Specs at a glance
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Process temperature
-40°C ... 150°C
(-40°F ... 300°F) -
Process pressure absolute / max. overpressure limit
Vacuum ... 25 bar
(Vacuum ... 360 psi) -
Min. density of medium
200 g/l
Field of application
Soliphant FTM21 is a point level switch for applications with fine-grained or coarse-grained, non-fluidized bulk solids. The various designs means the device has a wide range of applications. Certificates are also available for use in dust and hazardous areas.
Point level switch for fine grained solids
Process connections: Threads
Temperature: -40 to +150°C (-40 to +300°F)
Pressure: -1 to +25bar (-14.5 to +360psi)
Sensor length: 500mm, 1,000mm, 1,500mm
Sensor material: 316L
International explosion protection certificates
Benefits
No calibration required, easy commissioning (plug and play)
Measurement not affected by build-up or external vibration
No mechanically moved parts, free of maintenance
Sensor material 316L, abrasion resistant even with building materials
Plastic housing with cover with sight glass, switch status visible from outside;
also aluminium housing availableNot affected by flow noises
Available with explosion protection certificates
Videos
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Vibronic measuring principle
Fundamental selection
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Simple products
- Easy to select, install and operate
Technical excellence
Simplicity

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Standard products
- Reliable, robust and low-maintenance
Technical excellence
Simplicity
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Specialized products
- Designed for demanding applications
Technical excellence
Simplicity
Variable
FLEX selections | Technical excellence | Simplicity |
---|---|---|
Fundamental selection Meet your basic measurement needs |
Technical excellence
|
Simplicity
|
Lean selection Handle your core processes easily |
Technical excellence
|
Simplicity
|
Extended selection Optimize your processes with innovative technologies |
Technical excellence
|
Simplicity
|
Xpert selection Master your most challenging applications |
Technical excellence
|
Simplicity
Variable |
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Measuring principle
Vibration Solids
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Characteristic / Application
Point level switch for fine grained solids
Single rod
Universal
No calibration required
Not affected by build-up or external vibration
Robust
Switch value visible from outside
Tube extension -
Supply / Communication
10 - 45 VDC
19 - 253 VAC relay
DC PNP 10 - 45 V -
Ambient temperature
-40°C ... 70°C
(-40°F ... 160°F) -
Process temperature
-40°C ... 150°C
(-40°F ... 300°F) -
Process pressure absolute / max. overpressure limit
Vacuum ... 25 bar
(Vacuum ... 360 psi) -
Min. density of medium
200 g/l
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Main wetted parts
316L
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Process connection
Thread
R 1"
R 1 1/2"
1 1/4" NPT
1 1/2" NPT -
Sensor length
500 mm (20")
1000 mm (40")
1500 mm (60") -
Communication
DPDT relay
DC PNP max 350 mA -
Certificates / Approvals
ATEX, FM, CSA, CSA C/US, IEC Ex, NEPSI, INMETRO, EAC
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Options
Sliding sleeve available
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Application limits
Density: < 200g/l
Grain size: > 25mm (1")
Not for fluidised media
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