Keithley / MetraByte PCIP-DMM 4.5-Digit Multimeter

The Keithley/MetraByte PCIP-DMM is a 4.5-digit digital multimeter installed directly into an ISA-bus compatible computer I/O slot. It eliminates the need for a separate front panel by leveraging the host computer’s display and input devices while maintaining electrical isolation from both the computer and line power. The instrument operates in manual or program modes via ASCII commands, supporting automatic or manual data logging of up to 999,999 readings at programmable intervals ranging from 0.5 seconds to 99.9 minutes. Measurements are saved to ASCII files for spreadsheet and presentation software integration, with background operation capability.

## Technical Specifications

• **Resolution:** 4.5-digit
• **Measurement Functions:** AC voltage, DC voltage, AC current, DC current, and resistance (true RMS for AC readings)
• **Maximum Input Voltage:** 200 V DC; 200 V peak AC
• **Maximum Input Current:** 0–5 A, 42 V peak
• **Open Circuit Voltage (resistance measurement):** < 3.5 V across all ranges
• **AC Crest Factor:** Up to 3:1 allowable
• **Settling Time:** 1 second to 3 counts final reading (DC voltage); 2 seconds to 3 counts final reading (AC voltage)
• **Data Logging Capacity:** Up to 999,999 readings at programmable intervals

## Key Features

• True RMS AC measurement capability
• Programmable data logging with variable sampling intervals
• ASCII file export for post-measurement analysis
• Background operation mode for continuous monitoring
• Isolated measurement front-end from computer and mains
• Standard 3/4-inch spaced banana jack connectors
• ISA-bus integration reduces hardware footprint and programming overhead

## Typical Applications

Automated test systems requiring integrated multimeter functionality; long-duration data acquisition with interval-based logging; PC-based measurement automation in laboratory and manufacturing environments.

## Compatibility & Integration

Installs directly into ISA-compatible I/O slots. Controlled via ASCII command set, functioning identically to GPIB instruments from a software perspective. Requires qualified personnel for operation due to electrical isolation requirements and voltage/current handling specifications.