ICI GC-76 User manual

PLEASE READ THIS MANUAL BEFORE SWITCHING THE UNIT ON.
IMPORTANT SAFETY INFORMATION INSIDE.
Shown with a 13 mm lens.
2105 W. Cardinal Dr. Beaumont, TX 77705
ICI cameras fall under US Federal Law and Export Control.

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
GC-76 GAS LEAK DETECTION CORE
USER MANUAL
PLEASE READ THIS MANUAL BEFORE SWITCHING THE UNIT ON.
IMPORTANT SAFETY INFORMATION INSIDE.

GC-76 GAS LEAK DETECTION CORE USER MANUAL
2
Revision History
 Document created

GC-76 GAS LEAK DETECTION CORE USER MANUAL
3
Disclaimers ���������������������������������������������������������� 4
1-1 Terms and Conditions.........................................................................4
1-2 U.S. Government Regulations .............................................................4
1-3 Copyright .............................................................................................4
1-4 Quality Assurance ...............................................................................4
1-5 Customer Help .....................................................................................4
User Notice����������������������������������������������������������� 5
2-1 Calibration of Thermal Devices .........................................................5
2-2 Accuracy of Thermal Devices............................................................5
2-3 Cybersecurity.....................................................................................5
2-4 Disposal of Electronic Waste ............................................................5
2-5 Intended Use .....................................................................................6
2-6 Manual Update ...................................................................................6
2-7 Scope of Application .........................................................................6
2-8 Authoritative Versions ......................................................................6
2-9 Training .............................................................................................. 7
Safety Information ��������������������������������������������������� 8
Technical Specifications ��������������������������������������������10
Structure������������������������������������������������������������ 12
5-1 Pin Layout.......................................................................................... 12
5-2 Pin Connector Interface Description .............................................. 12
Digital Video �������������������������������������������������������� 15
6-1 Digital Video..................................................................................... 15
6-1-1 LVCMOS................................................................................15
6-1-2 LVDS ..................................................................................... 16
6-1-3 BT.656 ...................................................................................17
6-1-4 CDS_2....................................................................................17
6-1-5 BT.1120 ..................................................................................18
Protocols������������������������������������������������������������ 19
7-1 MIPI Protocol ..................................................................................... 19
User Expansion Boards ����������������������������������������������20
Maintenance �������������������������������������������������������� 21
9-1 Cleaning the Germanium Lens.......................................................... 21
9-2 Disinfecting the Camera Surface.................................................... 21
9-3 Device Calibration............................................................................ 21
9-4 Storage ............................................................................................. 21
About Thermal Camera����������������������������������������������22
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Contents
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GC-76 GAS LEAK DETECTION CORE USER MANUAL
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1. Disclaimers
1-1 Terms and Conditions
Warranty Terms and Condition of Sale are made available online at:
https://infraredcameras.com/support/terms-and-conditions-of-sale/
1-2 U.S. Government Regulations
This product may be subject to U.S. Export Regulations. Please send any
inquiries to [email protected]
1-3 Copyright
© 2022, Infrared Cameras, Inc. All rights reserved worldwide. No parts of the
software including source code may be reproduced, transmitted, transcribed
or translated into any language or computer language in any form or by any
means, electronic, magnetic, optical, manual or otherwise, without the prior
written permission of Infrared Cameras, Inc.
The documentation must not, in whole or part, be copied, photocopied,
reproduced, translated or transmitted to any electronic medium or machine
readable form without prior consent, in writing, from Infrared Cameras, Inc.
Names and marks appearing on the products herein are either registered
trademarks or trademarks of Infrared Cameras, Inc. and/or its subsidiaries. All
other trademarks, trade names or company names referenced herein are used
for identification only and are the property of their respective owners.
1-4 Quality Assurance
Infrared Cameras, Inc. is committed to a policy of continuous development;
therefore we reserve the right to make changes and improvements on any of
the products without prior notice.
1-5 Customer Help
For customer help, visit:
https://infraredcameras.com/support/
E-mail:
suppor[email protected]

GC-76 GAS LEAK DETECTION CORE USER MANUAL
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2. User Notice
Annual calibration of any thermal camera is recommended. Contact customer
service to schedule maintenance.
2-2 Accuracy of Thermal Devices
For very accurate results, ICI recommends waiting a minimum of 5 minutes after
starting a thermal camera before measuring a temperature.
2-1 Calibration of Thermal Devices
2-4 Disposal of Electronic Waste

substances that may be hazardous and present a risk to human health and

handled correctly.
Equipment marked with the below crossed-out wheeled bin is electrical and
electronic equipment. The crossed-out wheeled bin symbol indicates that
waste electrical and electronic equipment should not be discarded together
with unseparated household waste, but must be collected separately.
All local authorities have established collection schemes under which residents
can dispose of equipment at a recycling center or other collection points, or
WEEE will be collected directly from households. More detailed information is
available from the administration of the relevant local authority. Always dispose
of waste in accordance with local, state, and federal regulations.
2-3 Cybersecurity
After the products are connected to the Internet, they may face risks including
but not limited to network attacks, hacker attacks, virus infections, etc. The
company will not be responsible for the abnormal operation of the products and
any loss or liability caused therefrom shall be at your own risk.

