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Related Manuals for Gardner Denver Welch Self-Cleaning Dry Vacuum System DryFast 2025
Summary of Contents for Gardner Denver Welch Self-Cleaning Dry Vacuum System DryFast 2025
- Page 1 (217) 352-9330 | Click HERE Find the Gardner Denver 2025 at our website:...
- Page 2 Pumping liquids will cause the pump to stop working. Gardner Denver Welch Vacuum Technology For outside of U.S. and Canada, contact your local 7301 North Central Avenue Gardner Denver sales office, see back page Skokie, IL 60077 Phone: (847) 676-8800 Fax: (847) 677-8606 (Technical Support) Fax: (920) 451-4397 (Ordering) E-Mail: welchvacuum@rtpumps.com...
- Page 3 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 4: Table Of Contents
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 Electricution 1.40 Danger to Reduce Risk of Explosion or Fire Section 02 - Installation 2.10 Intoduction 2.20... -
Page 5: Caution To Prevent Injury
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 Gardner Denver Welch Vacuum Technology service center for examination and repair. -
Page 6: Section 02 - Installation
If you are required to communicate with your dealer or Gardner Denver Welch Vacuum Technology be sure to include your order numbers for quick identification. Do not return the system to the factory without first calling for a returned goods number. -
Page 7: Electical Power
PROPERLY IDENTIFY THE INLET AND OUTLET OF THE PUMP Outlet Port Inlet Port WARNING: (Model 2028 shown) Remove Plug From Exhaust Port Before Operating. 2.20 Electrical Power 2.21 Power Source Review Review the power source and the voltage rating on the units serial number tag to be sure they agree in voltage, phase and frequency. - Page 8 The temporary adapter should be used only until a properly grounded outlet (Sketch A) can be installed by a qualified electrician. The green colored rigid ear, lug, etc. extending from the adapter must be connected to a permanent ground such as a properly grounded outlet box cover. Whenever the adapter is used, it must be held in place by a metal screw.
- Page 9 2.25.3 Digital Vacuum Gauge for 2028 only A digital vacuum gauge is incorporated into the model 2028 vacuum system. The digital gauge is an absolute gauge located in the top front section of the Self-Cleaning system. The unit of measurement is preset during production. Set Units - Allows the user to change vacuum units from torr, mbar, and kPa.
- Page 10 2.28 Inlet and Outlet Separators (all Models) The glass inlet separator helps protect the diaphragm pump inside the system from ingesting liquids or particulates. The outlet separator catches any liquid or particulates ejected while the pump is running and when its is operating in the self-cleaning purge cycle.
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Page 11: Traps
A variety of cold traps are available from Welch. Contact your closest Gardner Denver Welch Vacuum Technology sales office. See country directory on back cover, or visit the Welch Web-Site at www.welchvacuum.com. -
Page 12: Section 03 - Operation
Section 3: OPERATION 3.10 Starting Procedures 3.11 Starting a Welch Vacuum System Before attaching the Self-Cleaning Dry Vacuum System to a rotary evaporator, concentrator or gel dryer it is important to familiarize yourself with the function, features and action of the Self-Cleaning Dry Vacuum System which you have acquired. - Page 13 VENT MODE Note: the gauge will not display atmospheric pressure. The pump will automatically go into vent mode when the pump is turned on. VENT Mode is the central mode to allow the user to enter MENU, AUTO, MANUAL and MAXIMUM VACUUM modes. VENT mode allows the user to quickly remove the vacuum setting on an application and vent the system.
- Page 14 Anti-BUMPING/FOAMING MODE The anti-BUMPING/FOAMING functions will decrease the set vacuum level by several torr. Continual pressing of the Anti-BUMPING/FOAMING button will decrease the vacuum setting an equally additional several torr, mbar or kPa. The anti-BUMPING/FOAMING is only enabled in AUTO mode. Press once and the vacuum decreases, press a second time and the unit goes back to MAXIMUM VACUUM.
- Page 15 All programs are quickly accessible in VENT mode by pressing the numeric keypad for each program number. Example: Keypad # Program # Note: All pressure values will be entered according to the predefined unit settings (torr, mbar, kPa). Time will be entered in minutes. SETUP MODE Press SETUP to access all program functions 1) Set Units...
