Model 3711-B Tachometer Test Set

Product Description:
Quartz-synchronized precision stepper motor is accurate to within 0.02% of the set value throughout the 1 to 6,500 RPM operating range of the instrument. Also tests optical tachometers from 500 to 40,000 RPM in 10 RPM increments with an accuracy of 0.02% of the set value using the included 10:1 multiplier and adapter.

Features:

  • Quartz-synchronized precision stepper motor is accurate to within 0.02% of the set value throughout the 1 to 6,500 RPM operating range of the instrument.
  • Rotational speed can be set in the clockwise and counter-clockwise direction using RPM units in 1 RPM increments, or as a percentage of scale value from 1% to 120% (210 to 5,040 RPM).
  • Tests optical tachometers from 500 to 40,000 RPM in 10 RPM increments with an accuracy of 0.02% of the set value using the included 10:1 multiplier and adapter.
  • Simple, intuitive front panel controls and display.
  • Automated sweep mode slowly ramps-up the rotational speed from zero to the setpoint value and back down to zero for simple isolation of needle fluctuations and erratic readings.
  • Incorporates AND 20005 drive pad for use with all standard aircraft tachometer generators and alternators.
  • Includes a standard GEU-7/A two-pole tachometer generator and an SAE cable adapter for convenient testing of electrical and cable-driven tachometers.
  • 20/40 Ohm Wye-connected dummy load bank is included for testing 3-phase tachometer generators per MIL-G-26611.
  • Rugged aluminum carrying case protects the unit from harsh environments and includes storage for adapters and accessories.