Emerson MSP422 Manuel D’Utilisation

IP2013, Rev BA

February 2012

Mobrey MSP422

3-2

The MSP422 is used for level measurement. 

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.

NOTE:
The Mobrey MSP422 is designed to be mounted in a non-metallic fitting or 
flange. The use of metallic fittings/flanges is not recommended.

a) Installation must be carried out by suitably trained personnel in 

accordance with the applicable code of practice.

b) 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.

c) The equipment must only be cleaned with a damp cloth.

d) The equipment is not intended to be repaired by the user and is to be 

replaced by an equivalent unit. Repairs should only be carried out by the 
manufacturer or approved repairer.

e) The transmitter is Double Insulated, and therefore Protective Earthing is 

not required. 

f)

To maintain protection against the possible spread of fire, the supply to 
the equipment must be limited to 3.75 Amps by a fuse or other means

g) Note that if the equipment is used in a manner not specified by the 

manufacturer, the protection afforded by the equipment may be impaired.

h) The transmitter complies with the European Directive for Electro Magnetic 

Compatibility (EMC) Class B. To ensure electro-magnetic compatibility in 
any 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.