LONGOT NB Series Monocular Thermal Scope Imager User Guide

User Guide for LONGOT models including: NB Series, NB Series Monocular Thermal Scope Imager, Monocular Thermal Scope Imager, Thermal Scope Imager, Scope Imager

Longot Y050 User Manual

Y050 User Manual

Longot

UM

Shenzhen Longot Technology Development CO.,Ltd 729A Thermal sights 2A6JR-729A 2A6JR729A 729a

File Info : application/pdf, 25 Pages, 2.14MB

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Longot Thermal imager ·NB series ·User Manual

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/User Guide V1.0
NB225/NB225LRF/NB335/NB335LRF/NB635LRF/NB650LRF
All rights reserved and shall not be copied and distributed in any form without written permission

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DISCLAIMER
This product is prohibited for illegal use, including illegal hunting,military,chemical, biological or nuclear weapons,illegal privacy photographing,and other violations of laws and regulations.It is prohibited to transport goods prohibited by the United Nations,the European Union or the OSCE.The products are only sold in the place where the company is registered and cannot be exported. Purchase of this machine is equivalent to accepting the constraints of this statement, equivalent to agreeing to sign the relevant liability statement.In case of any violation,the company shall not be held responsible.
LONGOT TECHNIC

Packaging List NB Series Monocular Thermal Scope Rail Bracket screws*4 Hexagon Socket Wrench 18500 Rechargeable Lithium Battery*1 18650 rechargeable lithium battery*1 Dual Battery Charger Portable Bag Type-C USB Data Cable Lens Cleaning Cloth Extended battery compartment cover Bracket fastening wrench Warranty Card
Product Features ·12m Thermal Imaging Sensor ·High Image Quality ·Waterproof Rating: IP67 ·One-Click Calibration ·Long Detection Range ·Supports Laser Ranging ·Supports Wi-Fi Transmission ·Multiple Display Modes

Longot Thermal imager ·NB series ·User Manual

Model Detector Specifications Detector Type Resolution, Pixel Pixel Size, m NETD, mK Frame Rate, Hz Optical Characteristics Objective lens, mm Magnification, x Digital zoom, x

NB225

NB225LRF

256×192 12m 50mk 30Hz

25mm 3.6×
1x2x3x4x

25mm 3.6×
1x2x4x

Min Focus Distance, M/Y Exit pupil distance, mm Exit pupil Diameter, mm Field of View (H × V), degree Diopter, D
Recognize the distance, m (Target size: 1.7m×0.5m)) Rangefinder Characteristics Wavelength, nm Measuring Range, M/Y
Measurement accuracy, M/Y
Electrical Characteristics Display Type Resolution, pixels

5m 48 mm 6 mm 7°*5.3° -4D~+4D 615 m
/ / /
OLED 1024×768

5m 48 mm 6 mm 7°*5.3° -4D~+4D
615 m
905 1000m 5m~400m±
1m 400m
±(dx0.3)
OLED 1024×768

NB335

NB335LRF

NB635LRF

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NB650LRF

384×288 12m 50mk 30Hz

VOX 384×288 12m 50mk 30Hz

640×512 12m 50mk 30Hz

35mm 3.4×
1x2x4x
10m 48mm 6 mm 7.5°*5.6° -4D~+4D
860 m

35mm 2.0×
1x2x4x8x 10m
48mm 6 mm 12.5°*10° -4D~+4D
860 m

50mm 2.8×
1x2x4x8x 10m
48mm 6 mm 8.8°*7° -4D~+4D
1229 m

905

1000m

5m~400m± 5m~400m± 5m~400m±

400m

400

±(dx0.3)

OLED 1024×768

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Model WiFi Frequency,GHz Video/Photo fomat Built-in memory GB Power Supply V
Battery type*QTY/Capacity, mA

2.4GHz avi/jpg
32 G 3~4.2V 18500 Battery x
1/ 18650 Batteryx1 2300mAh/3200
mAh

External power supply V

5V2A

Others CharacteristicsSupport Operating time (at t=22 ,

7hrs/

hours

10hrs

Storage temperature, /

-30 ~+60

2.4GHz avi/jpg
32 G 3~4.2V 18500 Battery x
1/ 18650 Batteryx1 2300mAh/3200
mAh 5V2A
7hrs/ 10hrs -30 ~+60

2.4GHz avi/jpg
64 G 3~4.2V 18500 Battery x
1/ 18650 Batteryx1 2300mAh/3200
mAh 5V2A
5hrs/ 8hrs -30 ~+60

