Welch Allyn Medical Diagnostic Equipment 2511 Users Manual 67 1772R1.1
2015-02-03
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OWNER’S MANUAL FOR ASPIRATION / FILTRATION VACUUM SYSTEM MODELS: 2511 & 2515 Model 2511B-75 / 2511C-75 Model 2515B-75 Approval Agency’s Model 2515C-75 Warning Not recommended for pumping acid, base or organic vapors or gases. Welch Rietschle Thomas 7301 North Central Avenue Skokie, IL 60077 Phone: (847) 676-8800 Fax: (847) 677-8606 (Technical Support) Fax: (920) 451-4397 (Ordering) E-Mail: welchvacuum@thomasind.com Web-Page: www.welchvacuum.com For outside of U.S. and Canada, contact your local Rietschle Thomas sales office, see back page Part No. 67-1772R1.1 Printed in USA INSTRUCTION WARNING AND CAUTION PLEASE READ BEFORE OPERATION While reading your manual, please pay close attention to areas labeled: WARNING AND CAUTION. The description of each is found below. WARNING Warnings are given where failure to observe instruction could result in injury or death to people. CAUTION Cautions are found where failure to observe the instruction could result in damage to the equipment, associated equipment and process. These units confirm to the SI International system of units of measurement. The following symbols (with recommendation of IEC1010 ) of warning will be found on the pump. Caution - refer to accompanying documents Caution - risk of electrical shock Caution - hot surface Double Insulated OFF (Power) ON (Power) WARNING Motor includes a self resetting thermal cutout and the pump could restart without actuation under fault condition. 2 TABLE OF CONTENTS Section 01 - SAFETY INFORMATION 1.10 Caution To Prevent Injury 1.20 Caution To Reduce Risk Of Electrical Shock 1.30 Warning To Reduce Risk Of Electrocution 1.40 Danger To Reduce Risk Of Explosion Or Fire Section 02 - INSTALLATION 2.10 Introduction 2.20 Unpacking 2.30 Pump Mounting 2.40 Pump Location 2.50 Intake And Discharge Provision 2.60 Electrical Power 2.70 Vacuum Connection 2.80 Vacuum Gauges 2.90 Traps Section 03 - OPERATION 3.10 Starting Procedures 3.20 Leak Detection 3.30 Operating Pressure Range 3.40 Shutdown Procedures Section 04 - MAINTENANCE 4.10 Maintenance Procedures Section 05 - TROUBLESHOOTING 5.10 Vacuum Problems 5.20 Pressure Problems 5.30 Trouble Shooting Guide For 2515 5.40 Trouble Shooting Guide For 2511 And 2515 Section 06 - SPECIFICATION 6.10 Specification Table Section 07 - WARRANTY Section 08 - EXPLODED VIEWS AND PARTS LIST 8.10 Exploded View And Parts List For 2511B-75 / 2511C-75 / 2511C-76 8.11 Exploded View And Parts List For 2515B-75 / 2515C-75 / 2515C-76 8.12 Exploded View And Parts List For 1475K-20 Section 09 - KITS AND ACCESSORIES 3 SECTION 1: SAFETY INFORMATION 1.10 Caution: To Prevent Injury... 1.11 Never operate this product if it has a damaged cord or plug. If it is not working properly, has been dropped, damaged or has fallen into water, please return the product to a Welch service center for examination and repair. 1.12 Keep the cord away from heated surfaces. All electrical products generate heat. To avoid serious burns never touch unit during or immediately after operation. 1.13 Never block any air openings or place it on a soft surface where the openings may be blocked. The air openings are for ventilation of the motor inside the housing. Keep all air openings free of lint, dirt and other foreign objects. 1.14 Models 2511 and 2515 are thermally protected and can automatically restart when the protector resets. Always disconnect power source before servicing. 1.15 Never drop or insert fingers or any other object into any openings. 1.16 Do not operate this product where oxygen is being administered. 1.17 Wear safety glasses and goggles when operating this product. Never point any air nozzle or air sprayer toward another person or any part of the body. 1.18 Use only in well ventilated areas. 1.19 Do not use any tools or attachments without first determining maximum air pressure for that tool or attachment (applies to model 2511 only). Be sure to properly identify intake and discharge before using pump. See Section 2.50. WARNING Do not fill the collection jar above the safe fill level line indicated on the jar. 1.20 Caution: To Reduce Risk Of Electrical Shock... 1.21 Do not disassemble. Disassembly or attempted repairs if accomplished incorrectly can create electrical shock hazard. Refer servicing to qualified service agencies only. 1.22 115V unit is supplied with a three pronged plug. Be sure to connect pump to a properly grounded outlet only. 1.30 Warning: To Reduce Risk Of Electrocution... 1.31 Do not use this product in or near area where it can fall or be pulled into water or other liquids. 