Endress+Hauser Soliphant M FTM50 Manual

TI392F/00/en
Technical Information
Soliphant M FTM50, FTM51, FTM52
Level limit switch
Universal vibration limit switch for fine-grained bulk solids,
also for explosion-hazardous areas
Application
Soliphant M is a robust level limit switch for use in silos
containing fine-grained or powdery solids even with a
low bulk density.
The various designs mean the device has a wide range of
applications. Certificates are also available for use in dust
or gas incendive hazard areas.
FTM50 compact design for installation in any direction.
A wide range of applications thanks to various variations;
e.g.
short fork with stainless steel housing (F15);
standard fork with polyester housing (F16)
FTM51 with extension pipe up to 4 m for installation in
any direction; e.g.
aluminium housing (T13) with separate connection
compartment EEx de
FTM52 with rope up to 20 m for installation from above;
e.g. with aluminium housing (F17)
Typical applications: cereals, flour, powdered milk,
cocoa, sugar, animal feed,
detergents, dye powder, chalk, gypsum, cement, sand,
plastic granules
Your benefits
• Market leader in the area of level detection of bulk
solids with practical experience since 1967
• No calibration: easy commissioning (plug and play)
• No mechanically moving parts: no wear,
long operating life
• Insensitive to external vibrations and build-up:
maintenance-free operation, independent of bulk
solids
• Switching status display through cover with sight
glass: easy monitoring
• Various electronic inserts: e.g. NAMUR, relay,
thyristor and PFM-signal outputs for optimum
alignment with the plant control system
• New: also with short fork (100 mm fork length)
• New: build-up and abrasion display selectable
• New: density setting and switching delay selectable

Soliphant M FTM50, FTM51, FTM52
2 Endress+Hauser
Table of contents
Function and system design. . . . . . . . . . . . . . . . . . . . . 4
Measuring principle . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4
Measuring system . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4
Electronic versions for level limit switch . . . . . . . . . . . . . . . . . . . . 5
Electronic versions for level sensor . . . . . . . . . . . . . . . . . . . . . . . . 5
Cable specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
Connecting cables . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
Cable entry . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
Input . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
Measured variable . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
Measuring range(detection range) . . . . . . . . . . . . . . . . . . . . . . . . . 5
Input signal . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
Measuring frequency . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
Output . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
Galvanic isolation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
Switch behaviour . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
Power-on behaviour . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
Fail-safe mode . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
Switching delay . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
Ex specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
FEM51 electronic insert
(AC 2-wire) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
Power supply . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
Electrical connection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
Output signal . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
Signal on alarm . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
Connectable load . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
FEM52 electronic insert
(DC PNP) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
Power supply . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
Electrical connection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
Output signal . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
Signal on alarm . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
Connectable load . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
FEM54 electronic insert
(AC/DC with relay output) . . . . . . . . . . . . . . . . . . . . . 9
Power supply . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9
Electrical connection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9
Output signal . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9
Signal on alarm . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9
Connectable load . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9
FEM55 electronic insert
(8/16 mA H-L edge) . . . . . . . . . . . . . . . . . . . . . . . . . 10
Power supply . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10
Electrical connection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10
Output signal . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10
Signal on alarm . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10
Connectable load . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10
FEM58 electronic insert
(NAMUR H-L edge) . . . . . . . . . . . . . . . . . . . . . . . . . . 11
Power supply . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11
Electrical connection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11
Output signal . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11
Signal on alarm . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11
Connectable load . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11
FEM57 electronic insert
(PFM). . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12
Power supply . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12
Electrical connection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12
Output signal . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12
Signal on alarm . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12
Connectable load . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12
Operating conditions . . . . . . . . . . . . . . . . . . . . . . . . . 13
Installation instructions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13
Environment . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15
Ambient temperature range . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15
Storage temperature . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15
Climate class . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15
Degree of protection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15
Vibration resistance . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15
Electrical safety . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15
Electromagnetic compatibility . . . . . . . . . . . . . . . . . . . . . . . . . . 15
Process . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15
Medium temperature limits . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15
Thermal shock resistance . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15
Limiting medium pressure range . . . . . . . . . . . . . . . . . . . . . . . . 15
State of aggregation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15
Grain size . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15
Bulk density . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16
Lateral load (static) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16
Tensile strength rope FTM52 . . . . . . . . . . . . . . . . . . . . . . . . . . . 16
Mechanical construction . . . . . . . . . . . . . . . . . . . . . . 17
Design, dimensions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17
Weight . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18
Material . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18
Process connections . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19
Overall length . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20
Separate housing . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20
Human interface . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21
Display elements . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21
Operating elements of electronic inserts
FEM51, FEM52, FEM54, FEM55, FEM58 . . . . . . . . . . . . . . . . . 22
Operating elements for FEM57 electronic insert . . . . . . . . . . . . . 23
Sediment detection FTM50, FTM51 . . . . . . . . . . . . . . . . . . . . . 23
Certificates and approvals . . . . . . . . . . . . . . . . . . . . . 24
CE mark, declaration of conformity . . . . . . . . . . . . . . . . . . . . . . 24
Ex approval . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24

