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| add time： | 2016-01-14 17:09:08 |
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Industrial explosion-proof platinum resistance is a kind of temperature sensor. In the industrial automatic control system, a very wide application, through the temperature sensor, the temperature parameters of the control object can be turned into electrical signals, transmission to display, record and adjust the instrument, the system to implement the detection, regulation and control.
application
In the chemical plant, the production site is often accompanied by a variety of flammable, explosive and other chemical gases, vapors, if the use of ordinary platinum resistance is very safe, very easy to cause environmental gas explosion. Therefore, in these occasions must use the explosion proof thermocouple for temperature sensor, the factory production of the explosion resistance of platinum resistance products in the II BT4~d II CT6 D temperature group within the range of the risk of explosive gases within the premises. The explosion proof thermocouple produced by our factory is used as a temperature sensing element, and its technical performance is in line with the technical conditions of the ZBY301-85 industry and the index table. At the same time the products meet the requirements of GB3836.1-83 and GB3836.2-83 standard for explosion proof electrical equipment in explosive environment.
Main technical index
Measuring range
model | Graduation | Measuring range℃ | Precision grade | Allowable deviation△ t ℃ |
WZP WZP 2 WZPK WZPK 2 | PT100 | -200~500 | A 级 | ±（0.15+0.002|t|） |
B 级 | ±（0.30+0.005|t|） |
Note: "t" is the absolute value of the temperature sensing element, double platinum resistance only supply B level thermal resistance to allow the current through the platinum resistance measurement of the current maximum not more than 5mA.
