Geotech Interface Probe With ORS-Style Frame Installation and
Contents
1. 4 6 oz 130 grams 1 inch 25 mm 6 5 inches 16 5 cm 100 psi 6 9 bar 10G 780S 0312 8 mm Large Diameter Chemical Interface Probe Material Weight Diameter Length Probe waterproof to Maximum probe shock Conductivity sense range Min detectable hydrocarbon thickness Tape Material Length Weight Accuracy 100 30m Pyrex stainless steel epoxy PTFE 4 6 oz 130 grams 1 inch 25 mm 6 5 inches 165 mm 100 psi 6 9 bar 10G gt 78uS 0312 8 mm Kynar coated Stainless Steel 7 7 lbs 3 5 kg w case 15 2 lbs 6 9 kg 100 of a foot 100 3 mm 30 m Per Federal Specification GGG T 106E 15 Reel Frame Size 100 30m w Case Unit Operating temperature range Storage temperature range Humidity Battery Self shut off time Output tone hydrocarbons Output modulation tone water 13 L x 12 W x 3 25 High 33 cm L x 30 5 cm W x 8 3 cm High 20 L x 14 W x 8 High 50 8 cm L x 35 6 cm W x 20 3 cm High 32 F 0 C to 140 F 60 C 40 40 C to 170 F 75 C 5 95 non condensing 9 VDC Six Duracell Type MN1500 size AA 4 minutes 500 Hz typ 3 5 Hz typ Section 7 System Schematic 1 29 2 cm 17 Section 8 Replacement Parts List Small Diameter Interface Probe Parts Description METER INTERFACE SM ORS IP 100 WITH CASE METER INTERFACE SM ORS IP 30M WITH CASE METER INTERFACE SM ORS IP 100 NO2. water or non conductive hydrocarbon a small Intrinsically Safe electrical current is passed between the conductivity sensor and the probe body Current flow will occur only in conductive fluids such as water The Interface Probe is capable of measuring oil slicks less than 1 16 of an inch 1 6 mm in thickness Large Diameter Chemical Interface Probe The Large Diameter Chemical Interface Probe Figure 1 5 is a 1 25 4 mm diameter cylinder which can be used in wells as small as 1 125 28 575 mm in diameter It is constructed of glass stainless steel epoxy and PTFE to resist chlorinated compounds and other corrosive substances The probe contains two different sensor units one for detecting the liquid air interface and one for distinguishing between water and hydrocarbon Figure 1 5 Large Diameter Chemical Interface Probe The liquid sensor is an optical prism located on the end of the probe This sensor detects liquid by reacting to the differences in the indices of refraction of air and liquids An infrared light source is internally reflected to an infrared detector by a prism on the face of the sensor When the prism becomes immersed in liquid the light beam is refracted away from the detector To determine if the liquid is conductive water or non conductive hydrocarbon a small Intrinsically Safe electrical current is passed between the conductivity sensor and the probe body Current flow will occur only in conductive
3. information Notes provide additional or supplementary information about an activity or concept NOTE Section 1 System Description Function and Theory The Geotech Interface Probe with ORS Style Frame Interface Probe is a hand held battery powered device used for measuring depth to water or oil in tanks or wells The Interface Probe can be used in numerous applications including measuring oil and water levels in monitoring wells detecting tank leakage and obtaining accurate measurements of water levels in cascading wells Interface Probe assemblies come with either 100 of Engineering tape or 30 meters of Metric tape Part numbers for all models including tape replacements and accessories can be found listed in Section 8 The Interface Probe assembly consists of a hydrocarbon water sensing probe a measuring tape probe cable and a housing into which the tape and probe can be withdrawn when not in use Other Interface Probe features are Rugged durable lightweight construction Dependable highly accurate Trigger style brake lever Easy to use for controller programming Grounding clip provided for anti static safety Automatic sleep function power conservation mode Reliability Made in USA Figure 1 1 shows an example of the Small Diameter Interface Probe Figure 1 2 shows an example of the Large Diameter Interface Probe The housing and electrical on the Large Diameter IP are the same as that of the Small Diameter IP wi
4. issued upon receipt of your request to return equipment which should include reasons for the return Your return shipment to us must have this RMA clearly marked on the outside of the package Proof of date of purchase is required for processing of all warranty requests This policy applies to both equipment sales and repair orders FOR A RETURN MATERIAL AUTHORIZATION PLEASE CALL OUR SERVICE DEPARTMENT AT 1 800 833 7958 Model Number Serial Number Date of Purchase Equipment Decontamination Prior to return all equipment must be thoroughly cleaned and decontaminated Please make note on RMA form the use of equipment contaminants equipment was exposed to and decontamination solutions methods used Geotech reserves the right to refuse any equipment not properly decontaminated Geotech may also choose to decontaminate the equipment for a fee which will be applied to the repair order invoice 29 Geotech Environmental Equipment Inc 2650 East 40th Avenue Denver Colorado 80205 303 320 4764 e 800 833 7958 e FAX 303 322 7242 email sales geotechenv com website www geotechenv com
