Digital Multimeter PM 2421

• Country
• Netherlands

• Manufacturer / Brand
• Philips; Eindhoven (tubes international!); Miniwatt

• Year
• 1971 ?

• Category
• Service- or Lab Equipment

• Radiomuseum.org ID
• 229472

• Picture
• Schematics

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

• Number of Tubes
• 5

• Valves / Tubes
• ZM1000 ZM1000 ZM1000 ZM1000 ZM1001

• 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: Digital Multimeter PM 2421 - Philips; Eindhoven tubes

• Shape
• Tablemodel, with any shape - general.

• Dimensions (WHD)
• 305 x 145 x 270 mm / 12 x 5.7 x 10.6 inch

• Notes

• The Philips Digital Multimeter PM 2421 is a universal instrument that allows measurement of DC and AC voltages in a level range of more than 1:10exp7.

  Measuring ranges:

  • DC voltages: 19.98, 199.8, 1998 mV - 19.98, 199.8, 1000 V
  • DC currents: 19.98, 199.8, 1998 nA - 19.98, 199.8, 1998 µA - 19.98, 199.8, 1400 mA
  • AC voltages: 19.98, 199.8, 1998 mV - 19.98, 199.8, 500 V (rms)
  • AC currents: 19.98, 199.8, 1998 nA - 19.98, 199.8, 1998 µA - 19.98, 199.8, 1400 mA
  • HF voltages: 19.98, 199.8, 1998 mV (rms), 300 kHz...700 MHz
  • Resistances: 19.98, 199.8, 1998 Ω - 19.98, 199.8, 1998 kΩ - 19.98, 199.8, 1998 MΩ

  The frequency range in AC voltage measurements is from 10 Hz to 1 MHz. With the optional Probe PM 9203 (and T-piece PM 9253 where required) it is possible to carry out HF voltage measurements (range 2 mV to 1999 mV) at frequencies up to 700 MHz.

  Range values given are full-scale values.

• Net weight (2.2 lb = 1 kg)
• 7 kg / 15 lb 6.7 oz (15.419 lb)

• Mentioned in
• -- Original-techn. papers.

• Author
• Model page created by Antonio Marra. See "Data change" for further contributors.

• Other Models

• Here you find 5233 models, 4365 with images and 3445 with schematics for wireless sets etc. In French: TSF for Télégraphie sans fil.
  All listed radios etc. from Philips; Eindhoven (tubes international!); Miniwatt