3 Endress+Hauser
Soliphant M FTM50, FTM51, FTM52
Type of protection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24
Other standards and guidelines . . . . . . . . . . . . . . . . . . . . . . . . . 24
Ordering information . . . . . . . . . . . . . . . . . . . . . . . . 25
Soliphant M FTM50 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 25
Soliphant M FTM51 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 27
Soliphant M FTM52 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 29
Accessories . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 31
Sliding sleeve . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 31
Rope shortening kit . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 31
Spare parts . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 31
Supplementary documentation . . . . . . . . . . . . . . . . . 32
Operating Instructions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 32
Certificates . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 32

Soliphant M FTM50, FTM51, FTM52
4Endress+Hauser
Function and system design
Measuring principle A piezoelectric drive excites the tuning fork of Soliphant M FTM50, FTM51 and FTM52 to its resonance
frequency. If medium covers the tuning fork, the fork's vibrating amplitude changes (the vibration is damped).
Soliphant M's electronics compare the actual amplitude with a target value and indicates whether the tuning
fork is vibrating freely or whether it is covered by medium.
L00-FTM5xxxx-15-06-xx-xx-001
A = amplitude
Measuring system The components of the measuring system depend on the electronic insert selected.
AA
tt
Level limit switch
Soliphant M FTM with electronic versions
FEM51, FEM52, FEM54
L00-FTM5xxxx-15-05-xx-xx-000
Level sensor
Soliphant M FTM with electronic versions
FEM55, FEM57, FEM58
for connecting to a separate switching unit
or an isolating amplifier
e.g. Nivotester FTL325N, FTL375N (NAMUR)
or FTL325P, FTL375P (PFM)
L00-FTM5xxxx-15-05-xx-en-000
FEM51/52/54
…
FEM55/57/58
Ex i
E X E X
…
Switching unit
PLC
Isolating
amplifier
Segment
coupler

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 mm2; strand in ferrule to DIN 46228
• Protective earth in housing: cross-section max. 2.5 mm2
• Equipotential bonding connection on housing: cross-section max. 4 mm2
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

Soliphant M FTM50, FTM51, FTM52
6Endress+Hauser
Output
Galvanic isolation FEM51, FEM52, FEM55:
Between sensor and power supply
FEM54:
Between sensor, power supply and load
FEM57, FEM58:
See switching unit connected
Switch behaviour Binary
Power-on behaviour When switching on the power supply the output is set to "signal on alarm".
After a maximum of 3 s it switches to the correct output signal.
Fail-safe mode Minimum/maximum residual current safety selectable on electronic insert.
(with FEM57 only at Nivotester)
MAX = maximum safety:
The output switches safety-oriented when the fork is covered (signal on alarm)
For use with overfill protection for example
MIN = minimum safety:
The output switches safety-oriented when the fork is uncovered (signal on alarm)
For use with running empty protection for example
Switching delay 0.5 s when the sensor is covered
1.5 s when the sensor is uncovered (1.0 s for short fork)
Can be changed to 5 s for covering and uncovering.
Ex specifications FEM51, FEM52, FEM54, FEM55:
– Explosion protection for explosive gas-air mixtures:
Ex d, Ex de, XP, intrinsically safe sensor circuit Ex ia, IS
– Explosion protection for explosive dust-air mixtures:
Dust-Ex, DIP
FEM57, FEM58:
– Explosion protection for explosive gas-air mixtures:
Ex ia, IS (Intrinsically safe power supply + intrinsically safe sensor circuit)
– Explosion protection for explosive dust-air mixtures:
Ex iaD, IS (Intrinsically safe power supply + intrinsically safe sensor circuit)
FEM51 electronic insert (AC 2-wire)
Power supply Supply voltage: 19...253 V AC
Power consumption: < 1.0 W
Residual current consumption (IR): < 4 mA; 5.5 mA for short fork (in switch-off moment < 1 mA for 100 ms)
Short-circuit protection
Separation voltage: 3.7 kV
FEM51 overvoltage protection: overvoltage category III

