MEAS2/1 + MEA Switch USB Manual
Information in this document is subject to change without notice. No part of this document may be reproduced or transmitted without the express written permission of Multi Channel Systems MCS GmbH. While every precaution has been taken in the preparation of this document, the publisher and the author assume no responsibility for errors or omissions, or for damages resulting from the use of information contained in this document or from the use of programs and source code that may accompany it.
Table of Contents Introduction About this Manual Scope of Delivery 1 1 1 Important Information and Instructions Operator's Obligations Guarantee and Liability Important Safety Advice 3 3 3 4 First Use of the MEA Switch Welcome to the MEAS2/1 Installing the Software Setting Up and Connecting the MEAS2/1 5 5 6 6 Operating the MEA Switch Controlling the MEAS2/1 Toggling Channels Printing the Channel Assignment 9 9 11 11 Troubleshooting About Troubleshooting No Connection Problems with Single Channels
1 Introduction 1.1 About this Manual This manual comprises all important information about the first installation and the proper usage of the MEAS2/1. It is assumed that you have a basic understanding of technical terms, but no special skills are required to read this manual. Make sure you read the "Important Information and Instructions" prior to install or to operate the MEAS2/1 . 1.2 Scope of Delivery 1 MEAS2/1 main device 1 USB 2.
2 Important Information and Instructions 2.
MEAS2/1 + MEA Switch USB Manual 2.3 Important Safety Advice Warning: Make sure to read the following advice prior to installations of the device. If you do not fulfill all requirements stated below, this may lead to malfunctions, breakage, or even fatal injuries. Obey always the rules of local regulations and laws. Only qualified personnel should be allowed to perform laboratory work. Work according to good laboratory practice to obtain best results and to minimize risks.
3 First Use of the MEA Switch 3.1 Welcome to the MEAS2/1 The MEAS2/1 allows to acquire data from 60 single channels from two 60 channel amplifiers. If you have a 128-channel MC_Card or an USB-ME128-System, you can even pick 128 channels in total from two MEA pairs with the MEAS4/2 for four amplifiers. Selected channels are combined to a single electrode raw data stream that is delivered to the MC_Card or to an USB based data acquisition of the computer by a 68-pin MCS high grade cable.
MEAS2/1 + MEA Switch USB Manual 3.2 Installing the Software System requirements Software: One of the following Microsoft Windows ® operating systems is required: Windows 7, XP or Vista with NTFS (English and German versions supported). Other language versions may lead to software errors. Hardware: Free USB port Installing the software Please check the system requirements before installing the software.
First Use of the MEA Switch 7
4 Operating the MEA Switch 4.1 Controlling the MEAS2/1 The 120 channels from two 60 channel amplifiers are reduced to 60 channels. You can decide from which of the two amplifiers a channel should be picked. The channel selection is mutually exclusive, that means, channels with the same channel number, for example No. 21, cannot be picked from both amplifiers. If you use a MC_Card with 128 channels or an USB-ME128-System, you can use a MEAS4/2 for two pairs of 60 channel amplifiers.
MEAS2/1 + MEA Switch USB Manual Channel Settings: The electrode channels colored in green are active (On), that means, they are detected in MC_Rack. The electrode channels colored in red are inactive (Off). The non selected channels appear in grey (N/A). Start data acquisition program, for example, MC_Rack. In MC_Rack choose in the Channel Layout dialog in Source Layout: 2 dim. MEA The MC_Rack data display shows the MEA standard grid 8 x 8.
Operating the MEA Switch 4.2 Toggling Channels Each channel of the data stream is either assigned to the left or the right MEA. You cannot select the same channel from both MEAs. The buttons represent single channels and have a toggle function. Click a button to activate or deactivate a channel. Non-selected channels appear in grey. The MEAS2/1 does not replace a Signal Grounding unit. That means, the channels that are not selected are only removed from the input data stream, but they are not grounded.
5 Troubleshooting 5.1 About Troubleshooting The following hints are provided to solve special problems that have been reported by users. Most problems occur seldom and only under specific circumstances. Please check the mentioned possible causes carefully when you have any trouble with the product. In most cases, it is only a minor problem that can be easily avoided or solved. If the problem persists, please contact your local retailer. The highly qualified staff will be glad to help you.
MEAS2/1 + MEA Switch USB Manual 5.3 Problems with Single Channels You are not able to record signals from one MEA amplifier on single channels. You may also see wrong signals on single channels due to a crosstalk between different channels. Possible causes: ? This can happen if the 68-pin MCS standard connectors are not carefully plugged into the MEAS2/1. Single pins may have a bad connection.
6 Appendix 6.1 Technical Specifications Operating temperature 10 - 40 °C Storage temperature 0 - 50 °C Dimensions (W x D x H) 220 mm x 235 mm x 52 mm Weight 950 g Supply voltage +/- 6 V (min +/- 5.
MEAS2/1 + MEA Switch USB Manual 6.3 Contact Information Local retailer Please see the list of official MCS distributors on the MCS web site. User forum The Multi Channel Systems User Forum provides the opportunity for you to exchange your experience or thoughts with other users worldwide. Newsletter If you are subscribed to the newsletter, you will be automatically informed about new software releases, upcoming events, and other news on the product line.
7 Index 17
MEAS2/1 + MEA Switch USB Manual B Buttons channel buttons ................................11 C Channel Assignment Printing ..............................................11 Channels Toggling ............................................11 Choosing channels.............................................11 Connecting Contact Information 6 16 F Failed 9 I Installing Hardware.............................................6 Software ..............................................
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