Measuring Ampifier Type 2525
User Manual Vol.1
Brüel & Kjær
1–2
Chapter 1 –Introduction and Specifications
Introduction
1.1 Introduction
The Measuring Amplifier Type 2525 is a low-noise amplifier featuring both Charge
and DeltaTron
inputs, an extended, menu-based, manual user-interface and the
option of remote, automated control from one of its two interfaces.
The measuring amplifier is well-suited to both product and prototype testing and
includes automatic gain adjustment, level monitoring with alarm output and signal
overload indication. In addition the amplifier includes a mounted resonance meas-
uring function for ensuring the best mounting of accelerometers.
An integrator can convert acceleration signals to velocity and displacement and the
gain adjustment features ensure rapid and accurate set-up and ease of interpreta-
tion.
Up to eight amplifier set-ups can be stored and recalled, providing, with the inter-
faces, a platform for fully automatic operation.
In addition to the built-in filters, a 15-pin auxiliary connector is provided for exter-
nal filter attachment. Additional internal filters can be added upon request.
1.1.1 Main Set-up
● Measurement Set-up (see section 1.1.2)
● Display Set-up
● Lin/dB Read-out
● Sine Reference
● Interface Set-up
● Reset Detector/Channel
● SI/Imperial Units
● Decimal Point
● Mounted Resonance
● Display Mode
● Set-up Memory
● Back Lighting
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