Soliphant M FTM50, FTM51, FTM52
Endress+Hauser 7
Electrical connection Two-wire AC connection
Output signal
Signal on alarm Output signal on power failure or in the event of device failure: IR
Connectable load • For relays with a minimum holding power/rated power > 2.5 VA at 253 V (10 mA) or > 0.5 VA at 24 V
(20 mA)
• Relays with a lower holding power/rated power can be operated by means of an RC module connected in
parallel
• For relays with a maximum holding power/rated power < 89 VA at 253 V or 8.4 VA at 24 V
• Voltage drop across FEM51 max. 12 V
• Residual current with blocked thyristor max. 4 mA (5.5 mA for short fork)
• Load current max. 350 mA (short-circuit proof)
Always connect in series with a load!
Check the following:
• the residual current consumption in blocked state
• that for low voltage
– the voltage drop across the load is such that
the minimum terminal voltage at the electronic
insert (19 V) when blocked is not undershot.
– the voltage drop across the electronics when
switched through is observed (up to 12 V)
• that a relay cannot de-energise with holding
power below 1 mA.
If this is the case, a resistor should be connected
parallel to the relay (RC module available on
request).
• When selecting the relay, pay attention to the
holding power / rated power
(See below "Connectable load")
L00-FTM5xxxx-04-05-xx-en-004
F
1A
R
12
L1
U~ max. 253 V
50/60 Hz
(AC)
NPE
(Ground)
min.
19 V
*
*
FEM51
External load R
be connectedmust
IL
IR
L00-FTL5xxxx-07-05-
xx-xx-000
= load current
(switched through)
= residual current
(blocked)
= lit
= flashes
= unlit
L00-FTM5xxxx-04-05-xx-en-001
* See also "Operating elements"
on Page 22.
12
12
12
12
12
12
I
L
I
L
IR
IR
I
L
/I
R
I
R
MAX
MIN
MAX
MIN
Instrument failure
Maintenance
required *
Safety mode Level Output signal LEDs
green yellow red

Soliphant M FTM50, FTM51, FTM52
8Endress+Hauser
FEM52 electronic insert (DC PNP)
Power supply DC voltage: 10 V…55 V
Ripple: max. 1.7 V, 0…400 Hz
Current consumption: max. 16 mA
Power consumption: max. 0.86 W
Reverse polarity protection
Separation voltage: 3.7 kV
FEM52 overvoltage protection: overvoltage category III
Electrical connection Three-wire DC connection
Output signal
Signal on alarm Output signal on power failure or in the event of device failure: < 100 µA
Connectable load • Load switched via transistor and separate PNP connection, max. 55 V
• Load current max. 350 mA (cyclical overload and short-circuit protection)
• Residual current < 100 µA (with transistor blocked)
• Capacitive load max. 0.5 µF at 55 V, max. 1.0 µF at 24 V
• Residual voltage < 3 V (for transistor switched through)
Preferably used with programmable logic controllers
(PLC), DI module as per EN 61131-2.
Positive signal at switching output of the
electronics (PNP).
L00-FTM5xxxx-04-05-xx-xx-007
12 3
L+ L–
(+)
–
F
0.5A R
FEM52
U–10V…55 V (DC)
…
IL
IR
L00-FTL5xxxx-07-05-
xx-xx-000
= load current
(switched through)
= residual current
(blocked)
= lit
= flashes
= unlit
L00-FTM5xxxx-04-05-xx-en-007
* See also "Operating elements"
on Page 22.
L+ +
13
L+ +
13
13
13
13
13
I
L
I
L
I
R
I
R
I
R
I/I
L
R
MAX
MIN
MAX
MIN
Instrument failure
Maintenance
required *
Safety mode Level Output signal LEDs
green yellow red

