DIGITAL TRANSDUCER
Configuration and Modbus Interface
PRELIMINARY
PCS III Technical Description CANopen 1r1 UK 310715.docx
09/02/2021
S2Tech srl
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4.5.
NOT MEASURING DEAD LENGTH
The dead length refers to the stretch at the very far end of the measuring probe where there is
either no measurement or the measurement does not satisfy the technical specifications of the
transducer.
Series PC certificates indicate dead length values.
Probe end (A) dead length (see certificate) is generally used for mechanical anchorage of the
probe itself.
Should you require an improvement on standard linearity, you are advised to consider an
adjunctive “dead length”, of about 20 – 25 mm, positioned near the measuring head.
4.6.
MANUFACTURING MATERIALS
4.6.1.
TRANSDUCER MANUFACTURING MATERIALS
The working principle requires that the manufacturing materials of the probe (cylindrical rod), the
hexagonal part and relative fastening nuts of the head and the floats be made of non-magnetic
materials.(=NM=diamagnetic).
For models bearing the suffix (-S), the probe and the union are made of AISI 316 L stainless
steel. The measuring head casing is made of die-cast aluminum alloy.
For models bearing the suffix (-A), we have aluminum alloy instead of steel.
4.6.2.
MANUFACTURING MATERIALS FOR PARTS NEAR TO THE TRANSDUCER.
In order to have transducer to work correctly, the magnetic field of the cursor must close across
the magnetostrictive guide inside the transducer, even in the end areas of the A probe and near
the head.
Permanent external magnetic fields generated by other magnets or residual magnetic fields,
generated from the cursor coming into occasional contact or proximity of magnetisable materials
(paramagnetic materials), can affect the measurement.
