Versatile EEG 32 - Bitbrain · 2019-04-04 · 2 English Versatile EEG 32 English This is the user guide for the Versatile EEG 32 device from Bitbrain. This guide contains all essential

User guide

Versatile EEG 32

E32.A1

2 Versatile EEG 32English

English

This is the user guide for the Versatile EEG 32 device from Bitbrain.

This guide contains all essential information for you to make full use of your product.

3Reference guide English

Contents

04 What’s included?

06 Safety information

08 Conditions of use

09 Disclaimer

10 Versatile EEG 32

11 Technical specifications

12 Assembling the cap – Preparation – Placement

19 Power-up – Signal acquisition

25 Removing the cap - Maintenance


Item Name / description Amount

32-channel amplifier • Operates with internal battery.

1

32-channel EEG cap + chinstrap • Holds the electrodes in place. • Based on the 10/10 international system.

2

2 Sets of EEG electrodes + connectors • With a total of 32 channel divided into:

1 Set of 16 channels + GND + REF.1 Set of 16 channels.

1

Sensor holder • Organizes the sensors and cables when

not in use, preventing damaged.

1

Sensor sockets • Enable placement of the sensors in the

specific positions around the cap.

2 x 33

Wet sensors (sponges) • When damp, enable contact between the

sensor and the scalp.

2 x 200 units 2 x 15 ear units

What’s included?This pack includes all the elements necessary for the operation of the wet electrode 32-channel EEG equipment. These are:


What’s included?

Item Name / description Amount

Cable fastening band • Groups and organizes the cables during

operation.

1

Measuring band • Measures the perimeter of the user’s

head.

1

Charger • Charges the battery of the amplifier.

1

Adjustable elastic band (optional) • To be used with the long cable sensors. The amplifier can

be placed on the arm or waist.

Photodiode (optional) • When connected to the photodiode input (Phot.) enables the

measurement of changes in light intensity to synchronize data recording with stimuli displayed on a screen.

Buttons / Switch (optional) • When connected to the digital input (DIG), registers

events by the user.

ExG bipolar sensors (optional) • When connected to one of the Bip.ExG inputs,

measures biopotentials (ECG, EMG, ...).


Careful use and handling • Do not handle the device with

damp hands, as this could cause a short-circuit.

• Do not use the device for other applications than its intended purpose.

• Do not hit, throw, bite, open or burn the device.

• Keep the device in a dry place, between the temperatures of 5ºC and 40ºC. Prolonged exposure to high temperatures can affect the stability of the battery.

• Using a different charger than the one provided with the pack can damage the device.

• Disconnect the charger once the device battery is completely charged to avoid a decrease in battery life cycle.

Precautions • DO NOT use the device while it is

charging. • DO NOT open the device. Contact

the support team at Bitbrain if your device does not work.

• DO NOT place this device close to life support electronic and electrical equipment.

• If you notice that the device emits strange smells or noises or its temperature is excessive, leave it in a secluded place and call the support team at Bitbrain.

Safety informationPlease, read carefully the safety information, the conditions of use and the instructions before using the device. Failure to comply with the recommendations of use will entail the guarantee cancellation.


Safety information

Disposal of the deviceDo not throw electric or electronic devices in the trash! According to the European Directive 2012/19/UE on waste electrical and electronic equipment, computer and telecommunication equipment must be disposed of separately for ecological recycling.

Conformance and CE markingThis device complies with the EU safety requirements (UNE-EN 60950-1: 2007, EN55032 and EN55024). The CE mark indicates compliance with the corresponding directives of the EU Council, which includes EMC Directive 2004/108/EC.

ImportantVersatile EEG 32 is a device designed by Bitbrain to measure biometric data for research purposes.


Conditions of use

• Read the “safety information” section carefully and keep the user guide for future reference.

• Read carefully the “Terms & Conditions of Sale for Bitbrain Products”, this document can be found in this Link.

https://www.bitbrain.com/downloads/terms_and_conditions_bitbrain_en_0319.pdf


Disclaimer

The Hardware devices included in the Products (EEG, biosensors, indoor GPS, eye-tracking, etc) are not medical devices, they have not been designed or manufactured to provide health services, neither are they intended for medical diagnosis, cure, mitigation, treatment, advice or prevention of disease, but for research purposes.

