OBELAB NIRSIT LITE User manual

Before Using Our Product
i
Before Using Our Product
Thank you for purchasing NIRSIT-Lite. NIRSIT-Lite is functional Near-Infrared spectroscopy
device made by OBELAB Inc. It is a device designed to measure variations in cerebral blood
oxygen saturation by radiating a near-infrared light beam, at two wavelengths of 780 nm and
850 nm, into the cerebral cortex. The device radiates a LED light with a output of 1 mW or
less which is harmless to the human body. The device comes with PC software you can use to
monitor the distribution of cerebral oxygen saturation via multiple channels. This product
comes in two versions: NIRSIT Lite for adults and NIRSIT Lite for children.
This user manual contains important information regarding the use of the device. Please read
this manual carefully before using the device. Keep this manual within easy reach for future
reference.
Please contact us if you have questions about this manual or the product purchased.
▪Manufacturer: OBELAB Inc.
▪Address: 12F, Vision Tower, 312, Teheran-Ro, Gangnam-gu, Seoul, Korea
▪Tel: [phone]
▪Fax: [phone]
▪Email: [email protected]
▪Website: http://www.obelab.com
▪Version: v1.0

Warranty and Liability
ii
Warranty and Liability
Warranty
OBELAB Inc. warrants the quality of this product as specified below
Warranty Service
Free repair service is provided within warranty period (1 year from the date of purchase) to
the damaged device due to component failure during proper operation.
Charged Service
Service is charged when the following cases apply:
1 Out of warranty period
2 Within warranty period
a. Repairs resulting from natural disasters (lightning, fire, earthquake, storm, flood, etc.)
b. Repairs resulting from a device failure or damage caused by user mishandling (impact,
dropping)
c. repairs resulting from old or worn out consumables (battery, cable, etc.) that need
replacement
d. repairs resulting from a device failure due to unauthorized repair or modification
e. repairs resulting from the use of unauthorized components
f. repairs resulting from services performed by an unauthorized person or entity
Notice
For matters that are not specified in this document, the Act on Consumer Protection of Korea
and relevant regulations on compensation for consumers shall apply. For other repairs and
questions, please contact your dealer or the OBELAB Customer Support Center.
Request for service on a functioning device will result in service charges. Please read the User
Manual.
This warranty is only valid in the Republic of Korea, and not to be re-issued. Please store the
warranty in a safe place or send a scanned copy to OBELAB ([e-mail]).
For other repairs and any service-related questions, please contact your dealer or the OBELAB
Customer Support Center.

Copyrights
iii
Copyrights
This manual is the property of OBELAB Inc. and protected by copyright law. Unauthorized use
or reproduction, in whole or part, is strictly forbidden.
Contents of this user manual are subject to change without notice, regarding changes to the
performance or specifications of the device. For information on the device and user manual,
please contact the OBELAB Customer Support Center.
Copyright ⓒ2019 All Rights Reserved.

History of Revision
iv
History of Revision
Version
Revised date
Details
Remarks
1.0
2020/01/03
Initial edition
3.5
2021/04/19
Add an additioanl BLE Dongle setting
and marker type setting

Table of Contents
v
Table of Contents
Before Using Our Product............................................................................................ i
Warranty and Liability................................................................................................ ii
Copyrights ..................................................................................................................iii
History of Revision .....................................................................................................iv
Table of Contents ........................................................................................................v
1. Overview ......................................................................................................... 1
1.1 Safety Instructions ........................................................................................................ 1
1.1.1 User Qualification .............................................................................................. 1
1.1.2 Electrical Safety Instructions .............................................................................. 1
1.1.3 General Safety Instructions ................................................................................ 2
1.1.4 When cleaning the device .................................................................................. 2
1.2 Symbols Used ............................................................................................................... 3
1.3 Guideline for equipment disposal.................................................................................... 4
1.4 Notation ....................................................................................................................... 5
2. Using NIRSIT-Lite............................................................................................ 6
2.1 Names and Locations of Components ............................................................................. 6
2.2 Basic Components ......................................................................................................... 7
2.3 Battery ......................................................................................................................... 7
2.3.1 Charging the Battery ......................................................................................... 8
2.3.2 Checking Battery Level ...................................................................................... 9
2.4 Sensor Module Position.................................................................................................10
3. Before Using NIRSIT-Lite Software............................................................... 11
3.1 Preparing to wear.........................................................................................................11
3.1.1 Installing the Strap ...........................................................................................11
3.1.2 Checking Operation Status ................................................................................12
3.2 Turning on the device ...................................................................................................12

Table of Contents
vi
3.3 Putting on the device ...................................................................................................13
3.4 Installing the Software .................................................................................................14
3.5 Running the Software...................................................................................................14
3.6 Connecting to the device ..............................................................................................15
4. Using NIRSIT-Lite Software .......................................................................... 17
4.1 PC Software Structure ..................................................................................................17
4.2 Setting Serial Port ........................................................................................................18
4.2.1 Connecting to Serial Port ..................................................................................18
4.3 Gain Calibration ...........................................................................................................20
4.4 MONITORING ..............................................................................................................21
4.4.1 MONITORING Mode Screen Overview................................................................22
4.5 REPLAY .......................................................................................................................24
4.5.1 REPLAY Screen Overview ..................................................................................24
5. Maintenance .................................................................................................. 25
5.1 Replacing Accessories and Components .........................................................................25
5.1.1 Replacing Straps ..............................................................................................25
5.2 Cleaning ......................................................................................................................25
5.2.1 Cleaning Silicone padded sensors ......................................................................25
5.2.2 Cleaning NIRSIT-Lite ........................................................................................25
6. Troubleshooting............................................................................................. 26
7. 7. Product Specifications ............................................................................... 27
7.1 Mechanical Characteristics ............................................................................................27
7.2 Technical Characteristics ...............................................................................................27
7.3 Electrical Characteristics ...............................................................................................28
7.4 PC Requirements..........................................................................................................28
7.5 Environmental Requirements ........................................................................................28
8. Appendix........................................................................................................ 29
8.1 Guidance and Manufacturer’s Declaration ......................................................................29
8.1.1 Guidance and Manufacturer’s Declaration – Electromagnetic Emissions................29
8.1.2 Guidance and Manufacturer’s Declaration – Electronmagnetic Immunity ..............30

Table of Contents
vii
8.1.3 Guidance and Manufacturer’s Declaration – Electronmagnetic Immunity –
Equipment & Systems that are NOT life supporting..........................................31
8.1.4 Recommended separation distances between portable and mobile RF
communications equipment and the system ....................................................32