OBELAB NIRSIT LITE User Manual
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OBELAB NIRSIT LITE User Manual

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Summary of Contents for OBELAB NIRSIT LITE

  • Page 3: 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.

  • Page 4: Warranty And Liability

    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 (contact@obelab.com). For other repairs and any service-related questions, please contact your dealer or the OBELAB Customer Support Center.

  • Page 5: Copyrights

    Copyrights 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.

  • Page 6: History Of Revision

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

  • Page 7: Table Of Contents

    Table of Contents Table of Contents Before Using Our Product .................... i Warranty and Liability ....................ii Copyrights ........................iii History of Revision ..................... iv Table of Contents ......................v Overview ......................1 Safety Instructions ......................1 1.1.1 User Qualification ....................1 1.1.2 Electrical Safety Instructions ................

  • Page 8: Table Of Contents

    Table of Contents Putting on the device ....................13 Installing the Software ....................14 Running the Software ....................14 Connecting to the device ....................15 Using NIRSIT-Lite Software ................17 PC Software Structure ....................17 Setting Serial Port ......................18 4.2.1 Connecting to Serial Port ..................
  • Page 9 Table of Contents 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 mobile communications equipment and the system ............32...

  • Page 11: Overview

    Overview Overview Safety Instructions Safety instructions are provided to ensure user safety and prevent property damage. Please read the following safety instructions and warnings before using the device. ▪ WARNING Symbol Indicates a potentially hazardous situation which, if not avoided, could WARNING result in death or serious injury.

  • Page 12: General Safety Instructions

    Overview CAUTION Make sure to turn off the device when it is not in use. 1.1.3 General Safety Instructions ▪ Do not use the device in a place where there is a risk of explosion. ▪ Keep the device away from inflammables. ▪...

  • Page 13: Symbols Used

    Overview Symbols Used A list of symbols found in this manual and on the label on the device is shown below. It is important to understand these indications, and to follow the safety instructions. Table 1-1 Symbols Used Symbol Name Description Indicates a potentially hazardous situation which, if not avoided, could result in death or serious injury.

  • Page 14: Guideline For Equipment Disposal

    Plastic parts may be recycled, or burned in a controlled environment, depending on local laws. Please consult OBELAB, its resellers, or other disposal agencies for more NOTE information regarding disposal.

  • Page 15: Notation

    Overview Notation Notation is a series of special symbols or conventions used in this manual to denote different items. This manual uses the following notation for users’ better understanding of the device: Table 1-2 Notation Used in the Manual Notation Decryption Used to denote a reference.

  • Page 16: Using Nirsit-Lite

    Using NIRSIT-Lite Using NIRSIT-Lite Names and Locations of Components Figure 2-1 Components of the System Table 2-1 Components and Their Functions 설명 Strap Power button Silicone padded Sensors 5-pin micro connector Status Indicator (Bluetooth) Status Indicator (Power) Status Indicator (Charging)

  • Page 17: Basic Components

    Using NIRSIT-Lite Basic Components When opening the package, please make sure to check the components and inform the OBELAB Customer Support Center if there are any issues with the package. NIRSIT-Lite Strap USB 2.0 Cable BLE dongle (BLED112) USB Memory stick with...

  • Page 18: Charging The Battery

    Using NIRSIT-Lite 2.3.1 Charging the Battery Charge the battery by connecting the NIRSIT-Lite via a USB cable to a power adaptor. ▪ For the power adapter, must use an IEC60950-1 certified adapter for the charging adapter. NOTE Input: AC 100-240V, 50/60Hz 0.4A, Maximum output: DC 5V, 2.1A...

  • Page 19: Checking Battery Level

    Using NIRSIT-Lite 2.3.2 Checking Battery Level Charging in Progress Red LED On Fully Charged Red LED Off Charging Mode Make sure that the device is off before you charge. Measurement cannot be performed while charging...

