Electrical Frequency Meter

Features

Specifications

• Circuit Current For Which Designed:
  Ac
• Mounting Hole Diameter:
  0.155 inches
• Scale Division Quantity:
  40 single indicator single range
• Frequency Rating:
  400.0 hertz
• Overall Diameter:
  4.500 inches
• Mounting Bolt Circle Diameter:
  4.250 inches
• Indicator Type:
  Dial w/pointer
• Installation Design:
  Panel
• Mounting Arrangement Style:
  Three hole/stud bolt circle
• Sensitivity Rating:
  1.6 volt-amperes
• Dial Scale Marking Color:
  Black single indicator single range
• Accuracy In Percent:
  -0.3/+0.3 at full scale single indicator single range
• Meter Depth Behind Mounting Flange:
  2.530 inches
• Meter Body Diameter Behind Mounting Flange:
  3.500 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 unthreaded hole
• Scale Graduation Type:
  Linear single indicator single range
• Measurement Range:
  +380.0/+420.0 hertz single indicator single range
• Scale Selection Method:
  Terminal
• Features Provided:
  Zero adjuster
• Movement Suspension Method:
  Jewel pivot base
• Circuit Attachment Method And Quantity:
  2 threaded stud
• Operating Voltage Rating In Volts:
  Between 110.0 ac and 120.0 ac
• Phase:
  Single
• Nuclear Hardness Critical Feature:
  Nonhardened
• Style Designator:
  Round flush mtg
• Fsc Application Data:
  Test set, elect. Equip.
• Federal Supply Class (fsc):
  Electrical and electronic properties measuring and testing instruments
• National Stock Number (nsn):
  6625-01-175-4848
• Special Features:
  Ruggedized