Vibration limit switch LVL-M2C

• Level limit switch for liquids
• Corrosion resistant coating (HALAR): ideally suited for the process
• Large selection of process connections: universal use
• Wide variety of electronic modules (e. g., relay, thyristor signal output): the right connection for every process control system
• No calibration: quick and low-cost start up
• No mechanically moving parts: maintenance-free, no wear, long operating life
• Monitoring of the vibrating fork for damage: guaranteed function
• PROFIBUS PA Протокол: commissioning and maintenance quick and easy
• до SIL2 acc. to IEC 61508

Application
Function principle		limit detection Maximum or minimum detection in tanks or pipelines containing all types of liquids including use in explosion hazardous areas. Particularly suited to very aggressive liquids thanks to high degree of corrosion protection.
Function and system design
Measuring principle		The forks of the sensors vibrate at their intrinsic frequency. This frequency is reduced when covered with liquid. The change in frequency then activates the limit switch.
Input characteristics
Measured variable		Limit level (limit value)
Measurement range		depends on mounting point and pipe extension до 6000 mm (20 ft)
Auxiliary energy
Supply voltage		electronic insert FEL50A (PA): 9 ... 32 V DC electronic insert FEL51 (AC): 253 V AC, 50/60 Hz electronic insert FEL52 (E5): 10 ... 55 V DC electronic insert FEL54 (WA): 19 ... 253 V AC, 50/60 Hz or 19 ... 55 V DC electronic insert FEL55 (SI): 11 ... 36 V DC, PLC electronic insert FEL56 (N1), FEL58 (N2): isolating amplifier acc. to EN 60947-5-6 (NAMUR)
Потребляемая мощность		electronic insert FEL52 (E5): max. 0.83 W electronic insert FEL54 (WA): max. 1.3 W
Current consumption		electronic insert FEL52 (E5): max. 15 mA
Operating conditions
Ambient conditions
	Ambient temperature	-50 ... 70 °C (223 ... 343 K) , function with reduced data values see section ambient temperature
	Storage temperature	-50 ... 80 °C (223 ... 353 K)
Физические/механические параметры
Стандарты защищенности		полиэстер, steel, and aluminum housing: IP66/IP67
Mechanical construction
Dimensions		housing: diameter max. 85 mm (3.3 in), height max. 173 mm (6.8 in) temperature separator, pressure-tight bushing: additional length L 140 mm (5.5 in) process connection: length L min. 115 (4.5 in) extension: any length L from 148 ... 6000 mm (6 in ... 20 ft) extension: length type II, for vertical installation from above same switching point as Vibracon LVL2 vibration fork: width 20.6 mm (0.81 in), fork width 6.5 mm (0.25 in), length 25 mm (1 in)
Масса		800 g , basic weight: compact version (length type II), electronic insert, plastic housing, without flange, additional weight is dependent on extension tube, housing and process connection
Additional weight		process connection: - A3H 1000 g, A5H 1500 g, A6H 2400 g, A6I 3200 g, A8H 4900 g - H35 1400 g, H65 2400 g, H71 1600 g, H75 3200 g, H95 5900 g, HA3 5600 g - J1H 1700 g length, spacer, bushings: - BK* 900 g/m - CK* 2300 g/100 in - DKA 100 g, DKB 700 g, DKC 800 g
Материал корпуса		wetted parts: - process connection and extension pipe: 1.4435/316L with ECTFE coating - vibration fork: 1.4435/316L with ECTFE coating housings: - полиэстер housing: PBT-FR with PBT-FR cover or with PA12 cover with sight glass, cover seal: EPDM - Нержавеющая сталь housing: 1.4301/304, cover seal: silicone - aluminium housing: EN-AC-AlSi10Mg, plastic-coated, cover seal: EPDM cable gland: polyamide or brass, nickel-plated temperature spacer: 1.4435/316L pressure-tight bushing: 1.4435/316L
Certificates and Сертификаты
Ex approval		KEMA 01 ATEX 1089, KEMA 01 ATEX 1147 X, KEMA 01 ATEX 1148 X, KEMA 01 ATEX 2117, KEMA 01 ATEX 2118 X , for additional certificates see www.pepperl-fuchs.com
Type of protection		II 1/2G EEx ia IIC T3 ... T6 or EEx ia IIB T3 ... T6 and II 1/2D T80°C (KEMA 01 ATEX 1089) II 1G EEx ia IIC T3 ... T6 or EEx ia IIB T3 ... T6 (KEMA 01 ATEX 1147 X) II 1/2G EEx ia IIC T3 ... T6 (KEMA 01 ATEX 1148 X) II 1/2G EEx d IIC T3 ... T6 or EEx d IIB T3 ... T6 (KEMA 01 ATEX 2117) II 1/2G EEx d IIC T3 ... T6 (KEMA 01 ATEX 2118 X) II 3G EEx nA/nC II T6 and II 3D T85°C
SIL classification		до SIL2 acc. to IEC 61508
Overspill protection		Z-65.11-306 (overspill protection in acc. with WHG)

Аксессуары и комплектующие

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