D-FL 200 / Rev. 6
13
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Industrie Elektronik GmbH & Co KG
(Fig. 15) Measurement in two planes offset from the pipe axis, optional
Ultrasonic transducers are frequently installed as shown in
(Fig. 14) Measurement in a plane through
the pipe axis because it is less expensive. However, an installation of transducers in two planes can
certainly be carried out, as shown in
(Fig. 15) Measurement in two planes offset from the pipe axis.
The correction factors, which you can find in section
2. Function, page 1, have to be programmed into
the evaluation unit.
The handling of this evaluation unit is explained in section
8. Operating the D-FL 200-10 Evaluation
Unit. The correction factors can be improved by parallel measurements of an independent agency if
necessary.
If the duct runs horizontally, the transducers may be installed in a horizontal plane. If the transducers
are installed in a vertical plane, the lower sensor will more easily accumulate condensate and dust.
5. Electrical Connection D-FL 200
5.1. Electrical Connection of the D-FL200-10 Evaluation Unit
The D-FL200-10 evaluation unit is manufactured as a 19” module. Since the evaluation unit is to be
mounted as close to the transducers as possible, an IP 65 / NEMA 4X housing is supplied. The layout
of the terminal strip on the housing is depicted in
(Fig. 16) Terminal strip on the housing. The
transducers are connected to the evaluation unit with specially shielded cable. The maximum
permissible cable length from the transducers to the evaluation unit is 50 m / approx. 164 ft.
