Summary of Contents for BIO electronica sessantaquattro
- Page 1 User Manual v 1.1 sessantaquattro Portable bioelectrical signal amplifier Read this manual carefully before using the sessantaquattro amplifier.
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Page 2: Sessantaquattro User Manual V1.1 - June
- June 2017 pag. 2... -
Page 3: Table Of Contents
END USER ..........................5 ......................... 5 ONTRAINDICATIONS ........................... 5 IDE EFFECTS SAFETY CAUTIONS AND OTHER WARNINGS ................ 6 SYMBOLS USED ON SESSANTAQUATTRO AND IN THE USER MANUAL ......... 7 TECHNICAL SPECIFICATIONS ....................8 DETAILED DESCRIPTION ....................10 ..................... 10 ONTROLS INDICATORS AND CONNECTOR 7.1.1 I... -
Page 4: General Description
The sessantaquattro is a multichannel amplifier and datalogger for bioelectrical signals. It can detect surface electromyographic (sEMG) signals and electroencephalographic (EEG) signals. The sessantaquattro allows the detection and recording of the electric signals generated by human body. The signals acquired by the instrument are amplified, filtered, digitally converted and then transferred to a PC, through a WiFi connection, for real-time visualization and storage or stored in a MicroSD card. -
Page 5: End User
- June 2017 END USER Sessantaquattro multichannel amplifier allows non invasive recording of biopotentials (sEMG, EEG) detected by superficial electrode. The end user must be familiar with the technique and received a proper training in EMG or EEG detection and interpretation. -
Page 6: Safety Cautions And Other Warnings
Contact the manufacturer immediately if extraneous materials permeate into the device (liquids, powders, etc.). In case of hard shocks suffered by the sessantaquattro (like a drop to the floor, etc.), verify that no crack or any other kind of damage of the box resulted from the shock. -
Page 7: Symbols Used On Sessantaquattro And In The User Manual
- June 2017 SYMBOLS USED ON SESSANTAQUATTRO AND IN THE USER MANUAL Class BF for circuitry applied to patient. Read carefully the instruction remarks before use. Signals input. pag. 7... -
Page 8: Technical Specifications
- June 2017 TECHNICAL SPECIFICATIONS Sessantaquattro is a battery powered device designed to guarantee an high safety level for the patient and the operator in all operating conditions. The insulation between sessantaquattro and the PC for real time data display and storage, is intrinsically achieved by the wireless data transfer and communication. - Page 9 - June 2017 Sessantaquattro technical specifications are shown in TAB. 6.2. EMG/EEG channels Number of channels Gain 1, 2, 4, 8 V/V Low pass filter SAMP High pass filter DC coupled or 10 Hz digital 4 V...
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Page 10: Detailed Description
The device can act as a WiFi acces point or connect to an existing network provided by an external access point. In both cases, sessantaquattro has an IP address where a web page can be reached using any browser, for configuration, control and firmware update. -
Page 11: On/Off Switch
MicroSD card. 7.1.4 LEDs indicators The three LEDs are used to identify the state of sessantaquattro. Each of them reflect the state of a different activity of the device: The white LED is related to the wireless data transfer... - Page 12 Using OT BioLab software the three blinks condition is never visible because the TCP socket is opened when pressing the button of data transfer and, as soon as sessantaquattro is connected to the socket, the data transfer begins. The three blinks condition can be useful for custom development in the debugging phase to understand when the TCP socket is correctly created and sessantaquattro is connected to it.
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Page 13: Start/Stop Rec Pushbutton
- June 2017 If this condition is temporary (e.g. sessantaquattro for a limited time is too far from the PC for the acquisition), and then the data transfer restart properly the red LED will stop to blink. The data loss in recorded data can in any case be verified offline by checking one of the accessory channel (see section 8.2 for additional details). -
Page 14: Use Of Sessantaquattro
The sessantaquattro can be interfaced to any computer with a network interface and running any kind of operative system. This manual refers to the use of sessantaquattro together with PC with Windows and the freeware software OT BioLab. In case a different type of operative system is used, or if the user interface needs to be customized the configuration and communication protocol of sessantaquattro is available as Matlab examples. -
Page 15: Signals
- June 2017 8.2 Signals The natively resolution of sessantaquattro is 24 bits obtained by sampling the signals with a sigma-delta A/D converter. The signals are acquired DC coupled and the only hardware filtering is a simple antialiasing filter at 154 kHz. The low pass filter is imposed by the sampling frequency and is about ¼... -
Page 16: Electrode And Recharge Adapters
CUSB01SE It is the adapter for the sessantaquattro battery recharge. The supply can be provided with a USB type C cable connected to a PC or to a wall DC adapter, like the ones used for any smartphone. - Page 17 At the same time, this electrode fix the common mode patient body potential to the midpoint of the power supply of sessantaquattro and feed the negative inputs of all the channels.
