Process; Process Temperature Range; Medium Conditions; Thermal Shock - Endress+Hauser Liquiphant FTL64 Operating Instructions Manual

Technical data
60
14.4

Process

14.4.1

Process temperature range

• –60 to +230 °C (–76 to +446 °F)
• –60 to +280 °C (–76 to +536 °F)/to 300 °C (572 °F) for max. 50 h on cumulative basis
• –50 to +230 °C (–58 to +446 °F) with PFA coating (conductive)
The device can be ordered for use in very aggressive media with a highly corrosion-
resistant PFA coating. At medium temperatures up to ≥ 150 °C (302 °F), pay attention
to the chemical durability and the increasing risk of damage to the coating from
diffusion.
Observe pressure and temperature dependency,
sensors" section.
14.4.2

Medium conditions

The service life of the device can be impacted in applications where increased hydrogen
diffusion through the metallic membrane can be expected.
Typical conditions:
• Temperature: > 180 °C (356 °F)
• Pressure: > 64 bar (928 psi)
14.4.3

Thermal shock

Without restrictions within the process temperature range.
With PFA coating (conductive): ≤ 120 K/s
14.4.4

Process pressure range

WARNING
L
The maximum pressure for the device depends on the lowest-rated element, with
regard to pressure, of the selected component. This means that it is necessary to pay
attention to the process connection as well as the sensor.
‣
For pressure specifications, see the "Mechanical construction" section.
‣
Only operate the device within the specified limits!
‣
The Pressure Equipment Directive (2014/68/EU) uses the abbreviation "PS". The
abbreviation "PS" corresponds to the MWP (maximum working pressure) of the device.
Refer to the following standards for the permitted pressure values of the flanges at higher
temperatures:
• pR EN 1092-1: 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
In each case, the lowest value from the derating curves of the device and the selected
flange applies.
Devices with CRN approval: maximum 90 bar (1 305 psi) for devices with a pipe
extension. Information on the Endress+Hauser website:
Downloads.
Liquiphant FTL64
see the "Process pressure range of the
A
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