3051 series single flange capacitive differential pressure transmitterDetailed product description：

The 3051 series single flange capacitive differential pressure transmitter can accurately measure the liquid level and density of various containers. The transmitter is fixed to the container through a pipeline flange, which is suitable for measuring high temperature, high viscosity, easily precipitated or strongly corrosive media. The liquid level membrane component has both flat and plug-in types; Flange diameter specifications: 3 inches and 4 inches; Pressure rating: 150Ib and 300Ib. Depending on the type of measuring medium, 316 stainless steel, Hastelloy alloy, or tantalum diaphragm can be selected.

Technical parameters
output:
Analog quantity: 2-wire 4-20mADC
Digital quantity: Two wire 4-20mADC and superimposed with process variable digital signals that comply with the HART protocol.
Power supply: Supply voltage 12.5-45VDC
Load limit: The maximum load resistance Rmax of the circuit depends on the supply voltage. HART communication requires a load resistance of no less than 250 Ω and no more than 600 Ω
Communication distance: The maximum communication distance is 1.5Km, and multi station communication can connect up to 15 intelligent transmitters.
Output display: four digit digital display, five digit LCD display, pointer type.
Explosion proof form:
Intrinsic safety type: ExiaII CT5
flameproof type
Zero migration range: Zero can be freely shifted positively or negatively, but the set measurement range and range must not exceed the limit values.
Temperature range: Environmental temperature: -40~85 ℃ (-20~70 ℃ when using LCD indicator)
Measuring medium temperature: -40~104 ℃
Static pressure and unidirectional overpressure range:
150Ib flange: 3.45KPa (absolute pressure)~1.89MPa (37 ℃)
300Ib flange: 3.45KPa (absolute pressure)~4.9MPa (37 ℃)
Relative humidity: 5-98% RH
Start time: 5 seconds to start
Capacity change: less than 0.16cm3
Damping adjustment: Time ranging from 0.20 to 25 seconds
Fault alarm: If there is a fault in the sensor or circuit, the automatic diagnostic function will automatically output 3.9 or 21.0mA configuration protection. To avoid arbitrary changes to the configuration data of the transmitter, the stored data can be locked through software or protective switches.

Performance indicators of 3051 series single flange capacitive differential pressure transmitter

Reference conditions: Zero point is the lower limit and has not migrated, temperature is 25 ℃, atmospheric pressure, 24VDC power supply, silicone oil, isolation diaphragm 316 stainless steel, data setting range is the same as the upper and lower limits of the range.
Accuracy: ± 0.1% of the adjusted range. The adjusted range should not be less than 0.1URL
± [0.05+(0.005URL/range)]% of the adjusted range
The adjusted range is not greater than 0.1URL and not less than 0.025URL
± [0.01+(0.006URL/range)]% of the adjusted range
The adjusted range should not exceed 0.025URL and not be less than 0.01URL
Note: Accuracy indication already includes the effects of linearity, hysteresis, and repeatability.
Stability: ± 0.1% URL/year
Temperature effect: ± (0.05% URL+0.15% range+200Pa)/20 ℃
Static pressure influence: Zero point error is 0.1URL/6.9MPa
Vibration effect: It can withstand vibrations up to 200Hz in any axial direction, causing an error of ± 0.05% URL
Power supply impact: less than 0.005%/V of the adjusted range
Load impact: No load impact
Installation location impact: Approximately 250Pa zero point migration, can be eliminated through calibration, with no range effect.
RF interference impact: Under the conditions of frequency 30-1000MHz and maximum field strength of 10V/m, it causes drift of ± 0.1% of the adjusted range
structural parameters

Material of liquid receiving parts:
Isolation membrane: 316L stainless steel, Hastelloy, Monel or Tantalum.
Exhaust and drain valves: 316 stainless steel, Hastelloy alloy, Monel or Tantalum.
Flanges and transition joints: Carbon steel plated with cadmium, carbon steel plated with zinc, 316 stainless steel, Hastelloy O-ring: Fluororubber
Non liquid contact material:
Filling fluid: Silicone oil
Bolt: Carbon steel galvanized
Electrical casing: low copper aluminum alloy
Cover O-ring: Nitrile rubber
Coating: Polyester epoxy resin
Pressure interface:
High voltage side: ANSI pipe flange 3 "or 4", 150Ib or 300Ib
Low pressure side: 1/4-18NPT thread (transition joint pressure port: 1/2-14NPT thread)
Electrical interface: conduit connection port M20X1.5, 1/2-14NPT thread
Weight: 3.6kg (excluding options)