- Page 18 - June 2017 pair. Figure 8.3 shows the 3.5 mm jack pinout to interface the two electrode pair to the sessantaquattro. Pair 2 – Negative electrode Pair 1 – Negative electrode Pair 2 – Positive electrode Pair 1 –...
- Page 19 At the same time, this electrode fix the common mode patient body potential to the midpoint of the power supply of sessantaquattro and feed the negative inputs of all the channels. The acquisition of the 16 signals is natively monopolar with respect to the patient reference, but online or offline differences between signals detected from adjacent electrode can be estimated generating the differential signals.
- Page 20 - June 2017 A four pole 3.5 mm jack connector allows the simultaneously recording of two auxiliary channels together with the EMG signals. Refer to figure 8.4 for the pinout of the connection and to the description of the AD8x1SE for additional details about the auxiliary channels.
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Page 21: Wireless Data Transfer
FIG. 8.7. The AD1x64SE adapter. 8.4 Wireless data transfer Signals acquired with sessantaquattro can be read with a WiFi interface using a TCP connection. A TCP socket have to be opened by the computer (or tablet, smartphone) running OT BioLab or other custom application. -
Page 22: Microsd Data Logging
OT BioLab, to avoid undesired clicks on it. Due to the large amount of data flow to be written on the MicroSD card, sessantaquattro needs to optimize the writing process and for this reason it needs to know a maximum file size (from the web page or OT BioLab) when starting a new recording. -
Page 23: Webpage Setup
FIG. 8.8: Embedded web page of sessantaquattro when it act as access point. The internal web page can be opened typing the IP address of sessantaquattro with any browser, but Mozilla or Chrome are suggested due to few features that other browsers does not have. - Page 24 Moving the mouse ursor over this area will pop-up an explanation of that section. Few settings needs the restart of sessantaquattro to take effect. A description of each section of the web page follows. pag. 24...
- Page 25 After the settings are changed by pressing the button is in any case necessary to turn off and on the sessantaquattro to let it restart in the new configuration mode. Firmware Update The upgrade of sessantaquattro happens through a folder on dropbox. Thus, it is necessary that the sessantaquattro is connected to an external access point providing an internet access.
- Page 26 - June 2017 Access Point This section is available when the sessantaquattro act as access point. It is possible to set the WiFi channel, the serving set identifier (SSID, the name of the network) and assign a protection with a password.
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Page 27: Patient Connection
- June 2017 8.7 Patient connection Regardless of the adapter used and the detection mode, sessantaquattro need to be connected to the patient with a reference strap or electrode. This is necessary to fix the common mode body potential of the patient to the midpoint of the sessantaquattro power supply. -
Page 28: Troubleshooting
- June 2017 TROUBLESHOOTING This section describes the most common problems that may be found by sessantaquattro users, with some suggestions to solve them. For problems not described in this section contact the technical support service of OT Bioelettronica. -
Page 29: Sessantaquattro Maintenance And Storage
Atmospheric pressure: from 700 hPa to 1060 hPa It is recommended to turn off the sessantaquattro at the end of each measurement session, and to remove all the cables and connections. The sessantaquattro should be stored with all the Warnings. -
Page 30: Technical Characteristics
- June 2017 11 TECHNICAL CHARACTERISTICS Model: sessantaquattro Risk class: IIa in compliance with the standard 93/42/CEE. Insulation class: BF type applied part, in compliance with the European standard EN 60601-1. Classification: - class II, about the protection from indirect contact. -
Page 31: Warranty
- June 2017 WARRANTY Sessantaquattro is covered by a 24 months warranty starting from the purchasing date of the electronic parts. Connection cables are covered by a 24 months warranty. The warranty is void in case of device violation or in case of intervention from unauthorized staff. - Page 32 - June 2017 Designed, produced and distributed by: OT Bioelettronica s.r.l. C.so Unione Sovietica 312 10135 – Torino (TO) - ITALY Tel: +39.011.6198498 Fax: +39.011.6198498 URL: www.otbioelettronica.it e-mail: mail@otbioelettronica.it pag. 32...
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