Service Manual - BOC e
Contents
1. 14 1 Flow Rate Test a Connect the dial flow regulator to a 100 Bar pressure source and turn the supply on Qu If a variable high pressure source is not available then use a full cylinder charged to 137 Bar Input pressure has a marginal effect on the output flow and some consideration should be given to this when checking the flows Increase in input pressure corresponds to an increase in flow b Connect the Output Tubing Nipple to an appropriate calibrated flowmeter and check the flow at each flow setting position c Regulators should not need to be adjusted for calibration as a matter of routine but should recalibration be required refer to Section 15 14 2 Leak Test Connect the dial flow regulator under test to a full cylinder Set the dial flow regulator to zero flow position Close the cylinder valve and monitor the Cylinder Contents Gauge Leave the regulator for 10 minutes If the Cylinder Contents Gauge reading drops then the regulator has a leak requiring repair Refer section on Troubleshooting a a A Service Manual Dial Flow Regulators Page 19 of 23 702 0042 V3 September 2008 15 0 Flow Calibration Qu Check the condition of the regulator piston before attempting to recalibrate the regulator QA It is not possible to calibrate individual flow settings Adjusting the output pressure using the procedure below will impact the flowrates at all flow settings a Follow the steps given in Section 14 1 Flow Rat2. not shown before offering the Input Probe and Input Filter up to it This will prevent contamination of the Input Filter from oils that might be on the vice b Fit new O ring Seals Leen Rn a A A A A Service Manual Dial Flow Regulators Page 12 of 23 702 0042 V3 September 2008 Dial Flow Regulators 13 4 Cylinder Contents Gauge Removal Early models of the regulator have a QP erence Cylinder Contents Gauge which can be removed using a AF slimline Spanner The procedure below provides for the removal of current swivel type Cylinder Contents Gauges a Remove the Cylinder Connector as outlined in Section 13 1 b Turn the regulator upright press the Cylinder Contents Gauge in and the two Dowels holding the Cylinder Contents Gauge in place will drop out c Remove the Cylinder Contents Gauge d Remove and discard the Cylinder Contents Gauge O ring e Fita new Cylinder Contents Gauge O ring 13 5 Output Connector Removal a To remove the output connector use an 8mm AF Spanner This is not required as part of the service procedure Ident Pt No Description Qty 1 303 0030 Rubber Boot for Cylinder 1 Contents Gauge 2 303 0041 Cylinder Contents Gauge 1 3 212 0093 O ring Cylinder Contents 1 Gauge 4 208 0018 Dowel 1 5dia x 14 2 5 602 0086 Flowmeter Output Tubing 1 Nipple 6 212 0014 O Ring 8 x 1 5 Viton 1 A A a A A A A Service Manual Dial Flow Regulators Page 13 of 23 702 0042
3. 1 Output pressure too high due to 1 Replace piston leak from OPV exhaust ports damaged piston 2 Re calibrate regulator 2 Spring adjusted too high 3 Replace the Output Body 3 OPV seal damaged or not properly Assembly or return to service centre seated for repair 4 Damaged Main J et 4 Replace Regulator Input Body and Regulator Piston 18 0 Service Parts Kits amp Tools Parts are identified by Part Number throughout this manual and in most cases can be purchased individually Service Kits include all parts required to service 10 x regulators in accordance with the instructions given in this manual Part Description 610 0057 Bodok Bonded Seal Pack of 50 610 0058 Bull Nose O Ring Seal Pack of 50 610 056 Service Parts Kit 10 Dial Flow Regulator Pack Service Tool Kit for Regulators and Dial Flow Regulators 610 0055 Includes Krytox Lubricant Bull Nose O Rings Bodok Seals Special End Caps Tools O Ring Applicator Filter Compression Tool Filter Punch 610 0047 Krytox LC025 Oxygen Tolerant Grease 610 0046 Loctite 222 Thread Locking Compound 610 0054 UVA Black Light Source 315nm 400nm a aS Service Manual Dial Flow Regulators Page 22 of 23 702 0042 V3 September 2008 Dial Flow Regulators 19 0 Notes This area is provided to enable you to write the things down that you have discovered that we should have made clear in the manual If you would like to let us know what these things are we will glad
