OMNITRONIC ZD-250B Zone Mixer Instruction Manual

: June 9, 2024
: OMNITRONIC

Table of Contents

OMNITRONIC ZD-250B Zone Mixer Instruction Manual
1. Introduction
Product Features
2. Safety Instructions
3. Operating Determinations
4. Operating Elements and Connections
5. Setup
6. Cleaning and Maintenance
7. Technical Specifications
- References
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OMNITRONIC ZD-250B Zone Mixer Instruction Manual

OMNITRONIC ZD-250B Zone Mixer

ZONE DISTRIBUTOR
TECHNOLOGY DESIGNED FOR PLEASURE
WWW.OMNITRONIC.DE

1. Introduction

The ZD-250 distributes two line signals to five outputs. Each zone has separate level controls, signal and clip indicators and can be switched between stereo and mono operation. Thus it is possible to e.g. apply two stereo signals to up to five amplifiers and to individually adjust the volume. The device provides XLR connectors and is designed for rack mounting.

This user manual will show you how to install and operate the device. Users of this product are recommended to carefully read all warnings in this manual and on the unit in order to protect yourself and others from damage.

This user manual is valid for item number: 10304110 and 10304111. Please save this document for future needs and pass it on to further owners.

Product Features

Practical distributor with 2 inputs and 5 outputs
Extends every mixer with additional outputs
2 stereo XLR inputs
5 stereo zone outputs (XLR)
Each zone with level control and mono switch
LED display of signal input, distortion and mono/stereo mode
Rack installation with 1 U

FIG 1 QR CODE

www.omnitronic.de
For product updates, documentation, software and support please visit www.omnitronic.de. You can find the latest version of this user manual in the product’s download section.

© 2022 OMNITRONIC. All rights reserved.
No part of this document may be reproduced in any form without the written permission of the copyright owner. The contents of this document are subject to revision without notice due to continued progress in methodology, design, and manufacturing.

All trademarks mentioned herein are the property of their respective owners.

D00141942, version 1.1, publ. 11/08/2022

2. Safety Instructions

**Caution!**
Keep this device away from rain and moisture!

Caution!
Be careful with your operations. With a dangerous voltage you can suffer a dangerous electric shock when touching the wires!

This device has left our premises in absolutely perfect condition. In order to maintain this condition and to ensure a safe operation, it is absolutely necessary for the user to follow the safety instructions and warning notes written in this user manual. Damages caused by the disregard of this user manual are not subject to warranty. The dealer will not accept liability for any resulting defects or problems.

Unpacking

Please make sure that there are no obvious transport damages. Should you notice any damages, do not take the device into operation and immediately consult your local dealer.
Save the package and all packing materials. In the event that a fixture must be returned to the factory, it is important that the fixture be returned in the original factory box and packing.

Protection Class

This device falls under protection class I. The power plug must only be plugged into a protection class I outlet. The voltage and frequency must exactly be the same as stated on the device. Wrong voltages or power outlets can lead to the destruction of the device and to mortal electrical shock.

Power Cord

Always plug in the power plug least. The power plug must always be inserted without force. Make sure that the plug is tightly connected with the outlet.
Never let the power cord come into contact with other cables! Handle the power cord and all connections with the mains with particular caution! Never touch them with wet hands, as this could lead to mortal electrical shock.
Never modify, bend, strain mechanically, put pressure on, pull or heat up the power cord. Never operate next to sources of heat or cold. Disregard can lead to power cord damages, fire or mortal electrical shock.
The cable insert or the female part in the device must never be strained. There must always be sufficient cable to the device. Otherwise, the cable may be damaged which may lead to mortal damage.
Make sure that the power cord is never crimped or damaged by sharp edges. Check the device and the power cord from time to time.
If extension cords are used, make sure that the core diameter is sufficient for the required power consumption of the device. All warnings concerning the power cords are also valid for possible extension cords.
Always disconnect from the mains, when the device is not in use or before cleaning it. Only handle the power cord by the plug. Never pull out the plug by tugging the power cord.
Otherwise, the cable or plug can be damaged leading to mortal electrical shock. If the power plug or the power switch is not accessible, the device must be disconnected via the mains.
If the power plug or the device is dusty, the device must be taken out of operation, disconnected and then be cleaned with a dry cloth. Dust can reduce the insulation which may lead to mortal electrical shock. More severe dirt in and at the device should only be removed by a specialist.

Liquids

There must never enter any liquid into power outlets, extension cords or any holes in the housing of the device. If you suppose that also a minimal amount of liquid may have entered the device, it must immediately be disconnected. This is also valid, if the device was exposed to high humidity. Also if the device is still running, the device must be checked by a specialist if the liquid has reduced any insulation. Reduced insulation can cause mortal electrical shock.

