Condition: Used

The HP Agilent 3457A is a versatile bench and systems digital multimeter featuring seven measurement functions with 3.5 to 6.5 digits of resolution, extendable to 7.5 digits. Reading rates span from 1 reading every 2 seconds up to 1350 readings/second, with basic DC volts accuracy as good as 5 ppm. The input can be expanded to up to ten channels using optional plug-in multiplexer assemblies. Over 1000 readings or complete measurement sequences can be stored internally, and the current DMM setup can be saved to non-volatile state memory for fast reconfiguration. Math functions include PASS/FAIL limit testing, NULL, SCALE, and THERMISTOR linearisation. Total electronic calibration, including AC volts, is supported. System features include flexible ASCII, 16-bit binary, or 32-bit binary data formatting, buffer memory, VOLTMETER COMPLETE output, EXTERNAL TRIGGER input, and programmable front/rear terminal switching. The instrument uses HP's HPML command language for straightforward programming.

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The HP (Agilent) 3457A is a high-accuracy digital multimeter designed for both bench-top and automated test system applications. It offers seven measurement functions and a wide range of operating speeds, making it suitable for a broad spectrum of measurement tasks from precision DC voltage measurement to high-speed data acquisition.

Key Features:
- Seven measurement functions: DCV, ACV, DC Current, AC Current, 2-wire Resistance, 4-wire Resistance, Frequency
- Resolution: 3.5 to 6.5 digits standard, extendable to 7.5 digits
- Reading Rate: 1 reading per 2 seconds up to 1350 readings/second
- DC Volts Accuracy: as good as 5 ppm
- Input Channels: expandable to 10 channels with optional plug-in multiplexer assemblies
- Memory: storage of more than 1000 readings or complete measurement sequences
- Non-volatile state memory for DMM setup storage
- Math Functions: PASS/FAIL limit testing, NULL, SCALE, THERMISTOR linearisation
- Total electronic calibration including AC volts
- Interface: HP-IB (GPIB) standard
- Data Formats: ASCII, 16-bit binary, 32-bit binary
- VOLTMETER COMPLETE output and EXTERNAL TRIGGER input
- Programmable front/rear terminal switching
- HPML (Hewlett-Packard Multimeter Language) command set
- Front panel: comprehensive manual operation with full flexibility

The 3457A was designed with system integration in mind, supporting HP's tradition of systems-oriented DMMs, and is compatible with a wide range of automated test environments.

HP 3457A Digital Multimeter Operating Manual (Keysight/Agilent archive): Download PDF

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