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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 FTW325 Conductive Point level switch with intrinsically safe signal circuit. 2 channels. Compact housing for DIN rail. 2 relays (SPDT/DPDT). FM, CSA and ATEX Approvals.

Part# with Options:        FTW325-A2A1A
Price with Options:        Please Email us your request for quote   


(1) Approval for EH FTW325
Power Supply
(2) Power Supply for EH FTW325

  Availability 5 Days  ]

  • Two-point control also for hazardous areas
  • Overfill protection for tanks
  • Dry running protection for pumps
  • Point level detection
Your benefits
  • Cable monitoring up to sensor
  • Adjustable sensitivity range
  • ATEX, FM and CSA approval
  • Measuring range up to 200 k
  • Alarm relay can also be used as a second point level relay (SPDT)
  • Compact housing for easy series mounting on standard DIN rail in the cabinet
  • Pluggable terminal blocks make wiring easy
  • Connection to different supply voltages
Measuring principle

The Nivotester supplies a small amount of alternating current to the measuring point via the signal line. The cable is connected to the ground probe or the metal vessel and the probe.

The voltage drops if an electrically conductive medium touches the probe. An amplifier circuit in the Nivotester causes the relays to switch.

Measuring Principle Conductive
Characteristic / Application 2-channel level measurement device, level limit, switch delay, two-point control
Supply / Communication 85V ... 253V AC
20V ... 30V AC
20V ... 60V DC
Ambient temperature -20 C ... 60 C
(-4 F ... 140 F)
Min. density of medium min. 10 uS
Communication 2 relays SPDT/DPDT
Certificates / Approvals ATEX, FM, CSA, NEPSI
Safety approvals Overfill prevention WHG

B2B Checkout Options: 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 FTL325N Vibronic Point level switching unit with NAMUR input for rail mounting or single installation in hazardous explosion areas. SIL2 safety approval. ATEX, FM and CSA approvals.



FTC325-A2A31 (231) ENDRESS+HAUSER  FTC325-A2A31

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.




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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