Other common laboratory items can be purchased from a variety of sources e g YWR International LLC www vwr com Wn Part Item Description Quantity Manihot 8 mm cuvettes Box of 400 50957 8 mm cuvette adapter 1 102935 large aperture 8 mm cuvette adapter 1 102936 small aperture OIW Surfactant
35. normally results from a 2 order polynomial fit Figure III 6 2 1200 1000 800 _ C 0 0008R 0 8415R 600 a I Standard Concentration ppm 0 100 200 300 400 500 600 700 800 TD 500D Reading In this example the value of a is 0 0008 and the value of b is 0 8415 TD 500D User s Manual PART III 61 The TD 500D cannot be calibrated directly with a 2 order polynomial function Therefore oil concentrations above the linearity limit must be computed externally from readings taken from the TD 500D display Use the following procedure 1 Calibrate the TD 500D using the 100 ppm standard Section III 4 2 Perform the linear range determination Section III 6 1 Record the linearity limit 3 Use a spreadsheet program to fit the linear range data with a 2 order polynomial Remember to force the fit through the origin 0 0 In Microsoft ExcelTM this is done by checking the Set intercept to checkbox and entering the value of 0 0 in the adjacent field 4 Record the values of a and b Refer to the example in Figure III 6 2 5 Prepare an OIW sample and a WSO sample and record the OIW Reading and WSO Reading Section III 5 6 If OIW Reading is less than or equal to the linearity limit Use Equation III 5 1 to compute the dispersed oil concentration 7 If the OIW Reading is greater than the l
36. on and or b Use smaller cuvette size for blank calibration standard and for sample analysis and or c Switch to channel B II 4 2 Option 2 Calibrating by Correlation to an External Method i e US EPA 1664 or other standard oil and grease method The TD 500D Oil in water Meter can be calibrated to give oil concentrations equivalent to an external analysis method This method has been used extensively for offshore platforms in the Gulf of Mexico to give results equivalent to EPA Method 1664 The method is based on establishing a correlation between the TD 500D response of the extracted sample and the oil concentration determined TD 500D User s Manual PART II 37 by the external method performed at an appropriate analysis laboratory Procedures for performing this type of calibration depend strongly on the type of oil the desired analysis range and the nature of the external method Please consult the factory for additional information and guidance TD 500D User s Manual PART II 38 II 5 Using the TD 500DTM Oil in water Meter CheckPOINT Solid Reference Standard The CheckPOINT Solid Reference Standard is used to verify the TD 500D Oil in water Meter calibration and performance prior to sample analysis procedure The CheckPOINT Solid Standard contains a fiber that produces an adjustable signal that can be set to be equal to the calibration solution The fiber is covered by an attenua
37. ould neutralize any potential chemical attack The TD 500D is very sensitive and even small amounts of material from a previous sample may result in errors Use a clean cuvette for each reading Wipe the outside of the cuvette with a Kimwipe or similar laboratory tissue Do not use paper towels or kitchen wipes because the optical brighteners in the paper may cause a false reading TD 500D User s Manual PART I 15 e Fill the cuvette at least 75 full significant error will result if the cuvette is not properly filled Use a minimum of 75 uL 0 075 mL in a mini cell cuvette and a minimum of 1 mL in an 8 mm diameter cuvette for best results e The cuvette MUST BE CLEAN AND DRY on the outside when taking readings Moisture and condensation or fingerprints on the outside can result in error Use laboratory grade tissues or wipes for wiping the cuvettes e Avoid air bubbles in the cuvette Bubbles in samples may cause drifting of the reading Slight tapping on the outside cuvette wall should help remove any bubbles e Avoid transferring emulsions to the cuvette since bubbles of water in the extract will cause incorrect measurements e Always make sure to analyze the samples on the calibrated channel only Using a different channel for sample analysis will give incorrect readings 1 3 3 Linear Range The linear range is the concentration range within which the readout of the TD 500D is directly proportional to the co
38. popular calibration method in the USA offshore industry is by correlation to the standard US EPA method For details about this method and alternatives see Section II 4 Another way to calibrate is using a known standard made from the target oil and a blank solvent This method is generally used in the field for quick analysis or when an official laboratory is not available For a discussion regarding the various philosophies of calibration please contact service oilinwatermonitors com or visit our web site Before the TD 500D can be used to analyze a sample you must calibrate it with a blank and a calibration standard containing your target hydrocarbon If you are following a solvent extraction method use the pure extraction solvent for the blank Prepare the calibration standard by dissolving a known amount of hydrocarbon in a known volume of extraction solvent The standard solution will then have a known concentration This is the standard value STD VAL The TD 500D can also be calibrated by correlating the instrument readings to another oil in water analysis method i e US EPA 1664 TD 500D User s Manual PART I 12 NOTE Make sure that you use the same size cuvette for blank calibration solution and sample analysis For example if you use the mini cell cuvettes for blank and calibration solution then use must mini cell cuvettes for sample analysis also Using different size cuvettes for calibration and sample a