1.32 Do not reach for this product if it has fallen into liquid. Unplug immediately. 1.33 Never operate this product outdoors in the rain or in a wet area. 1.40 Danger: To Reduce Risk Of Explosion or Fire... 1.41 Do not use this pump in or near explosive atmospheres or where aerosol (spray) products are being used. 1.42 Do not pump anything other than atmospheric air. 1.43 Do not pump combustible liquids or vapors with this product or use in or near an area where flammable or explosive liquids or vapors may exist. 1.44 Do not use this product near flames. WARNING Failure to observe the above safety precautions could result in severe bodily injury, including death in extreme cases. 4 SECTION 2: INSTALLATION 2.10 Introduction 2.11 This manual has been compiled not only for the care and maintenance of the Welch Aspiration/Filtration Vacuum System now in your possession, but as a helpful reference and guide to prevent many problems which may occur if used improperly. 2.20 Unpacking 2.21 Carefully remove the Aspiration/Filtration Vacuum System from the shipping case. Preserve all paperwork for future reference. If damage has occurred from shipment a claim must be filed with the carrier immediately; preserve the shipping carton for inspection by the carrier. If you are required to communicate with your dealer or Welch Vacuum, be sure to include your order numbers for quick identification. Do not return the pump to the factory without first calling for a returned goods number. 2.30 Pump Mounting 2.31 Rubber feet are attached to the pump. Rubber feet are excellent for applications involving a semi-flexible surface such as a bench top; they help to isolate noise and eliminate creeping. All Aspiration/Filtration Vacuum Systems should be mounted on a horizontal plane. 2.40 Pump Location 2.41 The Aspiration/Filtration Vacuum System should be located preferably in a clean, dry, and well ventilated area. Please be sure not to block the ventilation holes located on the motor housing. The system should be placed where the surrounding temperature remains between 10°C and 40°C (50°F and 104°F). Always check to insure the location chosen is protected from direct or indirect moisture contact. Welch recommends that the pump be installed at the highest point within the system to prevent possible water condensate from entering the pump. The pump should be located as closely to its system in order to utilize it most efficiently. WARNING The motor is thermally protected and will automatically restart unexpectedly when the overload device resets. Don’t pump flammable or explosive gases or vapors or operate this pump in an atmosphere containing flammable or explosive gases or vapors. 5 2.50 Intake And Discharge Provision 2.51 The vacuum regulator and vacuum dial gauge is attached to the collection jar. The vacuum regulator allows the vacuum level to be set between roughly atmospheric pressure and the maximum vacuum allowed for the pump model. The collection jar and hydrophobic filter keeps water from accidentally being drawn into the unit. The regulator allows discharge pressure to be set between atmospheric and the maximum possible for the pump model. Model 2511 is equipped with a pressure port. Note: Adjusting the vacuum regulators will affect the performance of the pump. Pressure / Exhaust Intake Vacuum Regulator Vacuum Gauge Model 2511B-75 & 2511C-75 Intake Discharge / Exhaust Vacuum Regulator Vacuum Gauge Model 2515B-75 Intake Discharge / Exhaust Vacuum Regulator Vacuum Gauge Model 2515C-75 WARNING Never block the discharge port. If the exhaust is blocked, pressure will build-up in the pump above its rated operating pressure. Be sure to call Welch technical service prior to start up at 847-676-8800 if you have any questions. 6 2.60 Electrical Power 2.61 Power Source Review Review the power source and the motor rating to be sure they agree in voltage, phase, and frequency. Serious damage may occur to the motor if it is connected to an improper voltage. All Welch pumps must be grounded. Grounding reduces the risk of electric shock in the event of an electrical short circuit. The plug must be plugged into a properly grounded outlet. Consult your local electrical codes if you have doubts. 2.62 Overload Protection (Model 2515) Motor thermal overload protection is made available by the motor manufacturer as an aid to minimize motor failure. Overload protection is a standard feature on both 50 and 60 Hz single-phase-motors. The motors have automatic overload protection. Automatic reset protection is designed to reset itself after a predetermined cooling period. If the fault to the drive remains unaltered, the motor will cycle on and off until the fault is corrected. 