Gemini GT-CH21C3-28VFW User manual
User Manual
Code: GT-CH21C3-28VFW
AHD, HD-CVI, HD-TVI, PAL CAMERA GT-CH21C3-28VFW - 1080p 2.8 ... 12 mm GEMINI
TECHNOLOGY
DELTA-OPTI Monika Matysiak; https://www.delta.poznan.pl
POL; 60-713 Poznań; Graniczna 10
e-mail: [email protected]; tel: +(48) 61 864 69 60
2022-05-09 GT-CH21C3-28VFW 1/6
Warning!
Please read the user manual included in this work as it contains important information related with safety of installation and use of
the device.
Only persons who read the user manual may use the device.
The user manual must be kept because it may be required in the future. The device is to be used exclusively for purposes specified
in this user manual.
The device must be unpacked prior to starting-up. After removing the packaging make sure the device is in working order.
If the product has defects, it should not be used until it is repaired.
The product is intended for use at home and commercial use and may not be used for other than intended use.
The manufacturer is not liable for damages resulting from not adhering to the rules contained in the user manual, therefore, we
recommend to follow the aforementioned safety rules for operation and maintenance of the device. In this way you will ensure
yourself safety and avoid causing damage to the device.
The manufacturer and the supplier are not liable for losses or damages arising out of the product, including financial or intangible
losses, loss of profits, income, data, pleasure from use of the product or other products related with it - indirect, incidental or
consequential loss or damage. The above provisions apply whether the loss or damage concerns:
1. Deterioration of quality or the lack of operation of the products or products related with it due to damage as well as the lack of
access to the product when it is undergoing repair, which results in stoppage the loss of user's time or a break in business activity;
2. Improper results of operation of the product or products related with it;
3. It applies to losses and damages according to any legal category, including negligence and other losses, termination of a
contract, expressed or implied guarantee and strict liability (even if the manufacturer or the supplier was notified about the
possibility of occurrence of such damages).
Safety measures:
Particular attention at designing was directed to quality standards of the device where ensuring safety of operation is the most
important factor.
The device must be secured against contact with caustic, staining and viscous fluids.
The device was designed in such a way that it restarts operation when power supply is restored after a break.
Attention! We recommend using protections to further protect the device from possible overvoltages in installations.
Surge protectors are effective protection against accidental pass to the device voltages higher than the rated. Damages
caused by pass the voltages higher than specified in manual, are not under warranty.
Turn off the device before transporting it.
Prior to connecting the device to a power source check whether the supplied voltage is consistent with rated voltage specified in
the user manual.
Proper product disposal:
A marking of a crossed out waste bin indicates that the product may not be disposed together with other household waste in the
entire EU. To avoid possible damage to the natural environment of health due to uncontrolled waste disposal, therefore, it should be
handed over for recycling, propagating in this way sustainable use of natural resources.
To return a worn-out product, use a collection and disposal system of this type of equipment or contact a seller from whom it was
purchased. He will then be recycled in an environmentally-friendly way.
User Manual
Code: GT-CH21C3-28VFW
AHD, HD-CVI, HD-TVI, PAL CAMERA GT-CH21C3-28VFW - 1080p 2.8 ... 12 mm GEMINI
TECHNOLOGY
DELTA-OPTI Monika Matysiak; https://www.delta.poznan.pl
POL; 60-713 Poznań; Graniczna 10
e-mail: [email protected]; tel: +(48) 61 864 69 60
2022-05-09 GT-CH21C3-28VFW 2/6
Megapixel camera with 1/2.9" Sony CMOS sensor and AHD
/ HD-CVI / HD-TVI / PAL.
The AHD / HD-CVI / HD-TVI interface allows to
transmission of analog video signal via coaxial cable in
1080p resolution. It enables the transmission of HD
resolution images for even 500 m distance with keeping the
low costs of the installation. During transmission there are
no delays and is maintained the original, high quality
image.
Setting the camera in PAL mode allows to obtain an image
in 960H resolution. The appropriate signal format selection
is done by tilting and holding the joystick for 5 s without
entering to the OSD menu. Changing the signal to the
NTSC in the camera causes loss of image in connected
AHD/HD-CVI/HD-TVI recorder.
