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WESTCON AC Tachometer Generators

WESTCON AC Tachometer Generators
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DC Tachometer-Generators The model 750 DC Tachometer-Genera tor embodies a permanent magnet f ield surrounding a rota t ing arma t ure. The commu ta tor segment s are made from a special non-corrosive alloy which has an except ionally long life. The brushes are of a sel f-lubrica t ing ma terial and are carried in a sel f-aligning holder which equalizes the pres- Base Mounting model 750, Type A Base Mounting Model 750 Type A Screw Mounting model 750, Type J2 • Rigid die-cast aluminum housing • Base mounted tachometer • 3/8” drive shaft for direct coupling to a pulley or a spur gear •1.0 oz-in torque Catalog No. Screw Mounting Model 750 Type J2 750-9906000 Type M2 Same as J2 except reduced torque to 1.0 oz-in 750-9906001 Type J2R Same as J2 except internal resistance is 200 ohms 750-9906002 S.A.E. 7/8 Screw Mounting Pad Mounting model 750, Type K3 • 3/16” spring drive shaft • Standard S.A.E. 7/8” screw type mounting • 3.0 oz-in starting torque • Mainly used on Diesel and Gas engines Pad Mounting Model 750 Type K3 Type K30 Same as the K3 but with a 3/16” drive shaft • Square Pad Mounting • ¼” square drive shaft • 3.0 oz-in starting torque

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sure of both brushes . The arma t ure shaf t rota tes on ball bearings which under normal opera t ion do not need lubrica t ion for 15,000 hours running t ime or approxima tely 3 years , whichever comes f irst . Maximum recommended speed is 5,000 rpm. Brush life is grea test a t the lower speeds . Splash-Proof Splash-Proof Model 750 Type W • Heavy-duty cast iron housing • Sealed for water wash down area’s • Base mounted tachometer • ½ NPT conduit junction box included • ¾” Diameter drive shaft supported by heavy duty ball bearings • 2.0 oz-in starting torque Explosion-Proof Explosion-Proof...

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AC Tachometer-Generators The 758 Series of tachometers are used in low maintenance applicat ion requirement s . The 758 model embodies a sta tor surrounding a rota t ing AlNICO permanent magnet . The ou t pu t of the genera tor for voltage responsive systems is tempera t ure compensa ted and is propor t ional to the speed. The ball bearings need not be lubrica ted Base Mounting model 758, Type AB Base Mounting Model 758 Type AB Type ABF Same as the AB but Frequency Responsive System Screw Mounting model 758, Type JB2 • ½” diameter drive shaft • Base mounted configuration • 2.5 oz-in...

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under normal opera t ion for 15,000 hours running t ime or approxima tely three years , whichever comes f irst . Maximum recommended speed is 5,000 rpm, bu t may be used up to 10,000 rpms under spe cial condi t ions . Splash-Proof Splash-Proof Model 758 Type W For Voltage-Responsive Systems Type WF For Frequency-Responsive Systems • Heavy-duty cast-iron base-mounting type housing • ¾” diameter drive shaft supported by heavy duty ball bearings • Conduit junction box with ½ NPT opening • Designed for locations which are subject to mechanical abuse or water spray • 3.0 oz-in starting torque...

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Bearingless AC Generators “Pot ted” Models . Uni t s are available wi th the sta tor windings encapsula ted wi th an epoxy ma terial for grea ter protect ion. These are designed wi th the let ter ”P” in the t ype number Model 758 Type XF86 Type XPF86 Type XF44 Type XPF44 • Rotor Style 6 • 500-20,000 RPMs • No Housing • Stator Resistance 32 ohms Model 758 Type GF86 Type GPF86 Type GF44 Type GPF44 Rotor Installation Rotor Style 6 500-20,000 RPMs Cast Iron Housing Stator Resistance 32 ohms METHOD 1 NON-MAGNETIC SPACER* NON-MAGNETIC WASHER* MOUNTING SCREW* The rotor of the genera tor uni t...

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Binding Post Conduit Box Model 750 Types J2, J2R, M2 and K3 Binding Post Conduit Box model J2, J2R, M2 and K3 1.08" Provides protection for the terminals, and has a ½ NPT connection for conduit. Binding Post Conduit Box Model 758 Types AB, JB2 and KB3 • Provides protection for terminals, and has a ½ NPT connection for conduit Replacement Brush Kit Catalog No. Use with all Model 750 Tachometers 249302-901 Metallic leaf brushes are of an alloy which will wear before the commu ta tor bars . Brush replace ment is a simple f ield opera t ion.

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IMPORTANT NOTICE Our recommenda t ions , if any, for the use of this product are based on test s believed to be reliable. The grea test care is exercised in the select ion of our raw ma terials and in our manufact uring opera t ions . However, since the use of this product is beyond the cont rol of the manufact urer, no guarantee or warrant y, express or implied is made as to such use or ef fect s incidental to such use, handling or possession or the result s to be obtained, wether in accordance wi th the direct ions or claimed so to be. The manufact urer expressly disclaims responsibili t...

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