TD-500D ™ - NAG Marine
Contents
1. 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 Sections 8 page 26 and 9 page 29 respectively 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 sample compartment 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 25 8 fastHEX Method Analysis Procedure for Lighter than Water Extraction Solvents See page 33 for Calibration Procedure This procedure is for use with lighter than water extraction solvents such as Hexane Cyclohexane Heptane Octane Xylenes may give high blank reading Toluene may give high blank reading NOTE 1 Please use this procedure even if your solvent is not listed above and you are using lighter than water extraction solvent NOTE 2 If you are using heavier than water extraction solvent then refer to section 9 page 29 of this manual for heavier than water extraction solvent analysis procedure Analysis Procedure 1 Collect 100 ml of contaminated wat2. sample analysis Using a different channel for sample analysis will give incorrect readings TD 500D User s Manual 13 3 General Considerations for Analysis 3 1 Sample Analysis Turn on the instrument 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 sample chamber 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 3 2 General Information and Precautions 1 The sample compartment with the appropriate adapter accepts either the minicell cuvettes or the 8mm round cuvettes Consult factory for questions regarding use of various cuvettes Take care not to spill samples into the sample chamber Promptly wipe any spills Simple alcohol rinse of the sample chamber should neutralize any potential chemical attack TD 500D User s Manual 14 3 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 Kim Wipe or similar laboratory wipe Do not use paper towels or kitchen wipes because the optical brig
3. 5 Dimensions GENERAL 6l Weight Enclosure Material Non Metallic Meets IP 67 standard dustprooi land waterproof 9 Power Supply Required 4 AAA Cells 1 000 Samples 10 Automatic Power Down After 3 minutes of inactivity 11 Local Display 12 Output Signal 6 Measurement Method Solvent Extraction Hexane Vertrel AK 225 Xylend Freon Horiba most other extraction solvents consult factory 8 IP Rating 17 Compatible Solvents 18 Total Elapsed Time for Measurement MethofK 4min or owners preference Technical Detail Accuracy Better than 2 of Full Scale 0 Repeatability Better than 2 of Full Scale 20 gt Up to 1000 ppm 22 Sensitivity 1 ppm 23 Calibration Single point and blank 24 Response Time 5 Seconds a5laisenis Low battery circuit failure High blank TD 500D User s Manual 22 JastHiEx Oil in Water Analysis Procedure TD 500D Oil in Water Meter ENTER TURNER NJ User s Manual PART II Version 1 0 P N 100668 2023 N Gateway Ste 101 Fresno CA 93727 United States of America Phone 559 253 1414 Fax 559 253 1090 Internet http www oilinwatermonitors com E Mail sales oilinwatermonitors com TD 500D User s Manual 23 7 fastHEX Method Introduction Introduction The fastHEX method for the TD 500D was developed to provide a simple rapid accurate safe and environmentally fr
4. If the instrument and or the problem is determined to be repairable under warranty the instrument will be repaired and returned free of charge and freight costs for all customers in the contiguous continental United States Outside the continental United States the customer will pay all shipping costs customs duties and special documentation if required in connection with repair and warranty service of the unit 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 20 Address for Return Shipments Turner Designs Hydrocarbon Instruments Inc Attn Instrument Repair RMA __ 2023 N Gateway Blvd Suite 101 Fresno CA 93727 USA Contact Information for Sales and Service Main Phone Number 559 253 1414 Main Fax 559 253 1090 Email Sales sales oilinwatermonitors com Email Service service oilinwatermonitors com TD 500D User s Manual 21 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 Min F Max F q 104 4 3 Area Classification General Purpose 4 Mounting Hand Table Top 1 75 M35 725 4 45m x 8 9cm x 18 4cm
5. ie ra 19 6 Appendix A Instrument Specifications eeieeeeeeeee 22 TD 500D User s Manual PART II 7 FastHEX Method Introduction 24 8 FastHEX Method Analysis Procedure for Lighter than Water Extraction Solvents 26 9 Analysis Procedure for Heavier than Water Extraction Solvents 29 10 Calibration Procedure for the TD S00D 33 10 1 Option 1 Calibrating with Standard Solution a 32 cissgacss ties et needed hie 33 10 2 Option 2 Calibrating by Correlation to an External Method 0 cece eee eens 37 11 Using the TD 500D Oil in Water Meter CheckPOINT Solid Reference Standard 38 12 Extraction and Calibration Procedure Method Supplies eeii ara edaser ese ebidhaassnats 42 TD 500D User s Manual 3 1 Introduction 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 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 or aromatic solvents in water or soil Contact us about the TD 3100 bench top oil in water analyzer for measurement of gasoline BTEX or aromatic chemicals in water Please contact sales oilinwater
6. of the extracted sample and the oil concentration determined 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 37 11 Using the TD 500D 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 attenuation 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 CheckPOINT solid standard Once the CheckPOINT 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 Adjusting the CheckPOINT Sol
