
ONLINE ELECTRONICS LTD
ID5000P_5001_A01 Page 6 of 18
3. OPERATION
The Special Conditions for Safe Use detailed in section 8 ATEX APPENDIX of this manual must
be observed and followed at all times.
3.1. INSTALLATION
The unit can be installed by the end user, but the configuration and final set-up will require the
attendance of a representative from manufacturer, unless otherwise agreed.
For optimum results, the unit should be installed in the middle of a straight section of pipeline
at least 10m long. Sources of vibration, bends, valves and other pipeline features will alter the
expected acoustic signature of passing pigs and should be avoided. Drawings outlining the
proposed location of the unit should be provided to the manufacturer for review and comment
at the initial stage of any request. Contact manufacturer for further advice regarding suitable
installation checks.
If pipeline surface temperature is greater than +85°C then the main housing must not be
mounted on the pipeline and the sensor must be mounted on the lower half of the pipeline to
prevent convective heating. The sensor can be mounted on pipelines with surface temperature
up to +150°C assuming that ambient air temperature does not exceed +60°C.
3.1.1. MAIN HOUSING INSTALLATION
1. With the help of another person, sit the main housing assembly on the pipeline at a suitable
location and using the provided straps, securely tighten the main housing assembly to the
pipeline. Alternative mounting arrangements (such as pole mounted) can be specified at
time of order.
2. If required, connect the earth stud on top of the housing to a suitable earth bonding point at
the point of installation.
3.1.2. TRANSDUCER INSTALLATION
1. For optimum results, ensure that the pipeline surface at the point of installation is uniform,
clean and smooth. If the surface is irregular, corroded, or has flaking paint, then an
abrasive paper or wire brush should be used to prepare the surface. The unit will operate
effectively through most painted layers as long as they are clean, uniform and are fully
bonded to the pipeline surface, however in the case of surface coatings which contain air
gaps, foam coatings, concrete coatings, thermally insulating coatings or composite coatings
consisting of several materials with different densities, an area of coating should be
removed to allow the installation of the Transducer directly onto the bare pipeline surface.
Contact manufacturer for further advice if there are any doubts.
2. Before the transducer mounting block is strapped to the pipeline, screw the transducer into
the transducer mounting block so that it will require less than one full turn to securely press
the transducer face to the pipeline surface when mounted. Care must be taken to avoid
excessively twisting of the cable between the transducer and the main housing.
3. Securely strap the transducer assembly onto the pipeline ensuring that the transducer is
held perpendicular to the pipeline surface.
4. Hand tighten the transducer firmly onto the pipeline surface. Using excessive force may
damage the transducer. If more than one full turn is required to tighten the transducer,
repeat the above procedure from step 2. Tighten the locking screw to prevent the
transducer from turning. Using excessive force may damage the mounting block.