Lightning Audio 7532 manual 11.4.2Equipment architecture, Appendix, Radar Tank Gauge, Output

Appendix Radar Tank Gauge

Output

The 7500 RTG is commissioned by entering an empty distance E (=zero), a full distance F (=span), and an application parameter. The application parameter automatically adapts the instrument to the measuring conditions. The data points “E” and “F” correspond with 4mA and 20mA for instruments with current output. They correspond with 0 % and 100% for digital outputs and the display module.

A linearization with max. 32 points, based on a table entered either manually or semi- automatically, can be activated locally or remotely. This function provides a measurement in engineering units and a linear output signal for spheres, horizontal cylindrical tanks, and vessels with conical outlet.

11.4.2Equipment architecture

Stand-alone

The 7500 RTG can be used for measurement in a stilling well as well as in free space.

The different instrument versions are applied as follows:

•The 7532 RTG with planar antenna is the preferred device in stilling wells ≥ 150 mm.

•The 7530 RTG with horn antenna can be used in stilling wells with a diameter <150 mm. However, for these diameters no custody transfer approval is available.

•The 7533 RTG with parabolic antenna is preferred for free-space measurements. The 7530 RTG with horn antenna can be used as an alternative for small nozzle diameters.

•The 7531 RTG with rod antenna (PTFE) should be used for measurements of highly aggressive media (e.g. sulphur).

•The instruments are equipped with a passive 4…20 mA output with HART protocol.

The complete measuring system consists of:

SPS
	- COMMUWIN II					- ToF Tool
	- ToF Tool
	Commubox					Service-Adapter
						FXA 193
	FXA 191
HART				HART
2x Messumformer-				Anzeige- und		-002
speisegerät					ENDRESS + HAUSER	-en
				Bedienmodul	￿
RN 221 N						-06
				VU 331	– + E
						14-00
						-
	9		6			L00-FMR53xxx
	1	2	3
	4	5	6
	7	8	9	HART-Handbediengerät
	. 0	-
FXA 191
	375			DXR 375
	FIELD COMMUNICATOR
oder
DXR 375

98 Installation and Operations Manual