Model 3800 Tachometer Tester

Description:

The King Nutronics Model 3800 is a compact, lightweight and quiet tachometer tester designed specifically for calibrating and troubleshooting aircraft and helicopter tachometer indicators and generator/alternator systems on the flight line and in the workshop. The Model 3800 exceeds current U.S. Navy specifications. The Model 3800 is accurate to within ± 0.02% of the set point value throughout its operating range of 1 through 6,500 RPM in 1 RPM increments. Calibration can be performed in the clockwise or counter-clockwise directions using RPM units, or as a percentage of full scale from 1% to 120 % (42 to 5040 RPM) in 1% increments for jet engine tachometers.

Features:
  • Calibrates 2 and 4-pole generators, as well as RPM and % indicators.
  • Calibrates optical tachometers from 500 to 65,000 ROM with the (optional) optical tachometer kit.
  • Calibrates jet engine tachometers as percentage of full scale from 1% to 120%.
  • Calibrates electrical and cable-driven tachometers.
  • Accurate to within ±0.02% of set point value.
  • Normal operating range from 1 to 6,500 RPM.
  • Intuitive front panel controls for efficient testing.
  • Manual Adjust mode for easy tachometer troubleshooting.
  • Standard AND 20005 drive pad.
  • Internal Wye-connected and delta-connected load banks.
  • Quiet operation.
  • Stores up to 4 user-programmable test scenarios for both Tacho-Gen and Tacho-Indicator (in addition to the standard scenario).
  • Intuitive controls shorten learning curve for inexperienced operators
  • Target speeds and System status information easily available on vacuum fluorescent front panel display
  • Includes standard SAE cable adapter for testing of cable driven tachometers. Also included are internal switch-selectable Wye-connect and delta-connectable load banks are also included.
Specifications:
  • Accuracy: ±0.02% of the set point value in all operating modes
  • Resolution: 1% or 1 RPM (10 RPM in 10:1 multiplier mode)
  • Setpoint stability: ±0.01% IV throughout operating range
  • Operating Range:
    RPM mode: 1 to 6,500 RPM in 1 RPM increments
    % (Percent) mode: 1 to 120% in 1% increments
    Optical mode: 500 to 65,000 RPM in 10 RPM increments
  • Display Units: RPM or %
  • Tachometer Drive Pad Type: Standard ¼” square female coupling in accordance with AND 20005, Type XV-B
  • Input Power:
    Voltage: 120 (or 220) ±10% VAC, 50 to 60 Hz
    Current (max.): 4 Amps
    Fuse type (2 required): 1 Amp and 5 Amps
  • Case Dimensions & Weight:
    13.25”L x 9.2”W x 11.5”H
    19 lbs. (8.62 kg.)
  • Accessories:
    The optional optical tachometer kit contains a polygon mirror disk, an opto beam mask, and a vice head assembly. Use of these accessories simplifies testing of handheld instruments.
DESCRIPTION
Description:

The King Nutronics Model 3800 is a compact, lightweight and quiet tachometer tester designed specifically for calibrating and troubleshooting aircraft and helicopter tachometer indicators and generator/alternator systems on the flight line and in the workshop. The Model 3800 exceeds current U.S. Navy specifications. The Model 3800 is accurate to within ± 0.02% of the set point value throughout its operating range of 1 through 6,500 RPM in 1 RPM increments. Calibration can be performed in the clockwise or counter-clockwise directions using RPM units, or as a percentage of full scale from 1% to 120 % (42 to 5040 RPM) in 1% increments for jet engine tachometers.

FEATURES
Features:
  • Calibrates 2 and 4-pole generators, as well as RPM and % indicators.
  • Calibrates optical tachometers from 500 to 65,000 ROM with the (optional) optical tachometer kit.
  • Calibrates jet engine tachometers as percentage of full scale from 1% to 120%.
  • Calibrates electrical and cable-driven tachometers.
  • Accurate to within ±0.02% of set point value.
  • Normal operating range from 1 to 6,500 RPM.
  • Intuitive front panel controls for efficient testing.
  • Manual Adjust mode for easy tachometer troubleshooting.
  • Standard AND 20005 drive pad.
  • Internal Wye-connected and delta-connected load banks.
  • Quiet operation.
  • Stores up to 4 user-programmable test scenarios for both Tacho-Gen and Tacho-Indicator (in addition to the standard scenario).
  • Intuitive controls shorten learning curve for inexperienced operators
  • Target speeds and System status information easily available on vacuum fluorescent front panel display
  • Includes standard SAE cable adapter for testing of cable driven tachometers. Also included are internal switch-selectable Wye-connect and delta-connectable load banks are also included.
SPECIFICATIONS
Specifications:
  • Accuracy: ±0.02% of the set point value in all operating modes
  • Resolution: 1% or 1 RPM (10 RPM in 10:1 multiplier mode)
  • Setpoint stability: ±0.01% IV throughout operating range
  • Operating Range:
    RPM mode: 1 to 6,500 RPM in 1 RPM increments
    % (Percent) mode: 1 to 120% in 1% increments
    Optical mode: 500 to 65,000 RPM in 10 RPM increments
  • Display Units: RPM or %
  • Tachometer Drive Pad Type: Standard ¼” square female coupling in accordance with AND 20005, Type XV-B
  • Input Power:
    Voltage: 120 (or 220) ±10% VAC, 50 to 60 Hz
    Current (max.): 4 Amps
    Fuse type (2 required): 1 Amp and 5 Amps
  • Case Dimensions & Weight:
    13.25”L x 9.2”W x 11.5”H
    19 lbs. (8.62 kg.)
  • Accessories:
    The optional optical tachometer kit contains a polygon mirror disk, an opto beam mask, and a vice head assembly. Use of these accessories simplifies testing of handheld instruments.
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