background image

6

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. The plug must be
plugged into an outlet that is properly installed and grounded in accordance
with all local codes and ordinances.

DANGER:

Improper use of grounding plug can result in a risk of electric
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 with or without yellow stripes is the ground-
ing wire. Check with a qualified electrician or serviceman if the grounding
instructions are not completely understood, or if in doubt as to whether the
product is properly grounded. Do not modify the plug provided; if it will not
fit the outlet, have the proper outlet installed by a qualified electrician.

This product is for use on a nominal 120 volt circuit and has a grounding
plug that looks like the plug illustrated in Figure 2(A). A temporary adapter,

FIGURE 1

Содержание 420-1901

Страница 1: ...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 ...

Страница 2: ...2 ...

Страница 3: ... MAINTENANCE 11 PUMP HEAD REPLACEMENT PARTS LIST 11 SPECIAL APPLICATIONS 11 NOTE 11 WARRANTY 12 PRODUCT RETURN 12 TECHNICAL ASSISTANCE 12 FLUOREL Reg TM Minnesota Mining and Manufacturing Company VALOX Reg TM General Electric Co DACRON VITON Reg TM E I DuPont de Nemours and Co Trademarks bearing the symbol in this publication are registered in the U S and in other countries ...

Страница 4: ...ng 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 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 ...

Страница 5: ...six foot length three conductor power supply cord is supplied with the unit and the 115V AC rated motor is a U L recognized component 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...

Страница 6: ...ectric 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 with or without yellow stripes is the ground ing wire Check with a qualified electrician or serviceman if the grounding instructions are not completely understood or if in doubt as to whether the produc...

Страница 7: ...S FOR 420 1902 Refer to a qualified electrician to install the proper plug on the motor cord and to supply the proper electrical outlet 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 c...

Страница 8: ...den changes in the diameter of system tubes fittings bends and other obstructions will increase pressure and or vacuum in the system and will decrease the available flow Intentional reduction in flow can be achieved by a simple valve or pinching of the tube at inlet preferred for the diaphragm life or outlet systems WARNING Gas under pressure should not be used for supply as a hazardous bursting c...

Страница 9: ...3 Inches Hg Motor 1 50 hp at 1550 rpm 1 50 hp at 1300 rpm Pump Motor Dimensions 8 in L x 4 in W x 4 25 in H 8 in L x 4 in W x 4 25 in H Motor Dimensions 5 25 in L x 4 in W x 4 25 in H 5 25 in L x 4 in W x 4 25 in H Port Connections 3 8 NPT 3 8 NPT Intermittent Duty Limit output to 21 psig Continuous Duty Limit output to 18 psig Intermittent or Continuous Duty Polyethylene fittings not included in ...

Страница 10: ... 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 2 7 kg 6 lbs Compliance 115V UL1450 CSA C22 2 No 68 230V For CE Mark EN61010 1 EU Low Voltage Directive and EN61326 EU EMC Directive ...

Страница 11: ...n cleaning the pump PUMP HEAD REPLACEMENT PARTS LIST Item Part No Service Kit Reinforced FLUOREL diaphragm 420 9005 two retainers two valves and plastic head Service Kit Replacement 420 9004 DACRON reinforced VITON diaphragm Service Kit Eccentric Assembly 7530 75 Service Kit Housing 7530 78 Service Kit Diaphragm Shaft 7530 79 Service Kit Cover Bottom 7530 83 Pump Head Assembly VALOX 7530 77 SPECIA...

Страница 12: ...on or modification or b post expiration dated materials THIS WARRANTY IS THE EXCLUSIVE REMEDY OF THE PURCHASER AND THE MANUFACTURER AND DISTRIBUTOR DISCLAIM ALL OTHER WARRANTIES WHETHER EXPRESS IMPLIED OR STATUTORY INCLUDING WITHOUT LIMITATION WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE NO EMPLOYEE AGENT OR REPRESENTATIVE OF THE MANUFACTURER OR DISTRIBUTOR IS AUTHORIZED TO B...

Отзывы: