Electrical Frequency Meter

Features

Specifications

• Circuit Current For Which Designed:
  Dc
• Mounting Hole Diameter:
  Between 0.143 inches and 0.157 inches
• Mounting Stud Length:
  Between 0.375 inches and 0.625 inches
• Overall Diameter:
  3.510 inches
• 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
• Meter Depth Behind Mounting Flange:
  1.660 inches
• Meter Body Diameter Behind Mounting Flange:
  2.800 inches
• Background Color:
  White single indicator single range
• Mounting Facility Type And Quantity:
  3 unthreaded hole
• Measurement Range:
  +0.0/+160.0 volts, ac single indicator 2nd range
• Measurement Range:
  +0.0 to 133.0 volts, ac single indicator 1st range
• Measurement Range:
  +0.0 to 160.0 volts, ac single indicator 2nd range
• Scale Selection Method:
  Terminal
• Features Provided:
  Zero adjuster
• Circuit Attachment Method And Quantity:
  2 threaded stud
• Special Markings:
  Percent rated current, double width red line at 0.75 amps for 60 hzscale, double width blue line at 0.625 amps for 50 hz scale
• Nuclear Hardness Critical Feature:
  Hardened
• Style Designator:
  C1 round flush mtg
• Style Designator:
  Round flush mtg
• Federal Supply Class (fsc):
  Electrical and electronic properties measuring and testing instruments
• National Stock Number (nsn):
  6625-00-004-8066
• Special Features:
  Terminal no. 1/4-28 in. Thd 0.620 in. Lg