Print

Sentinel LNG - Ultrasonic Flow Meter for Cryogenic Liquids

Sentinel LNG - Ultrasonic Flow Meter for Cryogenic Liquids

Sentinel LNG extends the use of ultrasonic technology into cryogenic applications. Like the Sentinel LCT, it has no moving parts and uses four-path Robust Path Configuration™. Sentinel LNG uses Bundle Waveguide Technology™ to direct greater tranducer signals into the process while protecting the transducers from cryogenic temperatures.

 

 

 

Sentinel LNG Features

 

 

 

  • Bundle wave guide Technology™
  • All stainless steel, fully welded construction with no moving parts
  • Full bore design, no pressure drop
  • Robust Path Configuration™
  • Liquefied Natural Gas (LNG)
    Cryogenic fluid allocation
    Custody transfer
    Marine Cargo Verification

Performance

Fluid Types Liquid hydrocarbons
Flow Measurement Correlation transit time mode
Accuracy < ± 0.25% of measured volume for flow rates between 2 and 30 ft/s (0.5 and 10 m/s)
Repeatability <±0.02%
Zero Stability < 0.007 ft/s (0.002 m/s)
Process Temperature -200° to +120°C (-328° to 248°F)
Ambient Temperature -40° to +60°C (-40° to 140°F)
Storage Temperature -40° to +80°C (-40° to +176°F)

Meter Body

Path Configuration Four-path Robust Path Configuration™
Meter Body Materials Stainless steel A182, Gr 304/304L
Stainless steel A182, Gr 316/316L
Others on request.
Pipe Sizes 4 in (100 mm) to 36 in (900 mm)
Others on request.
Flange Ratings 150 #
300 #
Others on request
Pipe Schedules 10S
40S
STD
Others on request.
PED Compliance PED Cat III, module H
Installation Requirement Meter must be installed with 20D straight piping upstream and 5D straight piping downstream. Inlet and outlet piping ID must meet meter ID.
Pressure, temperature and density connections must be located in the downstream piping. The 20D upstream piping must be free of any nozzles that could disturb the flow profile.

Electronics

Electronics Enclosure Material Epoxy coated aluminium
Dimensions Weight 25 lb (11.5 kg)
Size (lxhxd): 13 x11x 9 in (33x27x23 cm)
Environmental Protection IP66
Power Supply 100 to 240 VAC
12 to 32 VDC
Power Consumption < 20 watt
Display High contrast 128 x 64 pixel graphical display with LED illumination
Outputs Two frequency/pulse outputs optically isolated from DC
Two alarm relays
One 4/20 mA output with HART
Inputs Two 4/20 mA and one 100 ohm RTD input for density, pressure and temperature input (option). Three 4/20 mA inputs for density, pressure and temperature input (option).
Digital Interfaces HART over 4/20 mA output
PanaLink over RS232/485/USB
Modbus over RS232/485 (option)
Hazardous Area Certifications USA/Canada: Class 1, Div 1, groups B, C, & D
Europe: ATEX II 2 G, Ex de IIC (Ex d IIC as option)
IEC Ex: Ex de IIC (Ex d IIC as option)
CE Compliance 2004/108/EC EMC Directive
2006/95/EC LVD
Flow Computer Functionality Integrated flow computer with full P and T volume corrections according to API 11.1

lng-1

lng-2

lng-3


Descriptions English
PanaView for Sentinel Operating Manual PanaView for Sentinel Operating Manual
Sentinel - Panametrics Custody Transfer Gas Ultrasonic Flowmeter Sentinel - Panametrics Custody Transfer Gas Ultrasonic Flowmeter
Sentinel LNG Operating Manual Sentinel LNG Operating Manual
Sentinel Operating Manual Sentinel Operating Manual


acrobat-reader