Soliphant M FTM50, FTM51, FTM52
Endress+Hauser 9
FEM54 electronic insert (AC/DC with relay output)
Power supply Alternating voltage 19 V…253 V, 50/60 Hz or DC voltage: 19 V…55 V
Power consumption: max. 1.5 W
Reverse polarity protection
Separation voltage: 3.7 kV
FEM54 overvoltage protection: overvoltage category III
Electrical connection Universal current connection with relay output (DPDT)
Output signal
Signal on alarm Output signal on power failure or in the event of device failure: relay de-energised
Connectable load • Loads switched via 2 floating change-over contacts (DPDT)
• I~ max. 6 A (EEx de 4 A), U~ max. 253 V; P~ max. 1500 VA, cos ϕ= 1, P~ max. 750 VA, cos ϕ> 0.7
• I- max. 6 A (EEx de 4 A) to 30 V, I- max. 0.2 A to 125 V
• The following applies when connecting a functional low-voltage circuit with double isolation as per
IEC 1010: Sum of voltages of relay output and power supply max. 300 V
Power supply:
Please note the different voltage ranges
for AC and DC.
Output:
When connecting an instrument with
high inductance, provide a spark arrester
to protect the relay contact.
A fine-wire fuse (depending on the
load connected) protects the relay
contact on short-circuiting.
Both relay contacts switch simultaneously.
* When jumpered, the relay
output works with NPN logic.
** See below "Connectable load"
!
Note!
Please note the different voltage ranges
for AC and DC.
L00-FTM5xxxx-04-05-xx-xx-004
*
U~ 19…253 V U–19…55 V(AC) (DC)
L1
L+
a
NO
a
NO
u
C
u
C
r
NC
r
NC
**
N
L–
PE
(Ground)
F
0.5A
12 678345
FEM54
**
L00-FTL5xxxx-07-05-
xx-xx-001
= relay energised
= relay de-energised
= lit
= flashes
= unlit
L00-FTM5xxxx-04-05-xx-en-008
* See also "Operating elements"
on Page 22.
354687
354687
354
354
687
687
354687
MAX
MIN
MAX
MIN
Instrument failure
Maintenance
required *
Safety mode Level Output signal LEDs
green yellow red

Soliphant M FTM50, FTM51, FTM52
10 Endress+Hauser
FEM55 electronic insert (8/16 mA H-L edge)
Power supply Supply voltage: 11...36 VDC
Power consumption: < 600 mW
Reverse polarity protection
Separation voltage: 3.7 kV
FEM55 overvoltage protection: overvoltage category III
Electrical connection Two-wire connection for separate switching unit
Output signal
Signal on alarm Output signal on power failure or in the event of device failure: < 3.6 mA
Connectable load • R = (U - 11 V) / 16.8 mA
• U = connection DC voltage 11 V…36 V
For connecting to programmable logic controllers
(PLC) for example,
AI module 4-20 mA to EN 61131-2.
Output signal jump from high to low current
on limit.
(H-L edge)
L00-FTM5xxxx-04-05-xx-en-000
EEx ia
12
FEM55
–
U–11…36
+
E
X
E X
e.g. PLC
~ 16 mA
~8mA
L00-FTL5xxxx-07-05-
xx-xx-000
= 16 mA ± 5 %
= 8 mA ± 6 %
= lit
= flashes
= unlit
L00-FTM5xxxx-04-05-xx-en-006
* See also "Operating elements"
on Page 22.
+
21
+
21
+
21
+
21
~16 mA
~8 mA
~8 mA
~16 mA
+
21
8/16 mA
+
21
3.6 mA
MAX
MIN ON
OFF
3.6 mA
MAX
MIN
MAX
MIN
Maintenance
required *
Safety mode Level Output signal LEDs
green yellow red
Instrument failure

