Levelflex M FMP40 and FMP45 Technical data
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11 Technical data
11.1 Additional technical data
11.1.1 Input
Measured variable The measured variable is the distance between a reference point (see Fig. on Page 18) and the
interface.
Subject to the input empty distance, the level is calculated.
11.1.2 Output
Output signal 4…20 mA with HART protocol
Signal on alarm Error information can be accessed via the following interfaces:
• Local display:
– Error symbol (see Page 29)
– Plain text display
• Current output
• Digital interface
Linearization The Levelflex M linearisation function is not provided.
11.1.3 Performance characteristics
Reference operating
conditions
• temperature = +20 °C (68 °F) ±5 °C (9 °F)
• pressure = 1013 mbar abs. (14.7 psia) ±20 mbar (0.3 psi)
• humidity = 65 % ±20%
• Bypasss DN50 or coax slitted)
• upper phase oil DC = 2,1 (constant)
• lower phase water DC80
• total level constant
• minimum layer thickness > 100 mm (> 3,8")
• no emulsion
Maximum measured error ± 10 mm.
Resolution • Digital: 1 mm
• analog: 0.03 % of the measuring range
Reaction time The reaction time is dependent on the configuration.
Shortest time:
• 2-wire electronics: 1 s
• 4-wire electronics: 0.7 s
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