Explosionproof platinum thermal resistance data
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There is in the data table: Protection tube diameter: 12MM accuracy: Class A junction box protection level: Explosion-proof level: d II CT6 installation form: Fixed thread flange standards and grades: Flange size and sealing surface: Thread specifications: M27 * 2 Electrical interface dimensions: M20 * 1.5 Remarks: PN6.4 Can any hero explain in detail the technical issues that need to be paid attention to when bidding for this instrument? In particular, "thread specifications and electrical interface" I understand that the electrical interface is the connection form of the thermal resistor and the device. This post was last edited by an industrial control apprentice on 2009-2-26 09:25 ]
When bidding, I think there will be no parameter errors after having the data sheet attachment.； So please focus on the thread specifications.: M27 * 2 Electrical interface dimensions: M20 * 1.5 Could you please tell me what the electrical interface is? Some say it is the instrument threading hole, and some say it is the size of the instrument and equipment installation. ； Which statement is correct? This post was last edited by an industrial control apprentice on 2009-2-26 10:31 ]
Thread specifications: M27 * 2 refers to the thread specification for installing the thermal resistor into the mounting boss.: Nominal diameter 27mm, pitch 2mm Electrical interface size: M20 * 1.5 refers to the threaded connection form of the instrument and cable sealing head: Nominal diameter 20mm, pitch 1.5 mm
The protection level of the junction box must also be mentioned, generally IP65 is used. The electrical interface refers to the outlet size of the cable, based on which the thread specifications of the explosion-proof sealing head or explosion-proof flexible pipe are determined.
Yes, I understand. It turns out there’s also the electrical connection, which I forgot to mark when I purchased it.
The thread specification only refers to the connection form between the thermometer and the process pipe. It is threaded and fixed with flange if the pressure is high. The electrical interface is the diameter of the thermocouple junction box where the millivolt signal measured by the thermocouple comes out, usually connected to a flexible hose.