Soft-db Alto6 User Guide Bedienungsanleitung PDF herunterladen (Seite 3)

Alto-6ch Hardware User Guide – V1.0 2

1 Introduction

Congratulations on your purchase of the Alto-6ch unit.

The Alto-6ch is a compact rugged case with an embedded state of the art Soft dB SR-MK3 DSP board allowing

real-time and precise measurement with low energy consumption. Connected to a PC, the Alto-6ch provides

a complete toolbox for acoustic and vibration measurements at a very competitive price.

2 Features

• 6 24-bit analog inputs, ± 1.5 volt

• Support DC inputs, AC inputs and ICP inputs (for preamplified ICP sensors)

• 24-bit analog outputs, ± 2 volts

• USB communication to a PC or optional Ethernet communication

• External 15 volts power supply (provided). Also works at 12 volts DC.

• Internal rechargeable battery (approx. 3 hours life)

• LCD screen and buttons interface to visualize the measurement levels.

• Compatible with the OPUS

Suite software, which provides a wide selection of modules for acoustic

and vibration measurements (www.softdb.com/acoustic-products-opus-suite.php)

3 Hardware specification

Real time

bandwidth

DC to 24 kHz @ 6 channels

(Up to 48 kHz on 2 channel)

Communication

USB 2.0 (mini USB)

& Eternet (RJ45)

Input range

±1.5 V

Analog IOs

Connector type

Lemo ERA.0S.116

mating FFA.0S.116.CTAC

Linear Dynamic

Range

94 dBA

(25 to 119 dBA @ 50mV/Pa)

Display

Monochrome (42x14mm)

THD + noise

> 90 dB@ 1/4 dynamic range

Keypad

Silicon “quiet touch”

Cross talk

> 115 dB @ 1kHz

Dimension

190x135x35mm

Random noise

< 14 μV(A), < 17 μV(Z) @ 0.1 Hz

Weight

2 lb. 950 g.

Max Input voltage

12 Vpk-pk

Power Supply

12-15 volt; 15 W

Input types

DC, AC and ICP

External power

connector

Switchcraft L722A mating S761K

(2.1mm ID, 5.5mm OD)

ICP input Power

4mA

Internal Battery

7.2 volt, 2600 mAh

Output range

± 2 V

Battery Life

Approx. 3 hours

1 2 3 4 5 6

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