Keithley 2700 Data Logger

The Keithley 2700 is a versatile multimeter and data acquisition system that combines DMM, switch, and data logging functionality into a single half-rack unit. True 6½-digit (22-bit) resolution delivers precision measurements across DC voltage, AC voltage, DC current, AC current, resistance, temperature, frequency, period, and continuity. The mainframe accepts plug-in switch and control modules, scaling from 80 differential input channels (two-slot configuration) to 200 differential input channels (five-slot Model 2750).

– Technical Specifications

• Resolution: True 6½-digit (22-bit)
• Input Channels: Up to 80 differential (two-slot) or up to 200 differential (five-slot)
• Sampling Rates: 2000/s internal trigger; 375/s external trigger; 500+ channels/second scan rate; up to 3500 readings/second single channel
• Memory: 50,000-point non-volatile
• Input Impedance: 100mV–10V ranges selectable >10GΩ // <400pF or 10MΩ ±1%; 100V/1000V ranges 10MΩ ±1%
• Input Bias Current: <75pA @ 23°C
• Common Mode Current: 10GΩ
• AC Input Impedance: 1MΩ ±2% // <100pF
• AC Input Protection: 1000Vp or 400VDC; 300Vrms with plug-in modules
• AC Current Shunt: 0.1Ω (100mA–3A), 5Ω (20mA); 3A/250V fuse protection
• Autoranging Time: 1000°C capable), RTDs, thermistors; ITS-90 conversion; internal, external, or simulated reference junction; selectable open-circuit detection >11.4kΩ ±200Ω

– Key Features

• Patented measurement engine with enhanced speed performance
• Up to 80 or 200 differential channels depending on mainframe configuration
• 4-wire resistance with offset compensation
• True RMS AC measurement (AC-coupled)
• Non-volatile 50,000-point memory for on-board data storage

– Typical Applications

• Production testing and device characterization
• Accelerated stress testing and thermal monitoring
• Process monitoring and control
• Research and development measurement campaigns

– Compatibility & Integration

Expansible mainframe architecture supports various plug-in switch and control modules. RS-232 interface at 19.2k baud for ASCII readings (55/s).