The Keithley 182 is a high-resolution digital voltmeter engineered for precision DC voltage measurement in laboratory and industrial environments requiring exceptional sensitivity and accuracy. It delivers 1 µV resolution on its lowest range, input impedance exceeding 10 GΩ across most ranges, and typical settling time under 1 second. Superior common mode rejection (>140 dB DC, >120 dB at 60 Hz) and extremely low offset current (10 GΩ (1 mV to 100 V ranges); 10 MΩ (1000 V range)
• CMRR: >140 dB DC, >120 dB at 60 Hz (balanced input)
• NMRR: >60 dB at 60 Hz; >40 dB at 50/60 Hz with digital filtering
• Offset Current: <10 fA typical
• Temperature Coefficient: ±(0.002% of range + 0.001% of reading) per °C
• Noise: <0.5 µV peak-to-peak (1 mV range, digital filtering enabled)
• Settling Time: Typically <1 second to 30 ppm (slowest filter setting)
Power & Physical
• Power Requirements: 105–125 V ac or 210–250 V ac, 50/60 Hz
• Power Consumption: <30 VA
• Dimensions: Standard 19-inch rack-mount width
• Weight: ~15 lbs (6.8 kg)
– Key Features
• DC voltage measurement with digital filtering for noise reduction
• Buffered analog output for signal monitoring
• Parallel BCD output for data acquisition system integration
• Front-panel digital zeroing (nulling)
• Remote control via rear-panel connector (trigger, data output, null functions)
– Typical Applications
• Research and development requiring high-sensitivity voltage acquisition
• Quality control and precision testing
• Low-level signal measurement in scientific instrumentation
• Automated test equipment (ATE) integration
– Compatibility & Integration
The 182 integrates into laboratory and automated systems via BCD parallel output and analog buffered output. Remote control functionality enables operation within larger instrument configurations.
