Датчик предельной вибрации Vibration Limit Switch LVL-B1 Pepperl+Fuchs

Описание товара

General specifications
Measuring method		A piezoelectric drive excites the vibrating rod of the device to its resonance frequency. If medium covers the vibrating rod, the rod`s vibrating amplitude changes (the vibration is damped). The electronics of the device compare the actual amplitude with a target value and indicates whether the vibrating rod is vibrating freely or whether it is covered by medium.
Equipment architecture		The measuring system consists of: - the device with electronic insert - a supply point - the connected control systems, switching units, signalling systems (e. g. lamps, horns, PCS, PLC, etc.)
Construction type		compact device
Operating mode		MAX = maximum safety: The device switches if the probe is covered or if the supply voltage is disconnected in a safety-oriented manner (signal on alarm). example application: overspill protection MIN = minimum safety: The device switches if the probe is uncovered or if the supply voltage is disconnected in a safetyoriented manner (signal on alarm). example application: dry-running protection
Supply
Rated voltage		electronic insert FEM22 (E5): 10 ... 45 V DC electronic insert FEM24 (WA): 19 ... 253 V AC, 50/60 Hz or 19 ... 55 V DC
Ripple		electronic insert FEM22 (E5): max. 5 V, 0 ... 400 Hz
Current consumption		electronic insert FEM22 (E5): max. 18 mA
Reverse polarity protection		separation voltage 2.2 kV
Electrical specifications
Surge protection		electronic insert FEM22 (E5) : overvoltage category III
Input
Input signal		probe covered - small amplitude probe not covered - large amplitude
Measured variable		level (according to the mounting location and the overall length)
Measurement range		The measuring range depends on the mounting location of the device
Output
Output signal		digital
Galvanic isolation
Input/Other circuits		electronic insert FEM24 (WA)
Directive conformity
Electromagnetic compatibility
	Directive 2014/30/EU	EN 61326-1:2006 , EN 61326-2-3:2006
Low voltage
	Directive 2014/35/EU	electronic insert FEM24 (WA) : EN 61010-1:2010
Conformity
Electromagnetic compatibility		NE 21
Degree of protection		IEC 60529:2001
Vibration resistance		EN 60068-2-27
Climate class		EN 60068, part 2-38, fig. 2a
Measurement accuracy
Measuring frequency		700 ... 800 Hz
Switching time		when covering the sensor approx. 0.5 s, when uncovering the sensor approx. 1.0 s
Operating conditions
Installation conditions
	Installation position	see section mounting position
Process conditions
	Process temperature	-40 ... 150 °C (-40 ... 302 °F)
	Medium pressure limits	-1 ... 25 bar max. working pressure 25 bar, burst pressure 100 bar
	Thermal shock resistance	max. 120 K
	State of aggregation	solids
	Solid contents	&le &empty25 mm
	Bulk density	&ge 200 g/l, not fluidised
Ambient conditions
Ambient temperature		-40 ... 70 °C (-40 ... 158 °F)
Storage temperature		-40 ... 85 °C (-40 ... 185 °F)
Mechanical specifications
Degree of protection		IP66/IP67, NEMA 4X
Connection		gland M20 thread G1/2, NPT1/2
Material		F16 housing: PTB-FR, cover with transparent glass made of PA12, EPDM cover seal F18 housing: aluminum EN-AC-AlSi10Mg, plastic coated cover seal: EPDM process connections, sensor: stainless steel 1.4435/316L
Mass		device with F16 housing, electronic insert FEM24 (WA) and R1 thread: approx. 1.0 kg
Dimensions		max. &empty85 mm (3.3 inch), length 372 mm (14.6 inch)
Process connection		thread R1, R1-1/2 acc. to DIN 2999 thread 1-1/4 - 11-1/2 NPT, 1-1/2 - 11-1/2 NPT acc. to ANSI B 1.20.1
Data for application in connection with hazardous areas
EC-Type Examination Certificate		KEMA 06 ATEX 0055
	Group, category, type of protection	II 1/3D Ex ta/tc IIIC T170°C Da/Dc
Directive conformity
	Directive 2014/34/EU	EN 60079-0:2012 , EN 60079-31:2009
International approvals
IECEx approval		IECEx DEK 11.0068
	Approved for	Ex ta/tc IIIC T170°C Da/Dc

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