Thermal imager  
User Manual  
2
020/4/16  
www.BlueEyes.com.tw  
This manual applies to the following products  
BE-5302 Thermal Imager  
Thank you for using Blue Eye Technology's products.  
This booklet will introduce Blue Eye Technology products. It is recommended that you read this manual before  
you start using the product.  
Although the information in the manual has been verified in detail before publication, the actual product  
specifications will be based on the time of shipment. Blue Eye Technology makes no warranties, proclamations or  
implied warranties, and no other special purpose for the contents of this manual. In addition, the product  
specifications and information mentioned in this manual are for reference only and may be updated from time to  
time without notice. Blue Eye Technologies is under no obligation to assume any responsibility for any errors in  
the information contained in this manual, including software, firmware and hardware.  
Any product specifications or related information updates, please go to Blue Eye Technology official website  
directly, the company will not be notified. If you would like to get the latest product information, user manuals,  
firmware, or have any questions about BlueEyes products, please contact your local supplier or go to the official  
BlueEyes website for information.  
The contents of this manual may not be copied or used without the written consent of Blue Eye Technology, or  
otherwise altered in the information and distribution of this manual.  
The contents of this manual are the copyright of BlueEyes Technology.  
7
F-3, No.200, Sec. 4, Wenxin Rd., Taichung City 40462, Taiwan  
www.BlueEyes.com.tw  
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www.BlueEyes.com.tw  
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1
. Introduction  
1
.1 About this booklet  
Thank you for purchasing the BE-5302 Thermal Imager. In order to use this product properly, please  
read the entire manual carefully before using it, especially the section on "Safety precautions before  
use".  
If you have read this manual in its entirety, it is recommended that you keep it in a safe place with your  
thermal imager or in a place where you can access it at any time for future use.  
This manual will help you to quickly and effectively understand the functions and operation  
Please read this manual carefully before using the product.  
1
2
3
. read the instruction manual carefully and keep it for safekeeping. Follow the instructions  
in the instruction manual.  
. the screen display icons used in this manual may not match the graphics displayed on the  
screen. This may be caused by different software versions.  
. The version is indicated on the cover of this manual, so be sure to make sure the version  
you use is the same as the one in this manual.  
4
5
. Please ask us again for the latest version of the manual if it is different.  
. If you want to check the current firmware version, the Settings screen will show the  
current firmware version.  
6
. The Company recommends that you keep a separate written record of all important  
information and in some cases, the information stored in the electronic storage device  
may be lost or altered, therefore, the Company will not be responsible for the loss and  
unavailability of the information, whether due to misuse, repair, defect, expiration of use  
or any other reason.  
7
. The Company shall not be responsible for any economic loss or claim arising from the use  
of this product or any other features by third parties, such as the use of third party DIY  
firmware, loss or alteration of stored data, etc.  
8
9
. The screen layout in this user manual may differ from the actual layout, depending on the  
version of the software.  
. The information in this user manual is subject to change without prior notice, for details,  
please pay attention to BlueEyes Technology official website service support.  
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1
0. The Company is not responsible for the content downloaded from the Internet.  
1
.2 Precautions and restrictions before use  
To ensure proper use of this product, please read the following items and restrictions carefully before  
using.  
1
2
. Please read this manual carefully before using the product.  
. Infrared imaging thermometers can set the temperature compensation according to the  
field environment. If infrared imaging thermometers are used to measure the surface  
temperature of the human body, the surface temperature will change due to the  
measurement environment, the shape of the human body surface and the wearable, etc.  
The actual temperature of the human body must still be measured by government  
certified medical devices, such as ear guns, etc. Thermal imaging devices are not medical  
grade devices and cannot be used as the main actual temperature measurement of the  
human body. Temperature results are for reference only and should not be used as a  
basis for medical identification.  
3
4
. To avoid the risk of fire, electric shock or product damage, do not expose the machine to  
rain, dampness or liquid splashes, and do not place water containers such as vases on the  
machine.  
. Do not place this machine in a bookcase, hidden cabinet or other enclosed space. Do not  
allow curtains or any other object to block the ventilation holes to avoid the risk of  
electric shock or fire from overheating the machine.  
5
6
. Do not place an open flame source such as a lit candle on top of the unit.  
. do not open the case to avoid electric shock. Only those who are professionally trained  
and certified by our company should open them.  
7
8
9
. The best test distance for the infrared thermometer is 50-75cm, and the temperature  
measurement error within 1m is ±0.5.  
. The infrared video pyrometer is mounted on a three-legged camera stand, which is used  
for horizontal detection to achieve a more accurate measurement rate.  
