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Capacitive sensor

RFnivo^® - RF 8100

Point level measurement, Interface level measurement
Liquids
DK value ≥ 1,5

Application area

The capacitive level detector RFnivo^® RF 8100 is used in storage and process vessels as a full, demand and empty detector in all liquids from a DK value of 1.5. It can generally be used at process temperatures up to +200°C and process overpressure up to 35 bar. Its "Active Shield" function ensures reliable functionality within applications with adhering material.

Your benefit

Reliable measurement results even with viscous, adhesive medium due to "Active Shield" technology
"Inverse Frequency Shift" technology ensures precise measurement results
Maintenance-free sensor

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Technical Data

More Information
Measurement principle	Capacitive
Measuring task	Point level measurement Interface level measurement
Versions	Rod version Rope version
Medium	Liquids
Mounting position	top horizontal angled (in the cone) on a socket
Ambient temperature	-40°C … 85°C (-40°F … 185°F)
Process temperature	-40°C ... +200°C (-40°F … +392°F)
Process pressure	-1 bar … +35 bar (-14.5 psi … +511 psi)
Minimum sensitivity	DK ≥ 1.5
Housing type	flameproof
Housing material	Aluminum
Housing protection rating	IP68, Type 4
Threaded connection	≥ G 3/4" ≥ R 3/4" ≥ NPT 3/4"
Flange connection	≥ DN25 ≥ 1"
Hygienic fittings	---
Wetted materials	Stainless steel 1.4404 (316L) PEEK FKM FFKM PFA
Accuracy	---
Mechanical load	rod: 15 Nm
Min. immersion length	rod: 455 mm (17.91") rope: 605 mm (23.82")
Max. immersion length	rod: 1,4 m (4.71') rope: 25,4 m (83.4')
Power supply	universal voltage (12...250V DC / AC) 12...30V DC
Signal output	Relay SPDT Transistor Profibus PA
Approvals	CE General purpose ATEX INMETRO FM CSA
Explosion protection	Dust Ignitionproof (Ex t) Intrinsic Safe (Ex i) Explosionproof/ Flameproof (Ex d)
Hygienic / Pharma	---
Ship approval	Lloyd's
Overfill protection	WHG
SIL qualification	---
Further approvals	---
Adjustment possibility	DIP switches + potentiometer LCD Display with push buttons PACTware (DTM)
Optical indicator	LED + Display
Features	adjustable sensitivity adjustable output delay adjustable switching point adjustable hysteresis switchable logic (Fail Safe High - Fail Safe Low)

Certificates

ATEX Ex-d, Ex-t

European approval for use in explosive Environments (ATmosphère EXplosible)

ATEX Ex-i

European approval for use in explosive Environments (ATmosphère EXplosible)

CE

European manufacturer approval for use in non-explosive Environments (European community)

CSA Ex

Canadian approval for use in explosive and non-explosive Environments (Canadian Standards Association)

CSA GP (SELV)

Canadian approval for use in explosive and non-explosive Environments (Canadian Standards Association)

FDA, EC 1935 / 2004

FM Ex

North American approval for use in explosive and non-explosive Environments (Factory Mutual)

FM General purpose

North American approval for use in non-explosive Environments (Factory Mutual)

INMETRO Ex-d, Ex-t

Brazilian approval for use in explosive Environments (Instituto Nacional de Metrologia, Normalização E Qualidade Industrial)

INMETRO Ex-i

Brazilian approval for use in explosive Environments (Instituto Nacional de Metrologia, Normalização E Qualidade Industrial)

Lloyds

Approval for use in marine, offshore and industrial applications

Profibus Digital Electronic

Certification issued by the german Profibus Nutzerorganisation e.V. Framework for testing and certification of PROFIBUS and PROFINET products

TR-CU / EAC-Ex