6M-11M Series

The National Time & Signal 6MR-11MR Series clock mechanisms employ the exclusive worm-gear drive technology on a much larger scale. These mechanisms are driven by a permanent magnet, 115V 50Hz or 60Hz synchronous gear motor. These mechanisms offer mounting options to suit all applications with dial sizes up to 22’ diameter.

Features

  • Dial sizes to 22’

  • Rugged box construction

  • Available with collector rings to power LED lit hands

  • Vertical and horizontal mounting capabilities

  • UL Listed

  • Manufactured in the U.S.A.

Variations

  • 6MR-11MR

    The MR synchronous versions keep time using the 60Hz power line. The synchronized motor provides smooth continuous movement of the hands. A National Time transmission advances the clock at 10 times speed with a single motor. A remote manual switch can be used to adjust the clock. A master clock or clock controller can be used to automatically correct the time for power outages or daylight savings adjustments.

  • 6MI-11MI

    The MI minute impulse advances incrementally each minute utilizing a single direction motor. An MC3 Master Clock Controller is required for operation and provides automatic correction. The MI series will not drift when employed in countries that do not regulate power line frequency or installations that may have generator backup power. An MC3 Master Clock with the 4 circuit expansion switches allows user to remotely adjust up to 4 clocks independently during installation or repair.

More Details


The first generation of this mechanism was commonly used in the on neonized billboards dating back to the 1940's. Designed and quality built with reinforcements, this series mechanism supports hands for dial sizes to 22' in diameter.... Like the smaller mechanisms National Time manufacturers, this series also utilizes worm / worm gear drive technology but on a much larger scale to handle the additional wind loads. Hands can be advanced with continuous drive advancement or impulsed each minute depending on the end users preference. Both are achieved with the use of a 115VAC 50Hz or 60Hz synchronous high torque gear motor. This series unit can be outfitted with collector rings to power neon transformers located on each hand allowing neon outlining. Hands are balanced for the additional weight of the transformers and the neon is provided locally. This series unit can also be mounted vertically for in ground floral clock applications.

Specifications and Related Literature


# Type Name/Description File size View / Download
1 PDF 6M-11M Series Data Sheet 310 KB View

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