Pressure transmitter

NegotiableUpdate on 12/14

Model

Nature of the Manufacturer: Producers

Product Category

Place of Origin

Online Consult

Overview

Pressure transmitter is the core sensing equipment of industrial automation, which can convert pressure parameters such as gas and liquid into standard signals such as 4-20mA, achieving remote monitoring and control. It has the characteristics of high precision and resistance to harsh environments, and comes in various types such as capacitive and diffused silicon. Widely used in industries such as petrochemicals, electricity, water conservancy, and intelligent buildings, it provides stable and reliable pressure data support for improving production safety and efficiency.

Product Details

1、 Product Overview

Pressure transmitterAs a core detection equipment in the field of industrial automation, it focuses on precise acquisition and conversion of single pressure signals, and can monitor the absolute pressure, gauge pressure or negative pressure of gases, liquids, steam and other media in real time. It is widely used in process industries, intelligent manufacturing, environmental monitoring and other fields. Unlike differential pressure transmitters that focus on "differential measurement", thisPressure transmitterAdopting *'s silicon piezoresistive sensing technology and digital signal processing solution, it has the characteristics of wide measurement range, strong stability, and excellent environmental adaptability. It can operate stably under complex working conditions such as high pressure, low temperature, and dust, providing reliable data support for pressure control and safety warning in industrial production.

2、 Core technology and performance advantages

Full range precise measurement capability

Equipped with high-precision silicon piezoresistive sensors, the measurement accuracy can reach ± 0.05% FS through "multi-point linear calibration" technology, far exceeding the industry average of ± 0.1% FS level. Support wide range coverage, adaptable from micro pressure 0~1kPa to high pressure 0~100MPa, and the range ratio is flexible and adjustable (10:1 to 50:1), meeting the precise measurement needs in different scenarios. Built in temperature compensation algorithm effectively avoids the influence of environmental temperature changes on measurement results within the working temperature range of -40 ℃~125 ℃.

High reliability structural design

The sensor adopts integrated packaging technology, and the shell is made of 316L stainless steel material with a protection level of IP67, which can resist dust and water vapor erosion, and has excellent anti vibration performance (20g acceleration, normal operation at frequencies of 10-2000Hz). Equipped with overvoltage protection device, the signal output will be automatically cut off when the pressure exceeds 1.5 times the range to avoid sensor damage; For high-pressure scenarios, an enhanced pressure interface (optional M20 × 1.5, 1/2NPT, etc.) is adopted, with sealing performance in accordance with ANSI B16.20 standard and a leakage rate of ≤ 1 × 10 ⁻⁹ Pa · m ³/s.

Intelligent operation and maintenance, as well as interconnection capabilities

Supports multiple communication protocols such as HART 7.0, Modbus RTU, 4G/NB IoT, etc., and can be flexibly integrated into industrial control systems (DCS/PLC) or cloud platforms to achieve remote data monitoring, parameter configuration, and fault diagnosis. Equipped with an LCD display screen, it displays real-time pressure values, units, fault codes, and other information. It supports local button operation and can complete zero calibration and range setting without the need for additional tools. Built in self diagnostic function, which can monitor sensor drift, circuit faults and other abnormal situations in real time, notify operation and maintenance personnel through sound and light alarms or remote signals, and reduce downtime for maintenance.

3、 Typical application scenarios

Process industry pressure controlIn the pressure monitoring of chemical reaction vessels, real-time tracking of reaction pressure changes (control range 0.5~5MPa) is carried out. When the pressure fluctuation exceeds ± 0.02MPa, the feed valve is automatically adjusted. After application in a certain chemical enterprise, the reaction efficiency increased by 15% and the product qualification rate increased to 99.8%.

Equipment monitoring in the energy industryUsed for natural gas pipeline pressure monitoring (working pressure 0~10MPa), pressure data is uploaded to the dispatch center through 4G module. When the pipeline pressure is below 0.8MPa, a gas replenishment warning is triggered. After application, the pipeline leakage accident rate of a certain gas company decreased by 70%.

Negative pressure monitoring in the field of environmental protectionIn the flue gas treatment system of the garbage incineration plant, the negative pressure (-5~0kPa) of the bag filter is monitored. When the absolute value of the negative pressure exceeds 4kPa, it indicates that the filter bag is blocked. After timely cleaning, the flue gas emission concentration stabilizes below 5mg/m ³, meeting the national ultra-low emission standard.

4、 Key parameters and safety certification

parameter category	specific indicators
output signal	4-20mA DC (two-wire system), HART/Modbus
power supply	24V DC
environmental adaptability	-Operating temperature of 40 ℃~125 ℃, relative humidity of 0~95% (non condensing)
Explosion-proof rating	ExdIICT6 Ga (explosion-proof type), ExiaICIT6 Ga (intrinsic safety type)
Protection level	IP67 (standard), IP68 (customized)