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WRNK-8423d explosion-proof thermocouple
WRNK-8423d explosion-proof thermocouple is a kind of temperature
sensor, which is widely used in chemical industry automatic control
system. Through the temperature sensor, the temperature parameter
of the controlled object can be converted into an electric signal,
which is transmitted to the display, record and adjustment
instrument , Perform detection, adjustment and control of the
system. In chemical plants, the production site is often
accompanied by various flammable and explosive chemical gases and
vapors. It is very unsafe to use ordinary thermocouples and can
easily cause environmental gas explosions. Therefore,
explosion-proof or intrinsically safe thermocouples must be used as
temperature sensors in these occasions. The explosion-proof or
intrinsically safe thermocouples produced by our factory are
suitable for dIIBT4~dIICT6, ibIIBT4, iaIIBT4, iaIICT6, and are
explosive in temperature groups. In a place where the gas is
dangerous.
Intrinsically safe thermocouples must use intrinsically safe compensation wires. The control range of their distribution parameters: total inductance ≤ 2mH, capacitance ≤ 0.06, and use associated equipment safety barriers. The selection of associated equipment is based on the following principles. Thermocouples (must be insulated ) When equipped with a low internal resistance secondary meter, use MTL760/ac, Z960/ac, LB960/ac safety barriers. For the specific wiring of the safety barrier, please refer to the manufacturer's instructions.
The technical performance of the explosion-proof or intrinsically
safe thermocouple produced by our factory meets the technical
conditions of JB/T9238-1999 industrial thermocouple GB/T16839-1997,
GB/T16839.2-1997 industrial thermocouple indexing table and
allowable error, and the product All comply with the general
requirements for explosion-proof electrical equipment for explosive
environments GB3836.1-2000 and GB3836.2-2000 standards. The
national-level instrument and meter explosion-proof safety
supervision and inspection station will conduct special
verification and approval of product drawings, technical documents,
and prototypes. Explosion-proof certificate.
At present, the industrial explosion-proof thermocouple produced by
our factory has two types: nickel-chromium-nickel-silicon (type K)
and nickel-chromium-copper-nickel (type E).