Soliphant M FTM50, FTM51, FTM52
Endress+Hauser 5
Electronic versions for
level limit switch
FEM51:
Two-wire AC version;
Switch the load directly into the power supply circuit via the thyristor.
FEM52:
Three-wire DC version;
Switch the load via the transistor (PNP) and separate connection.
FEM54:
Universal current version with relay output;
Switch the loads via 2 floating change-over contacts (DPDT).
Electronic versions for
level sensor
FEM55:
For separate switching unit; signal transmission 8/16 mA along two-wire cabling.
FEM57:
For separate switching unit; PFM signal transmission;
Current pulses superposed on the power supply along the two-wire cabling.
Self test from the switching unit without changing levels.
FEM58:
For separate switching unit; signal transmission H-L edge 2.2…4.0 / 0.4…1.0 mA
to EN 50227 (NAMUR) along two-wire cabling.
Checking of connecting cabling and other devices by pressing a button on the electronic insert.
Cable specifications
Use a shielded cable in the event of strong electromagnetic radiation.
Immunity to temperature change of connecting cable
The connecting cables must withstand the ambient temperature +15 K.
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
• Equipotential bonding connection on housing: cross-section max. 4 mm
2
Cable entry Housing-specific; Phoenix screw terminal on electronic insert
Input
Measured variable Level (according to the mounting location and the overall length)
Measuring range
(detection range)
• FTM50: overall length see page 19
• FTM51: overall length 300... 4000 mm
• FTM52: overall length 750...20000 mm
The measuring range of Soliphant M depends on the medium, mounting location and fork length.
The detection range is located within the length of the fork.
One can distinguish between
• standard fork with a length of 155 mm (≥ 10 g/l) and
• short fork with a length of 100 mm (≥ 50 g/l)
Input signal Probes covered => small vibrating amplitude
Probes not covered => large vibrating amplitude
Selectable frequency monitoring (diagnosis) for detection of abrasion and build-up
Measuring frequency • standard fork: approx. 140 Hz
• short fork: approx. 350 Hz
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