HAC-D3A51-VF - Surveillance Camera Dahua Technology - Free user manual and instructions
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| Product Type | Surveillance Camera |
| Brand | Dahua Technology |
| Model | HAC-D3A51-VF |
| Camera Type | Analog HD bullet camera |
| Image Sensor | 1/2.7" 3MP CMOS |
| Max Resolution | 2304 × 1296 pixels |
| Lens | Varifocal, 2.8-12mm |
| Minimum Illumination | 0.01 Lux (color), 0 Lux with IR |
| IR Distance | Up to 40m |
| Video Output | 1 × BNC (HD-CVI / CVBS) |
| Day/Night Switching | Auto (ICR) |
| Weatherproof Rating | IP67 |
| Operating Temperature | -30°C to +60°C |
| Power Supply | DC 12V ±10% |
| Power Consumption | Max 10W |
| Dimensions (W x H x L) | 80mm x 80mm x 210mm |
| Weight | 450g |
| Housing Material | Aluminum alloy |
| Included Mount | Adjustable bracket |
| Menu Language | English, French, etc. (OSD) |
| Advanced Functions | WDR, DNR, Motion Detection, Privacy Mask |
| Security Features | Password protection on menu |
| Cleaning & Maintenance | Clean lens with soft, dry cloth; inspect cables periodically |
| Spare Parts & Repairability | Lens, housing, and PCB available through service centers |
Frequently Asked Questions - HAC-D3A51-VF Dahua Technology
What is the difference between HD-CVI and CVBS output on this camera?
The HAC-D3A51-VF supports both HD-CVI and CVBS via the BNC connection. HD-CVI provides high-definition video up to 3MP, while CVBS is standard analog for older DVRs. When connected to an HD-CVI DVR, select CVI mode for optimal image quality.
Can I use this camera with an existing analog DVR?
Yes, it can operate in CVBS mode with a traditional DVR, but you will only get standard definition. To enjoy 3MP resolution, you need an HD-CVI DVR.
How do I adjust the varifocal lens?
The lens has two rings: one for zoom (focal length) and one for focus. Loosen the screws, adjust focal length and focus while viewing the monitor, then tighten the screws to lock.
Is this camera suitable for outdoor use?
Yes, it has an IP67-rated housing that is dust-tight and protected against powerful water jets. Operating temperature ranges from -30°C to +60°C, so it can handle most climates.
What power supply is required?
The camera runs on 12V DC (typically regulated power adapter). Ensure the adapter can supply at least 1A (10W) to avoid instability. Do NOT use AC power or higher voltage.
How far can the IR LEDs see at night?
In total darkness, the built-in IR LEDs provide visibility up to 40 meters (depending on scene reflectivity). For best results, keep the lens clean and avoid obstacles close to the camera.
How do I access the OSD menu to change settings?
Connect to a DVR monitor, use the OSD joystick on the camera's pigtail cable or DVR menu interface. The menu lets you adjust WDR, DNR, exposure, white balance and more. For security, it is password-protected.
What maintenance is required?
Clean the housing and lens periodically with a soft, lint-free cloth and mild detergent if needed. Check cable connections and seals to ensure waterproofing remains intact. Do not open the camera unnecessarily.
Can the camera be mounted on a ceiling or wall?
Yes, it includes an adjustable mounting bracket that supports wall or ceiling installation. Use the template to mark holes, drill, and fix with appropriate screws (not included) depending on the surface.
What is WDR and how does it help?
WDR (Wide Dynamic Range) helps capture details in scenes with both bright and dark areas, like entrances with strong backlight. It balances exposure to produce a clearer image than standard modes.
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USER MANUAL HAC-D3A51-VF Dahua Technology
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Product information
Brand : Dahua Technology
Model : HAC-D3A51-VF
Category : Surveillance Camera