Rohde & Schwarz URE3-B2 Input/output-option for URE3
trigger input + analog outputs and scaleable analog readout
True RMS weighting for AC and
AC + DC
More than 30 measurements/s
41/2-digit display and analog
display with selectable scale
Very high measurement
accuracy
Highpass and lowpass filters
Relative measurement, maxima/
minima
Convenient menu-guided
operation
Use of commercial probes,
taking into account their division factor in the displayed result
IEC bus (IEEE488)
Additional features of URE3
Peak-value measurement
(positive, negative, peak-to-peak)
without tilts and overshoots
Fast RMS measurement even of
very low-frequency signals
Frequency measurement up to
30 MHz
Ultra high measurement
accuracy through automatic frequency response correction
In/out option: dual-channel
analog output, ready output, trigger input, TTL frequency counter input
RMS/Peak Voltmeter URE3 further enhances the range of applications due to
its greater frequency range and higher accuracy, built-in frequency counter and
additional peak-responding rectifier.
Fields of application
Level measurements in
audio range
Interference
measurements on switch-mode power supplies
Measurement of
extremely fast dialing signals and detection of simultaneously
transmitted supply voltages in radiotelephony
Automatic quality
control of audio and video tapes
High-frequency
measurements in digital magnetic storage and optical data storage
Peak weighting in
video measurements (sync signals)
Secondary calibration
standard
Measurement accuracy
A patented rectifier circuit with microprocessor-controlled auto calibration
makes for the outstanding measurement characteristics of URE2 and URE3. In
order to further enhance the accuracy, correction factors are determined for
each instrument and measurement range and stored in a nonvolatile memory.
A zero function allows noise voltages and the inherent noise to be compensated
for, the measurement accuracy being thus increased in particular at low levels.
The measured frequency value is used by URE3 for an internal frequency response
correction. This method increases the accuracy mainly at the higher
frequencies. Distortion-free measurement of signals is ensured by:
high input impedance
low input capacitance
highpass and lowpass filters that can be switched in to
suppress hum or high-frequency noise voltages
