SPL-Laboratory Next-LCD 2015 Manuale utente

Next-LCD

User Manual

Multifunctional Portative Spectrum Analyzer

2015

Kirill Berezin

Spl-Lab

20.02.2015

Table of Contents

Table of Contents ............................................................................................................................2

General Information ........................................................................................................................3

Ergonomics..................................................................................................................................4

Package Contents.........................................................................................................................4

Working with the device..................................................................................................................5

Important safety information:......................................................................................................5

Identifying the functional parts of the device:.............................................................................6

Charging the battery of the device...............................................................................................7

Starting work and configuring the device....................................................................................7

Connecting to PC via the USB port.............................................................................................8

Connecting to PC via the Wireless network................................................................................8

Operation modes..........................................................................................................................9

The generator mode GEN..............................................................................................................10

SPL Measuring Mode....................................................................................................................11

Spectrum....................................................................................................................................11

Signal waveform........................................................................................................................12

Digitized data.............................................................................................................................12

AVG Measuring Mode..................................................................................................................14

RTA Measuring Mode...................................................................................................................15

Spectrum....................................................................................................................................15

Signal waveform........................................................................................................................16

PWR Measuring Mode..................................................................................................................17

Description of the CD tracks.........................................................................................................18

General Information

The Next-LCD is a completely autonomous, all-purpose measuring device. All measured

characteristics are displayed as digits and graphs on-screen. The closed software environment of

the device eliminates inaccurate readings. The device has two Lab-Bus digital bus ports to which

the pressure sensors, microphones or power sensors can be connected. All this makes Next-LCD

an all-purpose and completely cascadable tool. When a user purchases, for example, the set for

measuring sound pressure, in the future, they can supplement it with the microphone for

measuring AFC or with the power sensor for measuring current and voltage. Simultaneous work

with two signal sources is possible. The internal sound signal generator of different waveforms

(sine, white noise, pink noise) works in background mode alongside the process of measuring.

The Next-LCD can be connected to a PC for controlling the device and transmitting data via

USB, for example, when it is necessary to display the measurement results on a big screen. The

device can be fitted with the built-in Wi-Fi module for connecting to Wireless networks which

allows transmitting the measurement data for long distances via the Internet in real time mode.

Ergonomics

The Next-LCD device is performed as a monoblock that has graphic display with back light, 8

control buttons, USB port for connecting to a PC and charging the device, two Lab-Bus ports for

connecting sensors, two RCA type outputs of the sound signal generator, feed switch and three-

coloured LED for indicating status and extent of battery charge. The device can be supplied with

the built-in Wi-Fi module for connecting and managing via the local network. The case of the

device is made of shockproof plastic material.

Package Contents

Main unit

USB connection cable for charging and connecting it to a PC

Spl-Lab Measuring Center software for Windows

Audio-CD with audio tracks for tuning (sine, sweep-tones, noise)

Case for carrying around and storing (optional)

Working with the device

Important safety information:

！The manufacturer does not bear responsibility for damage caused directly or indirectly as a

result of improper device use.

！Before using the device, examine its case for cracks and splits, because any depressurization

of the device will result in it’s possible failure.

！To avoid the risk of electric shock, all the connector cables should not have insulation defects.

！Avoid measuring load beyond the maximum limit.

！All operations of connecting and disconnecting connection cables should be performed with

equipment switched off.

！Do not use or store the device in areas with high humidity or heat, as well as, close to the

devices, generating strong magnetic field.

！During preventive maintenance of the device, do not use synthetic detergents and do not apply

solvents. Using wet wipes is more preferable.

！Before starting the device and a system on the whole, ensure that all the connection cables are

switched correctly.

Identifying the functional parts of the device:

No.

Element

Assignment

Display

Graphic display with automatic dimming of display backlight

Power indicator

three-coloured LED for indicating status of the device

Feed switch

the slide switch for switching the device on/off.

MODE button

for switching the device operation modes

LIGHT button

switching the display backlight on/off. Using the display

backlight decreases the device running time.

OPTION button

FUCTION button

Up button

Down button

Right button

Left button

The button assignment depends on the mode.

Lab-Bus port 2

Lab-Bus port 1

input jacks for connecting the external sensors

Output #1 and Output

#2 of the generator

RCA jacks for connecting the internal generator.

USB port

slot for connecting device to a PC or charging the device.

Charging the battery of the device

The device has an internal battery. The running time of the device depends on the intensity of

use and the type of sensors connected. For charging, please connect the device via the USB port

to the charger or PC. Consider that for full charge, the device should be switched off. Use the

three-coloured LED for estimating the extent of battery charge and status of the device

(according to the table below):

Green

Orange

Red

Glows

continuously