HART Level Sensor
Description of HART level sensor
ULB3351 flange type HART level sensor is one kind of scene transmitter for mounting in pipelines or vessels. Because its isolating diaphragm contacts liquid medium directly, not need pressure pipe to draw out the pressure from positive pressure side (H side). ULB-3351 is suitable for level, pressure, density measurement of high temperature, macro viscosity, easy crystallized, easy precipitated media.
ULB3351 flange type HART level sensor includes plane type and insert type. The mounting flange has 3” and 4” according to ANSI standard.
Features of HART level sensor
▲ Measuring range：0~2.67kPa...2500kPa.
▲ Intrinsic safety and flame proof option.
▲ For level, pressure, density measurement of high temperature, macro viscosity, easy crystallized, easy precipitated or strong corrosive media.
▲ Adjustable range: 6:1 for analog type, 15:1 for intelligent type.
▲ High accuracy, good reliability and stability.
Specifications of HART level sensor
|pressure medium||liquid compatible with stainless steel|
|output signal||4~20mA (HART optional)|
|load resistance||RL=(U-12V)/0.02A (4~20mA current output) U—loop voltage(V)|
|operating temperature range||-40~+85℃|
|measured media temperature range||-40~+200℃|
|temperature coefficient of zero||0.1%FS/10℃|
|temperature coefficient of span||0.05%FS/10℃|
|process connection||3" mounting flange or others|
|explosive-proof||Exia II CT6 or Exd II CT6|
|material of pressure membrane||316L stainless steel|
|oil-filled||silicone oil or fluorocarbon oil|
The ULB3351 flange type HART level sensor is especially suitable for level, pressure and density measurement of special media (high temperature, macro viscosity, easy crystallized, easy precipitated, strong corrosion) in open or sealed containers.