_ o SEW ERIN Technologies for leak detection. Glass-fibre Probe System Because electrical current cannot flow through non-metallic pipes, additional equipment must be used to locate such pipes. Glass-fibre probes and mini pig transmitters are used for this purpose. The glass-fibre probe, containing a continuous length of copper, is inserted into the pipe section to be located, connected to the signal generator and traced using the FERROPHON®. With this method it is possible to follow the route of the pipe. To detect the end-point of the glass-fibre rod a mini pig transmitter can be screwed onto the probe tip. This small, battery-driven transmitter generates an electro-magnetic alternating field which can be located with a pipe locator. Even the depth of a non-metallic pipe can be determined. The mini pig transmitter may also be used without the glass-fibre rod. This opens various operating modes in combination with pipeline cleaning pigs, sewer inspection cameras, etc.! • At water authorities Detection of operating service pipes (with sluice) and main conducts • At gas suppliers Detection of pipes out of operation • In waste water networks Sewers’ routing, empty pipes, drainage pipes

Mini pig transmitter „A“, water-proof (16 bar) pig transmitter for the exact determination of the end-point of the glass-fibre rod, detectable up to approx. 5 m depth. Frequency „A“ resp. 42 kHz, approx. 10 h operating time. This mini pig transmitter can only be used in combination with the FERROPHON® system (receivers EL, ELH, AF 100). Can be screwed-on to all glass-fibre rods. Length approx. 110 mm, diameter 15 mm. Sluices for glass-fibre rod GFS (6 mm) or GSK (4.5 mm), to insert the glass-fibre rods into pipes under pressure (e. g. house service lines). Terminal part of spring screw-on, especially...