Guided Microwave LTC*

• Measurement independent of density, temperature, and dust
• Measurement also possible with foam on the surface
• Simple, menu-guided on-site operation with four-line plain text display
• On-site envelope curve on the display for easy diagnosis
• Easy operation, diagnosis and measuring point documentation with the supplied operating program
• Optional remote display and operation
• With coax probes the measurement is completely independent of internals in the tank and of the installation in the nozzle
• до SIL2 acc. to IEC 61508

Application
Function principle		The Pulscon LTC is a transmitter for continuous level measurement in powdery to granular bulk solids and liquids. The distance from the reference point (process connection of the measuring device) to the product surface is measured. High-frequency pulses are injected to a probe and led along the probe. The pulses are reflected by the product surface, received by the electronic evaluation unit and converted into level information.
Function and system design
Measuring principle		The device is a measuring system that functions according to the time-of-flight method. The distance from the reference point (process connection of the measuring device) to the product surface is measured.
Equipment architecture		The Pulscon LTC is usable as single measuring cell or integrated in PROFIBUS PA systems.
Input characteristics
Measured variable		distance between a reference point and a reflective surface (e. g. medium surface)
Measurement range		max. 35 m (115 ft), dependent on the medium, the probe type and the probe length - rod probe 6 mm: 0.3 ... 2 m (1 ... 6.6 ft) - rod probe 16 mm/coax probe: 0.3 ... 4 m (1 ... 13.2 ft) - rope probe: 1 ... 35 m (3 ... 115 ft) for details see technical information
Output characteristics
Output signal		4 ... 20 mA with HART Протокол PROFIBUS PA
Auxiliary energy
Electrical connection		connection IH: 4 ... 20 mA with HART, 2-wire connection AH: 4 ... 20 mA with HART, 4-wire active, AC version connection DH: 4 ... 20 mA with HART, 4-wire active, DC versionconnection PA: PROFIBUS PA
Supply voltage		connection IH: 7.5 ... 36 V DC- Ex version: 7.5 ... 30 V DC connection AH: 90 ... 253 V AC connection DH: 10.5 ... 32 V DC
Потребляемая мощность		60 ... 900 mW
Current consumption		connection AH: приблизительно 3 ... 6 mA connection DH: приблизительно 100 mA connection PA: max. 11 mA
Operating conditions
Ambient conditions
	Ambient temperature	-40 ... 80 °C (-40 ... 176 °F) , for details see technical information
	Storage temperature	-40 ... 80 °C (-40 ... 176 °F)
Физические/механические параметры
Стандарты защищенности		with closed housing tested according to - IP68, NEMA 6P (24 h at 1.83 m (72 in) under water) - IP66, NEMA 4X with open housing: IP20, NEMA 1 (also degree of protection of display) Caution! Degree of protection IP68/NEMA 6P applies for M12 PROFIBUS PA plugs only when the PROFIBUS cable is plugged in.
Mechanical construction
Dimensions		housing: - housing F12: 174 x 150 x 143 mm (6.8 x 6 x 5.6 in) - housing T12: 194 x 162 x 143 mm (7.6 x 6.4 x 5.6 in) distance sleeve: diameter 60 mm (2.36 in), height 400 mm (15.7 in) remote electronic: length 3000 mm (9.9 ft) process connections: length 61 ... 281.6 mm (2.4 ... 11.1 in) probes: - 4 mm (0.16 in) and 6 mm (0.24 in) rope probe: length 1000 ... 35000 mm (3 ... 115 ft) - 6 mm (0.24 in) rod probe: length 300 ... 2000 mm (1 ... 6.6 ft) - 16 mm (0.6 in) rod probe: length 300 ... 4000 mm (1 ... 13.2 ft) - coax probe: diameter 42.4 mm (1.67 in), length 300 ... 4000 mm (1 ... 13.2 ft) see section dimensions
Масса		housing F12 or T12: приблизительно 4000 g 4 mm (0.16 in) rope probe: приблизительно 100 g/m 6 mm (0.24 in) rod or rope probe: приблизительно 200 g/m 16 mm (0.63 in) rod probe: приблизительно 1600 g/m coax probe: приблизительно 3500 g/m process connections: depending on the design
Материал корпуса		housing: aluminium (AISi10Mg), seawater resistant, chromed, powder-coated transparent window: glass process connection: 1.4435/316L rope: 1.4401/316 rod and coax pipe: 1.4435/316L weight: 1.4435/316L
Certificates and Сертификаты
Ex approval		KEMA 02 ATEX 1254 , for additional certificates see www.pepperl-fuchs.com
Type of protection		II 2G EEx em [ia] IIC T6 II 1/2G II EEx ia IIC T6 with WHG II 1/2G EEx d [ia] IIC T6 II 1/2G, II 1/3D EEx ia IIC T6 II 1/2G, II 1/3D EEx ia IIC T6 with WHG II 1/2G EEx ia IIC T6 II 1/3D transparent cover, dust-Ex II 1/2D aluminium cover, dust-Ex
SIL classification		до SIL2 acc. to IEC 61508, for 4 ... 20 mA output
Overspill protection		Z-65.16-368 (overspill protection in acc. with WHG)
Telecommunications		Complies with part 15 of the FCC rules for an unintentional radiator. All probes meet the requirements for a class A digital device (commercial, industrial or business environment). Coax probes and probes mounted in closed metallic vessels also meet the requirement for a class B digital device (residential environment).

Аксессуары и комплектующие

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