MSA Senscient ELDS 1000 series, Руководство по эксплуатации

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Installation & Commissioning
106
Senscient ELDS™
Rev 15
GB

Mount Rigidity
Check that the units have been mounted securely to the supporting structure. Check that the
supporting structure is sufficiently rigid to maintain alignment in the anticipated operating
conditions. A maximum angular movement of ±1º is allowable.
As an approximate guideline, a sufficiently rigid mount/supporting structure will only move a few
millimetres (not more than ±6mm) when leaning one's body weight against it.
When pushed hard and released, the mount/supporting structure should return quickly to its
original position and should not wobble or sway. If the mount/ support is unacceptable, take
steps to have the mount / supporting structure improved.

Vibration
Check the installation and its close surrounds for potential or existing sources of excessive
vibration. Such sources could include heavy plant/machinery, turbines, generators etc.
If there is the possibility that such vibration sources could be, or already are causing
unacceptable movement, investigate how the effects of this vibration can be mitigated.

Excess Heat
Check the installation and its surrounds for potential sources of excessive heat. The unit is
specified for ambients up to +60°C. Potential sources of excessive heat include flare-stacks,
generator/turbine exhausts and steam vents. If there is the possibility that such heat sources
are causing unacceptable temperatures to be reached, investigate how the effects of these
sources can be reduced.

Supply Voltage
Check that the supply voltage applied to the unit is within the specified 18V to 32V range and is
stable.

Earthing
Inspect the earth / ground connections to the units.

RFI/EMC
Assess the installation, cabling and its close surrounds for known or potential sources of
excessive RFI/Electromagnetic Interference. Such sources could include radio/radar
transmission antennae, high voltage switch-gear, large electrical generators/motors etc.

Contaminants
Assess the installation and its surrounds for sources of contaminants that could build-up on the
unit’s windows. Such contaminants could include oil mist, heavy sea spray, drilling mud, dirty
exhaust fumes, wave splash etc.
If there is a realistic possibility that such contaminants could eventually completely obscure the
optics, consider how the rate of build-up could be reduced or whether scheduled cleaning might
be required. Senscient can provide a Storm Cowl for use in locations where the heavy build-up
of contaminants upon the optics is a concern.

Beam Obstruction/Blocks
Ideally, a clear path of at least 20cm diameter should be provided between the Transmitter and
the Receiver. Assess the installation and the beam-path for potentially problematic sources of
beam blockage, such as moving machinery/plant, growing vegetation and places where icicles
or snow-drifts could build up.