7. 00D Oil in Water Meter 1 Before calibration begins you must select a TD 500D channel A or B and a cuvette size Minicell cuvette or 8 mm cuvette See section 2 2 page 8 for channel selection TD 500D User s Manual 34 guidelines See section 2 3 page 9 for cuvette selection guidelines 2 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 3 Insert the Blank cuvette into the TD 500D sample compartment and close the lid 4 Ifthe TD 500D is off press the lt ON OFF gt button and allow the instrument to proceed to the end of the countdown period 5 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 6 Press the lt CAL gt button and then press lt ENT gt 7 Press lt ENT gt to read the response of the Blank 8 Fill a new cuvette with the Calibration Standard Wipe the outside of the cuvette with a clean laboratory grade tissue to remove any liquid dirt or oil that might be present 9 Insert the Calibration Standard cuvette into the TD 500D sample compartment and close the lid 10 Press lt ENT gt to read the response of the Calibration Standard TD 500D User s Manual 35 11 Press lt ENT gt within 10 seconds to store the ca
8. 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 TD 500D User s Manual J linearity limit As concentration increases beyond the linearity limit the 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 beyond 1000ppm 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 3 page 14 for configuration guidelines After calibration you can 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 stand
9. D 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 1 Damage resulting from contact with solvents or other corrosive liquids and gases 2 Damage resulting from contact with corrosive materials or atmosphere 3 Damage caused by modification of the instrument 4 Damage caused by improper handling and physical abuse of the instrument 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 Customer Service or Applications Departments and TD 500D User s Manual 19 describe the nature of the problem See contact information on page 21 2 Make minor adjustments or tests as suggested by Turner Designs Hydrocarbon Instruments Inc personnel 3 For return 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 500D the appropriate adapter the CheckPOINT 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
10. POINT Solid Standard o Appropriate Cuvettes and Adapters as ordered 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 TD 500D User s Manual 5 2 Install the 4 AAA batteries Orient the batteries as indicated by the diagrams inside the battery compartment 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 ring 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 2 Operation 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 I Concentration C Detection Limit Figure
11. TURNER Doesxcns Hydrocarbon Instruments TD 500 D Handheld Oil in Water Meter User s Manual PART I Version 1 1 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 Table of Contents PART I 1 Introduction Lib Descnpt Otic cceita wok doh anck nk 4 1 2 Getting Started merienn cis 5 2s Op rations riii 7 2 1 Principle of Operation 7 2 2 Channel Selection Guidelines 8 2 3 Cuvette Selection Guidelines 9 2 4 TD 500D Keypad cceeceee ee ee es 10 2 5 Instrument Power up ceeee ee ener 10 2 6 Calibrations user hic n a TAEA 11 2 7 Calibration Standard Value 12 2 8 Diagnostic Information 006 12 2 9 Channel Selection cc cece eee eens 13 3 General Considerations for Analysis 3 1 Sample Analysis e cee eeeeenees 14 3 2 General Information and Precautions 14 3 3 Linear Ranges 222 22ccs neve ster ig ereere 15 3 4 Sensitivity 0 cee cece eee eee e eee eees 16 3 5 Temperature Considerations 17 3 6 Data Quality cece cece cence nent ens 17 4 Troubleshooting cccce cece eee 18 5 Warranty DoJ Terms ccticivisdsier diet hid cn eee tae 19 5 2 Service During and After Warranty Period rera sien te
12. a Exit return to measurement Home screen Power ON OFF Channel select Calibrat Enter concentration of ee calibration standard Diagnostic Advance to Screen next screen Z 2 5 Instrument Power up oFF 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 mwa 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 TD 500D User s Manual 10 The channel indicator will display the channel that was active during the instrument s previous use 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 s 2 6 Calibration Cad There are many ways to calibrate the TD 500D The most 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 10 page 34 Another way to calibrate is using a known standard made from the target oil and a blank solvent This meth
13. annel 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 ng 2 8 Diagnostic Information O 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 TD 500D User s Manual 12 0 100 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 XS 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 2 2 page 8 for channel selection guidelines You may switch channels by pressing lt A B gt only when the HOME screen is displayed 2 9 Channel Selection wB NOTE 1 Each channel will store a separate calibration NOTE 2 Analyze your samples on the calibrated channel only For example if your TD 500D is calibrated on Channel B then use channel B for
14. ard concentration you are 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 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 TD 500D User s Manual 8 used whenever Channel A gives poor linearity over the concentration range of interest or if channel A is over range for the calibration standard Proper channel selection depends on the type of hydrocarbon and the desired concentration range 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 2 3 Cuvette Selection Guidelines Use the smaller minicell cuvettes P N 50952 for measuring heavy crude oil and other highly fluorescent oils in water Use the bigger 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 TD 500D User s Manual 9 2 4 TD 500D Keypad Make
