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Ultrasonic Level Sensor LUC-M20

LUC-M20
  • Device for non-contact level measurement
  • Measuring range up to 8 m in fluids
  • Measuring range up to 3.5 m in bulk materials
  • Quick and simple commissioning via menu-guided onsite operation with four-line display
  • Optional remote display and operation (up to 20 m from transmitter)
  • Integrated temperature sensor for automatic correction of the temperature dependent sound velocity

Please note: All product-related documents, such as certificates, declarations of conformity, etc., which were issued prior to the conversion under the name Pepperl+Fuchs GmbH or Pepperl+Fuchs AG, also apply to Pepperl+Fuchs SE.

Scarica il Datasheet completo in formato PDF:


Estratto del Datasheet: Dati tecnici del  LUC-M20

General specifications
Measuring methodThe 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 architecture4 ... 20 mA output with HART protocol
system integration via PROFIBUS PA
Construction typecompact device
SeriesLUC-M20
Supply
Connectionterminal 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
Rated voltage2-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 Ω
- AC version: 90 ... 253 V, max. load 600 Ω
PROFIBUS PA: 9 ... 32 V DC
for additional information see technical information
RippleHART: 47 ... 125 Hz , Upp = 200 mV (measured at 500 Ω)
NoiseHART: 0.5 ... 10 kHz , Urms = 2.2 mV (measured at 500 Ω)
Current consumption2-wire devices:
- HART: 3.6 ... 22 mA
- PROFIBUS PA: max. 13 mA
Power consumption2-wire: 51 ... 800 mW
4-wire AC: max. 4 VA
4-wire DC: 330 ... 830 mW
Input
Measured variabledistance 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 rangemax. 8 m (26.2 foot) in fluids
max. 3.5 m (11.5 foot) in bulk materials
Operating frequencyapprox. 50 kHz
Blocking distance0.35 m
Output
Loadmin. 250 Ω for HART communication
LinearityThe linearization function of the device allows conversion of the measured value into any unit of length or volume. In open channels or measuring weirs, also a flow linearization is possible (calculation of the flow from the measured level).
Output signalaccording to the instrument version:
- 4 ... 20 mA with HART protocol
- PROFIBUS PA
Output damping0 ... 255 s , freely selectable
Signal on alarmerror information can be accessed via the following interfaces:
- on-site display (error symbol, error code and plain text description)
- current output (configurable)
- digital interface
Galvanic isolation
Output/power supplyat 4-wire devices with evaluation electronics and mains voltage
Directive conformity
Electromagnetic compatibility
Directive 2014/30/EUEN 61326-1:2006 , EN 61326-2-3:2006 , EN 61326-2-5:2006
Low voltage
Directive 2014/35/EUEN 61010-1:2001
Conformity
Electromagnetic compatibilityNE 21
Degree of protectionIEC 60529:2001
Vibration resistanceEN 60068-2-64
Climate classEN 60068-2-38 (test Z/AD) DIN/IEC 68 T2-30Db
Resistance to alternating temperature cyclesEN 60068-2-14
Measurement accuracy
Reaction timedepends on the parameter settings:
- min. 0.5 s for 4-wire devices
- min. 2 s for 2-wire devices
Reference operating conditionstemperature = 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 resolution1 mm
Measuring frequency2-wire devices: max. 0.5 Hz
4-wire devices: max. 2 Hz
dependent on the type of device and the parameter settings
Maximum measured errortypical specifications for reference operating conditions (include linearity, repeatability, and hysteresis):
± 2 mm (0.08 inch) or 0.2% of set measuring range (empty calibration)1)
1)
whichever is greater
Operating conditions
Installation conditionssee technical information (TI)
