244LD propane tank level monitor

244LD propane tank level monitor   Product Description   Summary  244LD intelligent displacer level (interface) level meter is designed based on Archimedes Buoyancy Principle. It can be used for measuring liquid level, interface and density. The latest model of FDT/DTM technology can provide online calibration and diagnosis, durable in use. A wide range of material selection is suitable for different medium environment. 244LD intelligent displacer level (interface) transmitter in extreme temperature and pressure conditions can be reliable work. This Transmitter is available for any dangerous application. 244LD intelligent displacer level (interface) transmitter is manufactured by Dandong Top Electronics Instrument (Group) Co. Ltd and FOXBORO, The transmitting head and other important parts are original products supplied by FOXBORO, the finished products are as per the original factory standard (FOXBORO).     Operating Principle   The buoyancy of displacer 4 is transmitted to the sensor 3 via lever 1 and the torque tube 2. In measuring range, the voltage is proportional to the buoyancy, and as the input signal is transmitted to the electronic amplifier. Through the electronic amplifier, voltage is converted to 4-20 mA two-wires output signal. In the two-wires system mode, amplifier is powered by the signal current circuit. Any part of the displacer immersed in liquid is adhering to the principle of Archimedes. By measuring buoyancy change of cylindrical displacer suspended in liquid, you can measure the liquid level, interface level or density. When measuring the density and interface level, the displacer should be completely immersed in liquid. The change of the liquid level must be in range area. The calculation of buoyancy: FA= VX·ρ1·g+( V -VX) ·ρ2·g In the formula:FA:Buoyancy V:The volume of the displacer VX:In the liquid density of ρ1, the medium volume displacer swaps out ρ1:The average of the heavy medium density ρ2:The average of the lighter medium density g:The local acceleration of gravity FG:Buoy its own gravity    Technical features

nominal pressure	≤42.0MPa
nominal diameter	DN40 or as customers’ request
ambient temperature	-40°C~+85°C
operating temperature	-196°C~+500°C
accuracy rating	0.2class
load resistance	(Power supply -12V)/0.02A
LED display	Five digits can be configured to %,mA or other physical unit
Medium boundary density difference	≥0.08g/cm3
Torque tube material	standard configuration Inconel600,or Monel,HasetlloyC-276
chamber material	carbon steel,304,316L or as customers’ request
displacer material	304,316L or as customers’ request
Flange standard	HG/T20592-2009,HG/T20615-2009 or as customers’ request
cable entry	Two NPT1/2(internal thread) or as customers’ request
explosion-proof	Intrinsically safe ExiaⅡCT4
protection class	IP66

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