Thomann RTA-31 User Manual

RTA-31

User manual

spectrum analyser

Musikhaus Thomann

Thomann GmbH

Hans-Thomann-Straße 1

96138 Burgebrach

Germany

Telephone: [phone]

E-mail: [e-mail]

Internet: www.thomann.de

24.09.2019, ID: 471960

Table of contents

Table of contents

1 General information................................................................................................................................. 4

1.1 Further information........................................................................................................................... 5

1.2 Notational conventions.................................................................................................................... 6

1.3 Symbols and signal words............................................................................................................... 6

2 Safety instructions..................................................................................................................................... 8

3 Features....................................................................................................................................................... 14

4 Installation.................................................................................................................................................. 15

5 Connections and controls................................................................................................................... 16

6 Technical specications....................................................................................................................... 18

7 Plug and connection assignment.................................................................................................... 19

8 Protecting the environment.............................................................................................................. 22

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General information

1 General information

This user manual contains important information on the safe operation of the device. Read and
follow all safety notes and all instructions. Save this manual for future reference. Make sure
that it is available to all persons using this device. If you sell the device to another user, be sure
that they also receive this manual.

Our products and user manuals are subject to a process of continuous development. We there‐
fore reserve the right to make changes without notice. Please refer to the latest version of the
user manual which is ready for download under www.thomann.de.

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1.1 Further information

General information

On our website (www.thomann.de) you will nd lots of further information and details on the
following points:

Download This manual is also available as PDF le for you to download.

Keyword search

Online guides

Personal consultation For personal consultation please contact our technical hotline.

Service

Use the search function in the electronic version to nd the topics of
interest for you quickly.

Our online guides provide detailed information on technical basics
and terms.

If you have any problems with the device the customer service will
gladly assist you.

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General information

1.2 Notational conventions

This manual uses the following notational conventions:

Letterings

The letterings for connectors and controls are marked by square brackets and italics.

Examples: [VOLUME] control, [Mono] button.

1.3 Symbols and signal words

In this section you will nd an overview of the meaning of symbols and signal words that are
used in this manual.

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General information

Signal word Meaning

DANGER! This combination of symbol and signal word indicates an

immediate dangerous situation that will result in death or
serious injury if it is not avoided.

NOTICE! This combination of symbol and signal word indicates a pos‐

sible dangerous situation that can result in material and
environmental damage if it is not avoided.

Warning signs Type of danger

Warning – high-voltage.

Warning – danger zone.

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Safety instructions

2 Safety instructions

Intended use

This device is used for analysing an incoming audio signal in separate frequency bands, that
are made available at the outputs. Use the device only as described in this user manual. Any
other use or use under other operating conditions is considered to be improper and may result
in personal injury or property damage. No liability will be assumed for damages resulting from
improper use.

This device may be used only by persons with sucient physical, sensorial, and intellectual
abilities and having corresponding knowledge and experience. Other persons may use this
device only if they are supervised or instructed by a person who is responsible for their safety.

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Safety

Safety instructions

DANGER!
Danger for children

Ensure that plastic bags, packaging, etc. are disposed of properly and are not
within reach of babies and young children. Choking hazard!

Ensure that children do not detach any small parts (e.g. knobs or the like) from
the unit. They could swallow the pieces and choke!

Never let children unattended use electrical devices.

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Safety instructions

DANGER!
Electric shock caused by high voltages inside

Within the device there are areas where high voltages may be present. Never
remove any covers.

There are no user-serviceable parts inside.

Do not use the device if covers, protectors or optical components are missing or
damaged.

DANGER!
Electric shock caused by short-circuit

Always use proper ready-made insulated mains cabling (power cord) with a pro‐
tective contact plug. Do not modify the mains cable or the plug. Failure to do so
could result in electric shock/death or re. If in doubt, seek advice from a regis‐
tered electrician.

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Safety instructions

NOTICE!
Risk of re

Do not block areas of ventilation. Do not install the device near any direct heat
source. Keep the device away from naked ames.

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Safety instructions

NOTICE!
Operating conditions

This device has been designed for indoor use only. To prevent damage, never
expose the device to any liquid or moisture. Avoid direct sunlight, heavy dirt, and
strong vibrations.

Only operate the device within the ambient conditions specied in the chapter
‘Technical specications’ of this user manual. Avoid heavy temperature uctua‐
tions and do not switch the device on immediately after it was exposed to tem‐
perature uctuations (for example after transport at low outside temperatures).

Dust and dirt inside can damage the unit. When operated in harmful ambient
conditions (dust, smoke, nicotine, fog, etc.), the unit should be maintained by
qualied service personnel at regular intervals to prevent overheating and other
malfunction.

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Safety instructions

NOTICE!
Power supply

Before connecting the device, ensure that the input voltage (AC outlet) matches
the voltage rating of the device and that the AC outlet is protected by a residual
current circuit breaker. Failure to do so could result in damage to the device and
possibly injure the user.

Unplug the device before electrical storms occur and when it is unused for long
periods of time to reduce the risk of electric shock or re.