5. prevent the following Do not allow the probe to impact a hard surface A fractured lens prism or broken sensing post will require replacement of the probe or prism Never allow the tape to hang across a sharp edge A cut on any part of the tape assembly will promote corrosion incorrect readings and require that the tape assembly be replaced Always use a tape guide on well heads or other sharp surfaces Prevent leak points to the electrical housing If the LED lights are broken or pushed into the unit or the test switch boot is torn these can become areas for water to enter the unit and damage the circuitry Protect the surface of the housing by keeping the Interface Probe within its case Never place other equipment on top of the Interface Probe 12 Section 5 System Troubleshooting If an audible visual alarm cannot be obtained check the following Ensure the crank handle is upright on the electrical housing Verify that the batteries are good or that there is not a Low Battery condition Verify that debris is not blocking the probe lens or conductivity sensor Inspect the tape for cuts especially along the sides of the tape The probe and tape assembly are part of a sealed unit and are not easily repaired in the field The probe body and tape assembly can be replaced but only within the proper environment by a qualified technician Before considering repairs contact customer service at Geotech Any major malfunction
6. should be referred to the Customer Service Department Geotech Environmental Equipment Inc at 800 833 7958 or 303 320 4764 Replacing the prism assembly on a Large Diameter Interface Probe To remove the prism use an adjustable wrench and carefully unthread the prism assembly from the probe bottom The prism assembly is made up of three parts as shown in Figure 5 1 To prevent water from entering the prism cavity carefully dry the probe before removing the old prism Throughout the prism removal and replacement procedure hold the probe with the prism pointed downward PRISM mE H VITON PLUG X O RING Figure 5 1 Large Diameter Prism Assembly 13 Thread the new prism assembly into place by hand finger tight Using the adjustable wrench firmly seat the prism and o ring to the head Be careful not to over tighten or the prism and or probe head can crack Always avoid scratching the prism surface with any tools or abrasives Replacement prism assembly part numbers can be found in Section 8 Replacing the Prism on a Large Diameter Chemical Interface Probe To remove the chemical probe prism use an adjustable wrench and carefully unthread the SS prism nut from the probe bottom The prism assembly is made up of four parts as shown in Figure 5 2 Remove the prism and o ring Place the o ring onto the new prism 4 To prevent water from entering the prism cavity carefully dry the probe before removing the ol
7. similar chemicals A summary of the resistance of the sensing head to water organic chemicals is given below WATER The probe is not attacked chemically by water INORGANIC CHEMICALS The probe is unaffected by most inorganic reagents Aqueous solutions do not generally damage the prism although it may be temporarily softened by absorbed water The prism is attacked by concentrated oxidizing mineral acids nitric sulfuric and hydrochloric at room temperature but is not affected by more dilute acids Resistance to alkalis is good ORGANIC CHEMICALS In general aliphatic hydrocarbons alcohols benzene petroleum spirits aliphatic organic acids oils and fats do not attack the prism Slight absorption may occur but does not usually cause degradation The prism is attacked by highly polar organic solvents such as dimethysulphoxide aromatic amines nitrobenzene and certain chlorinated hydrocarbons such as dichloromethane and chloroform 22 Chemical Acetaldehyde Acetic Acid glacial Acetic Acid 1096 Acetone Aluminum Salts Ammonia 880 Ammonium hydroxide 1096 Ammonium chloride 10 Amyl Acetate Aniline Arcton propellants Aviation hydraulic fluid Aviation spirit Barium Salts Benzaldehyde Benzene Benzoic Acid Benzen Sulfonic Acid Bleach Boric Acid Brake Fluid Brine Butane Butanol Butyl Acetate Calcium nitrate Calcium hypochlorite Carbon disulphide Carbon tetrachloride Chlorine Chlorobenzene Chlorofo