4. V3 September 2008 Dial Flow Regulators 13 6 Main Body Disassembly a Remove the rating label from the regulator waist b Compress the regulator in an engineering vice Special End Caps using the special end caps provided in the Service Tool Kit Ensure the engineering vice is clean Additionally lay a piece of lint free wipe over the top of the vice before offering the regulator up to it This will prevent contamination of the regulator from oils that might be on the vice c Compress but don t over tighten the regulator in the vice d Remove the 4 output body retaining screws Slowly release the vice until the regulator is no longer under compression and can be withdrawn e When re assembling the regulator reverse the above steps Before fully compressing the assembly take care to align the screw holes in the Regulator Output Body with those in the Regulator Input Body Ensure that the Output Body and the Input Body are oriented such that the Cylinder Contents Gauge and the Output Tubing Nipple are 180 out of alignment with each other Lee A A Service Manual Dial Flow Regulators Page 14 of 23 702 0042 V3 September 2008 Dial Flow Regulators 13 7 Piston O Ring Replacement a Remove the two piston o rings b Inspect the quality of the Piston Seat and replace the Piston Sub assembly Piston Seat not available on its own if the Piston Seat is damaged The Piston Seat is a key element
5. a lint free wipe lint free swab and isopropyl alcohol Fit a new Output O ring into the Output Slider Hold the Output Body upright Refit the Detent Springs and Detent Balls Carefully lower and compress the Control Knob and Drive Shaft down onto the Detent Balls Keeping the assembly compressed in your hand turn the Control Knob around to show the zero position Keeping the assembly compressed in your hand turn the Output Body over and refit the Flow Plate Carrier Assembly ensuring that it is oriented correctly Firmly secure the assembly with the M4 Button Head Screw M4 Washer and new Compression O ring Qu It is possible to fit the Carrier Plate Assembly 180 out of phase When replacing the Flow Plate Carrier Assembly ensure that the Control Knob is set at the zero position and the no hole position on the carrier plate refer illustration below is fitted adjacent to the Output O ring i e no flow at zero The no hole position corresponds to zero 702 0042 V3 September 2008 Page 17 of 23 I dent 14 15 15 15 15 16 17 18 19 20 21 22 Dial Flow Regulators Pt No 212 0015 604 0025 604 0027 604 0028 604 0044 212 0017 207 0007 201 0028 214 0003 213 0007 602 0095 212 0041 Description O Ring Output Seal Range A Flowplate Carrier Assembly Range C Flowplate Carrier Assembly Rande D Carrier Plate Assembly Range E Carrier Plate Assembly O Ring Compr
6. in the safety and performance of a medical gas regulator it is essential that it is kept clean and in good condition witness mark but deformation should not be excessive The images below offer a guideline as to what is acceptable and what is not A damaged seat will offer poor pressure regulation If in doubt replace the piston sub assembly D It is normal for the Piston Seat to have a Y c Clean the piston with a lint free wipe a lint free swab and Isopropyl Alcohol d Fit new piston O rings When fitting the smaller silicone o ring use the special tool provided as illustrated Ident Pt No Description Qty 7 2130003 Spring Regulator 58 psi 8 207 0006 Washer M10 SS 9 201 0020 Screw M3 x 8 CSK SS 10 602 0071 Regulator Input Body 11 212 0006 O ring 29 87 x 1 78 Viton 12 604 0045 Regulator Piston amp Seat Sub Assembly 13 212 0009 O ring 4 48 x 1 78 silicone 1 PrePrP BPP Service Manual Dial Flow Regulators Page 15 of 23 702 0042 V3 September 2008 Dial Flow Regulators 13 8 Regulator Input Body Cleaning Piston Port a Clean the inside of the Regulator Input Body using a lint free wipe a lint free swab and isopropyl alcohol Pay particular attention to the high pressure gas inlet port gauge port and piston port areas Check the ports using an appropriate UVA black light source refer Section 8 Contamination of the regulator input port Gauge Port mu from debris and
