CGX Quick-20r - User Manual

Quick-20r V2
This manual contains general operating instructions, precautionary measures,
maintenance instructions, and information for use of the CGX Quick-20r.
Please read this manual carefully and familiarize yourself with the controls and
accessories before using the product.
Note
• This is an investigational device designed for research and development eorts.
• It is not an FDA-approved medical device.
• There are no known side eects from the use of this product.
CGX A Cognionics Company
Description
The Quick-20r is a wireless, battery-
operated EEG headset utilizing dry
sensor technology. Channel positions
are arranged in a 10-20 montage plus
2 variable-placement ExG channels.
The headset provides an integrated
approach to the wireless acquisition
of recorded of EEG signals. Wireless
technology allows the subject to move
about while real-time data is collected
and displayed.
The headset obtains high-quality
EEG with minimal scalp preparation.
Patented mechanisms and replaceable
dry sensors align to various head
shapes and sizes, maintaining sensor
positions in a standard montage.
EEG channels are sampled at a time
resolution of 500Hz and converted to
digital data at 24 bits of resolution.
The Quick-20r provides research-
grade signal quality and is ideally
suited for general-purpose EEG and
ERP research in laboratory and field
environments.

Summary

Device Overview

Quick-20 r Overview

Detailed explanation of the wireless EEG headset and its dry sensor technology.

Preparation

Install Acquisition Software

Guide to downloading and installing the CGX Acquisition software for Windows.

Select and Attach Sensors

Instructions on choosing the appropriate sensors and attaching them to the headset.

Assemble Headset Components

Steps for assembling earclips and connecting lead wires to the headset.

Power and Dongle Setup

Guide to charging batteries, checking status lights, and inserting the Bluetooth dongle.

Start Acquisition Software

Steps to launch the software and establish a connection with the headset.

Donning Instructions

Optimal Headset Placement

Visual guide and tips for correctly positioning the headset on the subject's head.

Wear the Quick-20 r Headset

Step-by-step instructions for wearing the headset, including sensor contact and earclip attachment.

Final Steps & Data Management

Optimize Sensor Contact

Ensuring good signal quality by optimizing sensor-scalp contact using LEDs and impedance checks.

Record and End Session

Instructions for starting, stopping EEG recordings and properly ending the session.

Cleaning and Disposal

Procedures for cleaning sensors, pods, legs, battery storage, and product disposal.

Understanding Readings

Clean Data and Basic Artifacts

Examples of clean EEG data and artifacts from blinks and eye movements.

Muscle Artifacts

Identification of artifacts caused by jaw clenching, tongue movement, and swallowing.

Other Artifacts and Noise

Explanation of artifacts from neck tension, sensor pops, head movement, pulse, and power lines.

Setup and Connection Errors

Troubleshooting common errors related to reference and ground contact in the setup.

Software Reference

Device Configuration and Connection

Configuring and connecting the acquisition device within the CGX software.

Display and Scaling Settings

Adjusting scaling, filtering, and channel display parameters in the software.

Channel Impedance and Quality

Viewing channel information, impedance, and sensor contact quality.

Markers and Transmission Status

Using markers for event annotation and monitoring transmission status and battery level.

Specifications

Quick-20 r Headmap

Warranty and Service

Overview

1. Function Description
2. Important Technical Specifications
3. Usage Features
4. Maintenance Features

The CGX Quick-20r is a wireless, battery-operated EEG headset designed for research and development efforts. It is not an FDA-approved medical device. The device is intended to acquire electroencephalogram (EEG) signals and transmit them wirelessly to a computer.

Function Description:

The Quick-20r utilizes dry sensor technology for EEG acquisition. Its channel positions are arranged in a 10-20 montage, supplemented by two variable-placement ExG channels. The headset provides an integrated approach to wireless acquisition of EEG signals, allowing subjects to move freely while real-time data is collected and displayed. It is designed to obtain high-quality EEG with minimal scalp preparation. Patented mechanisms and replaceable dry sensors align to various head shapes and sizes, maintaining sensor positions in a standard montage. The EEG channels are sampled at a time resolution of 500Hz and converted to digital data at 24 bits of resolution. The Quick-20r delivers research-grade signal quality, making it suitable for general-purpose EEG and ERP research in both laboratory and field environments.

