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WELCH-ILMVAC
Welch-Ilmvac
5621 W. Howard Street
Niles, IL 60714
Phone: (847) 676-8800 (Technical Support)
Fax: (847) 677-8606
E-Mail: gdwelchvacuum@gardnerdenver.com
Web-Page: www.welchvacuum.com
OWNER'S MANUAL
FOR
ASPIRATION / FILTRATION
VACUUM SYSTEM
MODEL:
2511
Models 2511B-75 / 2511C-75 / 2511C-76 / 2511C-77
Warning
Not recommended for pumping acid,
base or organic vapors or gases.
For outside of U.S. and Canada, contact your local
Gardner Denver sales offi ce, see back page
Part No. 642781 0510
Printed in USA
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Summary of Contents for Welch 2511B-75
- Page 1 OWNER’S MANUAL ASPIRATION / FILTRATION VACUUM SYSTEM MODEL: 2511 Models 2511B-75 / 2511C-75 / 2511C-76 / 2511C-77 Warning Not recommended for pumping acid, base or organic vapors or gases. For outside of U.S. and Canada, contact your local Gardner Denver sales offi ce, see back page Welch-Ilmvac 5621 W.
- Page 2 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.
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Page 3: Table Of Contents
Specifi cation 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 1475K-20 Section 09 - KITS AND ACCESSORIES... - Page 4 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.
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Page 5: Introduction
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. -
Page 6: Intake And Discharge Provision
Vacuum Regulator Vacuum Gauge Models 2511B-75 / 2511C-75 / 2511C-76 / 2511C-77 Please contact Welch technical service prior to start up at 847-676-8800 if you have any questions. WARNING Never block the discharge port. If the exhaust is blocked, pressure... -
Page 7: Electrical Power
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. -
Page 8: Section 03 - Operation
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. -
Page 9: Operating Pressure Range
(See Section 6, Specifi cations). 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. -
Page 10: Section 05 - Troubleshooting
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 effi ciency, 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. - Page 11 SECTION 6: SPECIFICATION 6.10 SPECIFICATION TABLE i t l...
- Page 12 To reduce the additional charges and delays either within or outside of the warranty period, contact Welch Vacuum at (847) 676-8800 for a return authorization number. Products without a return authorization number will be returned by our receiving department.
- Page 13 SECTION 8: EXPLODED VIEW & PARTS LIST 8.10 Model 2511B-75 / 2511C-75 / 2511C-76 / 2511C-77 ON/OFF SWITCH PUMP PRESSURE PORT LONG COLLECTION TUBING REGULATOR VACUUM GAUGE SHORT HYDROPHOBIC APPLICATION KNOB TUBING FILTER TUBING...
- Page 14 9.21 Table for Vacuum Accessories Operating Instructions: Hand-Held Pipettor (cat. No. 1475K-10) for Welch® Aspirator Stations Operation The vacuum is controlled by the pressure sensitive turquoise control button on the top of the hand piece. By means of the plastic screw opposite the control button, the residual suction level can be set, which will prevent dripping of waste liquids from the tip or pipette.
- Page 15 Accessories for Welch Aspiration Stations Compact Model 2511 Station Cat. No. Description 2511B-75 11 l/min 115V 60Hz 2511C-75 9.2 l/min 230V 50Hz 2511C-76 11 l/min 100V 60/50Hz High Flow Model 2515 Station Cat. No. Description 2515B-75 34 l/min 115V 60Hz...
- Page 16 9.30 ELECTRICAL ACCESSORIES 9.31 Table for Electrical Accessories 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 Aspiration Kit - Includes: 6 ft tubing, 2000ml Autoclavable jar w/lid, and two hydrophobic filters 1475K-20...
- Page 17 Sales and Service Offi ces For Gardner Denver Thomas, Welch Vacuum Technology USA, Canada, Latin America Asia Europe Gardner Denver Thomas, Inc., Gardner Denver Hong Kong, LTD. Gardner Denver UK Welch Vacuum Technology Unit 2503, Metropole Square Waterbrook Estate, Waterbrook Road 5621 W.
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