For the dangerous sites of humidity instrument ATEX and IECEx logo reading method
Dangerous place refers to the following areas: in normal or abnormal situations, including flammable liquid, gas, steam, or the number of combustible dust or burning area enough to cause explosion.May potentially explosive environment industry or typical technological process, including oil and gas drilling, petroleum refining and processing, fuel storage and spray paint.Explosion is the premise of fuel (such as the explosive gas such as hydrogen) and some antioxidants (such as oxygen in the air).In addition, still need to fire power source, for example, hot surface or edm.
We are sometimes unable to remove oxygen from the air or fuel, this leads to a second explosion proof type, namelyAvoid to produce fire origin.Use only after explosion-proof certification of equipment can eliminate the main fire origin.Electrical equipment must be installed in dangerous places should be specially design and testing, to ensure that its not because of the arc contact or the equipment surface temperature is too high and explode.All certified equipment can be used in the dangerous area must be labelled, indicates the protection type and level of application.
The picture above shows after the ATEX directive certification of modern typical explosion-proof explosion-proof instrument nameplate use logo.Identifier string can be divided into two parts, of which the first part is indicating the identity of the directive 2014/34 / EU requirement, and only involves with ATEX certificate of equipment.All equipment sold in the eu must have ATEX certificate.
The second part after ATEX and IECEx certification of equipment is common, this part is defined in the standard 60079-0, the general requirements of this standard specifies the explosion-proof equipment.A nameplate can contain both ATEX/IECEx certification, but the device may have its own ATEX and IECEx nameplate.
Except the ATEX/IECEX HMT360 also meet the following classification: FM (us), CSA (Canada), TIIS (Japan), PCEC (China) and the TR CU (EAC: Russia, kazakhstan and belarus).These standards required by the product identification is slightly different.
Visa pull HUMICAP ® series of temperature and humidity transmitter HMT360 is an ideal solution to measurement of humidity in the dangerous area.Even under the dangerous job category, probe option can run safely and reliably.HMT360 transmitter proven performance and technology in accordance with international standards.
Visa pull HUMICAP HMT360 (applicable to dangerous environment of this type, temperature and humidity transmitter series) product id:
Gas: 1 G II Ex ia IIC T4 Ga
Dust: II 1 d Ex ta IIIC T500 Da 80 ° C
Above show that the wholeHMT360 transmitter through specially designed, can be used in the gas and dust 20 0.Please note that the subject of sensor and transmitter can be installed in the 0/20 area.Of course, also can be installed in zone 1 or 2 area.
HMT360 temperature rating for the T4, explosion of IIC grade, which means it can be used to contain almost all the region of the gas, carbon disulfide except gas.If you want to read more about the product content, and download the identity of the larger size table, please visit:www.dacbvr.tw/HMT360.
