Siemens rueda de andar LC 500 Manual

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Siemens rueda de andar LC 500
7ML19985GE01 SITRANS LC 500 – INSTRUCTION MANUAL Page 21
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Installation
Mounting Instructions
The SITRANS LC 500 is easily installed: simply mount the instrument on the process
connection of the vessel.
Protection for solid-state switch
• for dc circuits: connect protection diodes in the correct polarity across the relay coil
• for ac circuits: connect a Voltage Dependent Resistor (VDR) or other ac compatible
component (such as zeners and protection diodes in combination) in the correct
polarity across the relay coil
Process Cautions
Notes:
• The transmitter is specified for use at temperatures ranging from –40 °C to
85 °C (–40
o
F to 185
o
F): if your process temperature is outside this range, a
standard option is available with a thermal isolator.
• Before mounting the SITRANS LC 500, check to ensure the threads are
matching to avoid damaging them.
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C
AUTION: Consider material surface
c
onfiguration when installing unit.
CAUTIONS:
• With a centrally mounted cable version,
take care that the tensile load does not
exceed probe or vessel rating
• With a cable version mounted close to
the tank wall, take care that the product
does not push the cable against the tank
wall: a spring can be used as a retainer.
500 mm
(20”) min.
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