2.63 Servicing of Double-Insulated Product (Model 2511) In a double-insulated product, two systems of insulation are provided instead of grounding. No grounding means is provided on a double-insulated product, nor should a means for grounding to be added to the product. Servicing of a double-insulated product requires extreme care and knowledge of the system and should be done only by qualified service personnel. Replacement parts for the double-insulated product must be identical to those parts in the product. 2.64 Classification And Symbol Glossary 2.70 Vacuum Connection 2.71 For best results, Welch recommends the length of the tubing between the pump and the chamber be kept as small as possible. 2.80 Vacuum Gauges 2.81 All Aspiration/Filtration Vacuum Systems come with dial vacuum gauges. The vacuum gauge gives negative pressure - That is pressure below atmospheric. The reference point for the gauge is atmospheric pressure. 2.90 Traps 2.91 The need for a Trap The pumps will handle humid air. All wetted aluminum parts are treated for corrosion protection from moisture. All other wetted parts are stainless steel. A plastic trap with a float valve is attached to the regulator assembly to prevent water condensate from accidentally being ingested into the pump. See figure below. Filtration Manifold Model 2515 WARNING The pump is not recommended for pumping acid, base or organic vapors or gases. Serious damage to the pump will shorten the pump’s service life. In addition, pumping flammable vapors or gases can lead to serious safety hazard leading to fire or explosion. 7 SECTION 3: OPERATION 3.10 Starting Procedures 3.11 Starting aWelch Aspiration/Filtration Vacuum System Before attaching the pump to a system, familiarize yourself with the function and action of the Aspiration/Filtration Vacuum System that you have acquired. Review the power requirements as described in Section 2.60. Welch recommends running the pump for a few minutes to warm it up, before use. The warm-up improves the pumps ability to handle humid air. Set the device on a level, sturdy surface so the controls can be easily reached and adjusted. Connect one end of the application tubing to the lid vacuum port. Note: The in-line hydrophobic filter is designed to prevent foreign material from being drawn into the device. Pump performance may decrease if the hydrophobic filter gets wet or build up of forgein materialsor Medfilter occurs. It may be necessary to periodically change the hydrophobic filter CAUTION Do not move this device with a full collection jar. 1. 2. 3. Be sure that the power switch is in the OFF (down) position. Plug in the device and turn the switch to the ON (up) position. Block the application tube leading from the collection jar and allow the gauge to reach stable vacuum level. Set vacuum level by turning the regulator knob counter-clockwise to increase vacuum or clockwise to decrease vacuum.. Note: This procedure should be performed each time you use this device. 3.12 Cleaning The Device 1. Make sure the ON/OFF switch is in the OFF (down) position. 2. Unplug the device from the wall outlet and allow suction level to drop. 3. Remove the application tube from the lid vacuum port. Tubing should be cleaned after every use. Run hot water through it. Soak in a solution of one part of vinegar to three parts hot water for 20 minutes. Rinse with hot tap water and air dry. 4. Remove the pump tubing from the top of the jar lid. 5. Remove the jar from the holder and place on a firm, flat surface. Release the tabs and lift the lid from the jar. 6. Wash the jar, gasket, lid and tube in a hot water/dishwashing detergeant solution and rinse with hot tap water. Soak in a solution of one part of vinegar to three parts hot water for 20 minutes. Rinse with hot tap water and air dry. 7. Wipe the outside of the case with a clean, damp cloth after each use. 3.20 Leak Detection 3.21 The importance of eliminating all leaks in a vacuum system is obvious. The pump must remove this added volume of leaked gas to maintain the desired vacuum. Leaks for these pumps can be located by slightly pressuring the system and painting the suspected area with a thick soap solution. Escaping air will produce soap bubbles. 8 3.30 Operating Pressure Range 3.31 Aspiration/Filtration Vacuum Systems are designed to be run from slightly below atmospheric to their maximum vacuum level on the intake side. The pumps also may be run from atmospheric to their maximum rated pressure rating (Model 2511 only). Consult the Specification Table for the ratings of your specific model (See Section 6, Specifications). 