Electrical Frequency Meter

Features

Specifications

• Circuit Current For Which Designed:
  Ac
• Mounting Hole Diameter:
  0.150 inches
• Overall Diameter:
  3.500 inches
• Mounting Bolt Circle Diameter:
  3.160 inches
• Indicator Type:
  Vibrating reed
• Installation Design:
  Panel
• Register Quantity:
  1
• Mounting Arrangement Style:
  Three hole/stud bolt circle
• Resonant Reed Quantity:
  9
• Meter Depth Behind Mounting Flange:
  2.400 inches
• Meter Body Diameter Behind Mounting Flange:
  3.800 inches
• Movement Type:
  Vibrating reed
• Background Color:
  Black single indicator single range
• Power Source:
  External
• Mounting Facility Type And Quantity:
  3 unthreaded hole
• Measurement Range:
  +392.0/+408.0 hertz single indicator single range
• Scale Selection Method:
  Terminal
• Circuit Attachment Method And Quantity:
  2 binding post
• Special Markings:
  Red from border to 393 hz and from 407 to border of cutout; green from 394 to 406 hz
• Nuclear Hardness Critical Feature:
  Nonhardened
• Style Designator:
  Round flush mtg
• Federal Supply Class (fsc):
  Electrical and electronic properties measuring and testing instruments
• National Stock Number (nsn):
  6625-00-827-0796