The Rohde & Schwarz URE2 (350.5315.02) is a broadband True RMS voltmeter delivering high-accuracy DC and AC measurements across 10 Hz to 25 MHz. Built around a patented rectifier circuit with microprocessor-controlled auto-calibration, this instrument captures voltage signals with exceptional fidelity and measurement speed exceeding 30 measurements per second from 1 kHz.
Technical Specifications
• Measurement Functions: DC voltage, True RMS AC voltage, True RMS AC+DC voltage
• Frequency Range: DC, 10 Hz to 25 MHz
• Voltage Range: 50 µV to 300 V RMS
• Maximum Input: 300 V RMS (probe dependent), 50 V peak
• Crest Factor: Signals up to 7
• Input Impedance: 1 MΩ with low input capacitance
• Display: 4.5-digit LCD with selectable analog scale and high-resolution bargraph
• Measurement Speed: >30 measurements per second from 1 kHz
– Key Features
• Microprocessor-controlled auto-calibration with per-instrument, per-range correction factors stored in nonvolatile memory
• Zero function compensates for noise voltages and inherent noise, optimizing accuracy at low signal levels
• Switchable high-pass and low-pass filters suppress hum and high-frequency noise
• Relative measurement modes display difference, ratio, deviation in dB or percentage
• Automatic maxima/minima value determination
• Menu-guided parameter selection
• Commercial probe compatibility with division factor accounting
• Bargraph scale and unit follow digital display or can be set manually
– Typical Applications
• Audio-range level measurements
• Interference measurements on switch-mode power supplies
– Compatibility & Integration
IEEE 488 (IEC/IEEE Bus) interface enables remote control and data transfer using plain-text IEC 625-2 standard commands.
