About Siemens' Transducers; Hazardous Area Applications - Siemens XPS10 Operating Instructions Manual

About Siemens' Transducers

This product is intended for use in industrial areas. Operation of this
equipment in a residential area may cause interference to several
frequency based communications.
The Echomax XPS F series of
transducers operates in association with
Siemens ultrasonic level monitoring
products.
The transducer operates by converting
electrical pulses that are provided by the
transceiver into ultrasonic pulses. When
transmitted, these ultrasonic pulses
reflect from the material surface and echo
back to the transducer. The echo is
converted back to an electrical signal,
and is interpreted by the Siemens
tranceiver using our proven Sonic
Intelligence™ algorithms.
The effective acoustical energy is emitted
from the transducer face and radiated
outward, decreasing in amplitude at a
rate inversely proportional to the square
of the distance.
Maximum power is radiated axially
(perpendicular) from the transducer face in a
referred to as the axis of transmission. Where power is reduced by half (– 3
dB), a conical boundary defining the sound beam, centered about the axis of
transmission, is established. The diametric measurement of the cone in
degrees defines the beam angle. Impedance matching techniques are used
to optimize the transfer of power from the transducer into air and vice versa.
The XPS F series transducers incorporate an integral temperature sensor
that reports the air temperature at the transducer to the transceiver. The
connection is transparent, in that both the ultrasonic and temperature
components of the transducer use the same leads.

Hazardous Area Applications

The Echomax XPS F series of transducers can be used in hazardous areas.
For the XPS 10 F series transducer, a hazardous seal must be used to suit
hazardous area classification. This seal is not supplied by Siemens.
The XPS 15 F comes equipped with a stainless steel coupling suitable for
use in hazardous locations.
A5E32725813 XPS 10/15 F Series Transducer
hazardous seal
(XPS 10 F
series only)
transducer
transducer
face
-3db
boundary
axis of
transmission,
perpendicular
to transducer
face
line
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