Pressure transmitter complex Sapfir 22 (Sapphire pressure sensor 22) is designed for continuous transformation of the measured parameter values - the absolute pressure, gauge pressure, vacuum, and the hydrostatic pressure difference of neutral and aggressive media, as well as the level conversion into standardized current output.
The pressure transmitter is designed for use in automatic control, regulation and control of technological processes in various industries, including for use in hazardous areas of oil and gas industry, nuclear power facilities (UAE) and for export.
Pressure transducer consists of a flow and electronic units. All converters are unified electronics design and differ only in the gauge block.
The principle of operation of pressure sensors Sapfir 22 based on the impact of measured pressure (differential pressure) in the membrane measuring unit (models 2051, 2151, 2161, 2171, 2351 on the membrane tensoconverters), which causes the elastic deformation of the sensor and the change in resistance strain gages tensoconverters. This change is converted into an electrical signal that is transmitted from tensoconverters of the measuring unit in the electronic unit, and then in the form of a standard current standard signal [(0-5), (0-20), (4-20), (5-0) (20-0) and (20-4)] mA.
The pressure transmitter is performance on explosion protection:
a) Ex with type of protection "Intrinsic safety" ia "and the level of protection "particularly explosive safety "(O);
b) Ex with the types of protection "flameproof enclosure" (d);
c) no explosion.
Explosion pressure transducer is designed for installation in hazardous areas, indoor and outdoor plants, according to the documents regulating the use of electrical equipment in hazardous areas.
Converter, designed to work on the UAE, is a class 2U PHAE on G-1-011-89 and is only available in no explosion performance.