background image

 

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.

 

 

 

All programs are quickly accessible in VENT mode by pressing the numeric keypad for each 

 

 

 

program number.

 

 

 

Example:

 

 

 

 

 

Keypad # 

 

 

 

Program #

     

 

 

 

 

 

0        

 

 

Repeat Previous Setting

 

 

 

 

 

 

1  

 

 

 

 

1

 

 

 

 

 

 

2  

 

 

 

 

2

 

 

 

 

 

 

3  

 

 

 

 

 

 

 

 

 

 

4  

 

 

 

 

4

 

 

 

 

 

 

5  

 

 

 

 

 

 

 

Note:   Press the ENTER button to run the selected program

 

MANUAL MODE

 

 

 

Press MANUAL  button to enter MANUAL  mode

 

 

 

MANUAL mode gives you full control of the vacuum setting by manually opening/closing the 

 

 

 

variable valve with each turn of the Vacuum Control knob. The linear bar graph displays the valve

  

 

 

position.  Push the Vacuum Control knob to lock in your desired vacuum setting and switch  to 

 

 

 

AUTO mode. AUTO mode will display the exact vacuum setting and allow you to use all AUTO 

 

 

 

mode functions.

 

 

 

Note:   MANUAL mode defaults to the valve open (vent) position when pressed except when in 

 

 

 

 

MAXIMUM VACUUM mode where 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. Once 

 

 

 

the initial value has been entered the Up/Down arrows, Numeric Keypad and the Vacuum Control

 

 

  

knob will all allow precise vacuum control in AUTO mode. The only exception is when the users 

 

 

 

switches from MANUAL mode to AUTO by pushing the Vacuum Control knob 

 

 

 

(see MANUAL mode). 

 

MAXIMUM VACUUM MODE

 

 

 

Press MAXIMUM VACUUM button to enter MAXIMUM VACUUM mode

 

 

 

MAXIMUM VACUUM mode closes the valve and sets the pump to the maximum vacuum level. 

 

 

 

To adjust the vacuum level in MAXIMUM VACUUM mode you can press the MANUAL mode 

 

 

 

button and use Vacuum Control knob to open/close the variable valve (see manual mode) or press 

 

 

 

the Anti-BUMPING/FOAMING button to decrease the vacuum level by several torr. 

 

 

 

Note:   Selecting MANUAL mode while in MAXIMUM VACUUM sets the unit in MANUAL 

 

 

 

 

mode with the valve in the closed (maximum vacuum) position.

12

Artisan Technology Group - Quality Instrumentation ... Guaranteed | (888) 88-SOURCE | www.artisantg.com

Содержание Welch Self-Cleaning Dry Vacuum System DryFast...

Страница 1: ...s 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...

Страница 2: ...y 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...

Страница 3: ...truction could result in damage to the equipment associated equipment and process These units con rm to the SI International system of units of measurement The following symbols with recommendation of...

Страница 4: ...ral Maintenance Section 05 Calibration 5 10 Calibration for Model 2027 only Section 06 Troubleshooting 6 10 Vacuum Problems Section 07 Speci cation 7 10 Pump Speci cation Table Section 08 Drawings Par...

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 Por...

Страница 6: ...nding 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...

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 ele...

Страница 8: ...s 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 g...

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 n...

Страница 10: ...ll 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 fro...

Страница 11: ...o 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 of ce See country directory on back cover o...

Страница 12: ...can be made out of readily available material for protecting the pump The trap would consist of a ltering ask placed between the pump and the vacuum chamber The simple liquid trap will act as a buffe...

Страница 13: ...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...

Страница 14: ...l 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 Contr...

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 uni...

Страница 16: ...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...

Страница 17: ...d place over both pins See gure 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 ash SE...

Страница 18: ...um 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 pum...

Страница 19: ...el 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...

Страница 20: ...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 ja...

Страница 21: ...ump 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 Functio...

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: ...ing 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 Re...

Страница 26: ...ts 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 artis...

Страница 27: ...______________________________ __________________________________________________________________________________________ ______________________________________________________________________________...

Страница 28: ...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 produ...

Страница 29: ...kie 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 De...

Страница 30: ...uipment 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 documentat...

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