In the application of transmitters, many working conditions require explosion-proof products, today we will learn about explosion-proof, intrinsically safe pressure transmitters.
Intrinsically safe pressure transmitters are suitable for use in hazardous environments, even in applications with extreme conditions. The intrinsically safe pressure transmitter is of the Ex ia II.C T6 Ga type and is characterized by high resistance to interference, overload and shock, low temperature drift, high stability and high measurement accuracy. Intrinsically safe pressure transmitters are widely used in the oil and gas industry, chemical and petrochemical industry, energy engineering, and heavy industry industries.
Intrinsically safe pressure transmitter: in line with the standards GB3836.1-2010, GB3836.4-2010
Explosion-proof marking: Ex ia II. C T6 Ga
Intrinsic safety parameters: Ui = 28VDC Ii = 93mADC Pi = 0.65W Ci = 0.03uF Li = 0Mh
Associated device parameters: Uo≤Ui Io≤ Ii Po≤Pi Co=Cc+Ci Lo=Lc+Li
Uo, Io, Po, Co, and Lo are the safety barrier parameters, and Cc and Lc are the distribution parameters of the connecting cables.
Explosion-proof certificate number: CE16.2281X
Intrinsically safe pressure transmitters must be used in conjunction with safety barriers in hazardous locations where explosive mixtures are present. The safety barriers used in intrinsically safe pressure transmitters shall comply with the provisions of the “Intrinsically Safe Type “I” of Electrical Equipment for Explosive Gas Atmospheres Part 4. For the sake of safety, the intrinsically safe circuit should be distinguished from the intrinsically safe circuit, and the wiring of the intrinsically safe circuit should be separated from the wiring of other electrical circuits. The system wiring diagram is as follows:
It should be noted that during the installation and use of intrinsically safe pressure transmitters, the connecting cable with the associated equipment should be a shielded cable with an insulating sheath, and its shielding layer should be grounded in a safe place.
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