Electrical Frequency Meter

Features

Specifications

• Circuit Current For Which Designed:
  Ac
• Scale Division Quantity:
  24 single indicator single range
• Frequency Rating:
  60.0 hertz
• Mounting Stud Length:
  0.500 inches
• Overall Diameter:
  2.695 inches
• Mounting Bolt Circle Diameter:
  2.440 inches
• Furnished Items And Quantity:
  Screws 3; lock washer 3; hex nuts 3
• Indicator Type:
  Dial w/pointer
• Installation Design:
  Panel
• Mounting Arrangement Style:
  Three hole/stud bolt circle
• Dial Scale Marking Color:
  Black single indicator single range
• Accuracy In Percent:
  -2.0/+2.0 at full scale single indicator single range
• Accuracy In Percent:
  -2.0 to 2.0 at full scale single indicator single range
• Meter Depth Behind Mounting Flange:
  1.600 inches
• Meter Body Diameter Behind Mounting Flange:
  2.210 inches
• Movement Type:
  Moving coil, permanent magnet
• Background Color:
  White single indicator single range
• Pointer Color:
  Black single indicator single range
• Power Source:
  External
• Mounting Facility Type And Quantity:
  3 threaded stud
• Scale Graduation Type:
  Linear single indicator single range
• Measurement Range:
  +388.0/+412.0 hertz single indicator single range
• Measurement Range:
  +388.0 to 412.0 hertz single indicator single range
• Mounting Stud Diameter:
  0.125 inches
• Scale Selection Method:
  Terminal
• Features Provided:
  Zero adjuster
• Movement Suspension Method:
  Jewel pivot base
• Circuit Attachment Method And Quantity:
  2 threaded stud
• Special Markings:
  Red line at 400 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):
  6625-00-070-2164