Soliphant M FTM50, FTM51, FTM52
Endress+Hauser 11
FEM58 electronic insert (NAMUR H-L edge)
!
Note!
Only in combination with standard fork (fork length 155 mm).
Power supply Power consumption: < 6 mW at I < 1 mA; < 38 mW at I = 2.2...4 mA
Separation voltage: 0.5 kV
Connection data interface: IEC 60947-5-6
Electrical connection Two-wire connection for separate switching unit
Output signal
Signal on alarm Output signal in event of device failure: < 1.0 mA
Connectable load • See Technical Data of isolating amplifier connected according to IEC 60947-5-6 (NAMUR)
• Connection also to isolating amplifier with safety engineering (I = 3...4.8 mA)
For connecting to isolating amplifiers
acc. to NAMUR (IEC 60947-5-6),
e.g. FTL325N, FTL375N from Endress+Hauser.
Output signal jump from high to low current
on limit.
(H-L edge)
Additional function:
Test button on the electronic insert.
Pressing the button breaks the connection
to the isolating amplifier.
!
Note!
For Ex-d applications, the additional function
can only be used if the housing is not exposed
to an explosive atmosphere.
!
Note!
Connecting to multiplexer:
Set clock time to min. 5 s.
L00-FTM5xxxx-04-05-xx-en-005
I
H
L
EEx ia
12
E
X
E X
FEM58
+–
Isolating amplifier
to
(NAMUR)
IEC 60947-5-6
L00-FTL5xxxx-07-05-
xx-xx-000
= lit
= flashes
= unlit
L00-FTM5xxxx-04-05-xx-en-012
* See also "Operating elements"
on Page 22.
+
21
+
21
+
21
+
21
+
21
+
21
0.4 …
1.0 mA
0.4 …
1.0 mA
0.4 …
1.0 mA
2.2 …
4.0 mA
2.2 …
4.0 mA
0.4 …
4.0 mA
MAX
MIN
MAX
MIN
Instrument failure
Maintenance
required *
Safety mode Level Output signal LEDs
green yellow red

Soliphant M FTM50, FTM51, FTM52
12 Endress+Hauser
FEM57 electronic insert (PFM)
Power supply Supply voltage: 9.5...12.5 VDC
Power consumption: < 150 mW
Reverse polarity protection
Current consumption: 10...13 mA
Separation voltage: 0.5 kV
Electrical connection Two-wire connection for separate switching unit
Output signal
Signal on alarm Output signal on power failure or in the event of device failure: 0 Hz
Connectable load • Floating relay contacts in connected switching unit Nivotester FTL120Z, FTL170Z, FTL320, FTL325P,
FTL370, FTL372 or FTL375P.
• For contact load see the Technical Data of the switching unit.
For connecting to switching units
Nivotester FTL120Z, FTL170Z, FTL320,
FTL325P, FTL370, FTL372, FTL375P
from Endress+Hauser.
Output signal jump of PFM signal from high to
low frequency when sensor is covered.
Switching between minimum/maximum
safety in the Nivotester.
Additional function "self test":
After interruption of the power supply,
a test cycle is activated which checks the sensor
and electronics without any change in level.
For this purpose, the operating elements must be
configured as follows.
The test is activated and monitored at the
switching unit.
L00-FTM5xxxx-04-05-xx-en-003
OFF
ON
ON
OFF
–+
78
33 34
37 38
d4 d2
z6 d6
z4 z2
PFM
50 /
150 Hz
E
X
E X
EEx ia
12
FEM57
Nivotester
FTL120Z, FTL320
FTL325P 1CH
FTL325P 3CH
FTL170Z, FTL370/372
FTL375P 1CH
Input 1
FTL170Z, FTL372
FTL375P 2CH
Input 2
FTL375P 3CH
Input 3
L00-FTL5xxxx-07-05-
xx-xx-000
= lit
= flashes
= unlit
L00-FTM5xxxx-04-05-xx-en-009
* See also "Operating elements"
on Page 22
150 Hz
50 Hz
0Hz
150 Hz
0Hz
OFF
ON
OFF
ON
Maintenance
required *
Safety mode Level Output signal
(PFM)
LEDs
green yellow red
Instrument failure

