Product Description:
Product Overview
Absolute pressure transmitters can achieve J. for degassing systems, distillation towers, evaporation towers, crystallizers, etc D pressure measurement, allowing overpressure at 10Mpa. Absolute pressure transmitter is a new series of products specialized in vacuum measurement control, which completely solves the problem of difficult vacuum measurement. It is widely used in fields such as pharmaceuticals, medical equipment, aerospace, scientific research, leak detection, and automation equipment matching. Target audience: liquids, gases, and vapors.
Absolute pressure refers to the pressure directly acting on the surface of a container or object, that is, the actual pressure that the object is subjected to, with its zero point being J D vacuum, symbol PABS (ABS as subscript). The pressure exerted by a thick layer of atmosphere surrounding the Earth's surface on the Earth's surface or surface objects is called "atmospheric pressure", symbolized as B; The pressure measured by instruments such as pressure gauges, vacuum gauges, U-tubes, etc. is called "gauge pressure" (also known as relative pressure), which starts from atmospheric pressure and has the symbol Pg.
The absolute pressure transmitter is a new type of transmitter produced by our company through the introduction of foreign technology and equipment. The key raw materials, components, and parts are all imported, and the whole machine has undergone strict assembly and testing. This product has the characteristics of excellent design, complete variety and specifications, and easy installation and use. Due to the complete integration of the structural advantages of the two popular and widely used transmitters (Rosemount 3051 and Yokogawa EJA) in the appearance of this model, it gives users a refreshing feeling. At the same time, it can be directly replaced with traditional 1151, CECC and other series products in installation, with strong universality and substitution ability. In order to adapt to the continuous improvement and development of domestic automation level, this series of products not only has a compact and exquisite design, but also introduces intelligent functions with HART fieldbus protocol.
2、 Product Features
1. High accuracy, good stability, two-wire input (special can be four wire input);
2. Solid components, plug-in printed circuit boards; Small, lightweight, sturdy and vibration resistant;
3. Range and zero point can be continuously adjusted externally; Positive migration can reach 500%, negative migration can reach 600%
4. Damping can be adjusted too much; Good one-way overload protection characteristics;
5. No mechanical movable parts, low maintenance workload; Unified structure across the entire series, with strong interchangeability of components;
6. The membrane material in contact with the medium can be selected; (316L, TAN, HAS-C, MONEL and other corrosion-resistant materials)
7. Explosion proof structure, all-weather use; Intelligent HART fieldbus protocol
3、 Technical parameters
Target audience: liquids, gases, and vapors
Measurement range: 0-0.1Kpa to 0-40Mpa
Output signal: 4-20mA DC
Power supply: 12-45VDC, usually 24V power supply
On site display: pointer type 0-100% scale display, LED digital display, LCD liquid crystal display optional
Explosion proof level: Explosion proof dIIBT4, Intrinsic Safety iaIICT6
Accuracy: ± 0.2%, ± 0.25%, ± 0.5%
Stability: Within six months, the basic error of the z.ui large range shall not exceed J d value
Isolation membrane: 316 stainless steel, Hastelloy C-276, Monel alloy or gallbladder
Exhaust/Drain Valve: 316 Stainless Steel, Hastelloy C, Monel Alloy
Flanges and fittings: 316 stainless steel, Hastelloy C, Monel alloy
Contact medium O-ring: Nitrile rubber, Fluororubber
Filling fluid: silicone oil or inert oil
Bolt: 316L stainless steel
Shell material: low copper aluminum alloy
Pressure connector: flange NPT1/4, Center distance 54mm; Joint NPT1/2 or M20 × 1.5 male threaded ball cone seal, with center distances of 50.8, 54, 57.2mm when equipped with a joint (NPT cone pipe thread complies with GB/T12716-91)
Signal connection hole: G1/2
4、 Product specifications
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