The HP/Agilent 3468A is a 5.5-digit autoranging digital multimeter engineered for benchtop and automated test system applications. It delivers five core measurement functions—DC voltage, true RMS AC voltage, DC current, true RMS AC current, and resistance in both 2-wire and 4-wire configurations. Selectable resolution (5.5, 4.5, or 3.5 digits) trades measurement speed against noise rejection, while integrating analog-to-digital conversion provides superior AC line rejection at ±0.1% for 50/60 Hz. The built-in HP-IL interface enables full programmability of functions, ranges, and measurement parameters, supporting integration with HP-41C/CV calculators and HP Series 80 computers for automated measurement workflows.
Technical Specifications
DC Voltage: 300 mV to 300 V ranges with 1 µV sensitivity. Best accuracy ±(0.0035% of reading + 2 counts) on the 3 V range within 24 hours. Input resistance exceeds 10 GΩ on ranges to 3 V; 10 MΩ ±1% on 30 V and 300 V ranges. Maximum non-destructive input: 300 Vrms or 450 V peak.
AC Voltage (True RMS): 300 mV to 300 V with bandwidth from 20 Hz to 100 kHz on all ranges; up to 300 kHz on the 30 V range. Input impedance 1 MΩ ±1% shunted by <60 pF. Maximum non-destructive input: 300 Vrms or 450 V peak.
Resistance: 300 Ω to 30 MΩ with 1 mΩ sensitivity; 6.5 V open-circuit voltage. Maximum non-destructive input: 3 A from 10 GΩ DC) minimizes loading on sensitive circuits
• True RMS AC measurement across broad frequency range to 300 kHz
• 1-year DCV accuracy: 0.02% of reading + 2 counts (3 V range)
– Compatibility & Integration
HP-IL Interface: Simple 2-wire serial connection enabling programmable control of all functions and ranges. Direct connectivity with HP-41C/CV calculators and HP Series 80 computers supports integrated test automation.
