How to Properly Use a Manhole Inspection Camera: A Step-by-Step Guide
Inspecting manholes and other confined spaces is an essential task to ensure the proper functioning of underground infrastructure. However, this operation can pose risks to personnel and become costly if poorly planned. Thanks to manhole inspection cameras like those developed by RinnoVision, it is now possible to carry out fast, safe, and precise inspections—without needing to send someone down into the space.
But how can you properly use this type of camera to get optimal results? Here is a step-by-step guide to help you get the most out of your inspection camera.
Understand How the Camera Works
Before starting a manhole inspection, it’s crucial to have a clear understanding of the equipment you’ll be using. RinnoVision’s inspection cameras are designed to be easy to handle while still delivering professional-grade performance. They feature high-resolution sensors capable of filming in 4K, powerful LED lighting systems that can illuminate even the deepest manholes, and optical or digital zoom to capture even the smallest details.
The camera is mounted on a telescopic or rigid pole, allowing for stable vertical insertion. It is connected to a tablet or control screen that lets you view real-time footage. Wi-Fi or 4G connectivity enables instant data transfer to a control center or other team members. Mastering all these features is the foundation of a successful inspection.
Prepare the Equipment Before Inspection
Good preparation helps prevent unpleasant surprises in the field. Before heading out for an inspection mission, make sure all your gear is ready. Check that the batteries are fully charged, the camera has sufficient storage space, and that the LED lights are functioning properly.
It’s also a good idea to clean the camera lens with a microfiber cloth to avoid stains or blurriness in your images. Test the connection between the camera and the control tablet, and make sure the software or app is up to date. The entire RinnoVision system has been designed to be intuitive, but a quick check ensures a smooth and effective operation on-site.
Analyze the Site Before Inspection
Every manhole has different characteristics: depth, diameter, presence of water or gas, internal structure, etc. A quick visual inspection of the immediate environment is therefore essential. Identify potential risks such as traffic, slippery surfaces, or the presence of hazardous substances.
Be sure to wear the required personal protective equipment (helmet, gloves, reflective vest, etc.) and secure the area with cones or barriers. One of the major advantages of RinnoVision cameras is the drastic reduction of risk: no one needs to physically descend into the manhole, minimizing accidents and complying with health and safety regulations.
Set Up and Position the Camera
Once the site is secured, set up the tripod or mount provided with the camera directly above the manhole. Carefully extend the telescopic or rigid pole to lower the camera to the center of the manhole. The lens should be perfectly centered and aimed downward. Then, activate the system using the control screen or tablet.
Adjust the lighting, focus, and zoom settings to get a clear and well-framed image. RinnoVision’s RV-MAX 360 and RV-PRO 360 cameras also allow for 360-degree image rotation, making full inspections easier without having to reposition the camera.
Capture Clear Images and Videos
When the camera is correctly positioned, start capturing images or recording a video. Use the zoom features to examine fine details: wall cracks, debris, roots, corrosion, and more. The camera’s built-in stabilization system ensures sharp images even with slight movement.
Take multiple photos of important elements at various zoom levels. Integrated software tools allow you to annotate anomalies in real-time, which greatly facilitates the drafting of reports later. It is recommended to always record a complete video of the inspection, even if still images are taken separately, in order to maintain a comprehensive record of the session.
Analyze the Collected Data
Analyzing the recorded images is a key part of the inspection process. With RinnoVision’s digital tools, you can replay videos, zoom in on critical areas, add annotations, and automatically generate professional reports.
The system also allows you to export data in standard formats (PDF, MP4, JPG) to share with colleagues, municipal authorities, or clients. This centralized information streamlines fast, informed decision-making. By comparing current inspections with past ones, you can track the evolution of structural issues and plan maintenance more effectively.
Clean and Maintain the Camera
Like any piece of high-tech equipment, inspection cameras require regular maintenance. After each use, clean the lens carefully with a soft cloth and avoid using abrasive products. Check that no cables are damaged, that seals are watertight, and that all mechanical parts (pole, mount, handle) are working properly.
Recharge the batteries and store all equipment in its protective transport case. Consistent maintenance ensures your device’s longevity and helps you avoid unexpected repair or replacement costs.
Train Your Team to Use It
Even the best equipment delivers results only when operated by well-trained personnel. It is highly recommended to train your technicians and inspectors on how to use RinnoVision cameras. This includes not just the physical operation of the tool, but also how to interpret images, use the analysis software, and follow safety guidelines.
RinnoVision also offers tailored training—both in-person and remote—along with video tutorials and detailed user guides to help your team get up to speed. A well-trained team means faster inspections, more accurate diagnostics, and more professional reports.