7. September 2008 Dial Flow Regulators 13 0 Procedures for Servicing 13 1 Cylinder Connector Removal a Disconnect the regulator from the gas supply b Remove the Cylinder Connector by removing the 3 x M4 Dog Point Screws holding it to the Input Body Rotate the Cylinder Connector to allow access to each of the 3 screws that are equally spaced around the Regulator Input Body 13 2 Cylinder Connector Cleaning a Remove the cylinder seal O ring or Bodok seal and discard b Remove the Input Probe Seal and discard c Pass the Filter Punch provided in the Service Tool Kit into the Input Probe as illustrated and tap out the 40 micron filter d Clean the Input Probe using a lint free wipe a lint free swab and isopropyl alcohol Contamination of the Regulator Input Port E from debris and hydrocarbons is a common Special Tool cause of oxygen regulator incidents Ensure that this area is completely free of debris and hydrocarbons before re assembling the regulator o Service Manual Dial Flow Regulators Page 11 of 23 702 0042 V3 September 2008 Dial Flow Regulators 13 3 Fitting a New Filter a Fit a new Input Filter using the special tool provided Compress the filter in place in an engineering vice or press When properly inserted the filter should be below the front edge of the cylinder connector Ensure the engineering vice is clean QP icon lay a piece of lint free wipe over the top of the vice
8. Service Manual Dial Flow Regulators Dial Flow Regulators Copyright No part of this manual may be copied for any reason without the written permission of BPR Medical Ltd This product is manufactured by BPR Medical Ltd on behalf of Carn t Any questions concerning the contents of this manual should be directed to Customer Services Department BPR Medical Ltd 22 Hamilton Way Mansfield NG18 5BU United Kingdom Tel 44 0 1623 628281 Fax 44 0 1623 628289 email info bprmedical com www carnetmedical com a SS SS Service Manual Dial Flow Regulators Page 2 of 23 702 0042 V3 September 2008 Table of Contents 1 0 GENERAL SAFETY WARNING sacararararata aaa arcas 240 DESCRIPTONSOF SYMBOLS dd 3 0 REQUIREMENT FOR FORMAL TRAINING 20 CONVERSION FACTOR Sondas dnd a O APPROVALS a alitas 6 0 DECONTAMINATION CERTIFICATE cistitis LO DAYGEN COMPATIBLE i clad ai it ela ata ht 7 1 General oz Standards 7 3 Adiabatic Compression 7 4 Cleanliness 9 0 PRODUCT DESCRIPTION td 9 0 PRODUGT OPTIONS cara TOO FEOWMETERRANGES aiii ii E EAE Ata bac debe Natio MOS PEEIPLCATLON sera oir bocha tii eo 12 0 INSPECTION AND MAINTENANCE PERIODS ccce 12 1 Periodic Inspection Annual 12 2 Functional Check for Micro Flowmeter Ranges Only 2 Years 12 3 Full Service 4 Years 13 0 PROCEDURES FOR SERVICING asesinas erss 13 1 Cylinder Connector Removal 13 2 Cylinder Connector Cleaning 13 3 Fitting a New Filt
9. The threaded bull nose cylinder connection for Medical Oxygen and Medical Air may be the same ensure that you have the correct cylinder for the application UK only W14 W15 W16 W17 W18 W19 W20 Dial Flow Regulators The holes in the side of the body of the device are for venting gas in the event that the relief valve is activated Do not obstruct these holes or interfere with the relief valve in any way These regulators are designed for use for cylinder pressures up to 20 000 kPa 3000 psi 200 Bar do not attempt to connect Carn t regulators to cylinders having fill pressures in excess of this value Only personnel who have appropriate Carn t Medical Should perform disassembly testing of this equipment undergone the training course assembly and Do not submerge in water or allow any fluid to enter the equipment If you have reason to suspect that fluid or other ingress has occurred remove the device from use and contact the manufacturer Never permit compressed medical gases to enter a regulator suddenly Always open the cylinder valve slowly Do not stand in front of a regulator outlet when opening the cylinder valve Do not use or store oxygen equipment near excessive heat gt 50 C or 125 F or an open flame Use only lubricants recommended by the manufacturer when servicing medical gas regulators The use of lubricants other than those recommended by the manufacturer may result in fire