15. er in a clean graduated prescription bottle or suitable graduated glass container 2 Add 6N HCI 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 26 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 6 Carefully release the pressure from the bottle 7 Fill the appropriate cuvette Minicell or 8 mm cuvette 3 4 full with 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 sample compartment and close the lid 9 Ifthe 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
16. g list of items are included in the TD 500D Calibration Kit TD 500D User s Manual 43 TD 500D 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 100374 Pipette 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 2 1 page 7 and section 3 4 page 16 of the TD 500D Oil in Water Meter User s Manual to verify the cuvette choice TD 500D User s Manual 44
17. hloride Horiba S 316 Methylene Chloride NOTE 1 Please use this procedure even if your solvent is not listed above and you are using heavier than water extraction solvent NOTE 2 If you are using lighter than water extraction solvent then refer to section 8 page 26 of this manual for lighter than water extraction solvent analysis procedure Analysis Procedure 1 Collect 100 ml of produced water in a clean graduated prescription bottle 2 Add 6N HCI 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 29 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 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 ups
18. hteners in the paper may cause a false reading 4 Fill the cuvette at least 50 full significant error will result if the cuvette is not properly filled Use a minimum of 75 ul 0 075ml in a minicell cuvette and a minimum of 1 ml in an 8 mm diameter cuvette for best results 5 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 6 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 7 Always make sure to analyze the samples on the calibrated channel only Using a different channel for sample analysis will give incorrect readings 3 3 Linear Range The linear range is the concentration range within TD 500D User s Manual 15 which the readout of the TD 500D is directly proportional to the concentration of the hydrocarbon You must make sure the instrument is calibrated in the linear range see section 2 1 page7 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 minicell cuvettes provide a smaller cell diameter than the 8 mm round cuvettes For heavy and highly fluorescent oils we recom
19. id Standard 1 Calibrate the TD 500D Oil in Water Meter by Option page 33 or by Option 2 page 37 mentioned in this manual 2 Remove the cuvette and cuvette adapter 3 Remove the CheckPOINT solid standard from its storage box Using the 0 050 Allen wrench provided loosen the locking setscrew TD 500D User s Manual 38 on the back of the solid standard by turning it counterclockwise one turn 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 sample compartment Picture 2 Placing the adjustable CheckPOINT Solid Reference Standard in the TD 500D 5 Ifthe 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 TD 500D User s Manual 39 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 Picture 3 Adjusting the value on the CheckPOINT Solid Reference Standard by turning the attenuation screw Repeat steps 5 8 until the so
20. ide 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 Minicell 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 sample compartment and close the lid TD 500D User s Manual 30 13 14 15 16 17 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 press the lt A B gt button until the correct channel appears Press 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 3 If the TD 500D Oil in Water Meter reads OVER or the sample reads higher than the correlation chart or look up table this mean
21. iendly 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 Other Methods There have been many oil and grease analysis methods developed over 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 24 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
22. libration 12 Press the lt STD VAL gt button 13 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 14 Press lt ENT gt to accept the STD VAL The calibration is now complete The calibration will be stored and maintained when the instrument is turned off Notes on error conditions and remedial procedures 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 solution and or b Use smaller cuvette size for blank calibration standard and for sample analysis and or c Switch to channel B TD 500D User s Manual 36 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
23. lid standard reads the concentration value of interest At this point remove the 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 11 as the Standard Value STD VAL TD 500D User s Manual 40 On a daily basis prior to sample analysis use the CheckPOINT to verify TD 500D Oil in Water Meter calibration If the CheckPOINT value has changed by greater than 10 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 41 12 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 Isopropyl alcohol and detergents and liquids are not provided in the Extraction Kit The following list of items are included in the Ext