Read our “Terms & Conditions of Sale for Bitbrain Products” before buying, for a complete understanding, in this link Link.

https://www.bitbrain.com/downloads/terms_and_conditions_bitbrain_en_0319.pdf


DIG

Sensor models

Power buttonPhotodiode input

Digital input

ExG bipolar connector input

Charge portMicroSD slot

LED MicroSD

EEG 1 input (16-channel sensor set + GND + REF)

Sensors with long cables for placement of the amplifier on a flat surface or arm / waist.

Sensors with short cables for placement of the amplifier on the cap.

EEG 2 input (16-channel sensor set, marked in blue)

Power LEDBluetooth connection LED

Battery indicator LED

Versatile EEG 32A wireless and easy to set up 32-sensor device that measures brain responses with high accuracy.


Technical specifications

Nominal voltage 3.7V

Nominal power 1000mW

Autonomy >8 h (online mode) y ≥10 h (MicroSD mode)

Charging time ≤3h

Sampling frequency 256Hz

Wireless technology Bluetooth 2.1 + EDR

Data backup Yes (Removable MicroSD memory card)

Dimensions Amplifier: 107x74x32mm

Weight 164g

Charging connection Barrel plug connector (Charger provided)

Certifications EN 60950, EN 55032, EN 55024


PreparationFollow the steps described below to select a cap, correctly insert the sensor sockets, and achieve the desired disposition of sensors.

2To place a socket in the cap, identify the corresponding location hole and slightly enlarge it with your finger. Insert the socket from the inside of the cap towards the outside, introducing it through the hole until the fabric is correctly placed in the slit, as shown in the picture.

1Measure the perimeter of the user’s head and select the adequate cap size. If none of the sizes fit, please contact Bitbrain to acquire the correct size.


PzP3 P4

C4C3

Cz

O1 O2

Pz

3To remove a socket, place your thumb on top of it and push towards the inside with both hands until it slides out of the fabric.*

To place a socket in a different position, follow the instructions for step 1.

*Please note that the cap material will suffer a slight deformation when the sockets are introduced, and therefore frequent changing of positions could stretch the cap..

4Before placing the cap on the head, insert the sensors. Press firmly on the silicone to insert each sensor. When placing the sensors on the cap, ensure that the cables are organized towards the back for easy placement on the head.

ATTENTION: Please take note of the positions of the sensors (marked on the cap) and the number of each sensor. Data analysis requires this association.

Preparation


5Prepare the necessary sponges for the 33 sensors (32 channels + GND) plus the sponge for the clip, which is the reference of the system*. Submerge the sponge in water until it is completely wet.

6Roll the sponge into a cylinder, as shown in the picture.

Preparation

*If you need more sponges, contact the Bitbrain team to acquire the necessary amount.


7From the inside, introduce the humid sponges in the inner orifices of the corresponding sensors of the cap.

Repeat steps 5 to 7 with the remaining sensors.

Preparation


8Measure the distance between the nasion and the inion (see image). You will need this measurement to position sensor Cz correctly, which should be situated exactly halfway the nasion/inion distance.

9Start placing the cap from the forehead and adjust the rest of the cap until it adapts completely to the head. Ensure that sensor Cz is correctly located by confirming its position with the measuring band.

Cz

Nasión Inion

1

2Cz

PlacementFollow the steps described below to continue with the placement of the cap.


10 Ensure that the cap is centered on the head. The lateral sensors should be symmetrical to the central sensor line.

11 Attach the chinstrap. Ensure the cap is adjusted but not too tight.

Placement


12Organize the cables as shown in the picture (towards the back of the head). Ensure the cables are fixed to the head to guarantee good signal.

Utilize the fastening band to keep cables in the correct position and prevent them from shifting during operation of the device.

Placement


Power-up

13Connect the sets of sensors to the amplifier, making sure the set marked in blue is connected to the “EEG 2” input.

¡Click click!

