DC Differential Voltmeter 871A

Fluke, John, Mfg. Co. Inc.; Everett (WA)

Data
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  • Year
  • 1966 ?
  • Category
  • Service- or Lab Equipment
  • Radiomuseum.org ID
  • 187818

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
  • Alternating Current supply (AC) / 115; 230 Volt
  • Loudspeaker
  • - - No sound reproduction output.
  • Material
  • Metal case
  • from Radiomuseum.org
  • Model: DC Differential Voltmeter 871A - Fluke, John, Mfg. Co. Inc.;
  • Shape
  • Tablemodel, with any shape - general.
  • Dimensions (WHD)
  • 215 x 210 x 340 mm / 8.5 x 8.3 x 13.4 inch
  • Notes
  • 3 digits + 0-100 potentiometer.
    Ranges: 1, 10, 100, 1000 V.
    Resolutions: 10 µV, 100 µV, 1 mV, 10 mV.
    Input resistance: 10 Mohms.
    When nulled at 1 and 10 V ranges, input resistance is infinite.
    By reading null voltmeter with all switches and pot digits at zero,
    full scale deflection of ±1 mV is obtained.
    Input can be grounded or floating up to 1 kV from ground.
    Voltage Reference: Zener Diode.
    Drift/year ±50 ppm.
    Tempco: <5 ppm/°C.
    Drift per 10% mains voltage change: ±0.001%.
    Drift after one hour warm-up: 0,002%/h.

    These specifications are valid for ambient temperature range +10 to +40 °C.
    Power input: 115/230 V ±10%, 50-400 Hz.
    CMRR: 130 dB @ DC, 85 dB @ 60 Hz, 70 dB @ 400 Hz.
  • Net weight (2.2 lb = 1 kg)
  • 6.5 kg / 14 lb 5.1 oz (14.317 lb)
  • Source of data
  • - - Data from my own collection
  • Mentioned in
  • - - Manufacturers Literature

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The model DC Differential Voltmeter is part of the collections of the following members.

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