2.4GHz avi/jpg
64 G 3~4.2V 18500 Battery x
1/ 18650 Batteryx1 2300mAh/3200
mAh 5V2A
4hrs/ 7hrs -30 ~+60

Body material Degree of protection, IP code (IEC60529) Seismic coefficient, joules
Dimension L*W*H), mm

Aluminium alloy IP67

6000J

198mmx74mmx 60mm

198mmx103mmx 60mm

6000J 200mm×73.5 mm×64 mm

6000J

200mmx106mm x64mm

216mmx106mm x74mm

Weight(without battery), g

538g

588g

525g

575g

665g

Longot Thermal imager ·NB series ·User Manual
Pay attention to 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 device 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 device 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 device does cause harmful interference to radio or television reception, which can be determined by turning the device 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 device and receiver. --Connect the device into an outlet on a circuit different from that to which the receiver is connected. --Consult the dealer or an experienced radio/TV technician for help

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requirement. The device can be used in portable exposure condition without restriction.
Changes or modifications not expressly approved by the party responsible for compliance could void the user's authority to operate the equipment
The device has been evaluated to meet general RF exposure requirement. The device can be used in portable exposure condition without restriction.

Longot Thermal imager ·NB series ·User Manual
Product Overview The NB series is a multifunctional and highly adaptable thermal imaging scope. It offers multiple models to meet users' different resolution needs. The NB series features a classic waterproof and shock-resistant aluminum alloy housing, ensuring durability and reliability. With its high performance and convenience, the NB series is an ideal choice for outdoor enthusiasts.
Functional Testing Before use, ensure that the device shows no visible damage. Test whether the device displays clear, interference-free images. Verify that the thermal imaging camera settings are correctly configured.
Intended Use This device is designed for self-observation, long-range hunting observation, wildlife monitoring, and high-temperature object detection. This product is a precision instrument. It is intended only for the described applications. The manufacturer and its authorized distributors are not responsible for any damage caused by improper use or incorrect handling of the device.

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Environmental Impact Note: Avoid exposing the device's sensor directly to strong sunlight or laser light, as well as intense reflections. Objects and targets may appear as abnormally bright spots or have internal component damage.
Risk of Falling Note: Please place the device securely in areas where it cannot fall. Improper handling may cause component misalignment or lens damage.
Safety Instructions for Use Do not place the device in fire or high-temperature environments. When operating in low-temperature environments, the battery capacity may decrease. This is not a malfunction but is due to the characteristics of the battery. Store the device in a carrying bag and keep it in a dry, well-ventilated place. If storing for an extended period, please remove the battery. Do not expose the device to extreme temperatures below -20°C or above +50°C. The device should only be connected to a USB Type-C interface. If the device is damaged or not functioning properly, please send it to the Longot After-Sales Service Department for repair.

Longot Thermal imager ·NB series ·User Manual
Button Function

Button

Device StatusCurrent operating mode

Power Button

Any Status

Menu Button

Main Interface State
Shortcut Menu/Main Menu Interface

Up Button / Zoom Button

Main Interface State Shortcut Menu/Main Menu Interface
Blind Pixel Calibration Interface

Down Button / Zoom Button
Up Button+ Down Button Menu Button + Down Button

Main Interface State
Shortcut Menu/Main Menu Interface Reticle/Blind Pixel Calibration Interface
Main Interface State
Main Interface State

Short Press
Standby/Wake Up
Open Shortcut Menu Cycle Through Current Menu Options Cycle Zoom Scroll Up Through Menu Options
Move Up/Left
Ranging on/off (short press the down button again for a single distance) Scroll Down Through Menu Options Move Down/Right
Open the reticle
Take a Photo

Long Press Standby/Wake Up Open Main Menu
Back to Main Interface Manual Shutter Calibration Fast Upward Movement Fast Upward/Leftward Movement
Switch Color Palette
Scroll Down Through Menu Options Fast Downward/Rightward Movement Fast Downward/Rightward Movement
Start/Stop Recording

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Longot Thermal imager ·NB series ·User Manual
Components and Operations Objective Lens Focus Ring Laser Rangefinder Eyepiece Focus Ring Power Button Up Button/Zoom Button M Button/Menu Button Down Button/Ranging Button Objective Lens Cover Picatinny Rail USB Waterproof Cover Type-C Interface Battery Compartment Cover Eyecup

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Rail Mount Installation ·Before using the device, attach the mounting rail() to the two installation holes at the bottom of the product. ·Use the provided hex wrench and screws () to secure and tighten the bracket () onto the device's mounting base (). ·Mount the rail() onto the Picatinny rail. ·Tighten the fastening nut () to secure the setup after installation.