24. mend using the minicells with channel B for the widest possible linear range 3 4 Sensitivity The instrument s sensitivity is measured by the FS STD value on the diagnostic screen For proper operation the FS STD should be greater than 0 100 The sensitivity should be checked when initially calibrating the TD 500D 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 0 100 Ifthe FS STD is less than 0 100 or if the calibration screen says Standard lt Blank Recalibrate then follow the steps below A Make sure you are using clean solvent and clean cuvettes B Ifthe TD 500D is set to channel B then TD 500D User s Manual 16 switch to channel A and or C Use larger cuvette and or D Use higher concentration of oil in solvent for calibrating the TD 500D 3 5 Temperature Considerations Perform all calibrations and sample analysis at ambient temperature 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 s
25. monitors 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 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 The TD 500D is normally used with a solvent extraction method such as the Oil in Water TD 500D User s Manual 4 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 and is not designed in any way to be used in an explosion proof designated area 1 2 Getting Started 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 The TD 500D Oil in Water Meter e 4 AAA Batteries e User s Manual e Recommended Accessories as ordered o Carrying Case o Check
26. od 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 TD 500D User s Manual 11 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 NOTE Make sure that you use the same size cuvette for blank calibration solution and sample analysis For Example if you use the minicell cuvettes for blank and calibration solution then use minicell cuvettes for sample analysis also Using different size cuvettes for calibration and sample analysis will result in incorrect readings 2 7 Calibration Standard Value 2 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 ch
27. pecific facility Use safety glasses with side shields or splash goggles while handling acids and solvents Use Nitrile Exam Gloves to protect your hands Consult your company s safety guidelines for detailed safety instructions TD 500D User s Manual 17 4 Troubleshooting Following messages can appear on the TD 500D display screen Message 1 Low Battery Cure 1 Replace the batteries with 4 new AAA batteries Message 2 Circuit Failure Cure 2 Contact Turner Designs Hydrocarbon Instruments Inc according to directions in section 5 2 page 19 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 TD 500D User s Manual 18 5 Warranty 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 T
28. ppm oil concentration in a water sample will give a 1000 ppm oil concentration in the solvent extract This 10X concentration factor is affected during calibration 1 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 Calibration Standard Preparation Part 1 Prepare a 10 000 ppm Stock Standard 1 Pipette 1 ml 1000 ul of oil into a 100 ml volumetric flask that is approximately half full of extraction solvent TD 500D User s Manual 33 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 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 Calibrate the TD 5
29. 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 TD 500D User s Manual 27 12 If the TD 500D was calibrated using a look 13 up table use the look 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 3 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 concentrated Follow the steps below to overcome this issue 1 Dilute the solvent extract 5X by combining 1ml of solvent extract with 4 ml of clean solvent and mix the sample Measure the diluted sample Step 7 through 11 on page 27 Record the concentration of the diluted sample extract using the correlation chart Step 11 on page 27 Multiply the result from Step 11 on page 27 by five 5 to calculate the true oil and grease result in the produced water sample TD 500D User s Manual 28 9 Analysis Procedure for Heavier than Water Extraction Solvents See page 33 for Calibration Procedure This procedure is for use with heavier than water extraction solvents such as Vertrel MCA Freon Ashikleen AK 225 Chloroform Carbon Tetrac
30. raction Kits Extraction Starter Kit for Lighter than Water Solvents P N 100590 Description Quantity 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 100374 Pipette 100 TD 500D User s Manual 42 Extraction Starter Kit for Heavier Than Water Solvents P N 100629 Description 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 3ml 1 pack 100 100651 Leur 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 20ml 2 100621 with Teflon Lined Caps Plastic Disposable Pack of 100 100374 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 The followin
31. s the oil and grease concentration is too concentrated Following steps should be performed to dilute the sample extract 1 Dilute the solvent extract 5X by combining 1ml of solvent extract with 4 ml of clean extraction solvent and mix the sample Measure the diluted sample using the TD 500D Oil in Water Meter Step 5 through 9 on page 30 TD 500D User s Manual 31 3 Record the concentration of the diluted sample extract using the correlation chart Step 9 on page 30 4 Multiply the result from Step 9 on page 30 by five 5 to calculate the true oil and grease result in the produced water sample TD 500D User s Manual 32 10 Calibration Procedure for the TD 500D For all extraction solvents 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 solution 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 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 10X greater than the oil concentration of the water sample For example a 100
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