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Table of Contents
Related Manuals for Thermo Scientific 420-1901
Summary of Contents for Thermo Scientific 420-1901
- Page 1 OPERATING MANUAL AIR CADET PUMPS ® MODEL NO. 420-1901 MODEL NO. 420-1902 A-1299-5102 Edition 03 Thermo Fisher Scientific 1-800-637-3739 (U.S. and Canada only) 11 (847) 381-7050 (Outside U.S.) • (847) 381-7050 (Local) www.thermo.com • fluidhandling@thermofisher.com...
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Page 3: Table Of Contents
OPERATING INSTRUCTIONS ....... . . 5 Grounding Instructions (420-1901) ......6 Grounding Instructions (420-1902) . -
Page 4: Safety Precautions
SAFETY PRECAUTIONS DANGER: Improper use of grounding plug can result in a risk of electric shock. DANGER: Unplug power cord before any cleaning operation is started. WARNING: Gas under pressure should not be used for supply as a haz- ardous bursting condition could develop in the pump head. Use only gases contained at atmospheric pressure. -
Page 5: Description
The polyethylene fittings provided with the pump will accept 3/8 in I.D. flex- ible tubing. Figure 1 shows the typical flow characteristics of the 420-1901 pump as related to pressure and vacuum. The corresponding flow data for the 420-1902 Pump (230V AC) are 5/6 of those in Figure 1. -
Page 6: Grounding Instructions (420-1901)
FIGURE 1 GROUNDING INSTRUCTIONS FOR 420-1901 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. This product is equipped with a cord having a grounding wire with an appropriate grounding plug. -
Page 7: Grounding Instructions (420-1902)
which looks like the adapter illustrated in Figure 2(B) and (C) may be used to connect this plug to a 2-pole receptacle as shown in Figure 2(B) if a properly grounded outlet is not available. The temporary adapter should be used only until a properly grounded outlet, Figure 2(A), can be installed by a qualified electrician. - Page 8 Operation Wrap the PTFE sealing tape supplied around the fitting thread (to eliminate any possible leakage) and assemble into the port. DO NOT OVERTIGHTEN! Use only a single turn of tape—hand tighten—then give one more turn with a wrench. Instead of the standard fittings supplied with the pump, any other appropriate system can be attached to the pump.
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Page 10: Specifications
SPECIFICATIONS (CONT.) Models 420-1901, and 420-1902 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:... -
Page 11: Maintenance
MAINTENANCE DANGER: Unplug power cord before any cleaning operation is started. For diaphragm replacement, disassemble top part of the Pump Head. Then unscrew the diaphragm and install the new diaphragm. Reassemble the Pump Head. It is good practice to replace the Pump Head when the diaphragm is replaced. -
Page 12: Warranty
TECHNICAL ASSISTANCE If you have any questions about the use of this product, contact the Manufacturer or authorized seller. Thermo Fisher Scientific 1-800-637-3739 (U.S. and Canada only) 11 (847) 381-7050 (Outside U.S.) (847) 381-7050 (Local) www.thermo.com...