10. and rating label inserts Ore you have old style printed rating labels eN call Customer Services who will arrange to send you a Set of the new insert type labels b Create a Service Due Date insert using a Dymo 6mm Tape and insert it behind the membrane panel Use the format Month Year e g FEB ns dh T 08 and make the date 4 years from the date the regulator is serviced Take care when fitting the membrane overlay not to contaminate the adhesive with your fingers as this reduces the effectiveness of the adhesive o Service Manual Dial Flow Regulators Page 21 of 23 702 0042 V3 September 2008 Dial Flow Regulators 17 0 Troubleshooting Guide Symptom Possible Cause Remedy Gauge bent or damaged Probable impact e g cylinder Replace the gauge dropped Gauge doesn t zero stuck at full or 1 Damaged gauge 1 Replace gauge gives false readings 2 Cylinder contents gauge o ring 2 Remove the gauge replace the o misaligned partially covers feed hole ring replace gauge early models Gas leaks at cylinder connection 1 Cylinder valve face scored 1 Replace cylinder 2 Inlet seal O Ring or Bodok seal 2 Replace inlet seal damaged or missing Gas leak at union of cylinder 1 O rings damaged 1 Replace o ring connection and regulator input body 2 Input probe broken 2 Replace input probe Gas leak at cylinder contents gauge O Ring seal damaged Replace o ring port Over Pressure Valve activates gas
11. e Test Record the flow readings b Turn off the cylinder and remove the dial flow regulator c Remove the Cylinder Connection according to Section 13 1 d Remove the 3 x M3 Locking Screws from the Regulator Input Body using a 2mm AF Allen Key e Adjust in turn each of the 3 x Adjusting Screws by Y turn only Viewed from the top of the screw clockwise increases the flow rate QA All 3 screws must be adjusted in turn and by the same amount Work in turn steps only f Reconnect the Cylinder Connector Test according to Section 14 1 Flow Rate Test g Repeat steps b through f until the dial flow falls within specification h Remove the Cylinder Connection according to Section 13 1 i Smear a thin film of Loctite 222 Thread Locking Compound onto each of the 3 x M3 Locking Screws and screw them into the Regulator Input Body until they just touch the Adjusting Screw Do not overtighten as this will move the Qu Adjusting Screws and change the flow calibration j Reconnect the Cylinder Connector Test according to Section 14 1 Flow Rate Test Dial Flow Regulators Adjusting Screws x 3 Locking Screws X 3 Service Manual Dial Flow Regulators Page 20 of 23 702 0042 V3 September 2008 Dial Flow Regulators 16 0 Fitting the Rating Label a A new rating label membrane is provided as part r Rating Service Barcode of a dial flow service kit Use the old barcode informatio bie Date Serial
12. e across the input pressure range 200 to 10 Bar ii varying outlet resistance Less than 1 of reading up to 5kPa 50cmH20 back pressure iii varying temperature Typically 0 2 of reading per degree Celsius A a yyy Service Manual Dial Flow Regulators Page 9 of 23 702 0042 V3 September 2008 Dial Flow Regulators 12 0 Inspection and Maintenance Periods 12 1 Periodic Inspection Annual Regulators should be visually inspected on an annual basis to ensure that there is no obvious damage check that the cylinder seal is in place and in good condition Check that the cylinder contents gauge is reading zero when not connected to a cylinder and offers an appropriate reading when connected to a cylinder i e green area of the gauge for a full cylinder Listen for obvious leaks when the regulator is connected to a full cylinder Check the accuracy of the flow rate at the highest flow setting refer Section 14 for guidance make sure that device does not need servicing Service Due date 12 2 Functional Check for Micro Flowmeter Ranges Only 2 Years Micro flowmeters i e Range A and Range E devices should be checked for function every 2 years in accordance with Section 14 12 3 Full Service 4 Years Strip down service and full functional check Requires suitably trained personnel appropriate workshop conditions and specialist equipment A A A A A A SS Service Manual Dial Flow Regulators Page 10 of 23 702 0042 V3