  • Page 20: Sensor Module Position

    Using NIRSIT-Lite Sensor Module Position The below picture shows the difference between LED modules and detector modules in terms of external appearance. Optical Safety The device uses LED Light Sources which is harmless to human body.

  • Page 21: Before Using Nirsit-Lite Software

    Before Using NIRSIT-Lite Software Before Using NIRSIT-Lite Software Preparing to wear 3.1.1 Installing the Strap Adjust the strap to fit the subject’s head.

  • Page 22: Checking Operation Status

    Before Using NIRSIT-Lite Software 3.1.2 Checking Operation Status 1 Press and hold the Power button for 3 seconds to turn on the device. Once powered on, the status indicator will illuminate in green, and a beep will be heard. 2 Press and hold the Power button for 3 seconds again to turn off the device. Once powered off, the status indicator will be off as well Turning on the device 1 Turn on the NIRSIT device by pressing and holding the Power button for 3 seconds.

  • Page 23: Putting On The Device

    Before Using NIRSIT-Lite Software Putting on the device 1 For the comfortable fitting, make enough space between subject’s forehead and the device by loosening the strap before putting on the device. 2 As shown below, remove all hair from the forehead region and put the device on. Subject might need to hold a front side of the device with one hand for accurate fitting.

  • Page 24: Installing The Software

    Please install the PC software which is included inside the USB memory stick. Follow the instructions inside. If reinstallation or additional installation is needed, download the software from the OBELAB website after registering the device under www.obelab.com>JOIN US. OBELAB website: www.obelab.com>SUPPORT>DOWNLOAD Running the Software On the WINDOW PC screen, select NIRSIT –Lite PC (...

  • Page 25: Connecting To The Device

    When you turn on the device, the device is connected to NIRSIT-Lite PC software via BLE. Power LED (Green Color) will be on after you turn on the NIRSIT LITE device initially, BLE LED (Blue Color) will be on after connected to PC as shown figure below.
  • Page 26 Before Using NIRSIT-Lite Software...

  • Page 27: Using Nirsit-Lite Software

    Wears the NIRSIT LITE device and performs tasks provided in the NIRSIT-Lite software. ▪ Observer Uses the NIRSIT LITE software to monitor the blood oxygen level of the subject's brain in 3D mode or TIME SERIES mode in real-time. PC Software Structure Below chart briefly outlines the NIRSIT LITE software structure for Window OS.

  • Page 28: Setting Serial Port

    Using NIRSIT-Lite Software Setting Serial Port 4.2.1 Connecting to Serial Port 1 [Default] BLED112 Dongle Default mode to use BLED112. Click “default”, then restart the program. Select comport “COM#” for the BLED112 (connected to PC) and press “Open” iii. Click “N-Lite scan” to find the device (power should be turned on) Select a device MAC address to use.
  • Page 29 2 [New] OBELAB BLE dongle New mode to use OBELAB BLE dongle. Click “New”, then restart the program. Select comport “COM#” for the OBELAB BLE dongle (connected to PC) and press “Open” iii. OBELAB dongle will be automatically connected to the nearest NIRSIT-Lite (power...

  • Page 30: Gain Calibration

    Using NIRSIT-Lite Software Gain Calibration 1 Select Gain Cal Start. Sensor Gain calibration of NIRSIT-Lite LED and detectors allows the device to measure optimal signals from the subject. The subject will need to stay calm with minimal physical movement during the CALIBRATION process to avoid possible artifacts. 2 Once calibration is complete and the time bar at the bottom turns blue, active channels will be shown with yellow circles.

  • Page 31: Monitoring

    Using NIRSIT-Lite Software MONITORING In MONITORING mode, two different modes are available for real time monitoring, both of which display the change in the cerebral oxygen saturation level of the subject. MONITORING comes with two sub-modes. MONITORING Mode 설명 3D mode visualizes the changes in the hemoglobin level in real- 3D Mode time on a 3D brain model.

