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2.20   Electrical Power
2.21    Power Source Review

 

Review the power source and the voltage rating on the units serial number tag to be sure they agree in 

 

voltage, phase and frequency.  Serious damage may occur to the system if it is connected to an improper 

 

voltage.  All Welch systems must be grounded.  Grounding reduces the risk of electric shock in the event 

 

of an electrical short circuit.  The plug must be plugged into an outlet properly grounded.  Consult your 

 

local electrical codes if you have doubts.

2.22 

Overload Protection

 

The motor manufacturer makes motor thermal overload protection availeble as an aid to minimize motor

  

failure. Overload protection is a standard feature on both 50/60Hz single-phase motors. The motors have

  

automatic overload protection. Automatic reset protection is designed to reset itself after a 

 

predetermined cooling period. If the fault to the drive remains unaltered, the motor will cycle on and off  

 

until fault is corrected.

2.23 

Identifi cation Symbols

 
 
 
 
 
2.24 

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.  This product is equipped with a 

 

cord having a grounding wire with a grounding plug.  The plug must be plugged into an outlet that is 

 

properly installed and grounded in accordance with all local codes and ordinances.

 

This adapter shown in Figure B and Figure C is not acceptable in Canada.

 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 

 

If repair or replacement of the cord or plug is necessary, do not connect the grounding wire to either fl at

 

blade terminal.  The wire with insulation having an outer surface that is green with or without yellow 

 

stripes is the grounding wire.

 

Check with a qualifi ed 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 fi t the outlet, have the proper outlet installed by a qualifi ed electrician.

DANGER

Improper installation of the grounding plug

can result in a risk of electrical shock. 

Содержание Welch 2580B-01

Страница 1: ...0B 50 2580C 50 2585C 02 2585C 05 2585C 50 2585C 55 2585C 57 Warning Not recommended for pumping acid base or organic vapors or gases Warning Be sure to properly identify intake and discharge before us...

Страница 2: ...ons are found where failure to observe the instruction could result in damage to the equipment associated equipment and process These units con rm to the SI International system of units of measuremen...

Страница 3: ...ions 3 01 Speci cation Chart Section 04 Motor Power Speci cations Features 4 01 Motor Speci cation Chart 4 02 Changing the Voltage Settings for Global Motor Option on A Models 4 03 Changing the Voltag...

Страница 4: ...ion II 5 I 20 CAUTION To reduce risk of electrical shock I 21 Do not disassemble Disassembly or attempted repairs if accomplished incorrectly can create electrical shock hazard Refer servicing to qual...

Страница 5: ...or indirect moisture contact The pump should be located as closely to its system in order to utilize it most e ciently The pump is rated for indoor use only Maximum altitude 2000 meters Operating tem...

Страница 6: ...rrected 2 23 Identi cation Symbols 2 24 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...

Страница 7: ...monly used to indicate vacuum level when operating in the rough vacuum range 0 to 29 9 Hg Dial vacuum gauges give negative pressure that is pressure below atmospheric The reference point for the gauge...

Страница 8: ...s if you have droplets coming out of the exhaust port If you see droplets of water Welch recommends you use a cold trap to capture the water before entering the pump or dilute the water vapor stream b...

Страница 9: ...suspected area with a thick soap solution Escaping air will produce soap bubbles 3 14 Operating Pressure Range Model 2581 Dry Vacuum Pumps are designed to be run from atmospheric to their maximum vacu...

Страница 10: ...n for the condition of the pump is the determination of its maximum vacuum capability This can be accomplished by blocking of the intake and reading the vacuum level on the gauge See Section 2 8 5 11...

Страница 11: ...30 5 12 0 30 5 Shipping Weight lbs 27 5 27 5 Kg 12 5 12 5 Shipping Dimensions L in Inches cm 19 5 49 5 19 5 49 5 W in Inches cm 20 5 52 0 20 5 52 0 H in Inches cm 16 0 40 6 16 0 40 6 Catalog Number C...

Страница 12: ...12 6 11 Pumping Speed Curves...

Страница 13: ...13 6 12 Dimensional Drawing Dimensions of Pump Model 2580 2585 inches A B C D E F G H I J K L M N 12 5 11 69 7 37 5 25 10 5 8 5 9 5 8 75 3 06 0 75 4 62 0 75 4 5 6...

Страница 14: ...0K 04 1 2 Note 1 Connecting Rod Assembly 2 2 2 Note 1 O Ring Valve Plate 2 2 3 2 Note 1 O Ring Connector Tube 4 4 4 1 Note 1 Head Screw 8 5 2 Note 1 Rubber Suction Feet 4 6 2 Note 1 Valve Plate Assemb...

Страница 15: ...maximum vacuum readings from day to day The preset vacuum level may be adjusted by opening or closing the ori ce A small leak through the ori ce is provided to allow easy restart of the pump if you a...

Страница 16: ...erative No other warranties are expressed or implied The method of executing this warranty servicing adjusting repairing or replacing shall be at the discretion of Gardner Denver Welch Vacuum Technolo...

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