3630-A Sound Level Meter Calibration System

The calibration of sound level meters is heavily driven by legislative requirements. As the number of instruments requiring calibration increases, so the need for an efficient calibration system becomes more and more obvious.

Sound Level Meter (SLM) Calibration System for Type 3630 complies with all relevant international standards and recommendations and is equally well suited for use in national calibration laboratories and commercial calibration centres. The system combines state-of-the-art IT with Brüel & Kjær’s proven experience in the calibration of instrumentation for sound and vibration measurement.

SLM Calibration System Type 3630-A is not just an effective tool. The fact that the system is globally supported, easy to recalibrate and, not least, comes with a comprehensive user manual (that even includes the uncertainty budgets needed for accreditation purposes), means that customers get an impressive package for their investment.

Product Data

Uses

Acoustical and electrical calibration of sound level meters to international standards

Features

Automatic, semi-automatic or manual calibration of sound level meters
Runs under Microsoft® Windows®
Flexible test-execution manager
Integrated Calibration Manager’s Workbench with: – traceability control – customer database
Predefined or user-defined calibration sequences
Transparent user interface
Test signals comply with IEC 60651 and IEC 60804
IEC 61672 tests available as an upgrade
Default acceptance limits set in accordance with IEC-type Sound Level Meters
User-adaptable acceptance limits (OIML requirements)
Taktmaximal Tests (DIN 45657)
External electrical traceability via system’s digital voltmeter
External acoustic traceability via Multifunction Acoustic Calibrator Type 4226
Built-in system verification of measurement quality
Flexible Certificate of Calibration with detailed test report
Fully integrated in the Microsoft® Office environment

System Concept

The new generation of calibration systems from Brüel & Kjær uses the Portable PULSE™ analyzer as the core system element. Portable PULSE is a state-of-the-art, highly flexible multi-analyzer capable of analysing by FFT, 1/n-octave filters and overall levels. PULSE also generates the test signals necessary to fulfill the requirements of international standards.

The Sound Level Meter Calibration system for the Type 3630 platform is designed to calibrate Brüel & Kjær as well as other manufacturers’ sound level meters, according to IEC 60651, IEC 60804 and relevant ANSI standards. Future upgrades will cover the coming IEC 61672 standard.

Integrated Applications

Previously, different applications would typically run on dedicated, stand-alone systems. However, all applications on the new platform are fully integrated. This means that information entered just once, for example, customer information, is available to all applications which guarantees data integrity and saves you time. Furthermore, the system’s integration with the Microsoft® Office environment assures data compatibility facilitating data export for analysis.

Calibration Manager’s Workbench

Proof of traceability and control over calibration intervals for the standards and instruments used by the system is facilitated by the Calibration Manager.

Tests Performed by the Type 3630-A System

Acoustical:

Electrical:

System Description

Test Modes

Tests are performed either acoustically or electrically. During the electrical tests, the SLM’s microphone is replaced by an adaptor with the same capacitance as the microphone. The adaptor is connected to the system output. The PULSE generator produces all the electrical test signals used during the calibration.

Automatic Mode

If the SLM under test has a bus interface, then setup and reading of data from the SLM is performed...

For a full Description and Specifications, see Product Data