• Country
• Japan

• Manufacturer / Brand
• Sanwa Electric Instrument Co., Ltd.; Tokyo

• Year
• 1990 ?

• Category
• Service- or Lab Equipment

• Radiomuseum.org ID
• 292208

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

• Wave bands
• - without

• Power type and voltage
• Storage and/or dry batteries / 2 x 1,5 Volt

• Loudspeaker
• - - No sound reproduction output.

• Material
• Plastics (no bakelite or catalin)

• from Radiomuseum.org
• Model: Pocket-Tester PS-8 - Sanwa Electric Instrument Co.,

• Shape
• Very small Portable or Pocket-Set (Handheld) < 8 inch.

• Dimensions (WHD)
• 115 x 18 x 57 mm / 4.5 x 0.7 x 2.2 inch

• Notes

• Comprobador multímetro tester universal Sanwa, mod. PS-8 Solar

  Operating method: Dual slope integration
  Display: 3 ½ digit in  LCD, character height 10 mm MAX reading 1999 with units, symbols, etc.
  Overranging indication:  MSB "1" blinks: 
  Polarity indication: Automatic switching ("-" is indicated when negative voltage is inputted.)
  Low battery indication: "B" mark is lit when battery power becomes less than 1.2 V 
  Sampling rate: Two times/sec.
  Accuracy guaranteed temperature and humidity ranges: 18  to 28 ºC, 80% R.H. or below
  Storage temperature and Humidity ranges: -10 to 50ºC, 70% R.H.
  Power source: Two LR-44 (1.5 V) button rechargeable type batteries exclusive for the PM-8. Solar charger.

  1. Input impedance
      DCV:         About 100 MΩ or more (200 mV range)
      DC/ACV:  About 11 MΩ (2 V range)
      DC/ACV:  About 10 MΩ (Except 200 mV and 2 V ranges)

  2. Measuring resistence (Ω)
      Release voltage about 0.43 V

  3. Testing continuity (BUZZ)
      Threshold level: About 380 Ω
      Response time: Within 100 msec.
      Release voltage: About 0.43 V.

  4. Testing diode
      Release voltage: about 1.3 V.

  5. Circuit protection aganinst excess load
      DC/ACV: 650 V AC/DC MAX (1 min)
      OHM/BUZZ/Diode: 250 V AC/DC MAX (1  min)

  6. Measurig functions:
      DCV: ±200.0 mV / ±2.000 V / ±20.00 V / ±200.0 V / ±500 V
      ACV: 2.000 V / 20.00 V / 200.0 V / 500 V (40 Hz ~ 500 Hz)
      OHM: 200.0 Ω  / 2.000 kΩ / 20.00 kΩ / 200.0 kΩ / 2000 kΩ / 20.000 MΩ

• Net weight (2.2 lb = 1 kg)
• 0.085 kg / 0 lb 3 oz (0.187 lb)

• Author
• Model page created by Miguel Angel Irissarry Garcia. See "Data change" for further contributors.

• Other Models

• Here you find 57 models, 55 with images and 24 with schematics for wireless sets etc. In French: TSF for Télégraphie sans fil.
  All listed radios etc. from Sanwa Electric Instrument Co., Ltd.; Tokyo