Standard: AHD, HD-CVI, HD-TVI, PAL
Sensor: 1/2.9 " Sony CMOS IMX323
Digital Image Processor: Nextchip NVP2441H
Matrix size: 2.4 Mpx
Resolution: 1920 x 1080 - 1080p, AHD-H, HD-CVI, HD-TVI ,
960 x 576 - 960H, PAL
Range of IR illumination: 30 m
IR illuminator power adjustment: Automatic
Lens: 2.8 ... 12 mm
View angle: • 82 ° ... 24 ° (manufacturer data)
• 94 ° ... 32 ° (our tests result)
S/N ratio: > 50 dB
Video output: 1 Vpp 75 Ω, AHD / HD-CVI / HD-TVI / PAL - Via OSD, selectable by switch
Main features:
• Sense-UP - (Slow Shutter) - Increase the sensor sensitivity max. x 30
• D-WDR - Wide Dynamic Range
• 2D-DNR / 3D-DNR - Digital Noise Reduction
• F-DNR (Defog) - Reduction of image noise caused by precipitation
• ICR - Movable InfraRed filter
• Motion Detection - max. 4 zones
• Privacy zones - max. 4
• Day/Night mode (color/b&w/auto)
• WB - White Balance (ATW/AWB/manual/indoor/outdoor)
• BLC - configurable Back Light Compensation
• HSBLC - High Light Compensation (spot)
• Mirror - Mirror image
• image "freeze"
• Sharpness - sharper image outlines
• Monitor type correction - LCD/CRT
User Manual
Code: GT-CH21C3-28VFW
AHD, HD-CVI, HD-TVI, PAL CAMERA GT-CH21C3-28VFW - 1080p 2.8 ... 12 mm GEMINI
TECHNOLOGY
DELTA-OPTI Monika Matysiak; https://www.delta.poznan.pl
POL; 60-713 Poznań; Graniczna 10
e-mail: [email protected]; tel: +(48) 61 864 69 60
2022-05-09 GT-CH21C3-28VFW 3/6
OSD menu:
Power supply: 12 V DC / 310 mA
Power consumption: ≤ 3.7 W
Housing: Compact - Metal
Color: White
"Index of Protection": IP67
Operation temp: -20 °C ... 60 °C
Weight: 0.49 kg
Dimensions: 211 x 117 x 77 mm
Supported languages: English, Chinese Traditional, Chinese Simplified, French, Spanish, Dutch, German,
Polish, Portuguese, Russian, Turkish, Italian
Manufacturer / Brand: GEMINI TECHNOLOGY
Guarantee: 2 years
Front view:
Side view:
On the bottom of the camera there are two lens adjustment knobs (zoom, focus):
User Manual
Code: GT-CH21C3-28VFW
AHD, HD-CVI, HD-TVI, PAL CAMERA GT-CH21C3-28VFW - 1080p 2.8 ... 12 mm GEMINI
TECHNOLOGY
DELTA-OPTI Monika Matysiak; https://www.delta.poznan.pl
POL; 60-713 Poznań; Graniczna 10
e-mail: [email protected]; tel: +(48) 61 864 69 60
2022-05-09 GT-CH21C3-28VFW 4/6
The appropriate signal format selection is done by tilting and holding the joystick for 5 s without entering to the OSD menu. Changing the signal to
the NTSC in the camera causes loss of image in connected AHD/HD-CVI/HD-TVI recorder:
Mounting side view:
User Manual
Code: GT-CH21C3-28VFW
AHD, HD-CVI, HD-TVI, PAL CAMERA GT-CH21C3-28VFW - 1080p 2.8 ... 12 mm GEMINI
TECHNOLOGY
DELTA-OPTI Monika Matysiak; https://www.delta.poznan.pl
POL; 60-713 Poznań; Graniczna 10
e-mail: [email protected]; tel: +(48) 61 864 69 60
2022-05-09 GT-CH21C3-28VFW 5/6
In the kit:
Package:
User Manual
Code: GT-CH21C3-28VFW
AHD, HD-CVI, HD-TVI, PAL CAMERA GT-CH21C3-28VFW - 1080p 2.8 ... 12 mm GEMINI
TECHNOLOGY
DELTA-OPTI Monika Matysiak; https://www.delta.poznan.pl
POL; 60-713 Poznań; Graniczna 10
e-mail: [email protected]; tel: +(48) 61 864 69 60
2022-05-09 GT-CH21C3-28VFW 6/6
