The Agilent/Keysight E1312A is a 6.5-digit DMM housed as a B-size, 2-slot VXI module for high-precision measurement applications. Operating as a VXIbus message-based slave device, it delivers selectable resolution from 4.5 digits for speed to 6.5 digits for maximum accuracy. Its electrical design mirrors the C-size E1412A, differing only in physical form factor.
Technical Specifications
Resolution & Performance
• Selectable resolution: 4.5 digits to 6.5 digits
• Speed: Up to 65 range changes per second and 30 function changes per second (DC voltage measurement)
Measurement Functions
• DC Voltage
• AC Voltage
• DC Current
• AC Current
• Resistance (2-wire and 4-wire)
• Frequency
• Period
• Limit checks with TTL output
• DC voltage ratios
Accuracy (Referenced to Electrically Identical E1412A)
• DC Voltage (10 V range): ±0.0015% of reading + 0.0004% of range at 24-hour accuracy (23°C ±1°C)
• AC Voltage (100 V range, Slow filter, sinewave, 1-hour warm-up): ±0.03% of reading + 0.01% of range
• Temperature coefficient: 0.0005 + 0.0001 for DC voltage on 10 V range (23°C ±5°C, 90-day spec)
Module Configuration
• Form factor: VXIbus B-size, 2-slot module
• Interface: VXIbus message-based
• Programming: HP-IB (IEEE 488) via command module or embedded controller
– Key Features
Flexible resolution selection optimizes measurement speed versus accuracy for diverse test scenarios. Dual-interface capability—VXIbus and HP-IB—enables integration into legacy and modern test systems. The compact B-size format conserves chassis space while maintaining electrical performance parity with larger C-size instruments.
– Typical Applications
Precision data acquisition in modular test systems, automated electrical characterization, and high-accuracy DC/AC measurements requiring integration within VXI instrument racks.
– Compatibility & Integration
Native VXIbus operation supports message-based communication in VXI chassis environments. HP-IB programming interface enables control via external command modules, facilitating system integration with instruments from the Agilent/Keysight measurement ecosystem.