13. er 13 4 Cylinder Contents Gauge Removal 13 5 Output Connector Removal 13 6 Main Body Disassembly 13 7 Piston O Ring Replacement 13 8 Regulator Input Body Cleaning 13 9 Flowmeter Disassembly Re assembly 13 10 Regulator Reassembly 14 0 PROCEDURES FOR FUNCTIONAL CHECK cccee cece teense enna eee 14 1 Flow Rate Test 14 2 Leak Test 15 0 FLOW CARTE RAT IN ai TEO FTE UNG REE RATING CABE le ctr dad aay agate g hahaa eee 1730 TROUBLESHOOTING GUIDE dante detal de 1620 SERVICE PARTS KITS TOOLS A ene TOO NOT Boi etcutratetdetetetntnbetinbuinttady thea a a a edu iad tedubiduagbe ye A Dial Flow Regulators Service Manual Dial Flow Regulators Page 3 of 23 702 0042 V3 September 2008 1 0 General Safety Warnings W1 W2 W3 W4 W5 W6 W7 W8 W9 W10 W11 W12 W13 Before using this device read through this entire instruction manual As with all medical equipment attempting to use this device without a thorough understanding of its operation may result in patient or user injury Oxygen is not flammable however the presence of oxygen will drastically increase the rate and severity of combustion Oil or grease in the presence of oxygen becomes highly combustible Oxygen must never be allowed to contact oil grease or other petroleum based substances Do not use oil or grease on oxygen regulators flowmeters cylinders valves or other related equipment Never administer oxygen w
14. ession Washer M4 Screw M4 Button Head Detent Ball Detent Spring Control Knob Slider O Ring Drive Shaft m NENNE PHA 13 10 Regulator Reassembly a d Before reassembly check all internal parts that come into contact with the gas path are clean and free from debris or hydrocarbon contamination using an appropriate UVA black light source refer Section 8 Fit the Main Spring into the Regulator Input Body Smear a thin film of Krytox lubricant around the large piston o ring Qu Only a very small amount of lubricant is required Do not over lubricate the piston Use only Krytox lubricant Under no circumstances should any other lubricant or grease be used Assemble the Piston into the Regulator Output Body When assembling the piston offer it up at an angle to begin with then press it firmly back until the piston can go back no further and the piston shaft is square to the back face of the regulator output body Smear a thin film of Krytox lubricant around the small piston o ring Qu Only a very small amount of lubricant is required Do not over lubricate the piston Use only Krytox lubricant Under no circumstances should any other lubricant or grease be used Carefully offer the Regulator Output Body and Piston up to the Regulator Input Body and Main Spring Push together until the Piston is sitting on the Main Spring Using an engineering vice with the special end caps provided as pa
15. her processing any equipment that is received without a valid decontamination certificate a A a A A A Service Manual Dial Flow Regulators Page 5 of 23 702 0042 V3 September 2008 Dial Flow Regulators 7 0 Oxygen Compatibility 7 1 General Oxygen is not flammable but its presence will drastically increase the rate and severity of combustion Materials that will not burn ordinarily in air may burn in elevated levels of oxygen materials that will burn in air will burn more intensly Compressed oxygen is widely used in medical applications and presents a risk of serious injury if a fire occurs since it is often in close proximity to patients and clinical personnel Careful consideration is given to the design and manufacture of medical gas regulators to minimise the risks