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2-6 Manual Update
The user manual will be updated from time to time. To access the latest manuals,
translations of manuals, and notifications, go to:
https://thermalcamera.com/product-resources/
The manufacturer reserves the right to alter the specifications of the product
without prior notification. The manufacturer allows himself the right to modify
without any preliminary opinion the technical specifications of the product.
2-8 Authoritative Versions
The authoritative version of this publication is English. In the event of
divergences due to translation errors, the English text has precedence.
Any late changes are first implemented in English. Other languages may or may
not be available.
2-5 Intended Use

and locate gas leaks - without system downtime. Temperature measurement

for petroleum, chemical, natural gas, and electric power applications. Monitoring
for gas leaks assists in daily equipment maintenance, accident prevention, and

handheld devices.
Environment of use: UAV/UAS integrations, handheld and head-mounted
equipment, multi-spectral systems, industrial monitoring, security applications,
and other data collection-based inspections among others.
You agree that this product is for civilian use only, and shall not use applications
that may infringe the rights of third parties, medical and safety devices or other
applications where product failure may lead to life-threatening or personal injury,
as well as weapons of mass destruction, chemical and biological weapons,
nuclear explosions, unsafe use of nuclear energy, dangerous or humanitarian
purposes. Any loss or liability caused therefrom shall be at the your own risk.
2-7 Scope of Application
Thermal Camera issues generic manuals that cover several cameras within a
model line.
This means that this manual may contain descriptions and explanations that do
not apply to your particular camera model. This manual may contain technical
inaccuracies or typographical errors.

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2-9 Training
To read about infrared training, visit:
https://infraredtraininginstitute.com/

GC-76 GAS LEAK DETECTION CORE USER MANUAL
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3. Safety Information
• 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 must be installed by qualified service personnel or system
installation personnel.
• Do not disassemble or modify the thermal device. If the device operates
abnormally, please contact the supplier and do not dismantle the device
on your own.
• Do not point the imager (with or without the lens cover) at intensive energy
sources, e.g. devices that emit laser radiation, or the sun. This can affect
the accuracy of the camera, and cause damage to the detector.
• 

• Do not cut, alter, or place heavy items on the device. These actions may
cause an electric short leading to fire or electrocution.
• Prior to start of the device, make sure that the power supply is properly
connected. If the power supply is connected incorrectly, the device may
be damaged.
• Do not put holes in the device with objects. Damage to the device may occur.
• Do not hit the device with a hammer or apply strong impacts or electric
shocks to it. Damage to the device may occur.
• Do not put the device in or near a fire, stove or other high-temperature
locations. Damage or ignition of the device may occur.
• Do not put the device in direct sunlight or other high-temperature locations.
Damage or ignition of the device may occur.
• Do not get water or salt water on the device or permit the device to get
wet. Damage to the device may occur.
• Remove any water or moisture on the device before you install it. Damage
to the device may occur.
• If there are fluids on the device and the fluid gets into the eyes, do not rub
the eyes. Flush well with water and immediately get medical care.
• Always dispose of device in accordance with local, state and federal
regulations.
• Do not use the device if, when used, there is a smoke emitted from the
device, the device feels excessively hot, changes color, changes shape, or
is in an unusual condition. Speak with a sales office if one or more of these
problems occurs.
• Do not use liquids to clean the electronics.
• Clean the case with a damp cloth and a weak soap solution. Do not use
abrasives, isopropyl alcohol, or solvents to clean the case or lens/screen.

GC-76 GAS LEAK DETECTION CORE USER MANUAL
9
• Be careful when cleaning the infrared lens. Do not clean the infrared lens
too vigorously. This can damage the anti-reflective coating.
• Avoid condensation. Taking the device from cold to hot will cause
condensation in the thermal imager. To protect the device, power on the
device and wait until it becomes warm enough for the condensation to
evaporate.
• Keep device out of reach of children.
• This product is a precise electronic device that must be handled with care
during use, storage, and transportation to prevent dangerous actions such
as the device being hit by external force, or falling from heights.
• Transport: During transportation and storage the original packaging box
must be used.
• Storage: If you do not use the imager for a long period of time, put the
device in a cool and dry environment.
• It is recommended to calibrate the device(s) annually.

