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 Instrument Meter Specialties, Inc
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Tachometer- Generators
DC Tachometer- Generators
     The Model 750 embodies a permanent magnet field surrounding a rotating armature. The commutator segments are made from a special non-corrosive alloy which has an exceptionally long life.  The brushes are of a self-lubricating material and are carried in a self-aligning holder which equalizes the pressure of both brushes.  The armature shaft rotates rotates on ball bearings which under normal operation do not need lubrication for 15,000 hours, or 3 years, whichever comes first. Maximum recommended speed is 5,000 rpm.  Brush life is greatest at lower speeds.

Base Mounting Model 750
Type A

Pad Mounting Model 750
Type K3

Screw Mounting Model 750 Type J2

Splash Proof Model 750
Type W

Explosion Proof  (UL) Model 750, Type E

AC Tachometer-Generators
    The 758 Series of tachometers all use a multi-pole cylindrical magnet turning in a wound stator, constructed from quality transformer iron laminations. Single phase output current is a sine wave over the speed range of the tachometer.  These units have 100 ohm stators and are intended for voltage responsive systems.  When greater accuracy is required, use a tachometer with a 32 ohm stator (designated  F in the type number) and a frequency responsive indicating system.  For speeds over 5,000 rpm, use the bearing- less AC generators.

Base Mounting Model 758 Type AB

Screw Mounting Model 758 
Type JB2

Pad Mounting Model 758 
Type KB3

Splash Proof Model 758
Type W

Explosion Proof (UL) Model 758, Type E

Bearingless AC Generators

 

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          Glendale, CA 91201 USA