Bruel & Kjaer (B&K) Nexus 2690 2-channel Microphone Conditioning Amplifier

Description

The
NEXUS
is based on flexibility. A single mainframe, a variety of input and output channels, and different filter options make the system highly customizable, as you can configure your conditioning amplifier to suit your needs. You can have acoustic and vibration inputs in the same mainframe with one, two, three or four independent input channels.
The
NEXUS
units you already own can also be reconfigured if your requirements change. For example, if you have a 1-channel charge conditioning amplifier, it can be upgraded to a 2-channel charge/2- channel microphone conditioning amplifier. In addition, a selection of optional filters can be installed in each channel module upon request.
Microprocessors are used for control, display and interfacing purposes, but the signal is analogue to obtain optimum signal/ noise ratio and the lowest possible distortion. NEXUS supports transducers with transducer electronic data sheets (TEDS) according to IEEE 1451.4.
Uses
• Specially suited for automotive use. Developed in association with major car manufacturers, for high-quality field and laboratory measurement systems
• For use with charge accelerometers, hydrophones, force transducers, condenser microphones, CCLD* accelerometers, CCLD preamplifiers, voltage input and sound intensity probes
• Field recording of vibration and acoustic signals
• Specially suitable for applications where shocks and impulses occur such as gas turbine testing and munitions testing (Types 2692-C and -D only)
Features
• High input signal range, low noise and extensive overload facilities
• Supports transducers with TEDS according to IEEE 1451.4
• Available for: charge, microphone, sound intensity, CCLD and very high input
• Compact robust design and battery operation makes it also suitable for use in the field
• Serial control interface (RS–232) allows for computer control of set-up and test functions. A large number of amplifiers can be controlled from a single PC
• High accuracy due to reliable construction and a wide range of calibration options. Patented Charge Injection Calibration (CIC) and the patented Mounted Resonance Test (MRT) are built-in
• Wide range of filters that can be set up for specific tasks
For more details please see Bruel & Kjaer website.
Included:
CD-ROM for NEXUS Setup and Control Software
AO-1440: RS–232 interface cable
Power Adapter
Batteries
Manual
Please note: Item is brand new never used but was stored out of box in locked cabinet for two years. Box serial number does not match serial number on unit due to this.
If you have any issues please let me know right away and I will make it right. Thank you for your business.