3.40 Shutdown Procedures 3.41 After use, Welch recommends the pump be run for about 2 minutes disconnected from the vacuum process. The air pumped through the mechanism will purge out water vapor or droplets of water condensate that may have formed on the inside of the pump. This purge of the pump mechanism helps prevent corrosion. SECTION 4: MAINTENANCE 4.10 Maintenance Procedures 4.11 Maintaining a Welch Aspiration/Filtration Vacuum System These units are 100% oil-free. The pump employs a non-lube piston and cylinder. No maintenance is necessary for the bearings. All bearings are sealed and permanently lubricated. Lubrication should not be attempted. The units are built for continuous duty operation with the quietness and durability of a diaphragm, but with piston performance. 4.12 Hydrophobic Filter Replacement Change the filter whenever foreign material is drawn into it or if you notice a reduction in vacuum level. 1. Disconnect the long tube from the fitting on top of the jar lid. 2. Gently pull the hydrophobic filter off of the short tube, that is connected to the regulator inlet port, and then remove the long tube from the hydrophobic filter . 3. With the green dot facing down, push the new hydrophobic filter into the short tube, that is connected to the regulator inlet port, then push the long tube. 4. Connect the long tube to the green dot facing barb, and then connect to the fitting on top of the jar lid. 9 SECTION 5: TROUBLESHOOTING 5.10 VACUUM PROBLEMS 5.11 Leakage, contamination, and unusual outgassing are the general causes of problems associated with poor vacuum. To operate at maximum efficiency, a system must be thoroughly clean. If the system is completely clean and free from leaks and unwarranted vacuum problems still exist, the pump should be checked. A simple criterion for the condition of the pump is the determination of its maximum vacuum capability. This can be accomplished by blocking of the intake and reading the vacuum level on the gauge (See Section 2.80). 5.20 PRESSURE PROBLEMS 5.21 Leakage and contamination are the general causes of problems associated with poor pressure. To operate at maximum efficiency a system must be thoroughly clean. If the system is completely clean and free from leaks and unwarranted pressure problems still exist, the pump/compressor should be checked by a service technician. 5.30 TROUBLE SHOOTING GUIDE FOR 2515 Poor Pumping Speed Poor Vacuum Loud Unit X X X Damaged Valves Replace flapper Valves X X X Debris in Valves Remove debris and check for valve damage X X X Damaged Gasket Replace Gasket X X X Loose Head Screw Tighten Head Screw X X X Loose Fitting Tighten Fitting Possible Cause Trouble Shooting Guide continous on next page. 10 Corrective Action 5.40 TROUBLE SHOOTING GUIDE FOR 2511 / 2515 Symptoms Possible Cause Remedies Reduced/low vacuum 1. Clogged hydrophobic filter. 1. Replace the filter following directions in this manual. (Section 4.12) 2. Regulator improperly set. 2. Set regulator vacuum level following operating instructions. 3. Air leak. 3. Check the tubing and connectors for possible leaks. Attach, tighten or replace. 4. Jar lid gasket not secured to jar. 1. Power cord not plugged in. 4. Be sure the jar lid and gasket fit tightly on the jar. 1. Plug in the power cord. 2. Defective switch. 2. Contact your service center or distributor. (See back page) 3. Vacuum still exists in system. 3. Disconnect tubing from the collection jar to release vacuum. Reconnect tubing and turn on the device. 1. Contact your service center for repair (410) 712-4100. 1. Check the tubing and connectors for possible leaks. Attach, tighten or replace. 1. Unplug device and allow to cool for 10 minutes. Plug in and restart. Device does not start Gauge reads incorrectly Device runs but gauge reads zero Device stops running during use 1. Faulty gauge. 1. Gauge tubing not connected or is leaking. 1. Device overheated. 2. Blown fuse or circuit breaker in household circuit. 2. Replace fuse or reset breaker. 3. Low voltage to device. 3. Too many motor operated appliances on same circuit. 