Emotiv EPOC Flex User manual

EPOC Flex User Manual

EPOC FLEX User Manual
Image: Pre-configured EPOC Flex Gel
This document is intended to help you get started using the EPOC Flex. The EPOC Flex is a
32-channel, flexible EEG system. It was built on the award winning EPOC+ technology and
is designed for researchers who would like to have a more flexible sensor placement and /
or greater density of sensors. The reference sensors can be placed in any location on the
head, or on the ears with included earclips. EmotivPRO v1.4+ is required for operation.
If you have any queries beyond the scope of this document, please contact us through our
online support

EPOC Flex

Introduction
EPOC Flex Saline Kit Contents
This document is intended to help you get started using the EPOC Flex. The EPOC Flex is a
32-channel, flexible EEG system. It was built on the award winning EPOC+ technology and
is designed for researchers who would like to have a more flexible sensor placement and /
or greater density of sensors. The reference sensors can be placed in any location on the
cap, and on the ears with included earclips (gel sensors only ). EmotivPRO v1.4+ is required
for operation.
If you have any queries beyond the scope of this document, please contact us through our
online support

EMOTIV products are intended to be used for research applications and personal use only.
Our products are not sold as Medical Devices as defined in EU directive 93/42/EEC. Our
products are not designed or intended to be used for diagnosis or treatment of disease.

Technical Specifications
Device EPOC Flex
No. of
Channels 32 (plus CMS/DRL references)
Channel
names Configurable on standard 72 channel international 10-20 locations.
Sampling
method Sequential sampling. Single ADC
Sampling
rate 128 SPS (1024 Hz internal)
EEG
Resolution
14 bits 1 LSB = 0.51μV (16 bit ADC, 2 bits instrumental noise floor
discarded)
Max Slew
Rate 32.64uV/sample (Compression required for BLE data transmission)
Bandwidth 0.2 - 45Hz, high attenuation at 50Hz and 60Hz
Filtering Built in digital 5th order Sinc filter
Dynamic
range (input
referred)
+/- 4.12 mV
Coupling
mode AC coupled
Connectivity Proprietary 2.4GHz wireless, BLE(coming soon)
Battery
Capacity. LiPo battery 680mAh
Battery life
(typical) 9 hours

Impedance
Measurement Real-time contact quality using patented system
IMU Part
ICM-20948 3-axis Accelerometer, 3-axis Gyroscope, 3-axis Magnetometer.
Data Output 10 channels Quaternions, (Q0, Q1, Q2,Q3), Acceleration
(X,Y,Z) and Magnetometer (X,Y,Z)
Motion
Sampling 16 Hz
Motion
Resolution 8-bit Output
Sensor
Material
Sintered Ag/AgCl (EPOC Flex Gel model) can be used with any EEG gel
Electroplated Ag/AgCl (EPOC Flex Saline models) with replaceable
polyester felt pads can be sterilised and re-used (bulk pack available for
separate purchase)

Safety Precautions
It is important to read the following safety precautions:
EPOC Flex is a consumer product, it is not intended to use be used for in-patient health
care or in hazardous environments.
EPOC Flex is designed to be used at room temperature; rapid changes in temperature
will affect the performance of the amplifiers and increase the noise floor.
EPOC Flex can be used with gel or saline based sensors.
Warnings
EPOC Flex is powered by a Lithium-Polymer battery that is rated for operation in <45C
environments. It is not user replaceable; please contact support if you suspect a fault or
if you have any questions.
Do not open the enclosure. Doing so will void the warranty and it can damage the
headset.
Do not charge EPOC Flex while wearing the device. In the unlikely event your PC has a
faulty power supply, you and your headset could unintentionally become the ground
path. If EPOC Flex detects a USB connection when turned on, it will stop
communicating.

