Test Pressure; Density - Endress+Hauser Liquiphant FTL51B Operating Instructions Manual

Liquiphant FTL51B
Endress+Hauser
WARNING
L
The maximum pressure for the measuring device is dependent on the lowest-rated
element, with regard to pressure, of the selected components. This means that it is
necessary to pay attention to the process connection as well as the sensor.
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For pressure specifications, see the "Mechanical construction" section.
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The measuring device must be operated only within the specified limits!
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The Pressure Equipment Directive (2014/68/EU) uses the abbreviation "PS". The
abbreviation "PS" corresponds to the MWP (maximum working pressure) of the
measuring device.
Permitted pressure values for flanges at higher temperatures can be found in the following
standards:
• pR EN 1092-1: 2005 With regard to its stability-temperature property, the material
1.4435 is identical to 1.4404, which is classed as 13E0 in EN 1092-1 Tab. 18. The
chemical composition of the two materials can be identical.
• ASME B 16.5
• JIS B 2220
The lowest value from the derating curves of the device and of the selected flange applies
in each case.
Process pressure range of the sensors
• PN: 64 bar (928 psi) at max. 150 °C (302 °F)
Ordering information: Product Configurator, order code for "Application" option "A"
• PN: 100 bar (1 450 psi) at max. 150 °C (302 °F)
Ordering information: Product Configurator, order code for "Application" option "B"
14.4.4

Test pressure

Gauge pressure
• PN = 64 bar (928 psi): test pressure = 1.5 · PN maximum 100 bar (1 450 psi) depending
on process connection selected
• Membrane burst pressure at 200 bar (2 900 psi)
• PN = 100 bar (1 450 psi): test pressure = 1.5 · PN maximum 150 bar (2 175 psi)
depending on process connection selected
• Membrane burst pressure at 400 bar (5 800 psi)
The instrument function is limited during the pressure test.
The mechanical integrity is guaranteed at pressures up to 1.5 times the process nominal
pressure (PN).
14.4.5

Density

• Switch position > 0.7 g/cm
Standard setting for liquids with a density > 0.7 g/cm
• Switch position > 0.5 g/cm
For liquids with a density > 0.5 g/cm
• Order option: 0.4 g/cm
For liquids with a density > 0.4 g/cm
If this option has been selected, the density setting is always set to 0.4 g/cm
setting can no longer be altered.
3 = order configuration
3 = can be configured via DIP switch
3 to < 0.8 g/cm
3
(not for devices with SIL)
3 and density < 0.6 g/cm
Technical data
3
3
3
3 . This
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