Vintage DMM- Hioki 3200-50

An ebay find made its way into the lab- an industrial quality DMM from Hioki, made in 1984! The meter has some pretty good specs as shown in this datasheet:

  • 3.5 digit (1999 count), 0.5% on DC voltage
  • 20uA DC current range with 10nA resolution
  • 1G input resistance on 200mV range
  • Drop proof to 1 meter
  • Dust sealed.
  • 500 hours battery life using 2 AA
  • Neon indicator of overvoltage Continue reading