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Process Control Instruments, Field Devices and Industrial Automation
PRODUCTS & SERVICES is a provider of process control instruments and field devices for Oil & Gas, Industrial Machinery, Pipelines, Custody Transfer, Tank Gauging, Waste Processing, Water Treatment Plants, Burner Management Systems and Incinerators, Conveyor Control, Food & Beverage, Motor, Pump & Compressor Control, Wireless Telemetry, Data Logging, Real-Time Process Data to Web.

We are an online distribution channel of genuine manufactured instruments such as

  • Flow Transmitters, Indicators, Sensors and Switches.
  • Pressure Switches, Indicators and Transmitters.
  • Level Switches, Indicators and Transmitters.
  • Temperature Elements, Switches and Transmitters.
  • Mass Flow Meters.
  • Density Meters.
  • pH/ORP Analyzers.
  • Disolved Oxygen Analyzers.
  • Turbidity Meters.
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EH Nivotester FTC325 Capacitive Point Level Switch for liquids and solids. Intrinsically safe signal circuit. 2-wire PFM or 3-wire input. Includes 2 Relays and Compact Housing with DIN-rail mounting. ATEX, FM, CSA and INMETRO approvals.

Part# with Options:        FTC325-A2A31
Price with Options:        Please Email us your request for quote   


(1) Approval for EH FTC325
Input & Housing
(2) Input & Housing for EH FTC325
Power Supply
(3) Power Supply for EH FTC325
Switch Output
(4) Switch Output for EH FTC325

  Availability 8 Days  ]

  • Point level detection in tanks containing liquids and silos containing bulk solids. For capacitance sensors, which may also be used in hazardous areas of category ATEX II (1) GD
  • Overfill protection for tanks containing flammable or non-flammable fluids hazardous to water
  • Dry running protection for pumps
  • Two-point control (s with 3-WIRE)
Your benefits
  • Intrinsically safe signal circuit [EEx ia] IIC for using sensors in hazardous areas
  • Calibration using operating keys
  • High functional safety thanks to:
    • fail-safe pulse-frequency modulation (PFM) or 3-WIRE technology
    • Checkable relay function
  • Compact housing for easy series mounting on a standard DIN rail in the cabinet
  • Pluggable terminal blocks make wiring easy
  • Can be used with FEI57S (PFM), FEI53 (3-WIRE)
  • Limit value and alarm relay
  • WHG approval (PFM)
  • Protection against maloperation and manipulation
    • each change of the device configuration leads to signaling via the red LED and a fault message
Measuring principle

Probe and tank (or ground tube/counterpotential) form a capacitor whose capacitance changes with the level of the product.


The electronic insert FEI57 converts the change of capacitance into a change of frequency, which switches the output relay in the Nivotester FTC325 PFM.


The electronic insert FEI53 converts the change of capacitance into a voltage signal, which switches the output relay in the Nivotester FTC325 3-WIRE.

Characteristic / ApplicationTransmitter with intrinsically safe signal
Calibrating using operating keys
adjustable operating delay
2-wire PFM
Rail mounting:
Wide: 45mm (PFM
)Wide: 22,5 mm
With adjustable hysteresis
SpecialitiesMin / Max - changeover
Test/correction key (PFM)
Supply / Communication85V ... 253V AC
20V ... 60V DC
Ambient temperatureSerial montage
-20 C ... 50 C
(-4 F ... 122 F)
Communication2 Relays
Certificates / ApprovalsATEX, FM, CSA, TIIS, INMETRO
Safety approvalsOverfill prevention WHG

B2B Checkout Options: PO#, Designated Carrier and Tax-Exempt purchase
Payment Options: Credit Card, Credit Card Over the Phone, PAYPAL, Wire Transfer, Check and Money Order

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EH Nivotester FTL325P Vibronic Point level switching unit for connection to Liquiphant or Soliphant. DIN-Rail. Intrinsically safe signal circuit. SIL3 safety approval. ATEX, FM and CSA approvals.




EH Nivotester FTL375P Vibronic Point level switching unit for connection to Liquiphant or Soliphant. 19" circuit board. Intrinsically safe signal circuit. 20-30VDC. Racksyst 4HP Housing. SIL3 safety approval. ATEX approval.




EH Nivotester FTR325 Microwave Barrier Switch amplifier for Soliwave FQR50/FDR50. 1 channel. Relay and DPDT communication. Rail Mounting. SPDT level and SPST alarm/level outputs. ATEX and IECEx Approvals.




EH Nivotester FTL825 Vibronic Point level switching unit for Liquiphant FTL80, FTL81 and FTL85. DIN-Rail. FailSafe overfill prevention. 2 SPST safety contact point level, 1 SPST signal contact and 1 SPDT fault contact. SIL3 safety approval. ATEX, FM and CSA approvals.



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