39. r s Manual PART I 5 The TD 500D is normally used with a solvent extraction method such as the Oil in water Analysis Procedure described in Part II of this manual In this method the target hydrocarbon is extracted into a suitable solvent The TD 500D measures the hydrocarbon content of the extract and calculates the hydrocarbon content in water NOTE The TD 500D is not explosion proof or intrinsically safe It is not designed in any way to be used in an explosion proof designated area 1 1 2 Getting Started 1 1 2 1 Incoming Inspection Upon receiving your instrument please inspect everything carefully and make sure all ordered accessories are present All shipments include e TD 500D Handheld Oil in Water Meter e 4 AAA Batteries e User s Manual e Recommended Accessories as ordered o Carrying Case o CheckPOINT M Solid Standard o Appropriate cuvettes and adapters 1 1 2 2 Battery Installation 1 The battery compartment is located at the back of the instrument Loosen the screw and remove the battery compartment cover See Figure 1 2 Install the 4 AAA batteries Orient the batteries as indicated by the diagrams inside the battery compartment TD 500D User s Manual PART I 6 3 Replace the battery compartment cover and tighten the screw The cover has an o ring which creates a watertight seal The battery compartment cover may be difficult to install if there is no lubrication on the o r
40. rate then follow the steps below 1 Make sure you are using clean solvent and clean cuvettes 2 If the TD 500D is set to channel B then switch to channel A and or 3 Use larger cuvette and or 4 Use higher concentration of oil in solvent for calibrating the TD 500D 5 Ifthe above suggestions do not help contact Turner Designs Hydrocarbon Instruments Service Department service oilinwatermonitors com TD 500D User s Manual PART I 17 1 3 5 Temperature Considerations Perform all calibrations and sample analysis at ambient temperature 1 3 6 Data Quality The TD 500D is only as accurate as the standards that are used to calibrate it and the accuracy of the measurement of the standards into the solvent This is why it is important to take care when preparing standards samples and blank One should follow good laboratory practices when handling reagents and preparing standard solutions Also follow all solvent handling rules for the specific solvent and the specific facility Use safety glasses with side shields or splash goggles while handling acids and solvents Use nitrile examination gloves to protect your hands Consult your company s safety guidelines for detailed safety instructions TD 500D User s Manual PART I 18 I 4 Troubleshooting The following messages can appear on the TD 500D display screen Message 1 Low Battery Cure 1 Replace the batteries wit
41. s 21 1 5 2 Service During and After Warranty Period se Gu iT YL SD 21 Appendix A Instrument Specifications 24 TD 500D User s Manual PART I 2 PART II II 1 fastHEX Method Introduction 26 II 2 fastHEX Method Analysis Procedure for Lighter than Water Extraction Solvents 28 II 3 Analysis Procedure for Heavier than Water Extraction Solvents eeueneeeen 31 II 4 Calibration Procedure for the TD 500D 34 II 4 1 Option 1 Calibrating with Standard SO titiOn Si nue dn Yn 34 II 4 2 Option 2 Calibrating by Correlation to an External Method i e US EPA 1664 or other standard oil and grease tmethodius eie ue a RH 37 II 5 Using the TD 500D Oil in water Meter CheckPOINTTM Solid Reference Standard 40 II 6 Extraction and Calibration Procedure Method Supplies cee eeeceeseeceseeeeeneeeeneees 42 TD 500D User s Manual PART I 3 HI 1 II 2 II 3 II 4 TIS II 6 HI 7 II 8 PART III No Solvent Method for Oil in Water Analysis with the TD 500D 46 Equipment een ew YW GI 48 Initial Preparation 00 eee eeeeees 50 Calibration 0 100 ppm Oil in Water 51 Analysis 0 100 ppm Oil in Water 54 Extended Range Measurements Channel Asea a a T e 57 Extended Range Measurements Channel Bes eonia yd i 64 Equipment Clean up and Re use 65 T
