KROHNE BM 70 M Series, Инструкция по установке и эксплуатации

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BM 70 M 7
2.3 Modularity (signal converter, flange, antenna)
The measuring system consists of the flange system and the signal converter.
The flange system contains the microwave window separating product from pressure, and the
antenna system.
The compact signal converter contains the microwave generator and the entire signal processing
system, including provision of a standardised output signal (4 - 20 mA or digital interface).
The signal converter can be separated from the flange system under process conditions, without
loss of pressure or escape of product.
V96 version SA version
Converter
Flange
Antenna system
3 Input
3.1 Measured variable (distance, level, volume, reflection)
The primary measured variable is the distance between a reference point (as standard: tank
mounting flange) and a reflecting surface (e.g. surface of the liquid).
The filling level is determined by allowing arithmetically for the entered tank height.
Volume measurements are possible by entering a conversion table (max. 50 points).
The strength of the reflected signal can be measured for qualitative assessment of the tank
product or its surface.
3.2 Measuring range
Maximum tank height 0.5 m (20 inch)
Maximum measuring range 35 m (115 ft)
[0.5 - 35/40 m (1.64 - 115/131 ft)]
The useful range will depend on the antenna size, the reflection properties of the tank product,
the installation position, and the presence of interference reflectors (see Sections 6.1).