Ultrasonic Double Sheet Monitor UDC-18GMA-400-3E2
Function input
D
at
e of
ed
iti
on:
12
/1
7/
04
6
Subject to reasonable modifications due to technical advances.
Copyright Fuchs, Printed in Germany
Fuchs Group • Tel.: Germany (06 21) 7 76-0 • USA (330) 4 25 35 55 • Singapore 7 79 90 91 • Internet http://www.pepperl-fuchs.com
3
Function input
Function input (wire colour pink, PK) is used to adjust the sensor and assign
parameters to it. The following functions are available:
• Alignment aid
• Program selection
• Output pulse extension
During normal operation, the function input must always be securely connec-
ted with +U
B
or -U
B
, to avoid possible interference or improper functionality.
4
Measuring system
A complete unit consists of an ultrasonic emitter unit and an evaluation and
receiver unit. The sensor heads are optimally adjusted to each other when
they leave the factory. Therefore, they should not be used separately or ex-
changed with other devices of the same type. The plug connector on the emit-
ter/receiver connection cable is only intended to be used for easier mounting,
not to replace units.
5
Installation and adjustment
Correct functionality of the sensor can only be ensured if the emitter and re-
ceiver are adjusted so they are exactly centred on each other. In addition, the
UDC-18GM offers an electronic alignment aid (see chapter 6.6.1 "Alignment
aid" on page 11).
Recommended spacing between the sensor heads:d = 40 mm ... 45 mm
Angular misalignment:
α
< +/- 1°
Maximum misalignment:
s < +/- 1 mm
(see Fig. 5.1 and Fig. 5.2 on page 7)