. To ensure measurement accuracy, it is recommended to use at an operating environment  
of 15°C to 30°C and RH<85% (non-condensing).  
1
1
0. Use the infrared video thermometer in a windless indoor environment.  
1. Pedestrian flow control should be carried out at the detection site, and the measuring  
line should be mainly passed by a single person in slow steps, otherwise it will affect the  
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accuracy of the infrared video pyrometer measurement.  
1
1
2. The subject should be kept at a certain distance from the former, or the direction of the  
thermal imager should be changed to avoid overlapping images from affecting the  
temperature measurement. Thermal radiation can also be affected by the passing of time  
by keeping your head down or wearing a hat, which should be avoided as much as  
possible, otherwise the accuracy of the infrared thermometer measurements will be  
affected.  
3. The ambient temperature of the test should be stable and should not be measured in  
areas with high airflow such as fans, air vents of air conditioners, etc. Avoid heat sources  
(
e.g. drinking fountains, overhead lamps, sunlight, etc.), air outlets (e.g. ventilation doors,  
fans, etc.) and infrared surveillance cameras when erecting or installing infrared video  
thermometers.  
1
1
1
4. When switching to a new environment, turn the product on and leave it for 10 to 15  
minutes before measuring.  
5. The ambient temperature should be stable and should not be measured in areas with high  
airflow such as fans, air conditioning outlets, etc.  
6. When the measurement object comes from a place where the temperature difference in  
the measurement environment is relatively large, it is necessary to stay in the  
measurement environment for 10 to 30 minutes before taking the measurement.  
7. The thermal imager measures the surface temperature of the object, and if temperature  
compensation is required, go to the Setup page to adjust it.  
1
1
1
8. This product has a self-calibration function, if the reading has a rapid jump, please wait  
for 30 seconds or so, wait for the reading to be stable before taking the measurement.  
9. When the actual temperature differs from the measured temperature due to  
environmental factors, the infrared video pyrometer needs to be temperature  
compensated.  
2
2
2
2
0. Do not start measuring other subjects immediately after measuring the temperature of an  
extremely high or low temperature object, and leave for 10 minutes.  
1. Infrared video thermometers should not be used in places with strong sunlight because  
the radiant heat of the sunlight will affect the temperature sensor's detection.  
2. The infrared image pyrometer should not be used in an electromagnetic interference  
field.  
3. The infrared thermometer has operating limitations in small spaces because it is too close  
to focus.  
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2
2
4. If the screen is completely white, it is likely that the screen, the mask or the front lens is  
fogged with condensation.  
5. An infrared thermometer measures and captures images by the infrared radiation heat  
emitted by an object. In fact, since the radiation is a function of the surface temperature  
of an object, an infrared video thermometer can calculate and display this temperature.  
However, the radiant heat measured by an infrared imaging thermometer is not only  
dependent on the temperature of the object itself, but is also a function of emissivity.  
Radiation can also come from the surrounding environment and be reflected on objects.  
Radiation from an object and reflected radiant heat are affected by atmospheric  
absorption. To obtain accurate temperature measurements, it is necessary to compensate  
for some effects caused by different sources of radiation. Therefore, the thermal imaging  
camera must make reference to the emissivity and reflection of the object's apparent  
temperature parameters.  
2
6. The application of infrared thermal imaging cameras has its limits. In fact, it is judged by  
experienced users that the absorption and radiation of infrared rays on the surface of  
different materials to form a thermal image will be affected by the material and geometry  
of the surface. That is, we cannot rely solely on the images we obtain to determine  
whether they are actual differences or changes in temperature.  
1
.3 place  
1
. Place the machine on a flat surface, away from direct sunlight, and avoid high  
temperature, high humidity and frequent vibration. Failure to do so will result in damage  
to the chassis and other internal parts, thereby shortening the life of the machine.  
. The machine must be placed away from heat sources such as heaters, heat regulators,  
furnaces and other heat generating products.  
2
3
. use the product in a dry, ventilated and stable environment to avoid malfunction.  
1
.4 cleanliness  
1
2
. Unplug the power cord before cleaning the unit.  
. For difficult to clean spots, soak a soft cloth in water, wring it out, wipe it off, and dry the  
machine with a soft dry cloth.  
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3
. do not use any solvents, such as thinners and gasoline-based solvents, as such solvents  
can damage the surface of the machine.  
1
.5 Pedestrian flow control and route planning  
It is recommended that the detection of the field of pedestrian flow control, the use of railings or red  
dragon posts to guide the queue of people, the measurement of the moving line to a single person to  
pass slowly as the main, requiring the subject to take off the hat, do not bow their heads, and the  
former to maintain a certain distance, can be social distance of 1.5m for the front and back of the  
distance between the two people, otherwise it will affect the accuracy of the measurement of infrared  
video thermometer.  