associated with high pressure oxygen It is essential that the considerations applied to the original design and manufacture of this equipment are followed through in subsequent servicing and repair activities 7 2 Standards Medical equipment designed for use in oxygen atmospheres above 50 kPa is subject to the harmonised International Standard EN ISO 15001 2004 Anaesthetic and Respiratory Equipment Compatibility with Oxygen ISO 15001 outlines best practice in the areas of product design material selection and product cleanliness and is a fundamental element of regulatory compliance and CE Marking for Oxygen control products The standard outlines two disti
16. hile smoking or when near an open flame Oxygen therapy may be a critical treatment A regulated flowmeter should be used in strict accordance with the prescription and instructions of a physician The effectiveness of Supplemental oxygen therapy can only be determined by continuous monitoring of blood oxygen levels It is essential that PaO2 or SpO2 monitoring is carried out when supplemental oxygen is prescribed Never use medical gases from a cylinder without reducing the pressure through a suitable regulator intended for that gas Always close the cylinder valve when the device is not in use Never use oxygen as a pressure medium to purge obstructed pipelines or equipment to Operate pneumatic tools or to build up any pressure in tanks Never install a pin index regulator with more than one yoke seal between the cylinder valve and the regulator Before attaching the regulator verify that the post valve is not already fitted with a yoke seal Make sure that the pin indexed or threaded fittings on the regulator inlet are compatible with the gas cylinder on which it is to be fitted Never attempt to force an incompatible connection Before removing a regulator from a cylinder fully close the cylinder valve and release all gas from the regulator Secure cylinders to a wall stand or cart The performance of the device may be affected if it is stored or transported in temperature outside of the range 20 C to 60 C
17. hydrocarbons is a common cause of oxygen regulator incidents Ensure that this area is completely free of debris and hydrocarbons in accordance with Section 8 of this manual before re assembling the regulator Input Port A A Service Manual Dial Flow Regulators Page 16 of 23 702 0042 V3 September 2008 13 9 Flowmeter Disassembly Re d Service Manual Dial Flow Regulators assembly Remove the M4 Button Head Screw that retains the Flow Plate Carrier Assembly Remove the Flow Plate Carrier Assembly Remove the small Output O ring Seal and discard along with the Compression O ring that sits immediately below the M4 Button Head Screw Qu Do not do disassemble the Carrier Plate Assembly unless there is reason to believe that the filter has become contaminated or one of the flow compromised orifices has been Press the Drive Shaft through the Output Body The Control Knob and Drive Shaft will come away from the Output Body Leave the white Control Knob and Output Sliders in place Take care not to loose the Detent Balls when the Control Knob comes away from the Output Body Remove and discard the two Drive Shaft O rings Clean the Drive Shaft using a lint free wipe lint free swab and isopropyl alcohol Fit two new Drive Shaft O rings and smear each with a thin film of Krytox lubricant Y Only a very small amount of lubricant is required Do not over lubricate the shaft Clean the Output Body using
18. ly add them to the next revision of the manual Thank you in advance for your help in improving this manual Service Manual Dial Flow Regulators Page 23 of 23 702 0042 V3 September 2008