8. ARM AUDIO MINI BEEP TONE MANUAL IP W ORS STYLE FRAME 2068015 2068038 00 PPE021005 16050017 Appendix A Tripod Mount and Tape Guide Interface Probe Tripod Mount The Interface Probe is equipped with a 1 4 20 threaded hole located on the bottom of the frame assembly for mounting on a standard photo or video tripod This feature allows the probe to be centered in the well and prevents the probe or measuring tape from sustaining damage during deployment or recovery Example of Interface Probe Assembly mounted to tripod 20 Tape Guide A Tape Guide shown below is also available see Section 8 which can easily be placed onto the rim of a well head The tape guide allows the Interface Probe tape to smoothly deploy into the well without having the tape catch or lay upon any sharps edges Tape Guide optional For attachment to well casing 21 Appendix B Chemicals and Decontamination CHEMICAL RESISTANCE CHART The compatibility of the Interface Probe with various chemicals is listed in the table on the following pages For chemicals not listed please consult the factory Chemical resistance is rated as follows A Good at 20 degrees C B Fair Slight attack and absorption Inspect and rinse after use C Poor Use the Geotech Large Diameter Chemical Interface Probe Indicates that the probe material has not yet been tested specifically with that chemical but the results can be predicted from tests with
9. CASE METER INTERFACE SM ORS IP 30M NO CASE ASSY TAPE ORS IP SM DIA 100 ASSY TAPE SMALL ORS IP 30M ASSY PROBE ORS IP SM DIAM Large Diameter Interface Probe Parts Description INTERFACE PROBE 100 ENGRG WITH CASE INTERFACE PROBE 30M METRIC WITH CASE INTERFACE PROBE ASSY 100 INTERFACE PROBE ASSY 30 METER ASSY TAPE ORS IP LG DIA 100 ASSY TAPE ORS IP LG DIA 30M PROBE ELEX REM PRISM ASSY PRISM ASSY REMOVABLE Large Diameter Chemical Interface Probe Parts Description INTERFACE PROBE 100 CHEMICAL WITH CASE INTERFACE PROBE ASSY 100 CHEM ASSY TAPE ORS IP LG DIA 100 CHEMICAL ASSY TAPE ORS IP LG DIA 30M CHEMICAL PROBE ELEX PSM ASSY CHEM PRISM PYREX CHEM IP GUARD POST SS 2 56 Parts List 86050001 86050004 86050007 86050010 56050006 56050009 56050002 Parts List 1068013 1068017 2068009 2068013 3068002 3068012 2068004 2060010 Parts List 1068016 2068049 56050017 56050018 2068022 ORS643007 ORS732001 Additional Accessories Parts Description CASE CARRYING 100 IP WITH FOAM GUIDE TAPE PVC ASSY WIPER RIGHT COATED ASSY WIPER LEFT COATED HANDLE CRANK ASSEMBLY ASSY GROUNDING CLIP IP PROBE HOUSING LATCH ASSY BATTERY 1 5V SIZE AA EACH BATTERY CLIP HOLDER 6 AA Parts List PPM132002 22050601 2060001 2060002 2060004 2060008 2060012 PPE041006 PPE042006 the following parts require electrical experience soldering skills to replace FACEPLATE REEL PCB ASSY W O FM ASSY BATTERY SNAP POTTED AL
10. approval Alternate battery types will also affect the operation of the Interface Probe e When in operation the unit must be grounded with the grounding clip provided Replace damaged or torn ground clip assemblies e Substitution of components and or improper use will impair intrinsic safety and void approval Section 2 System Installation Installation of the Interface Probe is easy using the following steps Attach the grounding clip to a confirmed ground before lowering the probe Pull the Interface Probe protector tube out from the housing Raise the crank handle up to activate the unit Depress the test button to test A yellow light and tone will signify there is power and tone Using the crank handle in conjunction with the thumb driven brake latch the probe can be released and lowered into the well No further preparation is required E O N e When suitable the Interface Probe assembly can be easily mounted to a tripod See Appendix A for more information on using a tripod and for installing tape protection to the well head Section 3 System Operation Taking a Measurement Before activating the probe attach the grounding clip to a suitable earth ground To turn the unit on lift the crank handle away from the reel housing see Figure 1 2 This activates a power switch inside the reel s electrical housing To verify that the unit is operational press the test button on the faceplate If the power is ON an aud