  • Page 32: Monitoring Mode Screen Overview

    Using NIRSIT-Lite Software 4.4.1 MONITORING Mode Screen Overview 3D Mode TIME SERIES Mode Description Display on-screen filtering menu items as follows: ▪ LPF: Use a low-pass filter to remove high frequency noise. ▪ CHANNEL REJECTION: that do not meet the default/set SNR value. ▪...
  • Page 33 Using NIRSIT-Lite Software Description ▪ Measure Start: Start measurement of HbO2 Or HbR Or HbT ▪ Measure Finish: Finish the measurement and save data ▪ Y Axis Set: Set Y axis of Time Series graph ▪ Baseline: Set the baseline of initial MBLL value to the current value. Save the task start point by selecting the TASK A START button.

  • Page 34: Replay

    Using NIRSIT-Lite Software REPLAY REPLAY MODE plays measured data using saved database. 4.5.1 REPLAY Screen Overview REPLAY Mode 설명 Select DB : Select database to play Shows the path of database Display on-screen function menu items as follows: ▪ PLAY: Play saved data. PAUSE: Pause playing.

  • Page 35: Maintenance

    Maintenance Maintenance Replacing Accessories and Components 5.1.1 Replacing Straps Replace with a new strap if the current strap is dirty, damaged or feels loose. A strap can be removed by following the installation instructions in reverse order. Cleaning Make sure to turn off the NIRSIT device before cleaning. The device must be cleaned and stored after use.

  • Page 36: Troubleshooting

    Use a USB cable for a wired environmental factors (e.g. connection. congested area such as a big event venue). Information related to after-sales services and other technical information NOTE on the device can be found in the service manual provided by OBELAB.

  • Page 37: Product Specifications

    7. Product Specifications 7. Product Specifications Mechanical Characteristics Item Description Kids : 185.2 x 101.6 x 50 (mm) Size (Width x Depth x Height) Adult : 186.5 x 104.8 x 52.6 (mm) Kids : 163 (g) Weight (including battery) Adult : 172 (g) Technical Characteristics Item Description...

  • Page 38: Electrical Characteristics

    7. Product Specifications Electrical Characteristics Item Description Input Voltage (via USB port) Maximum Voltage (via USB port) 2.1 A Type Lithium ion polymer battery Usage Time Up to 5 hours(when fully charged) Battery Voltage 3.7 V Capacity 1000 mAh Data Storage Built-in memory in PC storage Communication Wireless BLE 5.0 (2.4 GHz)

  • Page 39: Appendix

    Appendix Appendix Guidance and Manufacturer’s Declaration 8.1.1 Guidance and Manufacturer’s Declaration – Electromagnetic Emissions This system is intended for use in the electromagnetic environment specified below. The customer or user of the system should ensure that it is used in such an environment. Emissions test Compliance Electromagnetic environment - guidance...

  • Page 40: Guidance And Manufacturer's Declaration - Electronmagnetic Immunity

    Appendix 8.1.2 Guidance and Manufacturer’s Declaration – Electronmagnetic Immunity This system is intended for use in the electromagnetic environment specified below. The customer or user of the system should ensure that it is used in such an environment. IEC 60601 Electromagnetic environment - Immunity test Compliance level...
  • Page 41 Appendix 8.1.3 Guidance and Manufacturer’s Declaration – Electronmagnetic Immunity – Equipment & Systems that are NOT life supporting This system is intended for use in the electromagnetic environment specified below. The customer or user of the system should ensure that it is used in such an environment. IEC 60601 Compliance Electromagnetic environment -...
  • Page 42 Appendix 8.1.4 Recommended separation distances between portable and mobile RF communications equipment and the system For systems that are not NOT life supporting This system is intended for use in an electromagnetic environment in which radiated RF disturbances are controlled. The customer or user of the system can help prevent electromagnetic interference by maintaining a minimum distance between portable and mobile RF communications equipment (transmitters) and the system as recommended below, according to the maximum output power of the communications equipment.
  • Page 43 Appendix...
  • Page 44 Appendix...

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