SeCorr® C 200
The SeCorr® C 200 is a state-of-the-art, portable high-performance correlator, which enables leaks in underground pipelines to be located reliably, quickly, and accurately to allow excavation to begin. Its user interface is clearly and logically laid out. There are many extra functions available for complex location scenarios.
The principle of correlation
Location with a correlator involves simultaneously measuring the noises caused by a leak on the pipeline at two fittings (e.g. on slide gates or hydrants). Highly sensitive microphones record the noises on the fittings, radio transmitters transmit the signals to a receiver – the correlator – which determines the run time difference, i.e. the time lag between the noises reaching the two measuring points. The correlator then calculates the exact leak position based on the entered pipe length and the pipe material and diameter.
Comparison of correlative and acoustic location techniques
The correlation method is essentially different from the conventional method of acoustic water leak detection: instead of systematically checking the fittings (relocating) and then pinpointing with ground microphones at one position, it involves taking two simultaneous measurements at two fittings. With acoustic location, the user compares and evaluates the leak noises. This technique can be used in many network structures, however, successful location is dependent upon human hearing and, to a large extent, the experience of the user. Leak detection by correlation, on the other hand, provides accurate measurement values – regardless of the hearing of the user and largely irrespective of external perturbations.
Flexible: The SeCorr® C 200 is recommended for all users undertaking professional leak detection because it can handle any everyday location scenario. It can easily measure different pipe sections, pipe materials, diameters, and pipe lengths.
Intelligent: The sophisticated firmware of the SeCorr® C 200 means that the measurement sequence is almost fully automatic. Once the pipeline data has been entered and the measurement started, all other steps are performed without the intervention of the operator. The measured noises are constantly analyzed in the background and the optimal filter settings are selected.
Automatic filters, results-oriented measurement display
The SeCorr® C 200 independently optimizes the measuring results by automatically selecting appropriate filters – without the user having to intervene. However, filters can also be set manually.
One special feature of the correlator is its results-oriented, user-friendly on-screen display of the measuring results. Concrete information about the position of the leak is highlighted, instead of having to interpret complex curves. The quality of the calculations shown in the display provides the user with constant information about how reliable the measurement is.
Thanks to the results-oriented view, the user can immediately implement further steps, e.g. confirm the location by acoustic means.
Strong protection for rugged working environments
The sturdy SeCorr® C 200 is certified to IP67 and therefore ideal for use in extreme ambient conditions. Dirt, dust, and moisture will not affect its functionality. The powerful integrated lithium-ion rechargeable battery means the receiver can be used all day long without interruption.
User-friendly thanks to a large touchscreen
The SeCorr® C 200 has a large 5.7 inch, high-resolution VGA display. All of the information is clearly laid out and displayed in a results-oriented way. The display is easy to read, even in the brightest of sunshine. If necessary, the touchscreen can be conveniently and reliably operated with gloves.
Ergonomic, effortless work
The SeCorr® C 200 is lightweight and ergonomic. Its strong triangular belt enables it to be carried effortlessly. The compact, symmetrical housing means that it can be comfortably operated by right and left handers alike. Wireless communication between the receiver and headphones means that the user can work without annoying cables.
RT 200 radio transmitter with UM 200 microphone in use
Measurement result shown on SeCorr® C 200 display
Measurement result on two pipe sections
Filter dialog with filters automatically set
SeCorr® system –
system components and accessories
The RT 200 radio transmitters feature 500 mW high- performance transmission paths. They allow noiseless data transmission, even on measuring sections covering hundreds of metres. The RT 200 radio transmitters come on as soon as you plug in the microphone cable. Three different bandpasses mean that the noises can be fully processed before radio transmission. This means that the RT 200 radio transmitters can be adjusted to a wide range of pipe materials and pipe sections. The microphone’s torch function can also be activated via the membrane keypad.
The UM 200 microphone for picking up structure-borne noise features a very wide frequency response and is extremely sensitive in the low frequency range. This makes the UM 200 perfect for recording even the quietest of noises, particularly on plastic pipes. The cable is extremely sturdy and can withstand heavy mechanical loads. This guarantees a long service life in daily use, even under the harshest of conditions. A high-quality plug and an extremely strong contact adapter make the UM 200 microphone a professional all-rounder.
The sturdy system case has space to safely hold all the system components. The C 200 receiver, two RT 200 radio transmitters and two UM 200 microphones as well as optional accessories can all be stored in the case with optimal protection for transit. The system components can be charged in the closed case in the workshop or the measuring vehicle.
The HY 200 hydrophones make the SeCorr® an excellent measuring system for use along large transmission pipelines and long distances between the individual attachment points. Because they are installed directly in the water column, hydrophones do not use the structure-borne noise that travels along the pipe, but rather the noise transmitted by the water in the pipe. The HY 200 hydrophones are extremely sensitive in the very low frequency range, far below audible sounds. In this way they perfectly complement the SeCorr® system when used in plastic pipe networks. The set comes in a dedicated plastic case, keeping all the components such as hydrophones, adapters for installing in underground hydrants and connecting cables, close to hand.