Endress+Hauser nivotester FTL 325 P - User Manual

Technical Information
TI 350F/00/en
Level Limit Switch
nivotester FTL 325 P
With intrinsically safe signal circuit for connection to
the Liquiphant and Soliphant measuring sensor
Applications
• Level limit detection in liquid tanks and
bulk material silos, also in hazardous
explosion areas
• For Zone 0 or Zone 20 measuring
sensors
• Liquid detection in pipes for dry
running protection for pumps
• Overspill protection for tanks with
combustible or non-combustible
liquids harmful to water
• Two-point control and level limit
detection with one switching instrument
• Application in safety related systems
with requirements for functional safety
up to SIL3 in accordance to IEC 61508
when using Liquiphant M/S with
electronic insert FEL 57
Benefits at a glance
• Intrinsically safe signal circuits [EEx ia]
for problem-free use of measuring
sensor in explosion hazardous areas
• Highest functional SIL safety (see also
Safety Manual SD 111) through:
– fault-free PFM technology
– line monitoring through to sensor
– corrosion monitoring on tuning fork of
Liquiphant M measuring sensor
• Compact housing for simple series
installation on standard rails in switch
cabinet
• Simple wiring using pluggable terminal
blocks
• Simple iterative test acc. to WHG by
connecting a Liquiphant M and S (high
temperature): one-touch operation
• High test depth: from isolating amplifier
through to measuring sensor

Endress+Hauser nivotester FTL 325 P Specifications