42. s the lt A B gt button until the correct channel appears Press the lt CAL gt button and then press lt ENT gt Press lt ENT gt to read the response of the Blank Fill a new cuvette with the Calibration Standard Wipe the outside of the cuvette with a clean laboratory grade tissue to remove any liguid dirt or oil that might be present Insert the Calibration Standard cuvette into the TD 500D adapter well and close the lid Press lt ENT gt to read the response of the Calibration Standard Press lt ENT gt within 10 seconds to store the calibration Press the lt STD VAL gt button Enter the STD VAL as 1 10 of the concentration of the Calibration Standard Adjust the Calibration Value using the lt A gt and lt W gt buttons Press either button once for each increment of STD VAL Holding either of these buttons down will activate faster scrolling to the desired value Press lt ENT gt to accept the STD VAL TD 500D User s Manual PART II 36 The calibration is now complete The calibration will be stored and maintained when the instrument is turned off II 4 1 4 Notes on error conditions and remedial procedures The following messages can appear on the TD 500D display screen while calibrating the TD 500D Message 1 High Blank Cure 1 Recalibrate the TD 500D with a clean blank Message 2 Standard too High Recalibrate Cure 2 a Use lower concentration of calibration soluti
43. s the lt READ gt button and then record the reading after the WAIT message disappears If the TD 500D was calibrated using a loop up table use the loop up table to convert the reading to oil concentration Dispose of the water extraction solvent cuvette and prescription bottle in a safe environmentally responsible manner in accordance with your company s procedures NOTE If the TD 500D Oil in Water Meter reads OVER or the sample reads higher than the correlation chart or look up table this means the oil and grease concentration is too concentrated The following steps should be performed to dilute the sample extract 1 Dilute the solvent extract 5 times by combining mL of solvent extract with 4 mL of clean extraction solvent and mix the diluted sample extract Measure the diluted sample extract using the TD 500D Oil in Water Meter Steps 10 through 15 on page 32 33 Record the concentration of the diluted sample extract using the correlation chart Step 16 on page 33 Multiply the result from Step 3 by five 5 to calculate the true oil and grease result in the water sample TD 500D User s Manual PART II 33 II 4 Calibration Procedure for the TD 500D For all extraction solvents 11 4 1 Option 1 Calibrating with Standard Solutions The TD 500D Oil in water Meter can be calibrated with a standard solution of oil in extraction solvent The standard solut
44. th the TD 500D Reading on the X axis and the Standard Concentration on the Y axis 19 Draw a straight line that passes through the origin and as many data points as possible Estimate the linear range The example data from Table III 6 2 is plotted in Figure HI 6 1 The linear range is approximately 250 ppm Figure III 6 1 1200 1000 oo a D o Standard Concentration ppm 3 o 0 100 200 300 400 500 600 700 800 TD 500D Reading III 6 2 Measurements Beyond the Linear Range The TD 500D can also make accurate oil concentration measurements above the linearity limit through the use of a non linear calibration function At oil concentrations above the linearity limit TD 500D fluorescence response R follows the non linear relationship shown in Equation HI 6 1 TD 500D User s Manual PART III 60 Equation IIL 6 1 Caispersed aR bR Caispersed 18 dispersed oil concentration and a and b are calibration constants The calibration constants a and b can be established by fitting the data from the linear range determination Section 18 Linear Range Determination to a 2 order polynomial This can be done with most spreadsheet programs e g Microsoft ExcelTM The 2 order polynomial that fits the example data in Table III 6 2 is illustrated in Figure III 6 2 The fit was forced through the origin to eliminate the third term that
45. the concentration range of interest or if channel A is over range for the calibration standard Proper channel selection depends on the TD 500D User s Manual PART I 9 type of hydrocarbon and the desired concentration range The proper channel is determined when the calibration on the particular channel and using a particular cuvette size produces a diagnostic reading of FS Std gt 2 but less than 100 while at the same time maintaining linearity over the measurement range See Sections I 3 3 and 1 3 4 for further details Channel A In most cases use channel A for measuring following hydrocarbons in water or soil Gas Condensate Diesel Marine Diesel Fuel Oil 6 lt 1 ppm Lube Oil Crude Oil in Produced Water lt 5 ppm Channel B In most cases use channel B for measuring Crude Oil in Produced Water 0 gt 100 ppm Heavy crude oils higher concentrations Heavy fuel oils higher concentrations 1 2 3 Cuvette Selection Guidelines Use the smaller mini cell cuvettes P N 50952 for measuring heavy crude oil and other highly fluorescent oils in water Use the larger 8 mm diameter cuvettes P N 50957 for diesel gas condensates lube oil and other refined hydrocarbons in water or for very low concentrations of crude oil in water The cuvette size is determined when the calibration on the particular channel size produces a diagnostic reading of FS Std gt 2 but less than 100 while at the same time
