Pусский 
Intelligent Differential Pressure Transmitter PCM3051-DP
Product overview
PCM3051-DP intelligent differential pressure transmitter is a well-developed high performance pressure transmitter based on the international leading technology, adopting the world advanced monocrystalline silicon pressure sensor technology and the patented packaging process. This product adopts the patented double overload protection diaphragm design, with the internal circuit surge protection design, and can accurately measure the gauge pressure, absolute pressure, flow, vacuum degree, liquid level and density.
Features
■ Advanced monocrystalline silicon differential pressure sensor adopted
■ Wide pressure range coverage ±3MPa
■ Double-wire mode, 4～20mA analog output, HART® protocol data communication
■ Intelligent LCD gauge head with backlight
■ With both the remote transmission and the local zero and pressure range adjustment
■ Complete varieties, high accuracy, good stability
■ Isolation ex-proof housing structure, strong resistance to the frequency conversion interference
■ High static pressure, high overload protection
■ Double overload protection diaphragm design
■ Lightning protection circuit design
Applications and industries
■ Process control fields for the industries such as petroleum, chemical industry, metallurgy, electricity, food, papermaking, medicine, machine manufacturing, scientific experiment and military aviation etc.
Product Parameters
Performance parameters | |
Pressure range | ±1kPa; ±6kPa; ±40kPa; ±100kPa; ±250kPa; ±1MPa; ±3MPa |
Pressure reference | Differential pressure |
Power supply | 12VDC～32VDC, 24VDC recommended |
Output | 4～20mA+HART® protocol |
Accuracy | ±1kPa: ±0.2%FS; ±6kPa: ±0.1%FS; Other pressure ranges: ±0.075%FS (Standard pressure ranges, 25±5℃) |
Temperature drift | ±0.5%FS (±1kPa); ±0.3%FS (±6kPa); ±0.25%FS (Other pressure ranges); @-20℃～70℃ |
Ambient temperature | -30℃～80℃; with LCD gauge outfit -30℃～70℃; |
Medium temp. | -40℃～120℃ |
Protection grade | IP67 |
Ex-proof grade | Exd IIC T6 Gb |
Static pressure range | ±1kPa; ±6kPa; ±40kPa static pressure resistance 16MPa; ±100kPa; -100～250kPa static pressure resistance 25MPa; -0.1～1MPa; -0.1～3MPa static pressure resistance 40MPa |
Overpressure limitation | 16MPa |
Long-term stability | ±0.1%FS/year |
Diaphragm material | 316L, Hastelloy C |
Relief valve | 304 |
O-ring | Silicone rubber (in contact with the measurement medium) |
Sealing liquid | Silicon oil |
Splint | 304 |
Housing material | Shell die-casting aluminum alloy, painted with epoxy resin coating |
Electrical connection | M20×1.5, NPT1/2 |
Pressure connection | M20×1.5 with welded pipe, NPT1/4(F), NPT1/2, NPT1/2(F), G1/2 with welded pipe, G1/4, tri-valve set M20×1.5 with welded pipe (304/316 optional), tri-valve set NPT1/4F (304/316 optional) |
Weight | 3.5kg (not including the optional accessory) |
Component diagram |
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| Hart communication connector diagram
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Production process
Testing Equipment
Certificate
Company profile
Nanjing Wotian Technology Co., Ltd. was established in 2005. It is an outstanding top sensor mkanufacturing enterprise in Jiangning District. The company was rated as Nanjing Engineering Technology Research Center and Nanjing. Municipal Engineering Research Center, Nanjing Enterprise Technology Center, Nanjing Postdoctoral Innovation Demonstration Base; is the unit that formulated the national standards for "Silicon Piezoresistive Pressure Sensitive Chips" and "Silicone Pressure Sensors". It is the leading domestic manufacturer of pressure sensors, with core technology of diffused silicon pressure sensor pressure transmitter, level sensor and temperature sensor and existing staff 305. The annual production of pressure sensors is more than 2 million. The products have been exported to more than 70 countries and regions. Nanjing Wotian was awarded the honorary title of "Sensor Application Program Demonstration Enterprise" by the Ministry of Industry and Information Technology in 2019. "Creating value for customers" is the goal that enterprises always pursue. As leading manufacturer in the domestic pressure sensor industry, the company will revitalize China's pressure sensor business as its own responsibility, work diligently, step by step, strive to make pressure sensors better, and provide customers with cost-effective sensors. Nanjing Wotian Technology Co., Ltd. has passed ISO9001-2015 quality management system certification and TS16949 certification for the automotive industry.
Company advantage
Mass production
We have one production center in Nanjing and one production center in Anshan with 20,000㎡plant and 170 units of production equipments. The main annual capacity of sensors is about 2,000,000 pieces.
Imported equipments
We imported 20 sets of pressure controller and 150 units of testing ovens to our production line.
Informatization management
We have the information management system of CRM, PLM, ERP, MES and DINGDING etc.
Comprehensive testing
We have our own lab and testing equipment such as lightning stroke, surging, static electricity, vibration, high-low temperature impact test and helium mass-spectrum leak detection.
