FB3351AP type absolute pressure transmitter | FB3351AP pressure transmitter

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Capacitive pressure transmitter

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FB3351AP type absolute pressure transmitter | FB3351AP pressure transmitter | FB3351AP

★ Overview FB3351 Intelligent Pressure Transmitter is a multifunctional digital intelligent transmitter developed by our company through the introduct

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★ Overview

FB3351 intelligent pressure transmitter is a multifunctional digital intelligent transmitter developed by our company by introducing advanced foreign technology and equipment. Its key raw materials and components are all imported, with advanced design principles, complete varieties and specifications, and easy installation and use. The appearance of this model combines the characteristics of the widely used 3051 and EJA in China, making it unparalleled in forward and backward compatibility, which can avoid waste caused by outdated or advanced products and protect your investment. The FB3351 series pressure/differential pressure transmitter is suitable for various occasions and media in industrial measurement, and is an ideal pressure measuring instrument in the field of industrial automation.

★ Scope of application

The FB3351 intelligent pressure transmitter is suitable for accurately measuring micro differential pressure to large differential pressure, low pressure to high pressure, liquid level, vacuum degree, and specific gravity; Combined with a throttling device, flow can also be measured.

★ Features

High precision;	Good stability;
Intelligent HART fieldbus protocol;	※ Small, lightweight, sturdy and vibration resistant;
※ Range and zero point can be continuously adjusted externally;	※ Adjustable damping;
Good one-way overload protection characteristics;	※ No mechanical movable parts, low maintenance workload;
The entire series has a unified structure and strong interchangeability of components;	Explosion proof structure, all-weather use；
The membrane material that comes into contact with the medium can be selected; The membrane can be made of corrosion-resistant materials such as 316L, TAN, HAS-C, MONEL, etc;

★ Technical parameters

※technical indicators
● Target audience	Liquid, gas or vapor
● Measurement range	gauge pressure	0-0.13 kPa to 0-41370 kPa
	differential pressure	0-0.125 kPa to 0-6890 kPa
	absolute pressure	0-6.8 kPa to 0-6890 kPa
	negative pressure	-0.2~0 kPa to -100~41370 kPa
● Output	4～20mADC， Intelligent HART fieldbus protocol signal output
● Power supply	12～45VDC， The general working power supply is 24VDC

Positive and negative transfer	Regardless of the output, after positive and negative migration, the upper and lower limits of the range must not exceed the limit of the range Maximum migration amount: 500% of the minimum calibration range Maximum negative transfer: 600% of the minimum calibration range
● Temperature range	The working temperature of conventional transmitters is -25 ℃ to+70 ℃; Equipped with on-site indicator table -15 ℃~+70 ℃ Storage temperature: -40 ℃ to+100 ℃ Amplifier operating temperature range (ambient temperature): -29 ℃~+93 ℃ (LT type: -30 ℃~+70 ℃) Working temperature of silicone oil filled measuring element (LT type medium temperature): -40 ℃ to+149 ℃ When filling high-temperature silicone oil into remote transmitters: -15~+315 ℃, ordinary silicone oil: -40~+149 ℃
● Humidity range	Relative humidity is 1-100%
● Sensor volume change	Less than 0.16cm³
● Indicator table	On site digital display
Explosion proof type	Explosion proof Exd Ⅱ CT6; Intrinsic safety Exia Ⅱ CT6
● Range and zero point	External continuous adjustable
● Overpressure limit	Application range below 6MPa: 0 (absolute pressure) to 14MPa; Application range of 20MPa: 0 (absolute pressure) to 32MPa; Application range of 42MPa: 0 (absolute pressure) to 52MPa; The transmitter is undamaged, and the flange can support 60Mpa
● Damping	Continuously adjustable between 0.2 and 16 seconds
● Start time	2 seconds, no preheating required
● Vibration impact	In any axial direction, with a frequency of 200Hz, the error caused is less than ± 0.05% of the maximum range, and the range code 2 (micro differential pressure) is ± 0.25%
● Power supply impact	Less than 0.005%/V of the output range
● Load impact	When the power supply is stable, there is no load impact
● Installation location impact	The maximum zero point error that can be generated is 0.24 kPa, but it can be calibrated and has no impact on the measurement range
● Accuracy	See the table below

