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Measuring principle
Capacitive Liquid
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Characteristic / Application
Transmitter with intrinsically safe signal
Calibrating using operating keys
adjustable operating delay
2-wire PFM
3-wire
Rail mounting:
Wide: 45mm (PFM
)Wide: 22,5 mm
With adjustable hysteresis -
Specialities
Min / Max – changeover
Test/correction key (PFM) -
Supply / Communication
85V … 253V AC
20V … 60V DC -
Ambient temperature
Serial montage
-20 °C … 50 °C
(-4 °F … 122 °F) -
Communication
2 Relays
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Certificates / Approvals
ATEX, IEC Ex, FM, CSA, TIIS
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Safety approvals
Overfill protection WHG
Field of application
The Nivotester FTC325 is a point level switch with intrinsically safe signal circuit for connection to a capacitance sensor. It has a compact housing for easy series mounting on a standard DIN rail in the cabinet.
For point level detection in tanks containing liquids and silos containing bulk solids. Also for capacitance level probes, which may be applied in hazardous areas of category ATEX II (1) GD. Overfill prevention for tanks containing flammable or non-flammable fluids hazardous to water and dry running protection for pumps.
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Two-point control (Δs with 3-WIRE)
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Ambient temperature: -20 to +50°C (-4 to +122°F)
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International explosion protection certificates, overfill prevention WHG
Benefits
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Highest safety due to intrinsically safe signal circuit EEx ia IIC
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Calibration using operating keys
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High functional safety thanks to: FailSafe pulse-frequency modulation (PFM) or 3-wire technology, checkable relay function
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Compact housing for easy series mounting on a standard DIN rail in the cabinet
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Pluggable terminal blocks make wiring easy
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Point level and alarm relay