46. tion screw Opening the attenuation screw counter clockwise rotation will increase the exposure of the fiber and hence will increase the reading on the TD 500D Closing the attenuation screw clockwise rotation will decrease the readings on the TD 500D The following procedure describes how a calibration value is assigned to the CheckPOINTTM Solid Standard Once the CheckPOINTTM Solid Standard has a calibration value assigned to it the TD 500D Oil in water Meter can be recalibrated in the field as necessary The CheckPOINT Solid Standard is also used to verify instrument performance or calibration stability 11 5 1 Adjusting the CheckPOINT Solid Standard 1 Calibrate the TD 500D Oil in water Meter by Option 1 Page 36 or by Option 2 Page 40 mentioned in this manual 2 Remove the cuvette and cuvette adapter Remove the CheckPOINT Solid Standard from its storage box Using the 0 050 Allen wrench provided loosen the locking setscrew on the back of the solid standard by turning it counterclockwise one turn W TD 500D User s Manual PART II 39 Picture 1 Loosening the locking setscrew on the backside of the adjustable CheckPOINT Solid Reference Standard 4 Insert the CheckPOINT Solid Standard with the dog ear handle positioned closest to the back of the adapter well Picture 2 Placing the adjustable CheckPOINT Solid Reference Standard in the TD 500D 5
47. vent Method is designed to determine the dispersed oil content of a water sample It also provides a measure of the fluorescent water soluble organic WSO compounds The analysis is based upon two samples taken from the same water stream The first called the OIW sample is a sample of water that has been treated with the OIW Surfactant and filtered into a measurement cuvette The OIW sample contains dispersed oil that has been solubilized by the OIW Surfactant as well as the WSO present in the water The second sample called the WSO sample contains no surfactant It is simply filtered into a measurement cuvette to remove dispersed oil leaving only WSO Both the OIW and WSO cuvettes are measured by the TD 500D The dispersed oil concentration is calculated by subtracting the WSO measurement from the OIW measurement Dispersed oil is reported in units of parts per million ppm WSO is reported in units of dispersed oil TD 500D User s Manual PART III 46 equivalents One dispersed oil equivalent is the fluorescence intensity emitted by 1 ppm of dispersed oil The TD 500D has two measurement channels A and B With the No Solvent Method the linear range of Channel A measurements is 0 100 ppm dispersed oil for all crude oils Many crude oils can be measured at oil concentrations below ppm Channel A measurements can be extended to 750 ppm and higher through the use of a non li
48. ver the years and many of them are useful If you have questions regarding the viability of any method please consult our Service Department or the appropriate department in your own company TD 500D User s Manual PART II 26 IL 1 3 Alternative Solvents Although the fastHEX method was originally intended to use hexane its solvent extraction and measurement procedures can also be applied to other lighter than water solvents xylene petroleum ether etc In addition the procedure can be modified allowing use of a variety of heavier than water solvents Vertrel MCA Ashikleen AK 225 perchloroethylene etc Analysis procedures for lighter than water solvents and heavier than water solvents are given in Section II 2 and Section II 3 respectively II 1 4 Important note regarding solvents Some solvents especially Vertrel MCA Ashikleen AK 225 and chloroform can damage the TD 500D if left in contact with the plastic parts If you spill solvents on the case or inside the adapter well flush the contacted area immediately with isopropyl alcohol and dry the area with a non abrasive lab tissue Always follow safety rules for handling and disposing of solvents TD 500D User s Manual PART II 27 II 2 fastHEX Method Analysis Procedure for Lighter than Water Extraction Solvents See page 36 for Calibration Procedure This procedure is for use with lighter than water extraction solvents such as
49. yond 1000 The TD 500D must be operating in the linear range to display accurate results The linear range can be optimized for any monitoring application by selecting the best combination of measurement channel A or B and cuvette size mini cell or 8 mm cuvette See Section I 3 for configuration guidelines After calibration you must perform a simple test to determine if your calibration standard is in the linear range First select a channel and proper cuvette size and calibrate the TD 500D with a standard solution of known concentration Then prepare a new standard that is half the concentration of the standard solution by mixing equal volumes of the original calibration standard and pure blank Place the diluted standard in a sample cell place the cell in the TD 500D and press lt READ gt If the displayed result is greater than half the original standard concentration allowing for some error due to dilution the TD 500D calibration is beyond the linear range The linear range is dependent upon the sample cuvette size and the optical channel of the TD 500D thus using a smaller cuvette size and or changing the optical channel can extend the linear range I 2 2 Channel Selection Guidelines Channel A is generally used where high sensitivity is required Channel A is ideal for weakly fluorescent hydrocarbons or for very low concentrations of hydrocarbons Channel B is used whenever Channel A gives poor linearity over

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