Regulatory Compliance
EMOTIV products are intended to be used for research applications and personal use
only. Our products are not sold as Medical Devices as defined in EU directive 93/42/EEC.
Our products are not designed or intended to be used for diagnosis or treatment of
disease.
FCC ID Number 2ADIH-FLEX01 and IC ID Number: 12769A-FLEX01.
EMOTIV has undertaken testing and confirms:
This device complies with the radio equipment directive (2014/53/EU).
This device complies with part 15 of the FCC Rules. Operation is subject to the following
two conditions: (1) This device may not cause harmful interference, and (2) this device
must accept any interference received, including interference that may cause undesired
operation.
This equipment has been tested and found to comply with the limits for a Class B digital
device, pursuant to part 15 of the FCC Rules. These limits are designed to provide
reasonable protection against harmful interference in a residential installation. This
equipment generates, uses and can radiate radio frequency energy and, if not installed and
used in accordance with the instructions, may cause harmful interference to radio
communications. However, there is no guarantee that interference will not occur in a
particular installation. If this equipment does cause harmful interference to radio or
television reception, which can be determined by turning the equipment off and on, the user
is encouraged to try to correct the interference by one or more of the following measures:
- Reorient or relocate the receiving antenna.
- Increase the separation between the equipment and receiver.
- Connect the equipment into an outlet on a circuit different from that to which the receiver
is connected.
- Consult the dealer or experienced person for help.
This Class B digital apparatus complies with Canadian ICES-003.
Cet appareil numérique de la classe B est conforme à la norme NMB-003 du Canada.

This device contains licence-exempt transmitter(s)/receiver(s) that comply with Innovation,
Science and Economic Development Canada’s licence-exempt RSS(s). Operation is subject
to the following two conditions:
1. This device may not cause interference.
2. This device must accept any interference, including interference that may cause
undesired operation of the device.
L’émetteur/récepteur exempt de licence contenu dans le présent appareil est conforme aux
CNR d’Innovation, Sciences et Développement économique Canada applicables aux
appareils radio exempts de licence. L’exploitation est autorisée aux deux conditions
suivantes :
1. L’appareil ne doit pas produire de brouillage;
2. L’appareil doit accepter tout brouillage radioélectrique subi, même si le brouillage est
susceptible d’en compromettre le fonctionnement.
Please Note: Changes or modifications not expressly approved by the party responsible
for compliance could void the user's authority to operate the equipment.
Section Standards Tested
EMC and Telecom: Class B ETSI EN 301 489-1 & 489-17
ETSI EN 301 328 v2.1.1
AS/NZS CISPR22 :2009
AS/NZS 4268 :2012, BTLE 4.0
USA FCC CFR 47 Part 15B & 15C
Canada ISED RSS-247: Issue 2, IC RSS-102: Issue 5
Our USB dongle has FCC ID Number XUE-USBD01.

Package Contents
EPOC Flex is designed to allow users to buy the components required to meet their research
need. When you open the box, you will find the following:
Controller Universal USB Receiver (included with
Controller)
EasyCap(tm) Emotiv Custom Cap Electrode Sensors - EPOC Flex Gel model

Micro-B to A USB charge cable Earclips (included with Gel sensors only)

Assembly Quick Start
After unboxing your EPOC Flex for the first time because charge the controller unit for at
least an hour and before fitting the controller to the cap please turn it on by moving the
power switch to the right, a blue LED will show that it is on.
Please find the quick start guide for setting up your EPOC Flex cap in the setup section
below.
After the cap is setup it can then be fitted onto the test subject.
Please plug in the provided universal USB receiver into your computer, You should also see
the lights on the receiver change to indicate it is receiving data from the controller.
Look at the contact quality map, you want to ensure all sensors are green this might require
you to re-hydrate saline sensors or add additional gel until you have 100% CQ.

You are now all ready to start recording!

Controller

Controller Assembly
EPOC Flex Controller
The EPOC Flex controller pictured above has 16 channels on the left + CMS input and 16
channels on the right + DRL output. These channels are connected in two rows A-H and J-Q
with the position above the CMS/DRL empty on both sides as shown below.

Charging and LED Indicators
The EPOC Flex has a single RGB LED to indicate power on and charging as shown in the
table below.
Action LED Colour
Power OFF / Battery Flat OFF
Powered On BLUE
USB connected / Charging ORANGE
Charge complete GREEN
Firmware failure Fade On - Fade Off Blue
USB connected / powered On WHITE
It is recommended that your headset is fully charged prior to taking recordings. The charge
time depends on the remaining capacity in the Lithium Polymer cell and can take up to four
hours. If the EPOC Flex LED does not turn blue on power on it requires charging. Please use
the provided USB Micro-B cable to recharge using any usb port.
Note 1: The headset will charge faster if connected to a dedicated USB port.
Note 2: If the headset it heavily depleted or hasn’t been used for a few months, leave it
connected for 24hrs.

Electrodes

Example Sensor Placement
Below is an example electrode placement for 32 channels with central references or DRL
and CMS can be moved to P9/P10 to be the same as EPOC+. The default configuration of
EPOC Flex in EmotivPRO is as below. This placement gives good coverage of the entire
head, with the pod fitted in the back pocket.