Electrical Frequency Meter

Features

Specifications

• Circuit Current For Which Designed:
  Ac
• Mounting Hole Diameter:
  Between 0.141 inches and 0.171 inches
• Frequency Rating:
  60.0 hertz
• Overall Diameter:
  Between 2.485 inches and 2.515 inches
• Mounting Bolt Circle Diameter:
  Between 3.172 inches and 3.202 inches
• Furnished Items And Quantity:
  Mtg hdw 3
• Indicator Type:
  Vibrating reed
• Installation Design:
  Panel
• Register Quantity:
  1
• Mounting Arrangement Style:
  Three hole/stud bolt circle
• Frequency Response Range:
  +50.000/+60.000 hertz
• Resonant Reed Quantity:
  14
• Meter Depth Behind Mounting Flange:
  2.000 inches
• Meter Body Diameter Behind Mounting Flange:
  Between 2.735 inches and 2.765 inches
• Movement Type:
  Vibrating reed
• Background Color:
  White single indicator single range
• Power Source:
  External
• Mounting Facility Type And Quantity:
  3 unthreaded hole
• Measurement Range:
  +69.0/+96.0 hertz single indicator single range
• Scale Selection Method:
  Terminal
• Circuit Attachment Method And Quantity:
  2 solder lug
• Operating Voltage Rating In Volts:
  Between 100.0 ac and 130.0 ac
• Phase:
  Single
• Special Markings:
  Calibration setting 90 equals 60 cycles, 75 equals 50 cycles
• 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):
  6625-00-815-0423
• Special Features:
  100 to 150 vac operation with calibration settings of 50 hz at 75 and 60 hz at 90