Important Technical Specifications:

• A/D Resolution: 24-bit simultaneous sampling analog-to-digital converters.
• Sampling Rate: 500 samples per second.
• Bandwidth: 0-131 Hz with true DC coupling.
• Accelerometer: 3-axis measures head motion.
• Range: 10 meters (wireless transmission).
• Noise: <1.0 µV RMS from 1-50 Hz, shorted inputs.
• Drypad Ear Sensor (Part No: SEN-DE-40): 200 uses.
• Drypad Sensor (Part No: SEN-DP-40): 200 uses.
• Flex Sensor (Part No: SEN-FX-40): 200 uses.
• Wireless Type: Bluetooth Low Energy.
• API: Full access to raw data via real-time streaming API.
• Impedance Check: On-board and on-screen continuous impedance check with real-time monitoring of all channels simultaneous with EEG.
• Export To: EDF, BDF, CSV.
• Compatible With: Brainvision Recorder, NeuroPype, LabStreaming Layer, EEGLAB, BCILAB, MATLAB, BCI2000, OpenViBE, NeuroGuide, and more.
• Battery Type: Two AA Batteries.
• Battery Life: 8 hours.
• Applied Part: Type BF.
• Weight: 526g.
• Fits Heads: Sized 52-62 cm.
• Dimensions: 20 x 18 x 19 cm.

Usage Features:

• Headset Design: The Quick-20r fits most adult head sizes (52-62 cm circumference). It uses dry sensors, eliminating the need for conductive gels, which allows for faster setup and no after-use cleanup.
• Sensor Types: Drypad sensors are used for direct skin contact in hairless areas (forehead, bald areas), while Flex sensors are designed to penetrate hair for high-quality scalp contact. Dedicated Drypad sensors are used with earclips.
• Earclips: The A1 earclip (left ear) has two sensor locations (Reference and Ground). The A2 earclip (right ear) is used in linked-ears configurations. Active and passive lead wires connect these to the headset.
• ExG Channels: Two variable-placement ExG channels allow for additional biometric data acquisition.
• Battery Operation: Uses two AA Alkaline or NiMH batteries. Battery status is indicated by LEDs on the amplifier (Green for On, Yellow for Low Battery, Red for Critically Low Battery).
• Bluetooth Dongle: A high-speed receiver dongle plugs into a computer's USB port. Each Quick-20r is permanently paired to a specific dongle, automatically connecting within a 10m range when powered on. The dongle's indicator light shows its status (Green for Power On/Not Paired, Purple for Searching, Blue for Device Found, Flashing Blue for Data Transmitting).
• Software Integration: The CGX Acquisition software (Windows only) allows for device connection, data streaming, and impedance checks.
• Optimal Sensor Contact: The headset features impedance-level LEDs on each sensor pod, with a threshold of 2,500 KΩ, to assist in making proper scalp contact. The software provides a color-coded impedance map.
• Data Recording: The software allows users to record data (CSV files with time stamps), stop recordings, and integrate with LabStreamingLayer and BCI2000 via an RDA Server. A timer feature can limit recording length.
• Display Options: The display tab in the software controls scaling (time window, EEG/accelerometer gain), channel display, filtering (high pass/low pass for display only; raw data is saved unfiltered), and masking of high-impedance channels.
• Triggering: The Markers tab displays received triggers chronologically and allows for manual trigger insertion for general annotation. It also supports TCP triggers for external event marking.
• Status Monitoring: The Status tab provides information on data rate, compression ratio, lost packets, and battery level.
• Donning Instructions: Detailed steps are provided for placing the headset, adjusting earclips, positioning sensors (e.g., Fp1 and Fp2 1cm above eyebrows), and ensuring firm contact, especially at Cz. Subjects should be in an upright position during EEG recordings.

Maintenance Features:

• Cleaning: Sensors should be cleaned with hand sanitizer or alcohol wipes after each session. Sensor pods and legs should also be cleaned with alcohol wipes. The device is not intended for sterilization in an autoclave.
• Sensor Replacement: Sensors should be replaced at or before their stated lifecycle limits (200 uses for Drypad and Flex sensors) or if they appear worn.
• Battery Management: Batteries should be removed when the headset is not in use.
• Storage: The headset should be placed upside down on a tabletop or in its supplied carrying case. For long-term storage, it is recommended to place it on a mannequin head for several hours to prevent compression of the legs, which could make it excessively tight on larger heads.
• Disposal: Users should follow local laws and policies for electronic and battery disposal. The headset can also be returned to CGX for proper disposal.
• Warranty: The Quick-20r headset comes with a 3-year warranty on manufacturing defects and a 90-day warranty on accessories and disposable parts. The warranty is void if the device is opened or tampered with.
• Returns: All returns for repair or assessment require an RA number issued by CGX. CGX covers outbound shipping costs for returns.

CGX Quick-20r Specifications

General

Brand	CGX
Model	Quick-20r
Category	Headsets
Language	English