ファクトリーオートメーション(FA)
プロセスオートメーション(PA)

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This product has been replaced.Go to replacement product LVL-A7-BG1A-E5V1-CG-EMS
Not available for purchase
Not available for purchase

Vibration Limit Switch LVL-A5-G1S-E5V1-WH-EMS

LVL-A5-G1S-E5V1-WH-EMS
  • Level limit switch for liquids
  • Process connection G1/2
  • Rugged stainless steel housing
  • External test option using test magnet
  • Highly visible status LEDs

注: Pepperl+Fuchs GmbH(旧社名)で発行された証明書・適合宣言書などすべての製品関連文書は、Pepperl+Fuchs AG(新社名)にそのまま適用されます。

データシート(PDF):


技術データ  LVL-A5-G1S-E5V1-WH-EMS

型番
Vibration Limit Switch
Application
Function principleThe tuning fork is brought to its resonance frequency by means of a piezoelectric drive. If the tuning fork is covered by liquid, this frequency changes. The electronics monitor the resonance frequency and indicate whether the tuning fork is freely vibrating or is covered by liquid.
Input characteristics
Measured variabledensity
Measurement rangemin. 0.7 g/cm3, other density (e. g. 0.5 g/cm3) settings on request
Output characteristics
Fail-safe modeminimum/maximum closed circuit safety
The limit switch can be connected in two operating modes, depending on the operating mode selected (MAX or MIN safety). The limit switch will switch off safely in the event of a fault (e. g. if the power supply line is interrupted).
MAX = maximum safety:
The device keeps the electronic switch closed as long as the fluid level is below the fork.
example application: overspill protection

MIN = minimum safety:
The device keeps the electronic switch closed as long as the fork is immersed in fluid.
example application: dry running protection of pumps

The electronic switch opens if the limit is reached, if a fault occurs or in the event of a power failure.
Auxiliary energy
Electrical connectionThis device may be used with any sequential circuit, as long as the circuit can support the electrical circuit values of the switching elements.
M12 x 1 connector
Supply voltage10 ... 35 V DC
Power consumption< 825 mW
Current consumption< 15 mA
Residual ripple5 V ss at 0 ... 400 Hz
Measurement accuracy
Reference operating conditionsambient temperature: 23 °C (296 K), process pressure: 1 bar, medium: water, medium density: 1,
medium temperature: 23 °C (296 K), installation from above/vertical, density setting: > 0.7 g/cm3
Measured value resolution< 0.5 mm
Measuring frequencyapprox. 1100 Hz in air
Maximum measured error13 mm ± 1 mm
Non-repeatability± 0.5 mm
Hysteresis3 mm ± 0.5 mm
Influence of ambient temperaturenegligible
Influence of medium temperature-29.6 x 10-3 mm/K
Influence of medium pressure-55.2 x 10-3 mm/bar
Switching timewhen covering the sensor approx. 0.5 s, when uncovering the sensor approx. 1.0 s
other switching times on request
Settling time< 2 s
Operating conditions
Installation conditions
Installation positionsee section mounting position
Ambient conditions
Ambient temperature-40 ... 70 °C (-40 ... 158 °F)
Ambient temperature limitsderating from 90 °C (363 K) process temperature: reduction to max. 50 °C (323 K) ambient
derating from 90 °C (363 K) process temperature: reduction to max. 150 mA relay switching capacity
Storage temperature-40 ... 85 °C (-40 ... 185 °F)
Overvoltage protectedovervoltage category III
Process conditions
Medium temperature-40 ... 150 °C (-40 ... 302 °F) , see ambient temperature limits
Process pressure (static pressure)-1 ... 40 bar (-14.5 ... 580.2 psi)
State of aggregationliquid
Densitymin. 0.7 g/cm3 , other density setting on request
Viscositymax. 10000 mm2/s (10000 cSt)
Gas contentstagnant mineral water
Mechanical specifications
Degree of protectionIP66 / IP67
Mechanical construction
Mass270 g
Materialvibration fork, process connection and housing: stainless steel 1.4435/316L
connection: PSU
Surface qualityRa < 3.2 µm/80 grit
Process connectionthread G1/2 to ISO 228
Stainless steel 1.4435 / AISI 316L
Electrical connection4-pin, M12 x 1 connector
Indication and operation
Display elementsThe LED display is on the connection side.
green LED: indication of ready to operate
red LED: fault indication, mode indication
Function testfunction test with test magnet:
Put the testing magnet to the mark of nameplate. On testing, the current state of the electronic switch is reversed
Certificates and approvals
ApplicationThe general authorization by the board of suveyors must be obtained for the site of installation.
It is accessible together with the technical description and the certificate from Pepperl+Fuchs.
Overspill protectionZ-65.11-314 (overspill protection acc. to WHG)
Z-65.40-315 (leak detection system acc. to WHG)
General information
Directive conformity
Directive 89/336/EEC (EMC)emitted interference to EN 61326, class B equipment
noise immunity to EN 61326, annex A (industrial sector)
Conformity
Electromagnetic compatibilityNE 21
Degree of protectionEN 60529
Vibration resistanceEN 60068-2-64
Shock and impact resistanceEN 60068-2-27 , 30 g
Supplementary documentationsee www.pepperl-fuchs.com
Supplementary informationStatement of Conformity, Declaration of Conformity, Attestation of Conformity and instructions have to be observed where applicable. For information see www.pepperl-fuchs.com.

Classifications

SystemClasscode
ECLASS 11.027200518
ECLASS 10.0.127200518
ECLASS 9.027200589
ECLASS 8.027200589
ECLASS 5.127200589
ETIM 8.0EC001447
ETIM 7.0EC001447
ETIM 6.0EC001447
ETIM 5.0EC001447