To ensure good connection, introduce the connectors until a “double click” is heard.


Power-up

14For the placement of the amplifier:

A. If you are using the model with short cable sensors, fasten the amplifier to the velcro area located at the back of the cap.

B. If you are using the model with long cable sensors, place the amplifier on a fixed surface or fastening it to the velcro on the band. The band can be placed on the arm or waist.

A

B


Power-up

PairingBe sure the computer has a Bluetooth adapter. It is necessary to carry out a pairing procedure with the computer before using it for the first time. This procedure can be accomplished from the Windows Control Panel.

The name of the device corresponds to its serial number, indicated on the product label.

15Power the amplifier by pressing the power button ( ) until the light blinks. The wireless connection LED will flash until the connection is established with the software. The LED will then be steady on. When the battery device is low, the battery indicator LED will turn on.

IMPORTANT: Do not use the device while charging. It is not recommended to start a recording with low battery. This can affect the quality of the recorded signal.


16For the placement of the clip:

1. Start by taking a sponge and wetting it in water. Ensure that the sponge is just damp (not wet/dripping) by gently squeezing it.

2. Insert the damp sponge in the inner part of the clip, on the metallic sensor. Place the sponge within the orientation ledges that surround the sensor to ensure its correct placement, as shown in the picture.

3. Place the clip on the earlobe, ensuring that the sponge is facing the back of the ear.

1

2

3

Power-up


Signal acquisition

17Once all sensors are damp and placed, verify each signal with the software.

The color of the sensors will indicate the quality of contact. The final quality achieved depends on the correct placement.


In case of sensor failure

Gently push the sensor against the head, in a small circular motion, to improve contact with the scalp.

If good signal is still not achieved, verify the humidity of the inner sponge. If the sponge is dry or not sufficiently damp, repeat the dampening process.

Push the sensor gently against the head until the signal is acquired.

Signal acquisition

Wait for a few seconds until the signal stabilizes.

If the sensor still does not work, repeat this step once or twice.

10s


Removing the cap

1. Power off the amplifier and disconnect it.

2. Remove the clip and the chinstrap.

3. Finally remove the cap, starting from the forehead.

1

2.A.

2.A.


1. Remove, one by one, each of the electrodes before cleaning the cap. Gently pull the electrode while rotating it. Please do not attempt to remove the electrode by pulling from the cables (damage risk).

2. Remove the sponges. For

hygiene reasons, we recommend tossing the sponges after each use.

3. Store the sensors in the square holder to ensure correct maintenance.

PzP3 P4

C4C3

Cz

O1 O2

Pz

4

5

6

Removing the cap


Maintenance

Attention! • Do not use hot sterilization

methods (steam), at the risk of damaging cable insulation.

• When not in use, caps and electrodes should the kept in a dry place.

Conservation • Keep the product in its original

packaging while not in use.

• If you are storing the device for long period of time (several months or weeks), it is recommended that the battery is not 100% charged. This can degrade the battery and result in capacity loss, which causes a decrease in the autonomy of the device.

Cleaning the cap • Clean the cap after each use

without removing the blue sensor sockets. Use warm water with a few drops of soft detergent (we recommend Ivory). Rinse with water and leave it to dry on a flat surface. Do not use aggressive cleaners or shampoo.

• To disinfect the cap, we recommend the use of a specific disinfecting solution, Korsolex plus. Dilute 30 ml solution per liter of cold water, and submerge the cap (without the sensors) for 15 minutes.

Very important • Do not use strong or abrasive

disinfectants to clean the product.

• Read carefully the instructions on the use of a disinfectant solution. When selecting a cleaning product, confirm its effectiveness and compatibility with the material.

V-E32-0319

More information atwww.bitbrain.com

+34 976 743 [email protected]

Paseo de Sagasta 19. Entlo., Dcha.50008 Zaragoza, España

http://www.bitbrain.com

mailto:info%40bitbrain.com?subject=User%20Guide

Documents

Versatile EEG 32 - Bitbrain · 2019-04-04 · 2 English Versatile EEG 32 English This is the user guide for the Versatile EEG 32 device from Bitbrain. This guide contains all essential