19. nct levels of risk Devices designed to operate at gas pressures of 30 Bar 3000 kPa and above are considered to be of higher risk than devices used at gas pressures below this level Devices used at pressures below 50 kPa e g breathing circuits are considered to offer a negligible risk and consequently are outside of the scope of the standard 7 3 Adiabatic Compression Adiabatic compression occurs when a gas is compressed rapidly without loss of heat from the system When an Oxygen cylinder is opened the gas passes through the cylinder connector and compresses in the space immediately around the main jet In certain circumstances it is possible for gas temperatures to exceed 1000 C for very short periods of time and under such conditions small amounts of grease oil or other debris will ignite From this initial ignition a kindling chain can begin and progressively larger components with higher thermal masses can ignite leading to meltdown of the regulator in extreme cases 7 4 Cleanliness It is essential that devices designed to operate with Oxygen and to some degree Nitrous Oxide which also Supports combustion are assembled free from general contamination and in particular oil and grease hydrocarbons Oxygen regulators are designed for use up to gas pressures of 20 000 kPa 200 Bar and therefore offer a significant risk of ignition Hydrocarbons fluoresce when exposed to a source of UVA light and a suitably powered light source with a
20. or explosion Service Manual Dial Flow Regulators 702 0042 V3 September 2008 Page 4 of 23 2 0 3 0 4 0 5 0 6 0 Dial Flow Regulators Description of Symbols Attention see Instructions for Use Use no oil Requirement for Formal Training Carn t Medical Marketing Ltd provide cost effective training courses for their full range of gas control products Our policy on the need for formal training is given below Key Essential Mandatory No attempt should be made to service repair or test this equipment before the successful completion of the appropriate Carn t Medical course Recommended Optional We strongly recommend an appropriate Carn t Medical course but also acknowledge that someone with suitable qualifications and experience in the field of gas control products could undertake servicing repair and testing of this product in conjunction with the relevant service manual Conversion Factors Pressure 100 kPa 1 Bar 14 5 psi Approvals Dial Flow Regulators are CE Marked in accordance with the Medical Device Directive 93 42 EEC and meet the requirements of the following Harmonised Standards ENI38 Lia Pressure Regulators and Pressure Regulators with Flowmetering Devices Decontamination Certificate A valid decontamination certificate should accompany all equipment returned to us for service or repair In the interests of the health and safety of our employees we may return to you without furt
21. rt of the Service Tool Kit refer Section 13 6 compress the main spring Before fully compressing the assembly take care to align the screw holes in the Regulator Output Body with those in the Regulator Input Body Apply a thin film of Loctite 222 Thread Locking Compound to each of the 4 countersunk securing screws and tighten in sequence Release the engineering vice and remove the regulator Refit the Cylinder Contents Gauge Fit the 2 x retaining dowels refer Section 13 3 gu Be careful to retain both dowels in place until the Cylinder Connector is refitted Refit the Cylinder Connector and Input Port Connector to the Regulator Input Body Fit the 3 x M4 Dogpoint screws that retain the Cylinder Connector refer Section 12 1 Dial Flow Regulators Rotate the Cylinder Connector to allow access to each of the 3 screws that are equally spaced around the input body Note the orientation of the Regulator Output Body with respect to Regulator Input Body Service Manual Dial Flow Regulators 702 0042 V3 September 2008 Page 18 of 23 Dial Flow Regulators 14 0 Procedures for Functional Check Test Equipment Required Range A Calibrated flowmeter FSD 18 l min accuracy 5 of reading resolution 0 1 l min Calibrated flowmeter FSD 400 ml min accuracy of 5 of reading resolution 0 1 ml min Calibrated flowmeter FSD 100 ml min accuracy Y 5 of reading resolution 0 1 ml min