11. d fn 9 L fw geotecn aS Interface Probe With ORS Style Frame Installation and Operation Manual Rev 09 18 14 Part 16050017 Section 1 Section 2 Section 3 Section 4 Section 5 Section 6 Table of Contents System Description tete ett i i Es 3 System installation e e kekeke r rrer rrtnrrrnrrrrrrrrrrnrrererrrrr eent 9 System Operation sbecian rie eee ee severas 10 System Maintenance ses gc aog roa ccc eii eee ac nana Er ear e in 12 System Troubleshooting see e e ee eee eee eeeeee eee eeeeea eee enees 13 System Specifications sss 15 Section 7 System Schematic see eee e K e 17 Section 8 Replacement Parts List sss 18 Appendix A Tripod Mount and Tape Guide sss eee ee e 20 Appendix B Chemicals and Decontamination esee 22 Warranty and Hepalt esc rette eR rh RR RE acy t A a RARE 28 DOCUMENTATION CONVENTIONS This document uses the following conventions to present information An exclamation point icon indicates a WARNING of a situation or condition that could lead to personal injury or death You should not proceed until you read and thoroughly understand the WARNING message WARNING A raised hand icon indicates CAUTION information that relates to a situation or condition that could lead to equipment malfunction or damage You should not proceed until you read and thoroughly understand the CAUTION message CAUTION 7 A note icon indicates NOTE
12. d prism Throughout the prism removal and replacement procedure hold the probe with the prism pointed downward PRISM ASSEMBLY O RING O RING PRISM NUT GUARD POST 2X Figure 5 2 Large Diameter Chemical Interface Probe Prism Assembly Insert the prism into the nut and thread the assembly into place by hand finger tight Using the adjustable wrench firmly seat the prism nut and o ring to the head Be careful not to over tighten or the prism and or probe head can crack The replacement prism and guard post part numbers can be found Section 8 Replacement Alarm Upon pressing the TEST button if the alarm light illuminates but the alarm sound is not audible the alarm must be replaced Please contact your Geotech Sales Representative at 1 800 833 7958 to inquire about repair options replacement alarms and necessary tools 14 Section 6 System Specifications Small Diameter Interface Probe Material Weight Diameter Length Probe waterproof to Maximum probe shock Conductivity sense range Min detectable hydrocarbon thickness Large Diameter Interface Probe Material Weight Diameter Length Probe waterproof to Maximum probe shock Conductivity sense range Min detectable hydrocarbon thickness 316 stainless steel PTFE Viton 4 1 02 115 grams 625 inches 16 mm 6 55 inches 16 6 cm 100 psi 6 9 bar 10G gt 78uS 0312 8 mm 304 stainless steel epoxy Radel
13. e differences in the indices of refraction of air and liquids An infrared light source is internally reflected to an infrared detector by a prism built into the face of the sensor When the head of the probe becomes immersed in liquid the light beam is refracted from the detector To determine if the liquid is conductive water or non conductive hydrocarbon a small Intrinsically Safe electrical current is passed between the conductivity sensor and the probe body Current flow will occur only in conductive fluids such as water The Interface Probe is capable of measuring oil slicks less than 1 16 of an inch 1 6 mm in thickness Large Diameter Interface Probe The Large Diameter Probe Figure 1 4 is a 1 25 4 mm diameter cylinder which can be used in wells as small as 1 125 28 575 mm in diameter The probe contains two different sensor units one for detecting the liquid air interface and one for distinguishing between water and hydrocarbon or ror rg P i tt M Figure 1 4 Large Diameter Interface Probe The liquid sensor is an optical prism located on the end of the probe This sensor detects liquid by reacting to the differences in the indices of refraction of air and liquids An infrared light source is internally reflected to an infrared detector by a prism on the face of the sensor When the prism becomes immersed in liquid the light beam is refracted away from the detector To determine if the liquid is conductive
14. ective Against PCB Contamination since penetone may also remove paint it is a good idea to spot test before use Contaminated pumps Oils Cyanides Low level radioactivity Biological agents should not be used on rubber products since it will break down rubber Certain types of lab or sampling equipment use of hexane is discouraged due to its flammability and toxicity General purpose cleaning General purpose cleaning 25 Recommended Supplies for Decontamination of Personnel Clothing and Equipment The list below contains recommendations for supplies that should be on hand for the decontamination of personnel clothing and equipment Depending on the site activities not all of these items may be needed Alternatively some additional items not listed here may be required Drop cloths of plastic or other suitable material such as visqueen for heavily contaminated equipment Disposal collection containers such as drums or suitably lined trash cans for disposable clothing and heavily contaminated personal protective clothing or equipment to be discarded Lined box with adsorbent for wiping or rinsing off gross contaminants and liquid contaminants Wash tubs of sufficient size to enable workers to place booted foot in and wash off contaminants without a drain or with a drain connected to a collection tank or appropriate treatment system Rinse tubs of sufficient size to enable workers to place booted foot in and was