GC-76 GAS LEAK DETECTION CORE USER MANUAL
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SPECIFICATIONS SUBJECT TO CHANGE WITHOUT NOTICE
4. Technical Specifications
 Methane, Nitrous Oxide, Sulfur Dioxide, Phenol,

R125, R134A, R417A, R422A, R508A,
 640 x 512
Accuracy ± 3°C (± 5.4°F) or ± 3%
 -20°C to 120°C (-4°F to 248°F)
 -20°C to 50°C (-4°F to 122°F)
 -45°C to 85°C (49°F to 185°F)
Detector Type UFPA (VOx)
 
 
 
 5% to 95%, non-condensing
 > 99 %
 80 G
 6.06 G
 26 mm x 26 mm x 22m (L x W x D ± 0.5 mm)
1
 21 g (0.74 oz)
 4V ~ 6V DC, < 1.3W 2
 Over-voltage; under-voltage; reverse polarity
Interface RS-232; UART (3.3 V)
 Call for options
 Analog: 1 channel PAL or NTSC 3
Digital: BT.656; 8-bit or 14-bit LVCMOS; LVDS 4
  5
 White hot or black hot
 Digital enhancement; Imaging denoising 5
 R5
 Adjustable
Zoom 5
5


GC-76 GAS LEAK DETECTION CORE USER MANUAL
11
SPECIFICATIONS SUBJECT TO CHANGE WITHOUT NOTICE
Note:
1. Dimensions without expansion board.
2. Wattage is based on tests without extension boards. Typical working voltage is 4V DC.

3. 
4. 
5. Digital video does not have the zoom and video mirror except for BT.656.

GC-76 GAS LEAK DETECTION CORE USER MANUAL
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5-1 Pin Layout
Pin 69
Pin 2
Pin 1
Pin 70


BT.656 digital video interfaces, 14-bit or 8-bit LVCMOS digital video interfaces,


thermal camera and user expansion boards.
5. Structure
5-2 Pin Connector Interface Description
  Type Description
1, 2, 3, 4, Power Supply Power 1
12, 19-22, 42 -- -- Not available
15 RS-232_RX Input 2
16 RS-232_TX Output
9, 11 VGND Power Ground of analog video 3
10 Video Output Analog video
CONTINUES
PLEASE READ AND UNDERSTAND THE TABLES BEFORE SWITCHING THE UNIT ON.

GC-76 GAS LEAK DETECTION CORE USER MANUAL
13
  Type Description
25 DV1
Output
16-bit or
14-bit or 8-bit
LVCMOS
Digital
video(3.3V)
Data
BT.656
BT.1120
(3.3V)
Data
26 DV0 Data LSB Data LSB
(BT.656)
27 DV3 Data Data
28 DV2 Data Data
29 DV5 Data Data
30 DV4 Data Data
31 DV7 Data MSB

Data MSB
(BT.656)
32 DV6 Data Data
33 DV9 Data --
34 DV8 Data --
35 DV11 Data --
36 DV10 Data --
37 DV13 Data MSB

--
38 DV12 Data --
24 DV14 Data Data
23 DV15 Data MSB

Data MSB
(BT.1120)
39 Line_Valid Line valid
signal
Line valid
signal
40 Frame_Valid Frame valid
signal
Frame valid
signal
41 Clock Clock signal Clock Signal
45 UART_RX Input/
Output 2
46 UART_RX
48 KEY1
Input Button interface

M (menu)
50 KEY2 + (plus)
52 KEY3 - (minus)
54 KEY4 C (correction)
CONTINUES
CONTINUED FROM PREVIOUS TABLE
PLEASE READ AND UNDERSTAND THE TABLES BEFORE SWITCHING THE UNIT ON.

GC-76 GAS LEAK DETECTION CORE USER MANUAL
14
CONTINUED FROM PREVIOUS TABLE
Note:
1. Typical value of power supply is 4 V DC; here refers to the voltage value of the thermal camera

mVp-p.
2. All the TX and RX of serial communication interfaces refer to the thermal camera’s sending
and receiving.
3. GND and VGND are shorted internally.
PLEASE READ AND UNDERSTAND THE TABLES BEFORE SWITCHING THE UNIT ON.
  Type Description
47 LVDS_CLK+
Output 