Device Charging ·The NB series is equipped with 18500/18650 rechargeable lithium batteries. The battery is partially charged before leaving the factory. It is recommended to charge the device before first use. Please use a power adapter with an input of AC 110V-240V, output of 5V 2A, and connect it to the device's Type-C port using the Type-C USB data cable for charging. ·When the device is charging, the charging indicator light will
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turn red and remain on. Once charging is complete, the charging indicator light will turn off. After charging is complete, please remove the battery from the charger to avoid overcharging. Notice: If the user does not plan to use this product in the short term, ensure the battery is charged to at least 75% to prolong its lifespan.
Operation ·Install Battery Unscrew the battery compartment cover ( ) on the device.Install the 18500/18650 battery into the battery compartment with the positive terminal facing downward.Tighten the battery compartment cover ( ). ·Power On: Long press the power button ( ) for 4 seconds to start. Once powered on, open the objective lens cover ( ). ·Diopter Adjustment: Rotate the diopter adjustment knob ( ) until the text on the display appears clear. For the same user, there is no need to adjust the diopter when used again. ·Focus Adjustment: Rotate the objective focusing ring ( ) to adjust the focus on the observed object. ·Shortcut Menu Navigation: Short press the menu button ( ) to open the shortcut menu. Use the Up Button / Zoom Button ( ) and Down Button / Ranging Button ( ) to navigate through the menu. Short press the menu button ( ) repeatedly to cycle through options such as Reticle Distance Memory, Screen Brightness, Contrast, Scene Mode,

PIP, Wi-Fi Switch, Rangefinding Settings. Long press the menu button ( ) to exit to the main screen after finishing. ·Power Off: Long press the power button ( ) for 2 seconds, the shutdown countdown screen will appear and the device will shut down.
Menu/Status Bar Icon Description The status bar is an overlay displayed at the bottom of the device's preview screen, providing auxiliary information. Once enabled, user can instantly access details such as the reticle memory, battery level, and functional status of the device.
1-Wi-Fi Status 2-Microphone Status 3-Reticle Distance Memory 4-Current Shooting Distance 5-Ballistic Parameters 6-Refresh Countdown 7-Time and Date 8-Battery Level

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Quick Menu

"Up Button" or "Down Button" to adjust the reticle memory

(25m-500m in 25m increments).

Short press the "Menu Button" to save the settings. Long

press the "Menu Button" to exit.

Note for Rangefinder Version:

After turning on the rangefinder, the ballistic point will be

automatically generated based on the measured distance.

The ballistic point will be displayed as a green inverted

On the observation interface, short press the "Menu Button" to enter the quick menu. The quick menu includes the following options: Reticle Distance Memory, Screen Brightness,Contrast,Scene Mode, PIP, WiFi, Range Settings (Range version) Button Functions in the Menu Interface Short press the "Up Button" or "Down Button": Switch between menu options or adjust parameter values in submenus. Short Press the "Menu Button": Adjust parameter values. Long Press the "Menu Button": Exit and save the settings.
Reticle Distance Memory Switch between reticle memory settings for different ranges. On the preview interface, short press the "Menu Button" to enter the quick menu. Short press the "Up Button" or "Down Button" to navigate to "Reticle Distance Memory."
Short press the "Power/Menu Button," then short press the

triangle icon below the reticle. If the menu is opened, the rangefinder will automatically turn off, and the reticle will be hidden. The reticle's zeroing distance (i.e. the shooting distance) will automatically be set to the last measured value. When the menu is closed and the reticle reappears, the center of the reticle will indicate the aiming point for the current distance.
Brightness Adjustment Higher brightness levels make the image brighter. When the preview scene is too dark, user can increase the brightness to improve the clarity of the displayed image. On the preview interface, short press the "Menu Button" to enter the quick menu. Short press the "Up Button" or "Down Button" to navigate to "Brightness." Short press the "Menu Button" to adjust the brightness level (1-5).