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Page 16: Section 04 - Maintenance
- 3) AUTO SHUTDOWN Auto Shutdown mode allows the user to enable or disable shutting down the unit after a timed program has run. When Auto Shutdown is Enabled the unit will automatically entered a timed Self-Cleaning cycle after a time-entered program has completed. If Auto Shutdown has been Disabled the unit will automatically go into vent mode and have to be manually turned off after a time entered program has completed. -
Page 17: Section 05 - Calibration
Section 5: CALIBRATION 5.10 Starting the Calibration for Model 2027 only Under normal conditions the digital vacuum gauge on model 2027 vacuum system should not need recalibration as it has been factory set. In the event that calibration is lost, the unit will flash the message: “CAL Err”... -
Page 18: Section 06 - Troubleshooting
Section 6: TROUBLESHOOTING 6.10 Vacuum Problems 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 unwarrantable vacuum problems still exist, the pump should be checked. - Page 19 Problem Possible Cause Solution � External connection leak � Check and tighten all external tubing connections; check tubing for cracks; tighten connections in PTFE heads � Gas Ballast is On � Switch Gas Ballast to OFF position � Vacuum Control is not Closed �...
- Page 20 Problem Possible Cause Solution � Motor failure � Change Motor � Broken diaphragm – Con-rod connection � Change Diaphragm and/or Con-Rod � Poor readings � See section 2.25.1 Analog Vacuum Gauge � Check vacuum performance - See Poor Vacuum section above �...
- Page 21 Section 7: SPECIFICATION 7.10 Specification Table Welch 2025 2026 2027 2028 Model (Analog) (Analog) (Digital) (Digital) Free Air Displacement CFM (L/min) @ 60 Hz 1.2 (34) 1.1 (32) 1.1 (32) 1.2 (35) m3/hr (L/min) @ 60 Hz 1.7 (28) 1.6 (27) 1.6 (27) 1.8 (29) Vacuum Level, in Hg...
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Page 22: Section 08 - Drawings, Parts List And Exploded View
Section 8: DRAWINGS, PARTS LISTS AND EXPLODED VIEWS 8.10 Dimensional Drawing Artisan Technology Group - Quality Instrumentation ... Guaranteed | (888) 88-SOURCE | www.artisantg.com... -
Page 23: Schematic Wiring Diagram For Models 2025 And 2026
8.11 Schematic Wiring Diagram for Models 2025 & 2026 Artisan Technology Group - Quality Instrumentation ... Guaranteed | (888) 88-SOURCE | www.artisantg.com... -
Page 24: Schematic Wiring Diagram For Model 2027
8.12 Schematic Wiring Diagram for Model 2027 Artisan Technology Group - Quality Instrumentation ... Guaranteed | (888) 88-SOURCE | www.artisantg.com... - Page 25 8.13 Parts List & Exploded View for Dry Vacuum System PART SERVICE KIT ITEM NUMBER DESCRIPTION 2025K-06* See Note 1 Hose Clamp 5/16" See Note 1 Hose Clamp 1/8" 0.35 Ft See Note 1 Tubing, Fluoroelastomer 0.35 Ft 1.60 Ft See Note 1 Tubing, Blended 1.60 Ft...
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Page 26: Parts List And Exploded View For Repair Kits
8.14 Parts List & Exploded View for Repair Kits Repair Kit 2025K-01 (for Model: 2025) Repair Kit 2027K-01 (for Models: 2026 & 2027) Artisan Technology Group - Quality Instrumentation ... Guaranteed | (888) 88-SOURCE | www.artisantg.com... - Page 27 Repair Kit 2047K-01 (for Model: 2028) Notes: __________________________________________________________________________________________ __________________________________________________________________________________________ __________________________________________________________________________________________ __________________________________________________________________________________________ __________________________________________________________________________________________ __________________________________________________________________________________________ __________________________________________________________________________________________ __________________________________________________________________________________________ __________________________________________________________________________________________ __________________________________________________________________________________________ __________________________________________________________________________________________ Artisan Technology Group - Quality Instrumentation ... Guaranteed | (888) 88-SOURCE | www.artisantg.com...
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Page 28: Section 09 - Warranty
The method of executing this warranty: servicing, adjusting, repairing or replacing shall be at the discretion of Gardner Denver Welch Vacuum Technology . Vacuum pumps that have been used for any period, however short, will be repaired under this warranty rather than replaced. - Page 29 Phone: (847) 676-8800 Fax: (847) 677-8606 (Technical Support) Fax: (920) 451-4397 (Ordering) Copyright© 1997-2004 Gardner Denver Welch Vacuum Technology, Inc. Welch is registered trademarks of Gardner Denver Artisan Technology Group - Quality Instrumentation ... Guaranteed | (888) 88-SOURCE | www.artisantg.com...
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