15. ed on the sheets or in the basins They could be placed on a slight angle so that the spent decontamination solutions drain into a collection basin or drum 27 DOCUMENT REVISIONS EDCF DESCRIPTION REV DATE Previous Release 6 5 2012 Project Updated manual to include replacement Alarm 9 18 2014 1410 troubleshooting and part number SP 28 The Warranty For a period of one 1 year from date of first sale product is warranted to be free from defects in materials and workmanship Geotech agrees to repair or replace at Geotech s option the portion proving defective or at our option to refund the purchase price thereof Geotech will have no warranty obligation if the product is subjected to abnormal operating conditions accident abuse misuse unauthorized modification alteration repair or replacement of wear parts User assumes all other risk if any including the risk of injury loss or damage direct or consequential arising out of the use misuse or inability to use this product User agrees to use maintain and install product in accordance with recommendations and instructions User is responsible for transportation charges connected to the repair or replacement of product under this warranty Equipment Return Policy A Return Material Authorization number RMA is required prior to return of any equipment to our facilities please call our 800 number for appropriate location An RMA will be
16. fluids such as water The Interface Probe is capable of measuring oil slicks less than 1 16 of an inch 1 6 mm in thickness Measuring Tape The specially coated measuring tape connects the probe with the housing assembly and provides an accurate means of measuring the distance from the well head or tank port to the air water air oil or oil water interface The tape contains all the wires running between the probe and the circuitry in the housing assembly Engineering tape assemblies are in decimal feet and Metric tape assemblies are in meters down to millimeters Tape assemblies and probes come as a set If an alternate probe is required such as switching from a small diameter to a large diameter then the tape assembly will need to change also Housing Assembly The components of the weatherproof NEMA 3 housing assembly also known as an ORS Style Frame are shown in Figure 1 1 The housing includes a casing and reel to protect and deploy the measuring tape and probe The housing also has a Low Battery indicator a visual audible alarm and a test button and light to check the alarm A ground assembly comes attached to the housing Intrinsic Safety amp Approval The intrinsic safety and approval of the Interface Probe assembly is subject to the following requirements e Batteries must be changed only in a non hazardous location e Batteries must be Duracell Type MN1500 size AA Substitution will impair intrinsic safety and void
17. h off contaminants without a drain or with a drain connected to a collection tank or appropriate treatment system Wash solutions selected to wash off and reduce the hazards associated with the contaminated wash and rinse solutions Rinse solution usually water to remove contaminants and contaminated wash solutions Long handled soft bristled brushes to help wash and rinse off contaminants Lockers and cabinets for storage of decontaminated clothing and equipment Storage containers for contaminated wash and rinse solutions Plastic sheeting sealed pads with drains or other appropriate method for containing and collecting contaminated wash and rinse water spilled during decontamination Shower facilities for full body wash or at a minimum personal wash sinks with drains connected to a collection tank or appropriate treatment system Soap or wash solution wash cloths and towels Clean clothing and personal item storage lockers and or closets 26 Decontamination Solutions to Avoid Some decontamination solutions should be avoided because of their toxicity flammability or harmful effects to the environment Halogenated hydrocarbons such as carbon tetrachloride should not be used because of their toxicity possible incompatibility and some because of their flammability Organic decontamination solutions should not be used on personal protective equipment PPE because they may degrade the rubber or other materials comprisi