22. t Options Dial Flow Regulators with auxiliary 60 psi gas outlet 1 Tubing Nipple for flowmeter 2 Schrader BS5682 socket for 60 Range D psi auxiliary outlet 818 0027 Pin Index eae BS5682 socket for 60 Range C ps auxiliary outlet ee Nipple for flowmeter 818 0018 UK Bull Nose G5 8 Schrader BS5682 socket for 60 Range D os auxiliar outlet 818 0020 UK Bull Nose G5 8 ee BS5682 socket for 60 Range C auxiliar outlet 818 0021 Benelux Bull Nose ie Female threaded for 60 psi Range D Sree outlet ae ETT 818 0025 0025 Pin Pinindex a Nipple RangeD D Bey Nipple for flowmeter 818 0028 Pin Index Schrader BS5682 socket for 60 Range D a auxiliary outlet 818 0024 0024 UK Bull Nose UK Bull Nose G5 8 Tubing Nipple RangeD D AA AAA Service Manual Dial Flow Regulators Page 8 of 23 702 0042 V3 September 2008 Dial Flow Regulators 10 0 Flowmeter Ranges Position Range A Range C Range D Range E 1 0 02 0 10 0 5 0 01 2 0 03 0 20 1 0 0 02 3 0 05 0 30 1 5 0 03 4 0 08 0 40 2 0 0 04 5 0 12 0 50 3 0 0 05 6 0 20 0 60 4 0 0 06 7 0 30 0 70 5 0 0 07 8 0 50 0 80 6 0 0 08 9 0 75 0 90 8 0 0 09 10 1 0 1 0 10 0 0 10 11 3 0 1 5 15 0 1 0 Flows given in Litres per Minute l min 11 0 Specification Yeni ge Maximum Input Pressure 200 Bar 20 000kPa Minimum Input Pressure 10 Bar 1000 kPa Flow Accuracy 10 of setting at 1 lpm and above 20 of setting below 1 Ipm i varying inlet pressure Typically less than 15 chang
23. t and the main jet increasing the impedance to gas flow through and pressure drop across the main jet This in turn reduces the pressure acting on the piston head The piston will reach a state of equilibrium based upon the forces acting on it i e main spring gas pressure on piston head gas pressure on piston seat The exact position of the piston above the jet will be dependant upon the gas flow The output pressure is then fed through an orifice to derive a particular flow The device has 11 different flow positions any one of which can be selected by the user depending upon the clinical requirement An Over Pressure Valve OPV prevents dangerous levels of output gas pressure and is factory set at 5 Bar 2 Bar for Micro Flow In the event of excessive output pressure a spring loaded piston lifts and safely exhausts gas to ambient No attempt should be made to adjust or tamper with the OPV The Carn t range is of modular construction and a variety of different cylinder input connections and flow ranges are available refer options table in Section 9 Dial Flow Regulators Over Pressure Valve OPV Main Spring Output Cylinder Connector Contents Gauge Output Body Regulator Input Body Cylinder Connector Sintered Filter Piston Head Ze inp Piston Seat Valve Jet Service Manual Dial Flow Regulators 702 0042 V3 September 2008 Page 7 of 23 Dial Flow Regulators 9 0 Produc
24. wavelength of between 315nm and 400nm offers an excellent way of ensuring that workplace and product are not contaminated The following can be considered good practise e Always wash rinse and dry your hands carefully before and after servicing regulators e Do not use barrier or other hand creams e Use Isopropyl Alcohol IPA for cleaning components e Use only lint free wipes for cleaning e Clean down the work area using IPA and lint free wipes before you begin e Lay down a lint free wipe as a work area to lay components out e Check the work area for hydrocarbon contamination before you start e Use an ultraviolet light source to inspect high pressure components for particulate and hydrocarbon contamination before re assembly A Service Manual Dial Flow Regulators Page 6 of 23 702 0042 V3 September 2008 8 0 Product Description The Carn t range of dial flow regulators provides a safe and convenient way of providing oxygen therapy to a patient directly from an Oxygen cylinder Gas from a high pressure cylinder enters the regulator through a cylinder connector with an integral 40 micron sintered filter The gas passes through the main jet and piston shaft to the space above the piston head and exhausted to atmosphere through the output connector The pressure build up in this Space acts on the piston head Pressure Force Area and begins to move the piston down against the main spring which closes the gap between the sea
Download Pdf Manuals
Related Search