Model and name	measurement range	precision	stability
3351DP Low, medium, and high differential pressure transmitter	0-1.24 kPa to 186.45 kPa (Range codes 3, 4, 5)	±0.2％	<0.1% FS/year
3351DP Large differential pressure transmitter	0-117.21 kPa to 6890 kPa (Range codes 6, 7, 8)	±0.25％	<0.1% FS/year
3351HP High static pressure differential pressure transmitter	0-6.22 kPa to 2070 kPa (Range codes 4, 5, 6, 7)	±0.25％	<0.1% FS/year
3351GP Pressure transmitter	0-1.24 kPa to 41370kPa (Range code 3-0)	±0.25％	<0.1% FS/year
3351GP/DP Remote differential pressure transmitter	0-6.22 kPa to 6890 kPa (Range codes 4, 5, 6, 7, 8)	±0.5％	<0.25% FS/year
3351AP Absolute pressure transmitter	0-6.77 kPa to 6890 kPa (Range codes 4, 5, 6, 7, 8)	±0.25％	<0.1% FS/year
3351DR Micro differential pressure transmitter	0-0.12 kPa to 1.49 kPa (Range code 2)	±0.5％	<0.25% FS/year

● Temperature impact At the maximum range, Change every 28 ℃	Range code Or name	Accuracy class

		Level 0.2	0.25 level	Level 0.5
	2	/	/	≤±0.54%/
	3	≤±0.20%	≤±0.30%	≤±0.45%
	4. 5, 6, 7, 8	≤±0.20%	≤±0.20%	≤±0.30%
	Remote transmission, liquid level	/	/	≤±0.60%
●Static pressure influence (At maximum range)	Range code Or name	Accuracy class
	Range code Or name	Level 0.2	0.25 level	Level 0.5
	2	/	/	≤±1%
	3	≤±0.2%	≤±0.5%	≤±0.6%
	4. 5, 6, 7, 8	≤±0.20%	≤±0.30%	≤±0.6%
	4. 5, 6, 7 (high static pressure)	/	≤±2%	≤±2.5%
※performance metrics
● Structural materials	Isolation membrane: 316 stainless steel, Hastelloy C, Monel alloy, tantalum. O-ring (medium contact area): Fluororubber. Flange: 316 stainless steel. Filling fluid: silicone oil or inert oil. Electrical casing: polyurethane baked paint low copper cast aluminum alloy.
● Pressure connector	The connecting screw hole on the pressure chamber is 1/4NPT, and the connecting screw hole on the impulse joint is 1/2NPT. The center distance is shown in the external dimension drawings of various models. The signal cable connection screw hole is M20 × 1.5.
● Shell protection level	IP65
● Weight	3.9kg (excluding options, except for flanged transmitters).

«FB3351APType Absolute Pressure Transmitter Selection Table

FB3351AP	Absolute pressure transmitter
┆	code name	Measurement range (kPa)
┆	4	0－6.22～37.29
┆	5	0－31.10～186.45
┆	6	0－117.21～689.48
┆	7	0－345～2068
┆	8	0－1170～6890
┆	┆	code name	output
┆	┆	S	Intelligent 4-20mADC two-wire system+fieldbus HART protocol
┆	┆	┆	code name	Structural materials
┆	┆	┆	code name	flange joint		Exhaust/Drain Valve	Isolation membrane		Fill with liquid
┆	┆	┆	22	316 stainless steel		316 stainless steel	316 stainless steel		silicone oil
┆	┆	┆	23	316 stainless steel		316 stainless steel	Hastelloy C
┆	┆	┆	24	316 stainless steel		316 stainless steel	Monel
┆	┆	┆	25	316 stainless steel		316 stainless steel	Tantalum
┆	┆	┆	33	Hastelloy C		Hastelloy C	Hastelloy C
┆	┆	┆	44	Monel		Monel	Monel
┆	┆	┆	┆	code name	Options
┆	┆	┆	┆	M3	3 1/2LCD digital display header
┆	┆	┆	┆	B1	Pipe bending bracket
┆	┆	┆	┆	B2	Board mounted bending bracket
┆	┆	┆	┆	B3	Pipe mounted flat bracket
┆	┆	┆	┆	D0	The relief valve is located at the rear of the pressure chamber
┆	┆	┆	┆	D1	The side relief valve is located at the upper part of the pressure chamber
┆	┆	┆	┆	D2	The side relief valve is located at the lower part of the pressure chamber
┆	┆	┆	┆	C3	1/2NPT taper pipe female threaded joint
┆	┆	┆	┆	C1	1/2NPT pressure transition joint rear welded with a φ 14 pressure pipe
┆	┆	┆	┆	C2	T-shaped threaded joint M20 × 1.5
┆	┆	┆	┆	d	Explosion proof ExdIICT6
┆	┆	┆	┆	i	Intrinsically safe ExiaICT6
FB3351AP	4	S	22	M3	(Factory range)			Example of transmitter selection

Note: When placing an order, the factory range must be specified. If not specified, the highest rated range shall be used for factory delivery.

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