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esca User’s Manual v1.2 

 

 

 

 

To obtain the best noise performances a particular care must be given to the shielding 
with a metallic cage (Faraday cage) all around the experimental setup. In particular, it 
is important to connect the Faraday cage to the ground connector placed on the rear of 
ESCA. 

In  order  to  minimize  the  noise  it  is  also  important  to  minimize  parasitic  capacitances 
between the input and the shielding by keeping the wires as short as possible and as 
far as possible from the Faraday cage, including your Device Under Test (DUT). 

With certain  PC, there can be some issues with USB power supply that can introduce 
noise  and  peaks  on  the  acquired  signal.  In  these  cases  we  recommend  to  use  a 

powered USB 2.0 hub

This is an example of a real setup for artificial lipid bilayer experiments: 

 

S

OFTWARE 

G

UIDE

 

 

Elements  Data  Reader  (EDR)  is  the  control  software  for  ESCA  devices.  It  enables  the 
total control of ESCA devices features (such as set the data acquisition properties and 
the control voltage) and enables the real time data visualization and data saving. Data 
acquired by means of this custom software are handily readable by Matlab® and can 

Summary of Contents for esca

Page 1: ...esca Elements Single Channel Amplifier User s Manual v1 2 February 2014...

Page 2: ...esca User s Manual v1 2 CONTACTS Elements s r l via Montalti 42 47521 Cesena ITALY email info elements ic com web www elements ic com...

Page 3: ...SETUP 4 Front Connections 5 Rear Connections 5 Tipical Experimental Setup 5 SOFTWARE GUIDE 6 Requirements 7 Installation 7 Software Operating Procedure 9 Graphical User Interface 10 ESCA Setup 11 Digi...

Page 4: ...all size 30x15x74mm software included HARDWARE SETUP ESCA is designed to be as simple as possible to connect to your various different setups In order to obtain the best performance the main things to...

Page 5: ...ct is the reference voltage IMPORTANT Do NOT short the reference to the ground REAR CONNECTIONS On the rear of ESCA there are two connectors mini B female USB connector to connect to the PC through th...

Page 6: ...ssible from the Faraday cage including your Device Under Test DUT With certain PC there can be some issues with USB power supply that can introduce noise and peaks on the acquired signal In these case...

Page 7: ...ements are Dual core processor 1GHz or better 1GB of RAM A free USB 2 0 port Windows XP Vista Seven 8 INSTALLATION To start the installation procedure double click on the installation executable EDR_s...

Page 8: ...esca User s Manual v1 2 Click on Extract to prepare the installation of these drivers Then start the FTDI installation by clicking on Next button and wait until installation finishes...

Page 9: ...ree USB port The first time you connect the ESCA to your PC you must wait for the new USB device complete recognition NOTE If the blue LED in the rear of ESCA doesn t light up or if you receive an ins...

Page 10: ...with the ESCA hardware The configuration file is loaded by clicking on the Open Config button The configuration file is ESCA_xxx cfg where xxx is the firmware version of your ESCA device The configura...

Page 11: ...addition to the Open Config button already described in the previous section the following buttons Connect Starts the communication with the ESCA hardware Show Displays the data visualization window...

Page 12: ...the next section the digital compensation is described The Triangular Wave check box is used to force a 48 Hz triangular wave control voltage of peak to peak amplitude of 118 mVpp This voltage signal...

Page 13: ...software includes some statistical data analysis done in real time during the current acquisitions These estimated statistic data are Mean value Standard Deviation STD Equivalent input capacitance Equ...

Page 14: ...on the R estimation button The Saturation indicator means the input current exceeded the maximum or minimum current value for the selected Range TRACE VISUALIZATION The data visualization is based on...

Page 15: ...om level Set vertical 0 point in the middle of the window Change the grid dimensions Change the vertical offset shift Change the horizontal offset shift Search for a channel NB useless with ESCA devic...

Page 16: ...mat used by commercial pClamp software from Molecular Devices First choose which format will be used by clicking on File Preferences To start saving data click on the Save button The data are saved in...

Page 17: ...es are stored in standard 32 bit single precision format little endian The ESCAread Matlab function will ask you the location of the saved data files and the data bandwidth The function returns in thr...

Page 18: ...an array with 2 columns 1 channels vc C reshape B 1 2 fix length B 2 2 D C select sampling frequency display Select bandwidth display 1 625 Hz display 2 1 25 kHz display 3 5 kHz display 4 10 kHz sel i...

Page 19: ...esca User s Manual v1 2...

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