Longot Thermal imager ·NB series ·User Manual
Long press the "Menu Button" to save the settings and exit. Long press the "Power/Menu Button" to return to the observation interface.
Contrast Higher contrast enhances the difference between light and dark areas, as well as color contrast. Increase contrast in complex scenes to highlight different targets. On the preview interface, short press the "Menu Button" to enter the quick menu. Short press the "Up Button" or "Down Button" to navigate to "Contrast." Short press the "Menu Button," then short press the "Menu Button" to adjust the contrast level (1-5). Long press the Menu Button" to return to the observation interface.
PIP PIP refers to a locally magnified image of the scene center, overlaid on the preview interface. User can enable PIP to view details of key areas in the image. On the preview interface, short press the "Menu Button" to enter the quick menu. Short press the "Up Button" or "Down Button" to navigate to "PIP". Short press the "Menu Button" to turn on or off. Long press the "Menu Button" to return to the observation interface.

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Scene Mode The scene mode : City Mode, Forest Mode, Rock Mode,Bird Mode The scene mode optimizes the device's performance for different environments. User can select the appropriate scene mode during preview to achieve better image quality. On the preview interface, short press the "Menu Button" to enter the quick menu. Short press the "Up Button" or "Down Button" to navigate to "Scene Mode." Short press the "Menu Button," then Short press the "Menu Button" to through the available scene modes. Long press the "Power/Menu Button" to return to the observation interface.
Photography NB series is equipped with a function for video recording and photography of the NB series is equipped with a function for video recording and photography of the observed image which is saved on the built-in 32GB memory storage. The photo and video files are named with time, so it is suggested to reset the date and time in the Main Menu before using the photo and video functions.

Longot Thermal imager ·NB series ·User Manual
WIFI The device supports Wi-Fi connectivity, allowing user to establish a wireless connection with mobile devices such as smartphones. On the preview interface, short press the "Menu Button" to enter the quick menu. Short press the "Up Button" or "Down Button" to navigate to "Wi-Fi." Short press the "Menu Button" to turn on or off. Connecting to Wi-Fi: Enable Wi-Fi on the mobile device and select the device's network for connection. Wi-Fi Name : LGT + serial number Wi-Fi Password: 12345678
Color Mode On the preview interface, short press the "Power/Menu Button" to enter the quick menu. Rotate the encoder to navigate to "Color Mode." Short press the "Power/Menu Button," then rotate the encoder to cycle through color modes: White Hot, Black Hot, Iron Red, Fluorescent, Deep Brown, Red Hot, Ghost, etc. Short press the "Power/Menu Button" to save the selected mode and exit. Long press the "Power/Menu Button" to return to the observation interface.

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Range Settings (Range version) On the preview interface, short press the "Menu Button" to enter the main menu. Short press the "Up Button" or "Down Button" to navigate to ranging setting, short press "Menu button" to switch switch the single/continuous mode of ranging function. Long press the Power/Menu Button exit the observation screen.
Main menu

Longot Thermal imager ·NB series ·User Manual
Reticle Settings In the preview interface, long press the "Menu Button" to enter the main menu. Short press the "Up Button" or "Down Button" to navigate to Reticle Settings, then short press the "Power/Menu Button" to enter the reticle settings. 1-Reticle Type - Rotate the encoder to move to Reticle Type, short press the "Power/Menu Button," then rotate the encoder again to switch between R1-R10 types. After selection, short press the "Power/Menu Button" to save and exit the settings. 2-Reticle Color - Rotate the encoder to move to Reticle Color, short press the "Power/Menu Button," then rotate the encoder again to switch colors. After selection, short press the "Power/Menu Button" to save and exit the settings. 3-Return to Main Menu

Zeroing profile

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In the preview interface, long press the "Menu" button to enter the main menu. Short press the "Up Button" or "Down Button" to navigate to the " zeroing profile," then short press the "Menu" button to enter. 1-Reticle Memory : A, B, C, D, E are available. After selecting, the status bar will display the current reticle memory. There are a total of 5 reticle memories. 2-Sight Height Select the corresponding reference height, ranging from 3CM to 19.5CM, with increments/decrements of 0.5CM. 3-Ballistic Parameters User can choose the ballistic parameters already loaded in the scope or perform custom user settings. For custom ballistic parameters, after selecting the "User Custom" option, the scope will enter the interface as shown in the following image.

