Photo Contact Tachometer DT-2238

Lutron; Taipei

  • Year
  • 1995 ??
  • Category
  • Service- or Lab Equipment
  • Radiomuseum.org ID
  • 347029

Click on the schematic thumbnail to request the schematic as a free document.

 Technical Specifications

  • Number of Transistors
  • Semiconductors present.
  • Semiconductors
  • Wave bands
  • - without
  • Power type and voltage
  • Dry Batteries / AA: 4 x 1.5 Volt
  • Loudspeaker
  • - - No sound reproduction output.
  • Material
  • Plastics (no bakelite or catalin)
  • from Radiomuseum.org
  • Model: Photo Contact Tachometer DT-2238 - Lutron; Taipei
  • Shape
  • Very small Portable or Pocket-Set (Handheld) < 8 inch.
  • Dimensions (WHD)
  • 61 x 138 x 38.5 mm / 2.4 x 5.4 x 1.5 inch
  • Notes
  • Lutron Electronic Enterprise Co., Ltd.,
    Photo Contact Tachometer DT-2238

    - LCD display 5 digit.
    - Measurement of exposure: 0.5 to 19.999 RPM
    - No exposure: 5 to 99.999 RPM
    - Surface velocity: 0.05 to 1,999.9 m / min / 0.2 to 6.560 ft / min
    - Resolution
      + RPM: 0.1 RPM (<1,000 RPM) / 1RPM (≥ 1000 RPM)
      + M / min: 0.01m/phut (<100m/phut) / 0.1m/phut (≥ 100m/phut)
      + Ft / min: 0.1ft/phut (<1.000 ft / min) / 1ft/phut (≥ 1.000 ft / min)
    - Accuracy: ± (0.05% + 1 digit)

  • Net weight (2.2 lb = 1 kg)
  • 0.280 kg / 0 lb 9.9 oz (0.617 lb)
  • Literature/Schematics (1)
  • Operation manual (user)
  • Author
  • Model page created by Miguel Bravo-Cos. See "Data change" for further contributors.

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