NOTICE!
Possible staining

The plasticiser contained in the rubber feet of this product may possibly react
with the coating of your parquet, linoleum, laminate or PVC oor and after some
time cause permanent dark stains.

In case of doubt, do not put the rubber feet directly on the oor, but use felt-pad
oor protectors or a carpet.

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Features

3 Features

n Stereo in and outputs: either as

2 XLR analogue inputs to 2 XLR analogue outputs, or as
2 RCA analogue inputs to 2 RCA analogue outputs

n Real-time display of frequency levels in 31 bands
n 31 displays with each 11 green LEDs and 1 red LED as peak indicator
n Adjustable brightness and sensitivity for the input signal
n Solid metal housing, 19" rack-mountable (1 RU)

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4 Installation

Installation

Unpack and check carefully there is no transportation damage before using the unit. Keep the
equipment packaging. To fully protect the product against vibration, dust and moisture during
transportation or storage use the original packaging or your own packaging material suitable
for transport or storage, respectively.

Create all connections while the device is o. Use the shortest possible high-quality cables for
all connections. Take care when running the cables to prevent tripping hazards.

Rack mounting

The unit has been designed for rack mounting in a standard 19-inch rack; it occupies one rack
unit.

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Connections and controls

5 Connections and controls

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1 [POWER] / [ON] / [OFF]

Mains switch to turn the device on and o.

2 Displays

3 [DIMMER]

Adjusts the brightness of the LEDs in the displays.

4 [SENSITIVITY]

Adjusts the signal input sensitivity.

5 IEC chassis plug C14

6 Microphone / Line outputs, designed as XLR sockets

7 Microphone / Line outputs, designed as RCA sockets

8 Microphone / Line inputs, designed as XLR sockets

9 Microphone / Line inputs, designed as RCA sockets

Connections and controls

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Technical specications

6 Technical specications

Input connections Voltage supply IEC chassis plug C14

Mic/Line 2 × XLR socket

Mic/Line 2 × RCA socket

Output connections Mic/Line 2 × XLR socket

Mic/Line 2 × RCA socket

Operating supply voltage

Mounting properties 19 inch, 1 RU

Dimensions (W × H × D) 482 mm × 44 mm (1 RU) × 130 mm

Weight 1.4 kg

Ambient conditions Temperature range 0 °C…40 °C

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90 – 260 V 50/60 Hz

Relative humidity 50 %, non-condensing

7 Plug and connection assignment

Plug and connection assignment

Introduction

Balanced and unbalanced trans‐
mission

This chapter will help you select the right cables and plugs to connect your valuable equip‐
ment in such a way that a perfect sound experience is ensured.

Please note these advices, because especially in ‘Sound & Light’ caution is indicated: Even if a
plug ts into the socket, an incorrect connection may result in a destroyed power amp, a short
circuit or ‘just’ in poor transmission quality!

Unbalanced transmission is mainly used in semi-professional environment and in hi use.
Instrument cables with two conductors (one core plus shielding) are typical representatives of
the unbalanced transmission. One conductor is ground and shielding while the signal is trans‐
mitted through the core.

Unbalanced transmission is susceptible to electromagnetic interference, especially at low
levels, such as microphone signals and when using long cables.

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Plug and connection assignment

XLR plug (balanced)

In a professional environment, therefore, the balanced transmission is preferred, because this
enables an undisturbed transmission of signals over long distances. In addition to the conduc‐
tors ‘Ground’ and ‘Signal’, in a balanced transmission a second core is added. This also transfers
the signal, but phase-shifted by 180°.

Since the interference aects both cores equally, by subtracting the phase-shifted signals, the
interfering signal is completely neutralized. The result is a pure signal without any noise inter‐
ference.

1 Ground, shielding

2 Signal (in phase, +)

3 Signal (out of phase, –)

4 Shielding on plug housing (option)

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XLR plug (unbalanced)

Plug and connection assignment

1 Ground, shielding

2 Signal

3 Bridged to pin 1

RCA connection

Drawing and table indicate the pin assignment of an RCA plug.

1 Signal

2 Ground, shielding

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Protecting the environment

8 Protecting the environment

Disposal of the packaging mate‐
rial

For the transport and protective packaging, environmentally friendly materials have been
chosen that can be supplied to normal recycling.

Ensure that plastic bags, packaging, etc. are properly disposed of.

Do not just dispose of these materials with your normal household waste, but make sure that
they are collected for recycling. Please follow the notes and markings on the packaging.

Disposal of your old device

This product is subject to the European Waste Electrical and Electronic Equipment Directive
(WEEE) in its currently valid version. Do not dispose with your normal household waste.

Dispose of this device through an approved waste disposal rm or through your local waste
facility. When discarding the device, comply with the rules and regulations that apply in your
country. If in doubt, consult your local waste disposal facility.

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Musikhaus Thomann · Hans-Thomann-Straße 1 · 96138 Burgebrach · Germany · www.thomann.de