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Connection Heads Specifications

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Temperature Sensor Accepted:

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Head Type (Attachment):

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Terminal Block:

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Material:

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Protection Tube (Sensor Thread):

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Extension Wire (Conduit Connection):

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Features:

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Operating Temperature:

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View Connection Heads Datasheets

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Thermohead Type
   Temperature Sensor Accepted       
   Your choices are...         
   Thermocouple       The junction of two dissimilar metals that has a voltage output (Seeback Potential) proportional to the difference in temperature between the hot junction and the lead wires (cold junction). 
   RTD (Resistance Temperature Detector)       Resistance Temperature Detector (Standard or Precision). Resistive Temperature Detectors operate on the principle that the electrical resistance of a metal conductor changes as a function of temperature. RTDs provide an accurate, stable and repeatable means of absolute temperature measurement. 
   Other       Other unlisted, specialized, or proprietary configuration such as thermistors or solid-state style sensors. 
   Search Logic:      All products with ANY of the selected attributes will be returned as matches. Leaving all boxes unchecked will not limit the search criteria for this question; products with all attribute options will be returned as matches.
   Head Type (Attachment)       
   Your choices are...         
   Screw Cap & Chain       Threaded cap screws on to body, typically also attached with a chain. 
   Hinged, Latching Closure       Convenient latching closure mechanism. 
   Bolted Cover       The cover is attached with bolts or screws for better protection in hazardous environments. 
   Open Head       No protection. Connections easily accessible. 
   Search Logic:      All products with ANY of the selected attributes will be returned as matches. Leaving all boxes unchecked will not limit the search criteria for this question; products with all attribute options will be returned as matches.
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Physical Specifications
   Terminal Block      Typically, thermoheads include an integral terminal block for connection with the temperature sensor.
   Your choices are...         
   None       The thermohead is not equipped with a terminal block for sensor connections. 
   Single Element       The thermohead is equipped with a single element terminal block. 
   Multi Element       The thermohead is equipped with a multi element terminal block. 
   Search Logic:      All products with ANY of the selected attributes will be returned as matches. Leaving all boxes unchecked will not limit the search criteria for this question; products with all attribute options will be returned as matches.
   Material      Many material configurations are possible for thermoheads; the listed options represent the most common and typical stock products available. Material consideration should be discussed with the manufacturer for specific applications.
   Your choices are...         
   Cast Iron       The term "cast iron" refers not to a single material, but to a family of materials whose major constituent is iron, with important trace amounts of carbon and silicon. Cast irons are natural composite materials whose properties are determined by their microstructures - the stable and metastable phases formed during solidification or subsequent heat treatment. The major microstructural constituents of cast irons are: the chemical and morphological forms taken by carbon, and the continuous metal matrix in which the carbon and/or carbide are dispersed. 
   Aluminum       A bluish silver-white malleable ductile light trivalent metallic element that has good electrical and thermal conductivity, high reflectivity, and resistance to oxidation. 
   Stainless Steel       Stainless steel is chemical and corrosion resistant and can have relatively high-pressure ratings. 
   Steel       A commercial iron that contains carbon in any amount up to about 1.7 percent as an essential alloying constituent. It is malleable when under suitable conditions, and is distinguished from cast iron by its malleability and lower carbon content. 
   Plastic       One of many high-polymeric substances, including both natural and synthetic products, but excluding the rubbers. 
   Other       Other unlisted, specialized, or proprietary material. 
   Search Logic:      All products with ANY of the selected attributes will be returned as matches. Leaving all boxes unchecked will not limit the search criteria for this question; products with all attribute options will be returned as matches.
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End Connections
   Protection Tube (Sensor Thread)      Thread options for the protection tube connection.
   Your choices are...         
   1/8" NPT       The protection tube connection (sensor thread) is 1/8" NPT. 
   1/4" NPT       The protection tube connection (sensor thread) is 1/4" NPT. 
   1/2" NPT       The protection tube connection (sensor thread) is 1/2" NPT. 
   3/4" NPT       The protection tube connection (sensor thread) is 3/4" NPT. 
   1" NPT       The protection tube connection (sensor thread) is 1" NPT. 
   Other       Other unlisted, specialized, or proprietary configuration. 
   Search Logic:      All products with ANY of the selected attributes will be returned as matches. Leaving all boxes unchecked will not limit the search criteria for this question; products with all attribute options will be returned as matches.
   Extension Wire (Conduit Connection)      Thread options for the extension wire entry of thermohead.
   Your choices are...         
   1/8" NPT       The extension wire entry of the thermohead is 1/8" NPT. 
   1/4" NPT       The extension wire entry of the thermohead is 1/4" NPT. 
   1/2" NPT       The extension wire entry of the thermohead is 1/2" NPT. 
   3/4" NPT       The extension wire entry of the thermohead is 3/4" NPT. 
   1" NPT       The extension wire entry of the thermohead is 1" NPT. 
   Other       Other unlisted, specialized, or proprietary configuration. 
   Search Logic:      All products with ANY of the selected attributes will be returned as matches. Leaving all boxes unchecked will not limit the search criteria for this question; products with all attribute options will be returned as matches.
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Features
           
   Your choices are...         
   Miniature       Small thermohead used for space-restricted applications. 
   Explosion-proof       Explosion proof protection for hazardous area applications. 
   Weatherproof       Complete protection from weather in outdoor locations. 
   Sanitary       Thermohead rated for sanitary applications such as food or pharmaceutical applications. 
   Chemical Resistant       Resistant to harsh or abrasive chemicals. 
   Epoxy Coated       Epoxy is a two-part resin based material. 
   Extension       Includes extension for connection to thermowell or instrument. (Nipple, Union, Compression, etc.) 
   Security "Lockouts"       Requires 'key' for terminal block access. Prevents entry by unauthorized personnel. 
   Search Logic:      All products with ANY of the selected attributes will be returned as matches. Leaving all boxes unchecked will not limit the search criteria for this question; products with all attribute options will be returned as matches.
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Environment
   Operating Temperature       This is the full-required range of ambient operating temperature. 
   Search Logic:      User may specify either, both, or neither of the limits in a "From - To" range; when both are specified, matching products will cover entire range. Products returned as matches will meet all specified criteria.
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