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Section 8: DRAWINGS, PARTS LISTS AND EXPLODED VIEWS

8.10 Dimensional Drawing

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Содержание Welch Self-Cleaning Dry Vacuum System DryFast 2025

Страница 1: ...ss underutilized and idle equipment along with credit for buybacks and trade ins Custom engineering so your equipment works exactly as you specify Critical and expedited services Leasing Rentals Demos In stock Ready to ship TAR certified secure asset solutions Expert team I Trust guarantee I 100 satisfaction All trademarks brand names and brands appearing herein are the property of their respectiv...

Страница 2: ...fy intake and discharge before using pump See Section 2 28 CAUTION Do not pump liquids with the pump Pumping liquids will cause the pump to stop working 2025 2027 2028 9 Torr 12 mbar 2 Torr 2 7 mbar 2 Torr 2 7 mbar 2026 2 Torr 2 7 mbar Improved to better meet your laboratory needs New electronics with an enhanced self cleaning feature to help extend diaphragm life Superior vacuum level regulator f...

Страница 3: ...struction 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 WARNING Motor includes a self resetting thermal cutout and t...

Страница 4: ...eral Maintenance Section 05 Calibration 5 10 Calibration for Model 2027 only Section 06 Troubleshooting 6 10 Vacuum Problems Section 07 Speciﬁcation 7 10 Pump Speciﬁcation Table Section 08 Drawings Parts List and Exploded View 8 10 Dimensional Drawing 8 11 Schematic Wiring Diagram for Models 2025 and 2026 8 12 Schematic Wiring Diagram for Model 2027 8 13 Parts List and Exploded View for Dry Vacuum...

Страница 5: ...id serious burns never touch unit during or immediately after operation 1 18 Be sure to properly identify intake and discharge before using pump See Section 2 14 WARNING Remove plug s from Exhaust Port s The Self cleaning Dry Vacuum System has one outlet port and one inlet port The ports are labeled 1 20 CAUTION To reduce risk of electrical shock 1 21 Do not disassemble Disassembly or attempted re...

Страница 6: ...ounding 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 The pump should be located as closely to its system in order to utilize it most efﬁciently WARNING Don t operate this pump in an atmosphere containing ﬂammable or explosive gases or vapors WARNING The motor is thermally protected and will...

Страница 7: ... must be plugged into an outlet that is properly installed and grounded in accordance with all local codes and ordinances DANGER Improper installation of the grounding plug can result in a risk of electrical shock If repair or replacement of the cord or plug is necessary do not connect the grounding wire to either ﬂat blade terminal The wire with insulation having an outer surface that is green wi...

Страница 8: ...is located in the top front section of the system The dial vacuum gauge is commonly used to indicate vacuum level when operating in the rough vacuum range 2 torr 2 7mbar 29 8 in Hg Dial vacuum gauges give negative pressure that is pressure below atmospheric The reference point for the gauges is atmospheric pressure Please keep in mind that atmospheric pressure tends to vary from day to day As a re...

Страница 9: ...ballast or vent switch acts to minimize vapor condensation when pumping heavy vapor loads In a pump functioning on an apparatus with a high vapor load compression within the pump takes place in the normal manner until the saturation pressure of gas and vapor is reached causing the vapor to condense in the pump mechanism When air at atmospheric pressure is supplied to the compression stoke by means...

Страница 10: ...ill shut off allowing the unit to vent to atmospheric pressure The outlet separator catches any liquid or particulates during the purge cycle To adjust the purge cycle time on Models 2025 2026 2027 from 2 minutes to 2 5 3 0 or 3 5 minutes unplug the pump remove the base panel at the bottom of the pump and adjust the delay in minutes switch SW2 to the desired setting as indicated in table below Dia...

Страница 11: ...to freeze out most heavy water vapor loads 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 2 32 The Care of a Liquid Trap A liquid trap needs no refrigerant The key maintenance issue when pumping high vapor loads is to regularly drain the t...

Страница 12: ...p can be made out of readily available material for protecting the pump The trap would consist of a ﬁltering ﬂask placed between the pump and the vacuum chamber The simple liquid trap will act as a buffer for the inlet separator connected to the Self Cleaning Dry Vacuum System 3 13 Leak Detection The importance of eliminating all leaks in a vacuum system is obvious The pump must remove this added ...

Страница 13: ...e the valve will be in the closed max vac position AUTO MODE Press AUTO button or Vacuum Control knob in MANUAL mode to enter AUTO mode AUTO mode gives you precise control of the vacuum setting via Up Down arrows Numeric Keypad and the Vacuum Control knob The bottom right of the display shows the set vacuum setting The initial vacuum setting must be set via the numeric key pad and enter button Onc...

Страница 14: ...ol knob to scroll to the Program option and press to enter the Program menu screen The Program screen displays all existing stored programs in desired vacuum units and time minutes Use the Vacuum Control knob to scroll up and down and press the Vacuum Control knob to enter your selection If the memory location is empty the following screen will appear Enter the values requested ﬁrst vacuum setting...