11 SECTION 6: SPECIFICATION 6.10 SPECIFICATION TABLE Model 2511 Cat. No. Free Air Displacement CFM (L/min) 2511B-75 2511C-75 2511C-76 2515B-75 2515C-75 2515C-76 0.39(11) 0.39(11) 1.2(34) 1.0(28) 1.2(34) 27.2 70(93) 11.0 x 8.3 x 10.0 ( 28 x 21 x 25.5) 14.8 x 8.3 x 10.0 (37.5 x 21 x 25.5) 6.4 Shipping Weight, lbs Electrical Requirements 0.32(9.2) 21.3 219(292) Maximum Vacuum in. Hg Ultimate Vacuum Torr (mbar) Dimensions L x W x H in. (cm) Model 2515 115V, 60 Hz 230V, 50Hz 12 19 100V, 50/60Hz 115V, 60 Hz 230V, 50Hz 100V, 50/60Hz SECTION 7: WARRANTY IMPORTANT Please Read Carefully Before Operating This Welch® Vacuum Pump UNPACKING Inspect the pump carefully. If any damage has occurred, file claim with the carrier immediately. Save the shipping container for carrier to inspect. OPERATING PUMP Refer to the enclosed Instruction/Operation Manual for all information to properly operate and maintain the pump. WARRANTY This Welch Vacuum product is warranted to be free from defects in material and workmanship. The liability of Welch Rietschle Thomas under this warranty is limited to servicing, adjusting, repairing or replacing any unit or component part which in the judgment of Welch Rietschle Thomas has not been misused, abused or altered in any way causing impaired performance or rendering it inoperative. No other warranties are expressed or implied. The method of executing this warranty: servicing, adjusting, repairing or replacing shall be at the discretion of Welch Rietschle Thomas. Vacuum pumps that have been used for any period, however short, will be repaired under this warranty rather than replaced. The warranty is effective for one year from the date of original purchase when: 1. The warranty card has been completed and returned. 2. The product is returned to the factory or other designated service centers, freight prepaid. 3. The product in our judgment is defective through no action or fault of the user. If the product has become defective through misuse, abuse, or alteration, repairs will be billed regardless of the age of the product. In this event, an estimate of the repair costs will be submitted and authorization of these charges will be required before the product is repaired and returned. Dry Pumps Accessories Dry Pumps Accessories 67-1577 Direct Drive Direct Drive Other Belt Drive Belt Drive ❑ Laboratory Catalog❑ Industrial Catalog Application Purchased From Phone No. 13 For any additional information/literature needed, please check below: Zip Code State City Address Company Name Date Purchased Serial No. Model No. Warranty Information To reduce additional charges and delays either within or outside of the warranty period, contact Welch Rietschle Thomas @ (410) 712-4100 for a return authorization number. Products without a return authorization number will be refused by our receiving department. Before shipping, properly pack the pump, insure it against loss or damage, and on the outside of the pump packaging and the packing slip write in the return authorization number. Pumps damaged due to improper packaging are the customer’s responsibility. SECTION 8: EXPLODED VIEW & PARTS LIST 8.10 Model 2511B-75 / 2511C-75 / 2511C-76 ON/OFF SWITCH PUMP REGULATOR KNOB VACUUM GAUGE PRESSURE PORT SHORT TUBING 14 LONG TUBING HYDROPHOBIC FILTER COLLECTION JAR APPLICATION TUBING 8.11 Model 2515B-75 / 2515C-75 / 2515C-76 COLLECTION JAR APPLICATION TUBING HYDROPHOBIC FILTER LONG TUBING SHORT TUBING 15 PUMP REGULATOR KNOB ON/OFF SWITCH VACUUM GAUGE 8.12 Model 1475K-20 COLLECTION JAR LONG TUBING SHORT TUBING HYDROPHOBIC FILTER APPLICATION TUBING 16 SECTION 9: KITS AND ACCESSORIES 9.10 REPAIR KITS 9.11 Repair Kit for Model 2515 Description Connecting Rod Assembly #1 Handle Screw #2 Head Screw #3 Head O-Ring #4 Valve Plate Assembly #5 Cylinder O-Ring #6 Service Seal Gasket Kit Kit 2515K-01 2515K-02 1 2 4 1 1 1 1 1 17 9.20 VACUUM ACCESSORIES 9.21 Table for Vacuum Accessories Adapter S.S. 40mm Description Welch Kit 1475K-01 8-Channel Adapter S.S. 40mm 1475K-02 1-Channel Adapter for dispoable tips, w/o ejector Rubber Adapter for Pasteur pipettes 1475K-03 1475K-04 8-Channel Adapter for dispoable tips, w/ejector 1475K-05 Adapter S.S. 150mm 1475K-06 4-Channel Adapter S.S. 40mm 1475K-07 Adapter S.S. 280mm 1475K-08 1-Channel Adapter for dispoable tips, w/ejector 1475K-09 Vacuboy Hand Operator w/ 1-Channel Adapter S.S. 1475K-10 18 9.30 ELECTRICAL ACCESSORIES 9.31 Table for Electrical Accessories Description Welch Kit 115V 60Hz - Maintained on/off footswitch 1430A 115V 60Hz - Variable on/off footswitch 1430B 90-230V 50/60Hz - Variable on/off footswitch with IEC connections 1430C 9.40 REPLACEMENT ACCESSORIES 9.41 Table for Replacement Accessories Description Welch Kit Aspiration Kit - Includes: 6 ft tubing, 2000ml Autoclavable jar w/lid, and two hydrophobic filters 1475K-20 ten hydrophobic filters 1475K-21 19 Welch Rietschle Thomas Vacuum Pump Repair Facility 7301 North Central Avenue Skokie, IL 60077 Phone: (847) 676-8800 Fax: (847) 677-8606 (Technical Support) Fax: (920) 451-4397 (Ordering) Copyright© 1997-2004 Welch Rietschle Thomas Welch is registered trademarks of Welch Rietschle Thomas
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