The point of impact is positive if it is above, and negative if it is below. 50m Drop For the zeroing height, please input the drop of the point of impact at 50m. 100m Drop For the zeroing height, please input the drop of the point of impact at 100m. 150m Drop For the zeroing height, please input the drop of the point of impact at 150m. 200m Drop For the zeroing height, please input the drop of the point of impact at 200m. 250m Drop For the zeroing height, please input the drop of the point of impact at 250m. 300m Drop For the zeroing height, please input the drop of the point of impact at 300m. Ballistic Drop Correction When the user is using ballistic parameters loaded in the scope or user-customized ballistic parameters, and shooting deviations occur, this menu allows for corrections to be made for specific distances. After selecting this option, the scope will enter the interface shown in the following image.

Longot Thermal imager ·NB series ·User Manual
Note: If the ballistic point is inaccurate, this function can be used to make corrections. The ballistic drop correction should be applied after completing the zeroing calibration.

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5.Return Short press the menu button to exit the submenu and return to the previous menu.
Zeroing Calibration On the preview interface, long press the "Menu Button" to enter the main menu. Short press the "Up Button" or "Down Button" to navigate to "Zeroing Calibration," then short press the "Menu Button" to enter the calibration settings.

The correction parameter defaults to 0, meaning no

adjustment is applied to the reticle position.

When selecting a specific distance for correction, the

lower-left corner will display a prompt indicating how many

centimeters each unit of reticle movement represents at

the current distance.

1.X-Axis Coordinate Correction Adjust the X-coordinate

correction value of the reticle.

2.Y-Axis Coordinate Correction Adjust the Y-coordinate

correction value of the reticle.

3.Magnification Calibration Calibration is only supported

at 1x, 2x, and 4x magnifications.

4.Image Freeze Freeze and unfreeze the display. When adjusting the reticle position, user can aim the reticle at the shooting position, freeze the image, and then move the reticle to align with the bullet hole.

When the impact point deviates significantly from the aiming point during the initial installation of the scope or during shooting, use this function.

Longot Thermal imager ·NB series ·User Manual
Enter the zeroing calibration mode. User can choose between Automatic Zeroing Calibration and Manual Zeroing Calibration. Refer to the zeroing calibration operation for specific calibration procedures. Automatic Zeroing Calibration:Enter the automatic zeroing calibration mode. To perform automatic zeroing calibration, place the calibration target at a distance of 25 meters. Follow the automatic zeroing calibration steps to operate. After completing the calibration, if users need to verify the accuracy of the first-shot automatic zeroing, aim at a target placed at 50 meters or 100 meters and fire a shot for verification. Automatic Zeroing Calibration Steps: Step 1: Select "Automatic Zeroing Calibration." A rectangular frame will appear in the center of the screen. The device will automatically disable electronic zoom and image auto-correction. A confirmation box for the calibration distance of 25 meters will appear in the center of the screen.

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After selecting "Confirm," a 15-second preparation countdown will appear in the upper right corner of the screen. This time is provided for the user to complete shooting preparation operations.
Step 2: After the countdown ends, the prompt in the upper right corner of the screen will change to "Aim at the target and shoot.".

Step 3: Aim at the calibration object or target placed at 25 meters, ensuring the rectangular frame is positioned on the target surface.
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Longot Thermal imager ·NB series ·User Manual
Fire one shot. The scope will automatically search for the thermal signal of the impact point on the target. Step 4: Keep the weapon stable and ensure the target remains within the rectangular frame as much as possible. When the device displays the message "Data processing. NO OPERATION, please." user may put down the weapon and wait for the device to complete data processing.

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If the screen displays "No bullet holes detected, shoot again," it indicates that the device failed to detect the impact point, and the zeroing calibration was unsuccessful. In this case, repeat Steps 1 to 5 to perform the calibration again.
Manual Zeroing Calibration Users can choose manual zeroing calibration to manually zero the scope. The user needs to input the deviation distance (cm) between the impact point and the aiming point during calibration. The device automatically calculates and adjusts the reticle position based on the input distance value.

Step 5: When the screen displays "Confirm the current options?" select "Yes" to verify that the software has correctly identified the impact point. This completes the automatic zeroing calibration.
The prompt in the lower left corner indicates the centimeter value represented by each unit of reticle movement at the current distance. Calibration Options: 1-X-Axis Coordinate Adjustment: Adjust the X-axis reticle coordinate correction value.
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2-Y-Axis Coordinate Adjustment: Adjust the Y-axis reticle coordinate correction value. 3-Magnification Calibration: Calibration is only supported at 1x, 2x, and 4x magnification levels. 4-Frozen Image: Freeze or unfreeze the screen. When adjusting the reticle position, aim the reticle at the shooting position, freeze the image, and then move the reticle to the impact point position. Return: Confirm the adjustments and exit the menu after saving the settings. Note: Ballistic Calculation Function

Recoil-Activated Recording Settings On the preview interface, long press the "Menu Button" to enter the main menu. Short press the "Up Button" or "Down Button" to navigate to "Recoil-Activated Recording Settings," then short press the "Menu Button" to turn on or off. Long press the "Menu Button" to save and exit. When enabled, the device will automatically start recording and save 15 seconds of video before and after detecting an impact. The recorded videos can be exported by connecting the device to a PC.

