ONLINE ELECTRONICS LTD
3015_5001_A01
Page 5 of 17
1.
GENERAL DESCRIPTION
The 3015X Electromagnetic transmitter is an ATEX certified EM transmitter used for pig
tracking and location functions. The transmitter operates effectively in buried pipelines,
pipelines carrying gas and in pipeline bundles where acoustic transmitters are either less
effective or ineffective.
The transmitter emits a 21.8Hz signal and an inherent EM null spot is detectable when the EM
receiver antenna is at 90 degrees to and pointing at the centre of the transmitter allowing
centimetre accurate positioning of a pig.
The transmitter can be changed between two pulsing transmission rates via an easily
accessible slide switch inside the transmitter.
It is possible to detect the EM transmissions from a 3015X transmitter through pipeline walls in
excess of 40mm thick, however performance is dependent on several factors including the type
of receiver and antenna used, distance between antenna and transmitter, pig design, pig
speed, pipeline diameter, pipeline material and background EM noise levels. Please contact
OEL to discuss the most effective configuration.
A non-ATEX version of the transmitter can be manufactured with specially designed endcaps
which allow fitting of pigging discs directly to the transmitter - the transmitter itself becomes
the pig body. This dramatically increases the received EM signal because it no longer needs to
propagate through an additional pig body as well as the pipeline.
Parameters such as lifetime, pulse rate, frequency and output level can be customised during
manufacture, please contact Online Electronics Ltd for more details.
