When installing the PT100 temperature sensor in the hazardous area, a PT100 temperature sensor that is suitable for the use of the PT100 in the dangerous area needs to be installed. The two main methods used meet the applicable standards and are allowed to be used in these areas.

 

Safety device is under any spark or thermal effects produced under the conditions specified in AS-NZS 60079.11-2002, including normal operation and specified fault conditions, which cannot cause ignition of specific explosive gas atmosphere.

 

In principle, the essential safety device does not need a shell, because the protection method is reflected in the circuit itself. It is generally believed that the standard wind -proof shell is suitable.

 

PT100 thermocouple temperature sensor and resistance thermometer are classified as simple instruments when evaluating whether it is used for essential safety circuits. RTD is classified as a simple instrument because it is a passive device. This is the category of thermocouple because it does not produce enough energy to cause any possible ignition of any abundant gas.

 

If simple equipment is needed to maintain the integrity of the essential safety circuit and ground isolation, it must be able to withstand the valid value of the 500 volt exchange of the ground. This will only be applied to the right and wrong of being used as a barrier or a transmitter.

 

Explosion -proof (ex 'd)

 

The explosion -proof device is protected by electrical equipment. If an internal explosion occurs, the shell will not be damaged, and the explosion usually comes from the flammable mixture of the internal internal. When the explosion occurs, the flame path of entering the external atmosphere must be long enough to ensure that the gas is not lit the gas in the external atmosphere.

 

Fireproof PT100 temperature sensor component

 

The sensors installed in explosion -proof applications must be approved to be used in this field. The following components are approved by ATEX for EX 'D' installation.

	IS A component has an ASS head plug or welding or silver Welding to the sensor. Compressed accessories are optional. Sensor type: RTD (PT100ORPT 500) Thermocouple (T, K, J, E, N, B, Rors) Diameter: 3mm, 6mm, 8mm Maximum width: 15 meters Protection level: Ex'd'IIC
	ISE components have a SS joint, 8 welding or silver welding to the sensor. Sensor type: RTD (PT100ORPT 500) Thermocouple (T, K, J, E, N, B, Rors) Diameter: 3mm, 6mm, 8mm Maximum width: 15 meters Protection level: Ex'd'IIC