The following is our proposed route arrangement.  
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1
.6 Temperature detection of major areas  
The temporal artery from the forehead to the upper edge of the temporal cavity is the main  
temperature detection area, which may affect the accuracy of the temperature measurement if the  
subject wears a hat, has a low head, has a long fringe, and has too large a frame.  
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1
.7 moisture-proof  
1
2
. Avoid damp areas such as damp basements when using this machine.  
. are prone to condensation in the following situations  
When you move the machine from cold to warm all of a sudden  
When you use the machine in a room where the heating is just turned on, or where  
the machine is placed where the air conditioning and heating sweep is located  
Move a machine that has just been used in an air-conditioned room to a hot and  
humid place during the hot summer months  
1
.8 Service  
1
. Do not repair this machine without permission.  
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2
3
4
. If the machine is repaired, disassembled or assembled by non-professional personnel,  
electric shock may occur or damage may be caused to the machine.  
. when the machine is used in an abnormal way, this generally means that it needs to be  
repaired  
. When replacement parts are required, ensure that the service technician replaces the  
factory-specified parts with parts with the same characteristics as the original parts.  
Replacement parts in violation may cause fire, electric shock or other damage.  
. In the event of any of the following or other malfunctions not specified in the manual,  
please contact your agent or our service center.  
5
Abnormal image, illuminated indicator, fumes  
Liquid or foreign matter is spilled into the machine  
After rain or watering the machine  
When the machine falls from a height or is damaged for other reasons  
When the machine is operated according to the instructions in this manual but does  
not work properly  
1
.9 Temperature measurement and calibration  
Under normal use, there is basically no need to calibrate the temperature of this equipment. In the  
event of a large measurement deviation and the automatic calibration is not possible, you can send it  
back to us for calibration.  
1
.10 Intellectual Property Rights  
Under normal use, there is basically no need to calibrate the temperature of this equipment. In the  
event of a large measurement deviation and the automatic calibration is not possible, you can send it  
back to us for calibration.  
1
.11 Updated Information  
The Company reserves the right to amend, adjust or change the contents of this manual, and in case of  
any incomplete matters, shall comply with the relevant regulations or explanations of the Company,  
and may at any time make supplementary announcement on the official website at the following  
address  
https://www.blueeyetech.com  
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www.BlueEyes.com.tw  
 
 
 
2
. Specification  
Sensor  
Temperature range  
Resolution  
Uncooled focal plane  
30˚C~45˚C  
0.1˚C  
Accuracy  
±0.5˚C @1m  
15cm  
Minimum measuring distance  
Temperature measurement response  
time  
≤500ms (95% of reading)  
Pixel of thermal imagery  
19200 (160×120)  
Pixel dimensions  
12μm  
Palettes  
Iron red, rainbow, white, black, red, lava, high-contrast rainbow  
Bandwidth of infrared spectroscopy  
8~14μm  
Field of view (FOV)  
56°(H) × 42°(V)  
6mrad  
50mk  
Instantaneous field of view (IFOV)  
Thermal imaging sensitivity  
Frame rate  
9Hz  
Center temperature measurement and high temperature  
tracking (default)  
BMP  
Temperature display  
Image format  
Image modes  
Thermal imagery, digital camera (visible light), fusion  
Besides central point, 3 temperature measuring points can be  
added  
Temperature measuring point  
Visible light  
Resolution of visible light  
Display resolution  
640×480  
320×240  
0
% (total visible light), 25%, 50%, 75%, 100% (total thermal  
Mixed setting  
imagery)  
PC analysis software (PC)  
Real-time image transmission  
Data communication  
√ (PC software image projection)  
Type-C USB  
Selectable (5min, 10min, 30min), 30min auto power off  
Auto power off  
(default)  
Service time  
6 hours  
Charging time  
5 hours  
Charging voltage/current  
Image storage  
5V/2A  
Micro SD card  
Power  
Display  
A single Li-ion 3.7V/5000mAh 26650 battery  
2.8" TFT LCD  
Product size  
Standard accessories  
Standard carton gross weight  
236mm x 75.5mm x 86mm  
Manual, Type-C USB cable, 16GB TF card  
2.2kg  
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3
. Appearance  
No.  
Description  
No.  
Description  
1
2
3
4
5
6
7
8
9
Upper casing  
USB Type-C terminal  
SD card slot  
Lower casing  
Terminal Protection Cover  
White Lighting  
Infrared Thermal Imaging Lens  
Visible Light Lens  
Take a shot of the trigger button.  
