FIAMA PFA5000T Manual do utilizador e manutenção - Página 4
Procurar online ou descarregar pdf Manual do utilizador e manutenção para Instrumentos de medição FIAMA PFA5000T. FIAMA PFA5000T 6 páginas. Linear potentiometer wire-transducer with analgoue output
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PFA3000T-12000T
Potentiometric wire linear transducers
Mechanical mounting
The wire potentiometer transducer has to be mounted on a flat surface. The 4 fixing bores, two for every
side, allow a practical and fast assembling of the transducer on the carrying structure (see figure).
The stainless steel wire that is necessary for the measure goes fixed using the appropriate threaded screw
M6. To avoid folds or distortions of the thread do not to exceed the maximum stroke of the wire.
During the assembling do not loosen the wire of the transducer quickly but it has to be followed during the
winding. Always pull the wire along just its axis to avoid deviations higher then 2°.
Installation
Before installing the instrument, read the following warnings:
a) Connect the instrument strictly following the instructions of the manual.
b) It is the responsibility of the user to check, before using, the correct settings of the parameters of the
instrument to avoid damage to persons or things.
c) The instrument CANNOT function in a dangerous environment (inflammable or explosive).
The unit has sensible parts to electrostatic charge; therefore the handling of the inner electronic cards has to
be carried out with appropriate care to avoid permanent damages.
The working temperature has to be between 0-50°C.
Power supply
a) Before connecting the instrument, check that the power supply tension is within the permitted limits and
that it corresponds to the one indicated on the tag.
b) Carry out the electrical connections with the instrument disconnected.
c) For the power line to instruments and sensors, a power supply line separate from that of the power is
required: it is necessary to use an isolating transformer.
d) The power line should provide a device that separates the set fuses of the instruments and should not be
used to regulate relays, contactors, etc.
e) If the network tension is very disordered (ex. from the changeover of the power units, motors, inverters,
welders, etc.), use the appropriate filters of the network.
f) If an earth connection is needed, ensure that the plant has a good earth system: tension between neutral
and earth <1V and the resistance <6 Ohm.
Data: 13/01/16
File: PFA_T_ing.doc
Pagina: 4 di 6