Foreign Objects

There must never be any objects entering into the device. This is especially valid for metal parts. If any metal parts like staples or coarse metal chips enter into the device, the device must be taken out of operation and disconnected immediately. Malfunction or short circuits caused by metal parts may cause mortal injuries.

3. Operating Determinations

The ZD-250 is used to distribute two line signal sources. It has been specially designed for professional applications.

Power Supply

Only connect the device to a properly installed mains outlet. The outlet must be protected by residual current breaker (RCD). The voltage and frequency must exactly be the same as stated on the device. If the mains cable is equipped with an earthing contact, then it must be connected to an outlet with a protective ground. Never deactivate the protective ground of a mains cable. Failure to do so could possibly injure the user.

Installation

Do not shake the device. Avoid brute force when installing or operating the device. When choosing the installation spot, please make sure that the device is not exposed to extreme heat, moisture or dust. There should not be any cables lying around. You endanger your own and the safety of others!

Taking into Operation

Operate the device only after having familiarized with its functions. Do not permit operation by persons not qualified for operating the device. Most damages are the result of unprofessional operation!

Ambient Conditions

The ambient temperature must always be between -5° C and +45° C. Keep away from direct insulation (particularly in cars) and heaters. The relative humidity must not exceed 50 % with an ambient temperature of 45° C.
This device must only be operated in an altitude between -20 and 2000 m over NN.
Never use the device during thunderstorms. Over voltage could destroy the device. Always disconnect the device during thunderstorms.
This device must never be operated or stockpiled in surroundings where splash water, rain, moisture or fog may harm the device. Moisture or very high humidity can reduce the insulation and lead to mortal electrical shocks.
When using smoke machines, make sure that the device is never exposed to the direct smoke jet and is installed in a distance of 0.5 meters between smoke machine and device.

Transport

Please use the original packaging if the device is to be transported.

Cleaning and Service

Disconnect from mains before cleaning! Never use solvents or aggressive detergents in order to clean the device! Rather use a soft and damp cloth.
There are no serviceable parts inside the device except for the fuse. Maintenance and service operations are only to be carried out by authorized dealers! Should you need any spare parts, please use genuine parts.

Modifications and Guarantee

Please consider that unauthorized modifications on the speaker system are forbidden due to safety reasons!
If this device will be operated in any way different to the one described in this manual, the product may suffer damages and the guarantee becomes void. Furthermore, any other operation may lead to dangers like short-circuit, burns, electric shock, etc.

WEEE Directive

If the unit is to be put out of operation definitively, take it to a local recycling plant for a disposal which is not harmful to the environment. Do not dispose of as municipal waste. Contact your retailer or local authorities for more information.

4. Operating Elements and Connections

Front panel

FIG 2 Front panel

Rear panel

FIG 3 Rear panel

5. Setup

Installation
Install the unit on a plane surface or in your rack. For 19″ (483 mm) rack installation, 1 unit is required. When mounting the unit into the rack, please make sure that there is enough space around the device so that the heated air can be passed on. Steady overheating will damage your device. You can fix the unit with four screws M6 in the rack.

Cable connections
The distributor can be inserted as required, e. g. between a mixer or audio source and up to five power amplifiers. To avoid interfering noise, switch off the distributor or set the output controls to minimum prior to connecting and disconnecting equipment. The inputs and outputs can be connected balanced via XLR plugs. The output level of the signal sources must be on line level. Be sure to use only high-grade cables. The illustrations below show the wiring of these cables.

FIG 4 Cable connections

Operation
To protect your audio equipment, specifically your speakers, follow this power-up sequence: Set all output volume controls of any equipment to minimum. Switch on your audio sources first, then the distributor. Always switch on amplifiers last. Then turn up the volume controls on your audio sources (if provided) and set the output volume controls of the distributor to a low level. Turn up the volume controls of your amplifiers slowly. Make adjustments to all volume settings at the distributor as needed. If the CLIP indicator lights permanently, reduce the level accordingly. For switching off, follow the inverse sequence: always switch off amplifiers first, then the distributor and then the audio source.

6. Cleaning and Maintenance

Disconnect from mains before starting maintenance operation! We recommend a frequent cleaning of the device. Please use a soft lint-free and moistened cloth. Never use alcohol or solvents!

There are no serviceable parts inside the device except for the fuse. Maintenance and service operations are only to be carried out by authorized dealers.

If the fine-wire fuse of the device fuses, only replace the fuse by a fuse of same type and rating. Before replacing the fuse, unplug mains lead.

Should you need any spare parts, please use genuine parts. If the power supply cable of this device becomes damaged, it has to be replaced by a special power supply cable available at your dealer.

Should you have further questions, please contact your dealer.