Clock Signal
49 LVDS_CLK-
51 LVDS_
DATA0+ Data
53 LVDS_DATA0-
57 LVDS_DATA1+ Data
58 LVDS_DATA1-
61 LVDS_
DATA2+ Data
63 LVDS_DATA2-
65 LVDS_
DATA3+ Data
67 LVDS_DATA3-
58 IO0
Input/
Output
Reserved
60 IO1 Reserved
62 IO2 Reserved
64 IO3 Reserved
66 IO4 Reserved
68 IO5 Reserved
5, 6, 7, 8, 13,
14, 17, 18, 43,
44, 55, 56,
69, 70
GND Power Ground of power supply 3

GC-76 GAS LEAK DETECTION CORE USER MANUAL
15

LVCMOS digital video can be enabled/disabled with control commands. In the


data. When choosing to use DRC data, the digital zoom and temperature display
functions are not available.
LVCMOS digital video includes 1 Clock signal (Clock), 1 line valid (Line_Valid)

Pixel data bits are divided into 8-bit and 14-bit. When ORG or TEMP data is
            
DV13 is the MSB. When the user selects DRC, the data bits are 8-bits, namely


 
GC-76 
Note:
1. Clock rising edge sampling is recommended for DV.
2. The high level is valid for Line_Valid and Frame_Valid.
3. After Line_Valid is valid it lasts for n Clock, which corresponds to the data of the first column
to the last column of the row in turn.
6-1 Digital Video
6. Digital Video

GC-76 GAS LEAK DETECTION CORE USER MANUAL
16

           

analyzed by the domestic mainstream video coding/decoding chip.
LVDS digital video can be enabled/disabled by control commands. When it is
enabled, the output of ORG data, NUC data, DRC data, DNS data, and TEMP
data can be selected.
When choosing to use DRC data, the digital zoom and temperature display
functions are not available.

 
GC-76 

H0   H3 H4 H5  
 3FFF 0000 0000 2AC0 3FFF 0000 0000 2D80
 3FFF 0000 0000 2000 3FFF 0000 0000 2740
PLEASE READ AND UNDERSTAND THE TABLES BEFORE SWITCHING THE UNIT ON.

GC-76 GAS LEAK DETECTION CORE USER MANUAL
17



BT.656 digital video supports all functions including brightness/contrast
adjustment, polarity selection, palette selection, reticle control, digital zoom, and
image flipping functions.
It only supports output DRC data.
CDS_2 digital video contains 1 Clock signal (Clock), 1 frame valid signal (Vsync),

The video data consists of two parts, the first half of each row of data is divided
into an image, which conforms to the YUV422 format. The high 8-bits is the
brightness component, the low 8-bits is the chroma component, and the image
supports pseudo-color mapping. The second half of each row is divided into
temperature data. The actual significant bit is 14-bits, and the higher two bits
complement 0.

 
 
Note:
1. The output image data format is YUV, the high 8-bit is Y component, the low 8-bit is UV
component.
2. “T” stands for temperature data (effective data bits are 14-bits lower, two bits higher

3. External synchronization signal mode is adopted. “Vsync” represents frame synchronization

4. 


PLEASE READ AND UNDERSTAND THE TABLES BEFORE SWITCHING THE UNIT ON.

GC-76 GAS LEAK DETECTION CORE USER MANUAL
18
PLEASE READ AND UNDERSTAND THE TABLES BEFORE SWITCHING THE UNIT ON.

BT.1120 digital video outputs signals line by line. It includes clock signals (Clock),
frame valid signal, line valid signal
When BT.1120 digital video is selected, the digital zoom and temperature display
functions are not available.

GC-76 GAS LEAK DETECTION CORE USER MANUAL
19
7. Protocols
7-1 MIPI Protocol

    

    

The clock signal enters the high-speed mode at the beginning of each frame and
exits at the end of the frame. The inter-frame is in the low-power mode (the data
and clock lines are both at 1.2V high level). The CLK frequency of the thermal

              
temperature measurement as an example, the core is set to CDS_2 digital video,
      




GC-76 GAS LEAK DETECTION CORE USER MANUAL
20
There are different user expansion boards and accessories. The boards support
multiple interfaces and serve many functions.
  Interface 
Call for
information
• USB power supply, typical
5V DC
• USB communication
• USB UVC Video
USB Type C
Call for
information
• 
typical 12V DC
• 
• BT.656 digital video
• Analog video
• 4 Keys
• 
• 

connector
• Molex 20 pin
• 
connector
Call for
information
• 
typical 12V DC
• RS232, RS422
• LVDS digital video
• Analog video
• 4 keys

Call for
information
• 
typical 12V DC
• RS232, RS422
• Cameralink digital video
• Analog video
• 4 keys

Call for
information
• 
typical 12V DC
• RS232, RS422
• MIPI digital video
• Analog video
• 4 keys

8. User Expansion Boards