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VACUUM/PRESSURE STATION
Thermo Fisher Scientific
1-800-637-3739 (U.S. and Canada only)
11 (847) 381-7050 (Outside U.S.) • (847) 381-7050 (Local)
www.thermoscientific.com • fluidhandling@thermoscientific.com
OPERATING MANUAL
MODEL NO. 420-3901 (115V AC)
MODEL NO. 420-3902 (230V AC)
A-1299-5105
Edition 05
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Summary of Contents for Thermo Scientific Air Cadet
- Page 1 OPERATING MANUAL VACUUM/PRESSURE STATION MODEL NO. 420-3901 (115V AC) MODEL NO. 420-3902 (230V AC) A-1299-5105 Edition 05 Thermo Fisher Scientific 1-800-637-3739 (U.S. and Canada only) 11 (847) 381-7050 (Outside U.S.) • (847) 381-7050 (Local) www.thermoscientific.com • fluidhandling@thermoscientific.com...
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Page 3: Table Of Contents
TABLE OF CONTENTS Title Page SAFETY PRECAUTIONS ........4 DESCRIPTION . -
Page 4: Safety Precautions
Pump Head. Use only gases contained at atmospheric pressure. CAUTION: Do not operate pump when pressure ports of both heads are in a blocked condition. CAUTION: Do not use metal fittings with any Air Cadet Pump. -
Page 5: Description
DESCRIPTION The Vacuum/Pressure Station is designed to provide a convenient, portable source of regulated vacuum and/or pressure for bench-top laboratory or commercial use. Each function is regulated independently by clearly identified valves and the easy-to-read compound function gauge eliminates the need for an elaborate plumbing network. The convoluted diaphragm and the unique head cavity of the pump are designed to provide extended diaphragm life by minimizing stress, wear and heat buildup. -
Page 6: Operating Instructions
FIGURE 1 OPERATING INSTRUCTIONS The pump supplied with the Vacuum/Pressure Station must always be plugged into a grounded outlet. Both models are supplied complete with a grounded plug and an on-off rocker switch. Grounding Instructions This product should be grounded. In the event of an electrical short circuit, grounding reduces the risk of electric shock by providing an escape wire for the electric current. - Page 7 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 with or without yellow stripes is the ground- ing wire.
- Page 8 Extension Cords Use only a 3-wire extension cord that has a 3-blade grounding plug and a 3-slot receptacle that will accept the plug on the product. Make sure your extension cord is in good condition. When using an extension cord, be sure to use one heavy enough to carry the current your product will draw.
- Page 9 When the pump is not in use, store in a clean, dry area. If ports on pump are open, cover to keep dust and dirt from entering. Wipe power cord down with dry towel and inspect for cracks in insulation after each use. Have cord repaired, if found defective, prior to reusing.
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Page 11: Specifications
SPECIFICATIONS (CONT.) Models 420-3901 and 420-3902 Operating Temperature Range: 0° to 40° C (32° to 104° F) Humidity Range: 10% to 90% non-condensing Altitude: Less than 2000 m Pollution Degree: Pollution Degree 2 (Indoor usage - lab, office) Enclosure Rating: IP 20 per IEC 60529 Weight: 4.1 kg (9 lbs) - Page 12 The regulation valves should be occasionally inspected for contamination (frequency depends upon the application) by removing the adjustment screw, spring and ball from each valve body—see Figure 4. Look for dirt or grit around the venting holes in the adjustment screw and the valve body and around the valve seating surfaces.
- Page 13 FIGURE 4...
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Page 14: Replacement Parts List
REPLACEMENT PARTS LIST Item Part No. Vacuum regulation valve assembly B-2067-CR Pressure regulation valve assembly B-2066-CR Manifold Chamber Assy (with valves) D-1819 Vacuum/Pressure gauge B-2898 PUMP HEAD REPLACEMENT PARTS LIST Item Part No. Service Kit (Reinforced FKM diaphragm, 420-9005 two retainers, two valves and plastic head) Service Kit Replacement 420-9004 DACRON-reinforced FKM diaphragm... -
Page 15: Warranty
WARRANTY This product is warranted against defects in material or workmanship, and at the option of the manufacturer or distributor, any defective product will be repaired or replaced at no charge, or the purchase price will be refunded to the purchaser, provided that: (a) the warranty claim is made in writing within the period of time specified on this warranty card, (b) proof of purchase by bill of sale or receipted invoice is submitted concurrently with the claim and shows that the product is... - Page 16 Thermo Fisher Scientific 1-800-637-3739 (U.S. and Canada only) 11 (847) 381-7050 (Outside U.S.) (847) 381-7050 (Local) www.thermoscientific.com fluidhandling@thermoscientific.com Printed in U.S.A.
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