Ультразвуковой датчик Ultrasonic Level Sensor LUC-M** Pepperl+Fuchs

Описание товара

Function and system design
Measuring principle		The sensor of the device transmits ultrasonic pulses in the direction of the product surface. There, the ultrasonic pulses are reflected back and received by the sensor. The device measures the time between pulse transmission and reception. The instrument uses the time (and the velocity of sound) to calculate the distance between the sensor membrane and the product surface. As the device knows the empty distance from a user entry, the device calculate the level.
Equipment architecture		4 ... 20 mA output with HART protocol system integration via PROFIBUS PA
Input characteristics
Measured variable		distance between the sensor membrane and the product surface using the linearization function, the device calculate - level in any units - volume in any units - flow across measuring weirs or open channels in any units
Measurement range		LUC-M10: max. 5 m (16.4 ft) in fluids and 2 m (6.6 ft) in bulk materials LUC-M20: max. 8 m (26.2 ft) in fluids and 3,5 m (11.5 ft) in bulk materials LUC-M30: max. 15 m (49.2 ft) in fluids and 7 m (23 ft) in bulk materials LUC-M40: max. 10 m (32.8 ft) in fluids and 5 m (16.4 ft) in bulk materials
Output characteristics
Output signal		according to the instrument version: - 4 ... 20 mA with HART protocol - PROFIBUS PA
Auxiliary energy
Electrical connection		terminal compartment: In the F12 housing, the terminals are located underneath the housing cover, in the T12 housing, they are under the cover of the separate terminal compartment. cable gland: M20x1.5 (recommended cable diameter 6 ... 10 mm (0.24 ... 0.4 inch)) cable entry G1/2 or NPT1/2 PROFIBUS PA: M12 plug connector
Supply voltage		2-wire HART (standard): - current consumption 4 ... 20 mA - min. terminal voltage 14 V (at 4 mA), 8 V (at 20 mA) - max. terminal voltage 36 V 4-wire HART: - DC version: voltage 10.5 ... 32 V, max. load 600 &Omega - AC version: 90 ... 253 V, max. load 600 &Omega PROFIBUS PA: 9 ... 32 V DC for additional information see technical information
Power consumption		2-wire: 51 ... 800 mW 4-wire AC: max. 4 VA 4-wire DC: 0.6 ... 1 W
Current consumption		2-wire devices: - HART: 3.6 ... 22 mA - PROFIBUS PA: max. 13 mA
Measurement accuracy
Reaction time		depends on the parameter settings: - min. 0.5 s for 4-wire devices - min. 2 s for 2-wire devices
Reference operating conditions		temperature = 20 °C (68 °F) pressure = 1013 mbarabs humidity = 50 % ideal reflective surface (e. g. calm, smooth fluid surface) no interference reflections within signal beam set application parameters: - tank shape = flat ceiling - medium property = liquid - process conditions = calm surface
Measured value resolution		LUC-M10, LUC-M20: 1 mm (0.04 inch) LUC-M30, LUC-M40: 2 mm (0.08 inch)
Measuring frequency		2-wire devices: max. 0.5 Hz 4-wire devices: max. 2 Hz dependent on the type of device and the parameter settings
Maximum measured error		typical specifications for reference operating conditions (include linearity, repeatability, and hysteresis): &plusmn 2 mm (0.08 inch) or 0.2% of set measuring range (empty calibration)1) 1) whichever is greater
Operating conditions
Installation conditions		see technical information (TI)
Ambient conditions
	Ambient temperature	-40 ... 80 °C (-40 ... 176 °F) , For further information see technical information.
	Storage temperature	-40 ... 80 °C (-40 ... 176 °F)
	Resistance to alternating temperature cycles	Nb test: +80 °C/- 40 °C (353 K/233 K), 1 K/min, 100 cycles
	Vibration resistance	20 ... 2000 Hz, 1 (m/s2)2/Hz 3 x 100 min
Process conditions
	Process temperature	-40 ... 80 °C (-40 ... 176 °F) (233 ... 353 K), a temperature sensor is integrated in the sensor for correction of the temperature-dependent time-of-flight
	Process pressure (static pressure)	LUC-M10, LUC-M20: 0.7 ... 3 barabs LUC-M30, LUC-M40: 0.7 ... 2.5 barabs
Mechanical specifications
Degree of protection		with closed housing, tested according to - IP68, NEMA 6P (24 h at 1.83 m under water surface) - IP66, NEMA 4X with open housing: IP20, NEMA 1 (also ingress protection of the display)
Mechanical construction
Dimensions		see section dimensions
Mass		LUC-M10: approx. 2.5 kg LUC-M20: approx. 2.6 kg LUC-M30: approx. 3.5 kg LUC-M40: approx. 3 kg
Material		material in contact with process: - LUC-M10, LUC-M20: sensor PVDF, seal EPDM - LUC-M30: sensor UP and stainless steel 1.4571/316Ti, seal EPDM, flange PP or stainless steel 1.4571/316Ti - LUC-M40: sensor PVDF, seal Viton or EPDM, flange PP, PVDF or stainless steel 1.4535/316L housing: aluminum, seawater resistant, chromated, powder-coated cover: - aluminum, for version without on-site display - inspection glass for version with on-site display
Certificates and approvals
Explosion-hazardous area		KEMA 05 ATEX 1111, KEMA 05 ATEX 1112 , for additional certificates see www.pepperl-fuchs.com
Type of protection		II 1/2G or II 2G EEx ia IIC T6 (KEMA 05 ATEX 1111) II 1/2G or II 2G EEx d [ia] IIC T6 (KEMA 05 ATEX 1111) II 1/2G or II 2G EEx em [ia] IIC T6 (KEMA 05 ATEX 1111) II 1/2D or II 2D or II 1/3D or II 3D T115°C or T100°C or T95°C (KEMA 05 ATEX 1111) II 1/2D or II 2D or II 1/3D or II 3D T115°C or T83°C or T84°C or T86°C (KEMA 05 ATEX 1112) II 3G EEx nA II T6

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