General Guidelines - Siemens Echomax XCT Series Operation Manual

Introduction
The Echomax XPS/XCT series of transducers operate with
Siemens Milltronics ultrasonic level monitoring products.
The transducer converts the electrical transmit pulse from the
transceiver into acoustical energy. It then converts the
acoustical energy of the echo back into electrical energy for the
controller.
The transducer face emits acoustical energy radiating outward,
decreasing in amplitude at a rate inversely proportional to the
square of the distance. Maximum power radiates
perpendicularly from the transducer face on the axis of
transmission. Where power is reduced by half (– 3 dB), a conical
boundary centered around the axis of transmission defines the
sound beam, the diameter of which is the beam angle.
The XPS/XCT transducers have an integrated temperature
sensor that reports the air temperature at the transducer to the controller.

General Guidelines

WARNING:
compatibility (or inertness) for general purposes. For exposure to specific
environments, check with chemical compatibility charts before installing.
XPS/XCT Series – Certificate SIRA 99ATEX5153X
This equipment may be used in hazardous areas associated with all gases with temperature
classes T1, T2, T3 and T4 for the XPS series (XPS-10, XPS-15, XPS-30, and XPS-40) and T1, T2,
and T3 for the XCT series (XCT-8 and XCT-12). The XPS series is only certified for use in
ambient temperatures in the range of - 40 °C to 95 °C and the XCT series is only certified for
use in ambient temperatures in the range of -40 °C to 145 °C. Neither should be used outside of
their respective temperature ranges.
Installation shall be carried out in accordance with the applicable code of practice, and by
suitably trained personnel.
These devices should only be supplied from a circuit containing a suitably-rated fuse that has a
breaking capacity of 4000A. This fuse is included in Siemens Milltronics controllers.
Repair of this equipment shall be carried out in accordance with the applicable code of
practice.
Page EN-2 XPS/XCT Series Transducers – OPERATION MANUAL
Materials of construction are chosen based on their chemical
transducer
transducer face
–3 db boundary
axis of
transmission,
perpendicular
to transducer
face
7ML19985QM82