First, set the bullet type and sight height in the zeroing profile.

Refresh Settings On the preview interface, long press the "Menu Button" to

After completing the zeroing calibration, turn on the

enter the main menu.

rangefinder.

Short press the "Up Button" or "Down Button" to navigate to

The device will automatically perform ballistic calculations

"Refresh Settings," then short press the "Menu Button" to

based on the current zeroing distance and the measured

cycle through the automatic refresh time options (1 minute,

target distance.

3 minutes, 5 minutes, or off).

The corresponding ballistic point will then be displayed in

Long press the "Menu Button" to save and exit.

the reticle.

Note: Even in any refresh setting mode, user can manually

Microphone Settings On the preview interface, long press the "Menu Button" to

refresh by long pressing the Up button/Zoom button. Status bar setting

enter the main menu.

On the preview screen, long press the menu button to enter

Short press the "Up Button" or "Down Button" to navigate to

the main menu. Short press the Up or Down button to move

"Microphone Settings," then short press the "Menu

to the status bar setting. Short press the Menu buton to

Button" to turn on or off.

enable or disable the status bar function. Long press the

Long press the "Power/Menu Button" to save and exit.

Menu button to save and exit

Longot Thermal imager ·NB series ·User Manual
Video Output Settings On the preview interface, long press the "Menu Button" to enter the main menu. Short press the "Up Button" or "Down Button" to navigate to "Video Output Settings," then short press the "Menu Button" to turn on or off. Long press the "Menu Button" to exit.
Blind Pixel Calibration When using the device, defective pixels may appear on the detector, such as bright or dark spots visible on the image. The blind pixels calibration function can be used to remove these defective pixels from the detector or cancel their correction. On the preview interface, long press the "Menu Button" to enter the main menu. Short press the "Up Button" or "Down Button" to navigate to "Blind Pixel Calibration Settings," then short press the "Menu Button" to enter the blind pixels calibration interface. A small reticle cursor will appear at the center of the screen:

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X represents the horizontal axis (left-right direction). Y represents the vertical axis (up-down direction). Short press the "Menu Button" to confirm the selection. When selecting the X-axis or Y-axis direction, short press the "Menu Button" to enter the adjustment settings. Use the up or down button to move the cursor: The up button moves the cursor left or up.The down button moves the cursor right or down. Short press to move one pixel at a time.Long press to enable rapid continuous movement. After moving the cursor to the position of the defective pixel, short press the "Menu Button" to return to the previous level.
Select the option" " and short press the "Menu Button," then choose "Yes" to perform defective pixel correction. After selecting the "Zoom Defective Pixel Correction" menu, the screen will zoom in by 2x to facilitate more precise correction. Return to the previous level, save the settings, and exit to the main menu.
Time Settings On the preview interface, long press the "Menu Button" to enter the main menu. Short press the "Up Button" or "Down Button" to navigate to "Time Settings," then short press the "Menu Button" to enter the time settings.

Longot Thermal imager ·NB series ·User Manual
Short press the "Menu Button" to switch between adjusting "Year/Month/Day" and "Hour/Minute." Short press the "Up Button" or "Down Button" to adjust the numerical values. Long press the "Menu Button" to save the settings and exit.
Language Settings On the preview interface, long press the "Menu Button" to enter the main menu. Short press the "Up Button" or "Down Button" to navigate to "Language Settings," then short press the "Menu Button" to cycle through language options: Chinese, English, Russian, German, Arabic, French, Italian, and Spanish. Long press the "Menu Button" to save and exit.
Restore Zero Parameters On the preview interface, long press the "Menu Button" to enter the main menu. Short press the "Up Button" or "Down Button" to navigate to "Restore Zero Parameters," then short press the "Menu Button" to enter the restore function. Short press the "Up /Down Button" to to switch options, and short press the "Power/Menu Button" to confirm. After confirmation, all calibrated zeroing data will be restored to default values. Please proceed with caution. Long press the "Menu Button" to exit.

