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Log: Keysight 34461A Truevolt DMM Driver

Commits: e50027c

Overview

Added a full-featured driver for the Keysight 34461A / 34460 series 6.5-digit multimeters — the modern successor to the legendary 34401A.

Capabilities

  • DCV/ACV: Auto or manual ranging, true-RMS AC
  • DCI/ACI: Current measurements with shunt switching
  • Resistance: 2-wire and 4-wire (offset-compensated)
  • Frequency / Period: Audio-band through RF
  • Temperature: Thermocouple (J, K, T, E, N, R, S) and RTD (PT100)
  • Capacitance: 1 nF to 10 mF range
  • Diode test: Forward voltage measurement
  • Factory routing: Auto-detected when *IDN? contains "34461" or "34460"

Digital Twin

SimulatedKeysight34461A produces realistic values (4.95 V DCV, 1000 Ohm resistance, 23.5C temperature) and supports all measurement functions so data pipeline development works offline.