Характеристики и описание
Function and system design | |
|---|---|
| Measuring principle | Или отправьте нам запрос наansmits 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 linearizatИли отправьте нам запрос наlculate - 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 ? - AC version: 90 ... 253 V, max. load 600 ? 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 |
| 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): ± 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 | |
| Process conditions | |
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 |
Function and system design
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