NIVELCO EasyTREK SP-500 Pro, Инструкция по установке и программированию

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Thank you for choosing a NIVELCO instrument.
1. INTRODUCTION
Application
NIVELCO 's EasyTREK Pro compact ultrasonic level transmitters are excellent
for measuring the level of liquids.
The technology is based on the non-contacting ultrasonic principle, which is
particularly suited for applications where the measuring device cannot touch
the surface of the measured medium.
Operating principle
The ultrasonic level metering technology measures the time required for the
ultrasound pulse to make a round trip from the sensor to the measured level
and back. The sensor emits an ultrasonic pulse burst and receives the echoes.
The electronics processes the received signal by selecting the echo reflected
by the surface and calculates the distance between the sensor and the surface
from the time of flight. The distance constitutes the basis of all output signals of
the EasyTREK Pro .
The beam angle of NIVELCO 's SenSonic transducers is 5…7° at –3 dB,
which ensures reliable measurement in narrow silos with uneven sidewalls
and tanks with various interfering objects. Furthermore, the ultrasonic signals
are excellently focused and penetrate through gases, vapor, and foam due
to the narrow beam angle.
Diameters at 5°
beam angle.
The unit's design determines the minimum measuring distance (X
m
) within which the measurement is not possible (dead zone). Its value is according to P05 on
page 18 . Since the measurement is impossible within this range, the material must not get into this zone.
Maximum measuring distance (X
M
) is the longest distance that the device can measure under ideal conditions. For its value, see P04 on page 17. The maximum
measuring distance of the actual application (H) must not be greater than X
M
.