The Keysight/Agilent/HP 3852A is a modular data acquisition and control unit designed for automated test and measurement applications. Built on a 68000-based processor, it acquires data from multiple sensor types and controls external devices while performing complex analysis internally—reducing dependence on host computer communication. The mainframe accommodates eight plug-in function modules; up to seven optional 3853A extender chassis (each with ten slots) can expand total capacity to 78 modules, enabling highly configurable measurement and control systems.
– Technical Specifications
• DC Voltage: ±300 V, 22-bit resolution, 0.008% accuracy
• AC Voltage: ±200 V, 22-bit resolution, 0.5% accuracy
• Resistance: Maximum 3 MΩ
• Frequency Measurement: DC to 200 kHz
• Digital Input (isolated): 230 kHz maximum speed
• Analog Output (DCV): ±10 V
• Measurement Speed: 100,000 readings/second
• Memory: 5,500 readings standard; expandable to 256 kbytes, 1 Mbyte, 2 Mbytes, or 4 Mbytes
– Key Features
• On-board 68000 intelligence enables local data processing, filtering, and decision-making
• Modular slot architecture supports thermocouples, thermistors, RTDs, strain gages, and standard electrical measurements
• Selective data return to host—only significant results transmitted, freeing host CPU resources
• IEEE-488 (GPIB) standard interface for instrument communication
• RS-232/RS-422 serial communication via optional HP 44789A module
– Typical Applications
Automated test systems, sensor data logging, environmental monitoring, multi-channel instrumentation, and real-time process control requiring onboard computation and distributed module placement.
– Compatibility & Integration
Communicates via GPIB or serial protocols. Extender chassis architecture permits remote module placement. Plug-in modules select specific measurement or control functions for custom system configuration.
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