Electrical Frequency Meter

Features

Specifications

• Circuit Current For Which Designed:
  Ac
• Dielectric Withstanding Voltage In Volts:
  3000.0
• Mounting Hole Diameter:
  Between 0.143 inches and 0.157 inches
• Scale Division Quantity:
  40 single indicator single range
• Overall Diameter:
  3.510 inches
• Environmental Protection:
  Cold resistant and heat resistant and shock resistant and vibration resistant
• Mounting Bolt Circle Diameter:
  3.160 inches
• 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:
  -2.5 to 2.5 at full scale single indicator single range
• Meter Depth Behind Mounting Flange:
  4.125 inches
• Meter Body Diameter Behind Mounting Flange:
  2.800 inches
• Movement Type:
  Moving iron vane
• 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 to 420.0 hertz single indicator single range
• Features Provided:
  Zero adjuster
• Movement Suspension Method:
  Taut band
• Circuit Attachment Method And Quantity:
  2 threaded stud
• Operating Voltage Rating In Volts:
  Between 105.5 ac and 135.0 ac
• Nuclear Hardness Critical Feature:
  Nonhardened
• Style Designator:
  Round flush mtg
• Supplementary Features:
  Damping factor: 1.5 ; response time: 2.5 seconds ; resistance: 20 megohms from terminals to meter case
• Fsc Application Data:
  Test set, elect. Equip.
• Federal Supply Class (fsc):
  Electrical and electronic properties measuring and testing instruments
• National Stock Number (nsn):
  6625-00-907-1804
• Special Features:
  Ruggedized