18. he alarm changes from oscillating to continuous The thickness of the hydrocarbon layer is determined by subtracting the first reading from the second reading The most accurate results are obtained by moving the probe as slowly as possible It is important that the probe be removed from the fluid slowly If not drops of fluid may remain on the probe tip giving a false indication of liquid after it has been removed After taking a measurement snap the protector tube shut so the wipers rest against the tape Release the brake and slowly reel in the tape until the probe is just below the wipers Do not allow the probe to bottom out against the wipers as this will apply stress to the tape and possibly damage connections at the probe 10 Next open the protector tube and gently reel the probe 2 3 of the way into the tube Forcibly reeling the probe all the way into the tube may stress or break the measuring tape Now turn the entire Interface Probe assembly upside down so that the probe will fall the rest of the way into the protector tube After ensuring that the probe is entirely within the protector tube close the protector tube The Interface Probe is equipped with an automatic shutoff circuit If the probe has not sensed liquid within 4 minutes from the time power is applied the unit will automatically switch to a low power mode This prevents battery drain in the event the power is left on accidentally To restore power place the handle
19. ible tone will sound and the yellow alarm light will activate A low battery condition will cause the red Low Battery indicator to be illuminated Before replacing the batteries read the section on Intrinsic Safety and Approval within Section 1 To release the probe pull the protector tube outward from the reel casing To lower the probe tilt the front of the reel housing forward and press the brake release The brake release is located just forward of the handle The tape will reel out as long as the brake release is pressed Lower the probe into the well taking care not to allow the probe or tape to rub against the well casing or any other sharp edge Refer to Appendix A for an alternative means of probe deployment and tape protection When the probe contacts liquid the visual audible alarm on the reel will activate A continuous alarm indicates hydrocarbon An oscillating alarm indicates water To determine the exact thickness of a hydrocarbon layer the probe should be slowly lowered to the air hydrocarbon interface until the alarm is activated With the probe at the exact point where the alarm comes on read the numbers on the tape to determine the distance from the top of the well head to the air hydrocarbon interface Next lower the probe through the hydrocarbon layer and into the water An oscillating alarm will be obtained The probe should then be raised slowly to the hydrocarbon water interface until the point is reached where t
20. in the OFF position and then back to the ON position Changing the Batteries Should you receive a low battery condition when powering on the unit replace the batteries as follows 1 Using a Phillips screwdriver remove the 8 screws to the electrical cover 2 Carefully remove the cover and lay it to one side do not tug or pull on the wiring Figure 3 1 shows the location of the battery pack within the electrical housing 3 Pull out the battery pack and remove the six AA batteries Replace the batteries with Duracell Type MN1500 only 4 Reinstall the battery pack and re attach the cover Test the unit for proper operation Battery Pack with 6 Duracell AA batteries Figure 3 1 Location of Interface Probe Battery Pack 11 Section 4 System Maintenance The Interface Probe is designed to be virtually maintenance free The only maintenance required is cleaning off the tape reel and probe and periodic replacement of the batteries After taking measurements wash the probe in phosphate free detergent rinse in distilled water then repeat the washing process once more Clean all accessible parts of the reel assembly Under some circumstances a more aggressive cleaner may be required to prevent cross contamination of wells Keep abrasives from the probe lens Before replacing the batteries read the section on Intrinsic Safety and Approval within Section 1 To maintain the life of your Interface Probe make every effort to
21. inc salts Results A OC CO EW EEE EEE EO E EKO EKO O E E OOE EC S ODrrrrrrroayY gt 24 Some common decontamination solutions are listed below along with the contaminants they are effective against Solution Water Dilute Acids Dilute Bases Organic solvents Effective Against Short chain hydrocarbons inorganic compounds salts some organic acids other polar compounds Basic caustic or alkaline compounds amines hydrazines Acidic compounds phenols thiols some nitro and sulfonic compounds Nonpolar compounds such as some organic compounds The use of organic solvents is not recommended because e Organic solvents can permeate and or degrade the protective clothing and e They are generally toxic and may result in unnecessary employee exposure to hazardous chemicals When in doubt use a dish washing liquid detergent As a decontamination solution it is readily available is the safest of all the above and is usually strong enough if used generously The use of steam can also be effective for decontamination A water lazer pressurized water is exceptionally valuable The following substances are noted for their particular efficiency in removing certain contaminants or for decontaminating certain types of equipment Solution Penetone Phosphate free detergent Ivory liquid Diluted HTH Radiac Isopropanol Hexane Zep Phosphate free detergent Eff
