User guide

Diadem

E12.A1

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English

This is the user guide for the Diadem device from Bitbrain.

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

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Contents

04 What’s included?

05 Safety information

07 Conditions of use

08 Disclaimer

09 Diadem

11 Technical specifications

12 Power-up – Placement – Signal acquisition

19 Removing the Diadem device

20 Maintenance

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Item Name / description Amount

Amplifier with 12 channels • Operates with internal battery.

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EEG headband with 12 channels • Based on 10/10 international system. • Includes 12 dry sensors + GND + REF

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Headband stand • Holds the headband securely when not

in use.

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Charger • Charges the battery of the amplifier.

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Elastic adjustable band (optional) • Enables placement of the amplifier 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.

What’s included?The pack includes all the elements necessary for the operation of the EEG equipment with 12 dry sensors. These are:

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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.

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.

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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.

ImportantDiadem is a device designed by Bitbrain to measure biometric data for research purposes.

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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.

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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.

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Power LEDBluetooth connection LED

Battery indicator LED

A. Ear clip

C. Adjustment buttons E. Front central marking

G. EEG connector

B. Mobile sensors

D. Adjustment zones F. Flat frontal sensors

Power buttonAuxiliary entrance

Diadem Connection

Charge portMicroSD slotLED MicroSD

DiademEEG device with 12 dry sensors and easy placement, which enables high reliability in the measurement of brain responses for the estimation of emotional and cognitive states.

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P3 P4

Fp1

AF7

Fp2GND

AF8

F3 F4

O1

PO7

O2

PO8

REF

Diadem

SensorsThe headband counts with 12 sensors, plus ground (GND) and reference (REF).

The sensors are placed at positions AF7, Fp1, Fp2, AF8, F3, F4, P3, P4, PO7, O1, O2 and PO8,according to the EEG 10/10 international standard.

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Technical specifications

Nominal voltage 3.7V

Nominal power 750mW

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)

DimensionsHeadband: 195x175x90mmAmplifier: 71x71x34mm

WeightHeadband: 190g.Amplifier: 125g.

Charging connection Barrel plug connector (Charger provided)

Certifications EN 60950, EN 55032, EN 55024

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Power-up

1Power 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.

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.

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¡Click click!

Power-up

2Connect the EEG connector to the amplifier. To ensure good connection, you must hear a double “click”.

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PlacementFollow the steps described below for correct placement of the headband.

3 • Open completely the side

adjustment strips by pressing the (C) buttons that unblock the opening while extending the frame carefully.

• Also open the top strip adjustment zones (D).

4 • Position hair away from forehead

to ensure that the flat sensors touch the skin.

• Place the headband over the head perimeter. Firstly, position the frontal section, making sure the central mark (E) is aligned with the nose, and then slide the back part of the headband downwards, until it is situated at the most prominent zone of the perimeter.

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5Ensure that the frontal strip is horizontal and its central mark (E) is aligned with the nose.

6Place the clip on the left ear lobe, with the sensor facing the back.

Placement

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Wait for 10 seconds until the signal is stabilized.

7Carefully move the mobile sensors (B) so that the sensor pads slide through the hair and make contact with the scalp.

Placement

10s

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Signal acquisition

8The software screen shows the EEG signal recorded by the device in real time.

The color of the sensors indicates the quality of the contact with the skin. Quality depends directly on the placement.

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Signal acquisition

In the case good signals are not detected by some sensors:

Repeat until the sensors detect good signals:

A. Carefully move the mobile sensors (B) so that their pads slide through the hair and make contact with the scalp.

Wait for 10 seconds until the signal is stabilized.

B. If you notice that the sensors are not close to the head, slide each adjustment strip carefully to bring the sensors closer to the scalp and verify that the adjustment is uniform on both sides of the head.

Wait for 10 seconds until the signal is stabilized. .

A.

B.

If the issue persists, verify that the head perimeter of the participant fits the device (535-600mm).

10s

10s

B

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Removing the Diadem device

1. Turn the ampifier off.

2. Then remove the clip from the participant’s ear.

3. To remove the headband, press the adjustment buttons (C) while sliding the side strips open. Also open the upper adjustment strips. Remove the headband by lifting the front part first.

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2

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MaintenanceRemember to clean the headband after each use.

Cleaning the headband • Clean the headband frequently,

especially the parts that are in contact with the skin.

• We recommend using a damp cloth (water) to clean the headband.

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-E12-0319

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.

• Between uses, we recommend you place the headband on the provided stand to prevent damage to the cable. Rest the occipital strip on the stand, as shown below.

More information atwww.bitbrain.com

+34 976 743 126info@bitbrain.com

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