Electrical Frequency Meter

Features

Specifications

• Circuit Current For Which Designed:
  Dc
• Dielectric Withstanding Voltage In Volts:
  3000.0
• Mounting Hole Diameter:
  Between 0.143 inches and 0.157 inches
• Scale Division Quantity:
  40 single indicator 1st range
• Scale Division Quantity:
  50 single indicator 2nd range
• Overall Diameter:
  3.500 inches
• Environmental Protection:
  Shock resistant and vibration resistant
• Mounting Bolt Circle Diameter:
  3.160 inches
• Furnished Items And Quantity:
  Nut 4; washer 4
• Indicator Type:
  Dial w/pointer
• Installation Design:
  Panel
• Mounting Arrangement Style:
  Three hole/stud bolt circle
• Sensitivity Rating:
  200.0 microamperes
• Dial Scale Marking Color:
  Black single indicator 1st range
• Dial Scale Marking Color:
  Red single indicator 2nd range
• Accuracy In Percent:
  -2.0/+2.0 at full scale single indicator all ranges
• Meter Depth Behind Mounting Flange:
  1.200 inches
• Meter Body Diameter Behind Mounting Flange:
  2.670 inches
• Movement Type:
  Moving coil, permanent magnet
• Background Color:
  White single indicator all ranges
• Pointer Color:
  Black single indicator all ranges
• Power Source:
  External
• Mounting Facility Type And Quantity:
  3 unthreaded hole
• Scale Graduation Type:
  Linear single indicator all ranges
• Measurement Range:
  +375.0/+425.0 hertz single indicator 2nd range
• Measurement Range:
  +56.0/+64.0 hertz single indicator 1st range
• Scale Selection Method:
  Terminal
• Features Provided:
  Zero adjuster
• Movement Suspension Method:
  Jewel pivot base
• Circuit Attachment Method And Quantity:
  2 threaded stud
• Nuclear Hardness Critical Feature:
  Nonhardened
• Special Test Features:
  Scale iaw mil-t-26922d
• Style Designator:
  Round flush mtg
• Supplementary Features:
  Term. Res 550 ohms porm 2 pct
• Fsc Application Data:
  Test set, elect. Equip.
• Federal Supply Class (fsc):
  Electrical and electronic properties measuring and testing instruments
• National Stock Number (nsn):
  6625-01-181-6420
• Special Features:
  Ruggedized