22. ng the PPE Mercurials are sometimes used for sterilization They should be avoided because of their toxicity Chemical leaching polymerization and halogen stripping should be avoided because of possible complications during decontamination Sand blasting a method of physical removal should be avoided because the sand used on the contaminated object usually needs to be disposed of as hazardous waste a very costly proposition Sand blasting will also expose personnel to silica a carcinogen Freon is known to be particularly effective for the cleansing of PCB s but its effect on the ozone layer is extremely harmful Its use is discouraged Strong acids or bases should not be used when cleaning metals gaskets tools or other equipment because of the possibility of corrosion Disposal of Decontamination Solutions and Waste Water All solutions and water used for decontamination must be collected If lab analysis indicates that the water and or solutions exceed allowable contamination levels they must be treated as hazardous waste Alternatively the solutions and water may be treated on site to lower the contamination levels and render them non hazardous Containers such as 55 gallon drums should be available for storage of wastes Spent decontamination solutions can be collected by using heavy duty plastic sheets visqueen sheets kiddie pools or if needed a larger containment basin The decontamination of equipment must be perform
23. rm Chlorosulfonic acid Chromic Acid Citric Acid Cooking oil Copper sulfate Results T ECO EKO EE WD EE b Ob DU OD EEE O E EO 23 Chemical Detergent Solutions Dibutyl phthalate Dichlorobenze Dichloroethane Dichloroethelyne Diesel Oil Diethylamine Dimethyl Formamide Dioctyl phthalate Dioxane Edible fats amp oils Ethanol Ethyl Acetate Ethyl Alcohol Ethylene glycol Ferric chloride Formaldehyde Formic Acid Gasoline premium Glycerol Heptane Hexane Hydrochloric acid 10 Hydrochloric acid conc Hydrogen Peroxide Hydrogen sulfide lodine Isopropanol Iso octane Kerosene Lactic Acid Lead Acetate Linseed Oil Magnesium Sulfate Mercuric chloride Mercurous chloride Mercury J o o c o Prrrrrwmwwmrrrrrrrrrrrrrorrwurorrwoor Chemical Nickel Salts Nitric Acid 10 Nitric Acid conc Nitrobenzene Oils Vegetable Oleic acid Oleum Oxalic acid Perchloroethylene Petrol Petroleum Ether Phenols Potassium hydroxide 1096 Potassium hydroxide 5096 Propane Pyridine Silicon fluids Silver nitrate Soap solution Sodium chloride Sodium hydroxide 1096 Sodium hydroxide 5096 Sodium hypochloride Sulfur dioxide Sulfuric Acid 10 Sulfuric acid conc Sulfurous acid Tar Tartaric acid Tetrahydrofuran Toluene Transformer oil Trichloroethylene Turpentine Vaseline Varnish Water Wax White spirit Wines and spirits Xylene Z
24. th the exception of the probe and tape assembly explained later in this section Some Interface Probe options are s Field replaceable sensing prism large diameter probes only e Chemically resistant probe available on large diameter models e Optional small diameter probe is only 15 9 mm in diameter X P Handle pa Lever n Reel and Electronic Housing Probe va o wu eo o o 4 Casing ON OFF Switch Crank Handle Conductivity Sensor Prism Figure 1 2 Large Diameter Interface Probe used for Chemical applications also System Components Probes Three probes are available for use with the Interface Probe assembly The tape assembly is unique in that its length is cut to match the type of probe used and will have a unique potted strain relief to match the probe body as shown in the following figures Small Diameter Interface Probe The Small Diameter Interface Probe Figure 1 3 is a 15 875 mm diameter cylinder which can be used in wells as small as 19 mm in diameter The probe contains two different sensor units one for detecting the liquid air interface and one for distinguishing between water and hydrocarbon Figure 1 3 Small Diameter Interface Probe The liquid sensor is an optical PCB containing an emitter and detector that are located within the blue head of the probe This sensor detects liquid by reacting to th
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