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Basic Inspection It is recommended to carry out a technical inspection before each use. Please check the following: . The appearance: there should be no cracks in the body or visible damage. . The condition of the objective lens and eyepiece: there should be no cracks, greasy spots, dirt, or other deposits on the lens. . The internal rechargeable battery pack should be fully charged.
Cable connection and Accessing the internal memory 1-Open the Type-C port cover and align the Type-C port to connect the USB cable. By connecting the USB cable to the Type-C port, user can link the device to a computer to view or export recordings and photos stored on the device. Additionally, connecting an external 5V power supply can directly power the device. When using a cable to connect the device, avoid pulling the cable directly. Otherwise, it may damage the cable or cause circuit malfunctions, affecting normal use. 2-Use the USB cable to connect the device to a computer. After the connection, short press the Up or Down button to move the device to the USB storage. 3-Open the corresponding date file on the device's disk, and enter the file containing photos or videos.

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Select the video files or photos you wish to export and copy

Recoil Activation: Off

them to the computer.

Zoom : 1x

4-After the export is complete, disconnect the USB cable

Refresh Time: 3 minutes

from the computer.

Video Output: Off

5-The file names are in the format of YY/MM/DD. For example, if the photo or video was taken on December 1,

Device Information User can view the current device's model, version, serial

2024, the corresponding folder name will be "20241201." This

number, and other information on the device.

time is based on the device's system time.

On the preview interface, long press the "Menu Button" to

Restore Factory Settings On the preview interface, long press the "Menu Button" to enter the main menu. Short press the "Up Button" or "Down Button" to navigate to "Restore Factory Settings," then short press the "Up /Down Button" to navigate to to switch options. Short press

enter the main menu. Short press the "Up Button" or "Down Button" to navigate to "Device Information." then short press the "Menu Button" to confirm. It will display the current device's model, serial number, and system version information. Long press the "Menu Button" to exit.

the "Menu Button" to confirm. After confirmation, all settings will be restored to default

Basic Maintenance Basic maintenance should be carried out at least twice a

values. Please proceed with caution.

year and includes the following steps:

After restoring factory settings, the following settings will revert to their initial configurations:

· Wipe the surface of the external metal and plastic components with a clean, dry cotton cloth.

Image Mode: White Hot Screen Brightness: Level 2

· Clean the electric contacts and battery slots using a non-greasy organic solvent.

Contrast: Level 3 Image Mode: City

·Check the lens and eyepiece. If necessary, remove any dirt or sand from the optics; a non-contact cleaning method is

PIP: Off

preferred.Cleaning the exterior of the lens should only be

Ranging: Single

done with the included professional wiping tools and

Reticle Style: R1

solvent.

Reticle Color: White Red

Longot Thermal imager ·NB series ·User Manual

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After service Thank you for choosing this product. in order to fully enjoy the perfect after-sales service support, please carefully read the instructions of this product warranty card after purchase and keep it properly. We will provide after-sales service according to the manufacturer's after-sales service policy,including: 1.The warranty period starts from the first purchase date of the product, and the purchase date is subject to the invoice date of the purchased product. if there is no valid invoice, the warranty period will be calculated from the product delivery date. if the invoice date of the product is later than the actual delivery date of the product,the warranty periodstarts from the actual delivery date of the product. The warranty period shall be implemented according to the after-sales service policy of the manufacturer. 2. No warranty coverage. 1. Exceeding the specified warranty period; 2.Failure or damage caused by misuse, accident, modification, improper physical or operating, environment, natural disasters, power surges and improper maintenance or storage; 3.Failure or damage caused by third.party products, software, services or behaviors; 4.Normal decolorization, wear and consumption during product use;

5.The product can run normally without interruption or error; 6.Data loss or damage; 7.Consumable parts, such as batteries or protective films, which are consumed with time, unless it is a failure due to material or process defects. 8. The valid warranty certificate and valid original purchase invoice or receipt of the product cannot be produced, the original serial number label of the product is altered, replaced or tom, the product has no serial number.or the product model or number on the warranty certificate is inconsistent with the actual product. 9. if the product is not used according to the attached instructions and operation manual, or the product is not used in the intended function or environment. The manufacturer determines that you violate the operation manual after confirmation; 10.The completeness and appearance of the products are not guaranteed so you should inspect the products on the spot when accepting them and raise objections to any discrepancies. 3. The manufacturer is not responsible for the extra promises made to you by the seller or any other third party, and you should ask these third parties to honor the mm. 1. With this card, you can enjoy the free warranty within the warranty period and the preferential services outside the

warranty period.