Soliphant M FTM50, FTM51, FTM52
Endress+Hauser 13
Operating conditions
!
Note!
All dimensions in mm! (100 mm = 3.94 in)
Installation instructions Mounting location
e.g. storage or buffer container
Orientation FTM50
L00-FTM5xxxx-11-06-xx-xx-001
Horizontal installation / Vertical installation
* Protective cover (to be provided by customer)
~250
~20°
~200
*
max. 60

Soliphant M FTM50, FTM51, FTM52
14 Endress+Hauser
Orientation FTM51, FTM52
L00-FTM5xxxx-11-06-xx-en-001
Horizontal installation / Vertical installation
* Nozzle length: max. L - 145 mm for short fork or L - 200 mm for standard fork
** Supporting tube (to be provided by customer)
*
L
FTM51
FTM51 FTM52
*
*
*
Clearance
Sliding sleeve

Soliphant M FTM50, FTM51, FTM52
Endress+Hauser 15
Environment
Ambient temperature range -50...+70 °C (-40...+70 °C with F16 housing)
Storage temperature -50...+85 °C
Climate class Climatic protection as per DIN IEC 68 Part 2-38, Fig. 2a
Degree of protection IP66/IP67 (housing F15, F16, F17), NEMA4X
IP66/IP68 (housing F13, T13), NEMA4X, NEMA6P
Vibration resistance DIN 60068-2-27 / IEC 68-2-27: shock 30 g; vibration 0.01 g2/Hz
Electrical safety IEC 61010, CSA 1010.1-92, FM3600
Electromagnetic compatibility Interference emission to EN 61326, Electrical equipment Class B,
Interference immunity to EN 61326, Annex A (Industrial)
Process
Medium temperature limits Permitted ambient temperature Taat housing depending on the process temperature Tpin the container:
L00-FTM5xxxx-05-05-xx-xx-001
x °C = (1.8 x + 32) °F
* Restriction on –40 °C with F16 housing
Thermal shock resistance Maximum 120 K
Limiting medium pressure
range
-1...25 bar
Maximum Working Pressure (MWP)
FTM50/51: 25 bar
FTM52: 2 bar (6 bar for EEx d and EEx de)
Burst pressure
FTM50/51: 100 bar
State of aggregation Solids
Grain size ≤10 mm
–40 °C80 °C
FTM52
FTM50, FTM51
70 °C
T
a
T
a
50 °C
0°C
–50 °C0°C50°C 100 °C 150 °CT
p
T
p
90 °C
–50 °C
F16 *
20 °C
–20 °C
–40 °C

Soliphant M FTM50, FTM51, FTM52
16 Endress+Hauser
Bulk density ≥10 g/l (standard fork)
≥50 g/l (short fork)
Lateral load (static)
L00-FTM5xxxx-05-05-xx-en-001
100 mm = 3.94 in
Tensile strength rope FTM52 3000 N
0 500 1000 1500 2000 2500 3000 3500 4000 4500 5000 5500 6000
1000
900
800
750
700
650
600
550
500
450
400
350
300
250
200
150
100
50
0
L
F
Short fork
Sensor ø43 mm
(see page 19)
Short fork
Sensor ø36 mm
(see page 19)
Standard fork
Sensor ø43 mm
(see page 19)
Maximum admissible l Nateral load F in
Overall length L in mm

Soliphant M FTM50, FTM51, FTM52
Endress+Hauser 17
Mechanical construction
!
Note!
All dimensions in mm! (100 mm = 3.94 in)
Design, dimensions Housing and process connection
Polyester housing (F16)
Process connection:
R 1½
NPT 1½
NPT 1¼
L00-FTM5xxxx-06-05-xx-xx-003
Stainless steel housing (F15)
Process connection:
Tri-Clamp
* Stainless steel cover with glass insert
L00-FTM5xxxx-06-05-xx-xx-004
Aluminium housing (F17)
Process connection:
Flange
* Aluminium cover with glass insert
L00-FTM5xxxx-06-05-xx-xx-013
ø85 max. 76
100
22.5
43
ø76
max. 64
113*
28
22.5
94
105
max. 60
22.5
ø80
max. 65
43
119*

