Endress+Hauser Liquiphant M FTL50H - Connection, Function, and Performance; Connection Cables and Functional Modes; Performance Characteristics and Influences

Liquiphant M FTL50(H), FTL51(H)
20 Endress+Hauser
Connection and function
Connecting cables • Electronic inserts: cross-section max. 2.5 mm
2
; strand in ferrule to DIN 46228
• Protective earth in housing: cross-section max. 2.5 mm
2
• External equipotential bonding connection on housing: cross-section max. 4 mm
2
Fail-safe mode Minimum/maximum residual current safety selectable on electronic insert
(with FEL57 on Nivotester only)
Max. = maximum safety:
The output switches to the power fail response when the fork is covered
For use with overfill protection for example
Max. = minimum safety:
The output switches to the power fail response when the fork is exposed
For use with dry running protection for example
Switching time When fork is covered: approx. 0.5 s
When fork is exposed: approx. 1.0 s
Other switching times on request
Additionally configurable for PROFIBUS PA: 0.5...60 s
Switch-on behaviour When switching on the power supply, the output assumes the alarm signal.
After max. 3 s it assumes the correct switching mode (Exception: FEL57)
Performance characteristics
Reference operating
conditions
Maximum measured error Specified by mounting position: max. +/–1 mm
Repeatability 0.1 mm
Hysteresis Approx. 2 mm
Influence of medium
temperature
Max. +1.8…–2.8 mm (–50…+150 °C)
Influence of product density Max. +4.8…–3.5 mm (0.5…1.5 g/cm
3
)
Influence of medium pressure Max. 0…–2.5 mm (–1…64 bar)
Ambient temperature: 23 °C
Medium temperature: 23 °C
Product density: 1 g/cm
3
(water)
Viscosity: 1 mm
2
/s
Medium pressure p
e
: 0 bar
Sensor mounting: vertical from above
Density switch: to > 0.7
L00-FTL5xxxx-06-05-xx-en-000
13 mm
Switchpoint
for
reference conditions