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2 This warranty card is only applicable to the products in this warranty card, and it is valid after being stamped by the sales unit. 3. Product warranty terms of special projects shall be subject to the specific purchase and sale contract.
Safety precautions .Use of the product must be in strict compliance with the local electrical safety regulations. .Use the power adapter provided by qualified manufacturer Refer to the product specification for detailed power requirements, it is recommended that equip with independent power adapter for each device.(D0 NOT connect multiple devices to one power adapter, to avoid over-heating or fire hazards caused by overload.) ·lf smoke,odor, or noise arises from the device,immediately turnoff the power, unplug the power cable, and contact the service center. ·DO NOT place the battery near heating or fire source, Avoid direct sunlight. ·lf the device equips with build-in removable battery, please use proper battery,improper use or replacement of the battery may result in explosion hazard, The battery compartment requires to be closed after installation or taken away. ·Do NOT place the battery in the reach of children. ·lt is recommended to reboot the device every 2 hours when using it to ensure the device performance.

·D0 NOT drop the things on the device or vibrate device. DO NOT expose the device to high electromagnetic radiation. ·D0 NOT install the device in a place where surface vibrates or is vulnerable to shock(ignore it may cause the device damage) · D0 NOT use the device in extremely hot, cold, dusty,corrosive saline-alkali or humid, Refer to the product specification for detailed requirements. · Please close the lens cover to protect the image sensor when the device is not in use. · The device should place in an airy and no erosive gas environment, DO NOT place it in direct sunlight,insufficient ventilation or near heat source environment (e,g.: heater, radiator), lgnore this item may cause a fire risk. . If the device should be stored fora long time, it should be checked by connecting to power supplies every 6 months, And the electric time can not be less than 3h. · Please clean the lens with a dry soft cotton cloth or lens wiping paper to avoid scratching the lens. ·Users acknowledge that the nature of intemet provides for inherent security risks, and our company shall not take any responsibilities for abnormal operation, privacy leakage or other damages resulting from cyber-attack, hacker attack, virus inspection,or other internet security risks;however, our company will provide timely technical support if required. Users may face network security problems when the device connects to the Internet, please strengthen the protection

Longot Thermal imager ·NB series ·User Manual

of personal information and data safety, when you find your device has network security problems, please contact us in time. *Keep all wrappers after unpacking them for future use, In case of any failure occurred, you need to return the device to the factory with the original wrapper,Transportation without the original wrapper may result in damage on the device and the company shall not take any responsibilities.

Troubleshooting

The table below lists all potential issues that may arise

when operating the device. Follow the recommended

checks and fixes to resolve them. If the issue is not listed

or cannot be fixed, the device should be returned to the

manufacturer or supplier for servicing.

Issue

Possible Cause Solution

Thermal imager Battery

is Charge the battery

won't turn on

wearing out.

External power USB cable is Replace

supply is not damaged.

necessary

working

External power Check the external

source

has power source if

insufficient

needed

charge

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Image is unclear, Device needs Perform

image

abnormal, or calibration

calibration according to

uneven

the manual

Image is too Screen

Adjust screen brightness

dark

brightness is

too low

Poor

image Adverse weather conditions (snow, rain, fog,

quality

or etc.) may affect performance

detection range

is short

Cannot connect Incorrect Wi-Fi Enter the correct

to a smartphone password

password

or computer

Too many Wi-Fi Move the device to an

networks in the area with fewer or no

area

causing Wi-Fi networks for a

interference

more stable connection

The Wi-Fi signal The device is out Relocate your device to

disappearsor is of wi-Firange; Or a place where you can

interrupted

there is an see the wi-Fi signal

obstruction (such directly.

as a concrete

wall) between the

device and the

receiver.

Longot Thermal imager ·NB series ·User Manual

When used the At temperatures above zero, the object

device under being observed (environment and

low temperature background) heats up differently due to

conditions, the different thermal conductivity, resulting in a

image quality is high-temperature contrast, so the image

worse than that quality will be higher.

under positive In low temperature conditions, the object

temperature

being observed (the background) will

conditions

usually cool to roughly the same

temperature because of the temperature

The degree of contrast is greatly reduced,

and the image quality (detail) is poor. There

is a characteristic of thermal imaging

equipment.

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References

WPS 文字