Owner's manual

1 Introduction

Congratulations on your purchase of the Opus Suite Data Logger module.

The Opus Software Suite is a Sound and Vibration software. The current version contains six

measurement modules:

• SLM 4-ch module : 4-channels, Class 1 (IEC 61672 and ANSI S1.43)

• SLM & 3Vib module : 1 SLM channel (same as SLM 4-ch module) and 3 vibration channels

(ISO 8041 and ISO 2631)

• Data Logger module

• Building Acoustic module

• Sound Transmission (ASTM E 336/ISO 140-4)

• Reverberation Time (ISO 3382)

• Speech Privacy (ASTM E 2638 and ASTM E 1130)

• Building Vibration module (DIN 45669-1 and ANSI S2.46)

• Intensity module (IEC 1043)

The Opus Suite is intended to run on a Concerto. The software can also be installed on a computer if

an Alto-6ch or an I-Track unit is connected. Moreover, some post-processing functions are available

on a PC even if no compatible unit is detected.

The current user’s manual presents the Data Logger Module.

General Specifications

4 analog inputs

Real-time acquisition and recording into .wav file format

Sampling rate from 4 kHz to 48 kHz

2 input dynamic ranges: +/-1.5 V and +/-6 V

24 bit resolution, 100 dB signal-to-noise ratio

3 input types: Direct DC, Direct AC and ICP

2 analog output

Multi-Tone, White Noise and Pink Noise generator mixable on

the 2 outputs

Output dynamic range: +/-3 V

Real-time display

Time Signal, Time History, FFT spectrum (instant, exponential

fast, exponential slow and average).

1 or 2 graphs display with 2 plots per graph.

In a Concerto unit, the range of inputs 1 and 2 are selectable but the range of inputs 3 and 4 are fixed at +/-

1.5 V.