Страница 15: ... and display the current units setting with an asterisk Use the Vacuum Control knob to select the desired units and push the Vacuum Control knob to change The screen will now display the new vacuum units Use the Vacuum Control knob to select Exit or Back to make additional changes from the Setup screen 2 SET CLEANING TIME Use the Vacuum Control knob to select the Set Cleaning Time option to change...

Страница 16: ...e the Vacuum Control knob to select Exit or Back to make additional changes from the Setup screen 4 ABOUT Use the Vacuum Control knob to select the About option The About option lists the product model version and contact information Section 4 MAINTENACE 4 10 General Maintenance Welch dry vacuum units are 100 oil free The pump employs a diaphragm with uninterrupted Teﬂon coating No maintenance is ...

Страница 17: ...d place over both pins See ﬁgure calibration mode below Step 4 Attach gauge to inlet of pump Step 5 Re apply power to the unit CAUTION Unit will start up as soon as power is applied Display will ﬂash SEt CAL WARNING Unit is power be careful when removing calibration jumper Step 6 Step 6 When external gauge shows 2 Torr or less remove the jumper The unit will either go into purge cycle or normal op...

Страница 18: ...uum Note Pump Cannot Start Under Vacuum Turn off and UNPLUG PUMP remove top housing and turn fan a few times Replace cover and turn on if problem still persists contact Welch Technical Support Turn pump off disconnect from application restart pump Check vacuum pressure of 2027xx with external vac gauge attached to pump inlet fitting If external vac gauge pressure is different than unit s display b...

Страница 19: ...vel around 30 40 Torr indicates bad exh stage valve or diaphragm Bad valve or diaphragm Change Valve Diaphragm Loose eccentric or counterweight Tighten Loose Parts Use Loctite Broken diaphragm threaded insert Change Diaphragm Bad Con Rod bearing or motor bearing Change Con Rod Broken motor shaft Change Shaft Loose housing cover Tighten housing screws on back of unit Slide rail loose remove housing...

Страница 20: ...p off and UNPLUG PUMP wait 30 seconds re connect to power and turn pump back on Digital gauge Displays CAL Err Unit has detected a calibration error Mechanical Failures Poor Vacuum Leaks Check inlet jar for leaks Check inner gasket and fittings tighten if loose Disconnect pump from system block off inlet port check vacuum level on the gauge If vacuum level reading is good work back through your ap...

Страница 21: ...Bump Anti Foam Button N A N A N A YES Tubing needed I D in mm 1 4 7 1 4 7 1 4 7 1 4 7 Intake Exhaust Thread NPT 3 8 3 8 3 8 3 8 Weight lbs Kg 30 13 6 30 13 6 30 13 6 30 13 6 Programmable Repeat Function N A N A N A YES Store Programs N A N A N A up to 5 Timer N A N A N A 1 999 min Overall Dimensions L in cm 13 6 42 2 13 6 42 2 13 6 42 2 13 6 42 2 W in cm 12 30 5 12 30 5 12 30 5 12 30 5 H in cm 11 ...

Страница 22: ...Section 8 DRAWINGS PARTS LISTS AND EXPLODED VIEWS 8 10 Dimensional Drawing 21 Artisan Technology Group Quality Instrumentation Guaranteed 888 88 SOURCE www artisantg com ...

Страница 23: ...8 11 Schematic Wiring Diagram for Models 2025 2026 22 Artisan Technology Group Quality Instrumentation Guaranteed 888 88 SOURCE www artisantg com ...

Страница 24: ...8 12 Schematic Wiring Diagram for Model 2027 23 Artisan Technology Group Quality Instrumentation Guaranteed 888 88 SOURCE www artisantg com ...

Страница 25: ...bing PTFE Duality 1 30 Ft 6 1 See Note 1 Gasket 1 7 1 See Note 1 U Clamp 1 8 1 726123 Vacuum Gauge 2 Dial mbar kPa 8 1 726125 Vacuum Gauge 2 Dial in Hg cm hg 9 2 1423B Glass Jarr Assembly 10 2 1415B Replacement Glass Jarr Note 1 These parts are not available seperately but they are supplied in the 2025K 06 Service Kit 67 0994 Sheet 2 of 2 Rev 10 06 03 for Models 2025 2026 2027 2028 with S N ECO913...

Страница 26: ...rts List Exploded View for Repair Kits Repair Kit 2025K 01 for Model 2025 Repair Kit 2027K 01 for Models 2026 2027 25 Artisan Technology Group Quality Instrumentation Guaranteed 888 88 SOURCE www artisantg com ...

Страница 27: ..._______________________________ __________________________________________________________________________________________ __________________________________________________________________________________________ __________________________________________________________________________________________ __________________________________________________________________________________________ ____...

Страница 28: ...t 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 defectiv...

Страница 29: ...okie IL 60077 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 ...

Страница 30: ...quipment Have surplus equipment taking up shelf space We ll give it a new home Learn more Visit us at artisantg com for more info on price quotes drivers technical specifications manuals and documentation Artisan Scientific Corporation dba Artisan Technology Group is not an affiliate representative or authorized distributor for any manufacturer listed herein We re here to make your life easier How...

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