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Reference Manual
IP2048/RM, Rev AA
Section 3: Installation
February 2015
3.2 Considerations before installation
The Mobrey MSP400RH and MSP900GH transmitters can be used for level and contents volume
measurements in open or closed tanks, or for open channel flow measurements.
The transmitter must be installed in a location where it is protected from ultraviolet radiation to
prevent long term degradation of the plastics used e.g. shrouded from direct sunlight.
It is important to correctly position the transmitter for reliable ultrasonic level measurement.
For maximum accuracy and stability of the level measurement reading, the transmitter should
always be shrouded from direct sunlight and radiated heat.
The transmitter may be site-tuned to deal with most application conditions, but it is
recommended that the following guidelines be adopted where relevant.
3.2.1 Safety considerations
Guidelines
1. Installation must be carried out by suitably trained personnel in accordance with the
applicable code of practice.
2. If the equipment is likely to come into contact with aggressive substances, it is the
responsibility of the user to take suitable precautions that prevent it from being
adversely affected, thus ensuring that the type of protection is not compromised.
Aggressive substances are acidic liquids or gases that may attack metals or solvents
that may affect polymeric materials.
Suitable precautions are regular checks as part of routine inspections, or establishing,
from the material's datasheet, that it is resistant to specific chemicals.
3. The equipment must only be cleaned with a damp cloth.
4. The equipment is not intended to be repaired by the user and is to be replaced by an
equivalent certified unit. Repairs should only be carried out by the manufacturer or
approved repairer.
5. The transmitter is double insulated, and therefore Protective Earthing is not required.
However, the cable shield/screen should be connected to a suitable ground (earth) at
one end only (see “Connecting the cable(s) to the transmitter” on page 16).
6. Note that if the equipment is used in a manner not specified by the manufacturer, the
protection afforded by the equipment may be impaired.
7. To ensure electro-magnetic compatibility in any European member state, it should not
be installed in a residential area.
Note
It is not advisable to mount the transmitter in close proximity to a source of electrical
noise such as a variable-speed drive, or other high-powered electrical device.