Ambient conditions
Resistance to alternating temperature cyclesNb test: +80 °C/- 40 °C (353 K/233 K), 1 K/min, 100 cycles
Vibration resistance20 ... 2000 Hz, 1 (m/s2)2/Hz; 3 x 100 min
Process conditions
Process temperature-40 ... 80 °C (-40 ... 176 °F)
Process pressure (static pressure)0.7 ... 3 bar (10.2 ... 43.5 psi) , absolute pressure
Ambient conditions
Ambient temperature-40 ... 80 °C (-40 ... 176 °F)
see technical information (TI)
Storage temperature-40 ... 80 °C (-40 ... 176 °F)
Mechanical specifications
Degree of protectionwith 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)
Connectioncable gland M20x1.5
cable gland NPT1/2
cable gland G1/2
PROFIBUS PA plug M12x1
Materialmaterial in contact with process: sensor PVDF, seal EPDM
housing: aluminum, seawater resistant, chromated, powder-coated
cover:
- aluminum, for version without on-site display
- inspection glass for version with on-site display
Mass2.6 kg
Dimensionssee section dimensions
Process connection- cylindrical thread G1-1/2B, G2B to DIN/ISO 228/1
- conical thread NPT1-1/2, NPT2 to ANSI B 1.20.1
- flanges to EN 1092-1 from DN80, to ANSI B 16.5 from 3 inch, to JIS B 2238 (RF) from DN80
- mounting bracket LUC-Z17
Data for application in connection with hazardous areas
EU-type examination certificatesee instruction manuals (SI)
Directive conformity
Directive 2014/34/EUEN 60079-0:2006 , EN 60079-1:2004 , EN 60079-7:2003 , EN 60079-11:2007 , EN 60079-18:2005 , EN 60079-26:2004 , EN 60079-27:2007 , EN 61241-0:2006 , EN 61241-1:2004+C11:2006
Mechanical construction
Construction typehousing design:
- F12 housing with sealed terminal compartment for standard or EEx ia applications
- T12 housing with separate terminal compartment and flameproof encapsulation
cover:
- version without on-site display
- version with on-site display (transparent cover), this version cannot be supplied together with the ATEX II 1/2D certificate
Indication and operation
Display elementsdisplay and operating module LUC-Z15 at the device
Control elementson-site operation:
- via 3 keys of the display and operating module
- via handheld terminal
remote control:
- operation with operating program (for communication variants HART or PROFIBUS-PA)
General information
Supplementary documentationtechnical information (TI)
manuals, brief instructions (BA, KA)
instruction manuals (SI)
control drawings (ZD)
Supplementary informationObserve the certificates, declarations of conformity, instruction manuals, and manuals where applicable. For information see www.pepperl-fuchs.com.
Accessories
Designation- LUC-Z19, mounting bracket
- LUC-Z2*, cantilever
- LUC-Z3*, mounting frame
- LUC-Z5*, wall bracket
- LUC-Z-A**N**, adapter flange with conical thread
- LUC-Z-F**G**, adapter flange with metrical thread
- LUC-Z15, display and operating module for on-site operation
- LUC-Z16, weather protection cover
- LUC-Z40-**1*, remote display and operation

Classifications

SystemClasscode
ECLASS 13.027200506
ECLASS 12.027200506
ECLASS 11.027200506
ECLASS 10.0.127200506
ECLASS 9.027200506
ECLASS 8.027200506
ECLASS 5.127200506
ETIM 9.0EC003001
ETIM 8.0EC003001
ETIM 7.0EC003001
ETIM 6.0EC003001
ETIM 5.0EC001447
UNSPSC 12.141111950

Details: LUC-M20

Software: LUC-M20

Language Selection:
Device Description Files/Driversinformazioni sulla liberatoriaFile tipoDimensioni
GSD file / GSD-DateiZIP3 KB

Prodotti associati : LUC-M20

Accessories
Universal DTM host platform, For all DTMs of Pepperl+Fuchs, Approved FDT/DTM technology, Free of charge, Download from Pepperl+Fuchs websitepa
Device DTM, For level devices, Frame application, like e. g. PACTware, must be installed separatelypa