Measuring instruments in Bulk Cryogenic Tank Level Monitoring are used to measure the level of cryogenic liquified gases.Differential pressure is a simple and reliable way to monitor the liquid level in cryogenic gas tanks. These sensors work by measuring the pressure at both the top and bottom of the tank and calculating the pressure difference of the two ends.
The resulting value indicates the pressure of the cryogenic liquified gas which is finally converted to a precise level value.
Oxygen cleaned Differential pressure transmitters and pressure transmitters are widely used for monitoring the liquid level and pipeline in the cryogenic gas tank. Cleaning standards shall be compatible with ASTM-93 and CGA 4.0.
Since oxygen pressure measurement is quite complex and in this article Micro Sensor will focus on Oxygen pressure measurement solutions.
NCS Series of Intelligent Transmitters are digital, intelligent, network-based, merged with advanced, reliable and stable sensor technology, to be designed as a new generation of Fieldbus Intelligent Transmitter.
NCS Series of Intelligent Transmitter have been designed with high precision and high reliability, high stability. The pressure, temperature, currents and other physical quantities are displayed on LCD module. Zero drift, range settings and many other functions, are realized by the magnetism bar operation. The interoperability between different systems and equipments are realized by the Equipment Description Document, which is coMpatible to a variety of device management software, and adapting to harsh electromagnetic environment. NCS Series of Intelligent Transmitter have been used in inflammable and explosive places according to Intrinsically Safety Design.NCS-PT105 series of Intelligent Pressure Transmitters are well- designed with advanced, mature and reliable capacitance sensors, combined with advanced microprocessor technology and digital capacitance measurement technology. Internal microprocessor make it intelligent, high-precise, high reliable and zero-point stable. It is easy to debug in the field.
NCS-PT105 Series of Intelligent Pressure Transmitters, complied with HART Protocol, have been used to measure pressure, level, flow and other industrial parameters, which have been widely used in petroleum, chemical, metallurgy, electricity, cement, etc.
NCS-PT105Ⅱ series Smart Pressure Transmitter with advanced, mature, reliable 3151 capacitance sensors has been designed meticulously by combining advanced microprocessor technology and digital capacitance measurement technology. The powerful functions and high-speed computing capability of the microprocessor make it have excellent qualifications such as smart, high precision, high reliability, stable zero and so on. Its LCD can display many physical parameters (e.g. pressure, temperature, current and so on). It can realize the functions such as zero adjustment, range settings by key-press operation, and it is easy for field testing.
NCS-PT105Ⅱ series Smart Pressure Transmitter supports HART, FF, and PA protocol and can measure pressure, differential pressure, liquid level, flow, and other industrial parameters. It can be widely used in the petroleum, chemicals, electricity, and metallurgical industries, etc..
According to the type of measurable pressure:
Model | Pressure type |
NCS-PT105ⅡSG | |
NCS-PT105ⅡSA | Absolute Pressure Transmitter |
NCS-PT105ⅡSD | Differential Pressure Transmitter |
NCS-PT105ⅡSH | Differential Pressure Transmitter For High Static Pressure |
As a transitional communication protocol in fuildbus, HART protocol achieves digital transmission on the existing analog transmission lines, and is coMpatible with existing analog signal control system. Either FF H1or PROFIBUS PA is a new generation of digital communication protocol, used in field connection, and linking field devices. International Standard IEC61158-2 is used in physical layer. Therefore, either FF H1or PROFIBUS PA is fieldbus actually.
As following, Smart Transmitter with HART protocol is named as HART Smart Transmitter; Smart Transmitter with FF H1 protocol is named as FF Smart Transmitter; Smart Transmitter with PROFIBUS PA protocol is named as PA Smart Transmitter, All of these (Transmitters with the three types of fieldbus protocol) are named as Smart Pressure Transmitters or Smart Transmitters. In addition, HART Smart Transmitter has passed explosion-proof certification from National Supervision and Inspection Center for Explosion Protection and Safety of Instrumentation (NEPSI).
