Nivotester FTL325N

Level indicator with NAMUR input for connection of any NAMUR sensor

General Information
Input / Output
Electrical Data
Mechanical Data
Certification / Approvals
Additional Information


  • Input: NAMUR
  • Output: Up to 3x SPDT + 1x SPST relays
  • Number of channels: Up to 3 channels
  • Configuration via DIP switches
  • Approvals: Ex-area, WHG, SIL

Fields of application

  • Liquid manure level indicator
  • Level indicator with NAMUR input for top hat rail mounting or individual installation


The Endress+Hauser Nivotester FTL325N is an isolating switching amplifier and is used for level detection in liquid tanks and also in hazardous areas. It is suitable for overfill protection in tanks with flammable or non-flammable liquids hazardous to water. Two-point control and limit level detection. Perfect for applications in safety systems with functional safety requirements up to SIL2 according to IEC 61508 / IEC 61511 when using the Liquiphant with oscillator FEL56 or FEL58.

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What do our customers say

Somya Gupta

The conversation was highly helpful to me. I want to know about the suitable sensors that can be used for level measurements for conical tank systems. Mr. Pedro has quickly responded and explained in very ease way. It was nice interacting with him.

Questions & Answers

I have 2 tanks. 3500 litres on top of a 4500 liter tank. I want to control the pump that fills the top tank from the bottom tank. When the top tank is full the pump should switch off and when water goes down to a certain level maybe 20% full the pump should switch on and fill the tank. Also we should monitor the level in the bottom tank such that when water is too low the pump does not try and pump to the upper tank. Thanks (0 answers)
by James Muhoro, 6 months ago
Nivotester FTL325N
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What do our customers say

Valentine Godin

Great product and customer care! Reliable, fast and honest... I have recently purchased 2 pieces of equipments; their service has been spot on from start to finish, understanding my needs, providing useful advice and rapid assistance when it was required! Highly satisfied, I highly recommend their teams and would definitely work with them again in the future!

Product Details