Soliphant M FTM50, FTM51, FTM52
18 Endress+Hauser
Weight Depends on type
Material Housing:
316L, PBT, aluminium coated
Process connections:
316L
Sensor:
316L, PUR/silicone rope insulation, PBT
Aluminium housing (F13)
Process connection:
For EEx d for FTM51 and FTM52
* For Tri-Clamp 36 mm
L00-FTM5xxxx-06-05-xx-xx-005
Aluminium housing (T13)
with separate connection compartment
Process connection:
For EEx d(e) for FTM50
R 1½
NPT 1½
NPT 1¼
* For Tri-Clamp 16 mm
L00-FTM5xxxx-06-05-xx-xx-006
118
max. 60
22.5
ø80
max. 65
51*
max. 65 max. 97
13541*
22.5

Soliphant M FTM50, FTM51, FTM52
Endress+Hauser 19
Process connections
*1overall length standard fork
*2overall length short fork
*3fork length standard fork
*4fork length short fork
Process
connection
Code Dimensions (FTM50) Accessories Pressure
Temperature
(for FTM50/51)
NPT 1½
ANSI B 1.20.1
Sensor
ø1.67"
ø43 mm
R 1½
ANSI B 1.20.1
GJ
GG
L00-FTM5xxxx-06-05-xx-en-004
max. 25 bar
max. 150 °C
NPT 1½
ANSI B 1.20.1
Sensor
ø1.38"
ø36 mm
GX
L00-FTM5xxxx-06-05-xx-en-006
max. 25 bar
max. 150 °C
NPT 1¼
ANSI B 1.20.1
Sensor
ø1.38"
ø36 mm
GK
L00-FTM5xxxx-06-05-xx-en-005
max. 25 bar
max. 150 °C
Flange
ANSI B 16.5
EN 1092-1
(DIN 2527 B)
JIS B 2238
A#
B#
K#
L00-FTM5xxxx-06-05-xx-xx-007
Seal according to
design
Installed on site
In conformity with
FDA*
See nominal
pressure of flange,
however
max. 25 bar
max. 150 °C
Tri-Clamp
2" = ø64.0 mm
ISO 2852
TD
L00-FTM5xxxx-06-05-xx-xx-008
Clamping ring and
front seal
Installed on site
In conformity with
FDA*
max. 16 bar
max. 120 °C
max. 2 bar
max. 150 °C
* Material in conformity with FDA as per 21 CFR Part 177.1550/2600
*1 = 200; *2 = 145
ø43
*3 = 155; *4 = 10020.5
50/2"AF
*2 = 145
ø36
*4 = 100
20.5
50/2"AF
*2 = 145
ø36
*4 = 10020.5
45 / 1¾"AF
*1 = 215; *2 = 160
ø43
*3 = 155; *4 = 100
*1 = 215; *2 = 160
ø43
*3 = 155; *4 = 100

Soliphant M FTM50, FTM51, FTM52
20 Endress+Hauser
Overall length For FTM51, depends on process connection and selected pipe extension,
for FTM52, depends on process connection and selected rope length
L = overall length, X = fork length
Further informations to overall length/fork length see "Measuring range" on Page 5.
Separate housing
L00-FTM5xxxx-15-05-xx-xx-002
x °C = (1.8 x + 32) °F
Application: for extended ambient temperature and applications with confined installation location
(e.g. filling nozzle applications).
The cable between the separate housing and sensor can be shortened at the customer's.
Thread: NPT 1½
NPT 1¼
R 1½
Flange and Tri-Clamp
FTM51
L00-FTM5xxxx-06-05-xx-xx-009
FTM52
L00-FTM5xxxx-06-05-xx-xx-011
FTM51
L00-FTM5xxxx-06-05-xx-xx-010
FTM52
L00-FTM5xxxx-06-05-xx-xx-012
From lower edge of thread
L
X
L
X
L
X
L
X
E
X
T max. = 150 °C
Zone 0
Zone 20
a
Tmax. = 70 °C
Zone 1
Zone 21
Tmax. = 120 °C
L=6m