LCD monitor  
11  
12  
13  
14  
15  
16  
17  
18  
19  
20  
Power Switch  
Turn white light on or off  
Left button  
down key  
up key  
Photo Browser  
right click  
Back to button  
SET Setting Key  
Bracket fixing screw holes  
1
0
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4
. Show Description  
Screen Size: 2.8  
Resolution: 320 (vertical) x 240 (horizontal)  
10  
9
1
2
3
7
5
4
8
6
No.  
1
Description.  
No.  
Description.  
High Temperature Warning  
Center temperature  
6
7
Automatic tracking of temperature  
maximums  
Automatic tracking of temperature  
maximums  
2
3
4
5
Auto-calibration in progress  
8
9
Temperature Color Bar  
Current Battery Level  
Current Time  
Automatic tracking of temperature lows  
Main Menu  
10  
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5
. Power on/off  
Long press the power on key for 3 seconds and the thermal imaging device is turned on. After a long  
time of no use or a change in the measurement environment, you need to turn it on for 10~15 minutes  
before taking the temperature measurement. Long press power on for 3 seconds, the thermal imaging  
device will turn off  
Attention! If the computer is connected with a USB cable, please unplug the USB cable before starting  
the computer, otherwise it will not be able to start the computer due to the protection mechanism of  
the device.  
The thermal imaging camera needs to go through 5-6 seconds after starting the shutdown procedure.  
Please try to avoid repeatedly switching the machine on and off to avoid damage to the thermal  
imaging system.  
6
. Calibrating  
The product has a self-calibration function, if the reading has a fast jump, the word Calibrating will  
appear on the screen, do not measure at this time, wait for about 30 seconds, wait for the reading to  
stabilize and the word Calibrating will disappear before measuring.  
Attention! When the Calibrating... prompt appears on the screen, pause the temperature  
measurement, which may not be accurate. Please wait for the Calibrating... prompt to disappear before  
taking the measurement.  
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7
. Measurement  
The measurement function can select whether the center point or the high and low temperature point  
is on or off.  
1
2
3
4
. On the Thermal Imaging Measurement screen, press SET to call up the main menu.  
. press the left/right button to select the measurement option  
. Press the SET button to enter the measurement selection menu.  
. Press the up/down button to select whether the center or high/low temperature point of  
the measurement is on.  
5
6
. press the SET key to select the center point or high and low temperature point to open or  
close  
. Press the return button to return to the main menu and thermal imaging screen  
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8
. Palette  
BE-5302 can choose from a variety of color palettes, so that you can adjust the most suitable color  
palette according to the field environment and the use of the situation, the current color palettes  
include Iron, Rainbow, White Hot, Red Hot, Black Hot, Lava, Rainbow HC, etc.  
The BE-5302 is available in a variety of color palettes with the following steps  
1
2
3
4
5
6
. On the Thermal Imaging Measurement screen, press SET to call up the main menu.  
. press the left/right button to select the swatch options  
. Press the SET button to enter the color palette selection menu.  
. press the up/down button to select a different color palette  
. Press the SET key to apply the current swatch  
. Press the return button to return to the main menu and thermal imaging screen  
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Iron  
Rainbow  
White Hot  
Red Hot  
Black Hot  
Lava  
Rainbow HC  
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9
. Point Temperature  
To measure the temperature, proceed as follows  
1
2
. On the Thermal Imaging Measurement screen, press SET to call up the main menu.  
. press the left/right button to select the temperature measurement option, then press the  
SET button to enter the temperature measurement menu  
3
4
5
6
7
. Press the up and down buttons to select different temperature measurement points to  
turn on or off  
. Select the current temperature measurement point and press SET to enter the thermal  
imaging measurement screen.  
. Press the left/right/up/down button to move the temperature measurement point to the  
area of interest, press the SET button to apply, and read the current point temperature  
. If the current temperature point is selected to be turned off, press the SET key to turn it  
off.  
. Press the return button to return to the main menu.  
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1
0. Image Mode  
There are three types of Image Mode, including Thermal, Digital and Fusion.  
For the photo mode, proceed as follows  
1
2
3
4
. On the Thermal Imaging Measurement screen, press SET to call up the main menu.  
. Press the left/right button to select the photo mode configuration options  
. Press the SET button to enter the photo mode selection menu.  
. Press the up/down button to select different photo modes, the photo modes are thermal  
imaging, digital camera (visible light), fusion  
5
6
. Press the SET key to apply the current mode after selection.  
. Press the return button to return to the main menu and thermal imaging screen  
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