wika tr12-b tr12-m 過程熱電阻溫度計(jì)配保護(hù)套管 防爆ex d ex i

process resistancethermometer
model tr12-b, for additional thermowell
model tr12-m, basis module

fig. left: processresistance thermometer model tr12-b
fig. right: basis module model tr12-m

 

   applications
    ■ chemical industry
    ■ petrochemical industry
    ■ offshore
    ■ plant and vessel construction

   specialfeatures
    ■ for many variants oftemperature transmitters with field transmitter
    ■ for mounting in all standard thermowelldesigns
    ■ spring-loaded measuring insert(replaceable)
    ■ explosion-protected versions ex d, exi

   description
    resistance thermometers in thisseries can be combined with a large number of thermowell designs.the replaceable, centrically spring-loaded measuring insert and itsextended spring travel enable combination with the widest rangeof
connection head designs.
    a wide variety of possible combinations ofsensor, connection head, insertion length, neck length, connectionto thermowell etc. are available for the thermometers; suitable forany thermowell dimension and any application.

 

   specifications

      neck tube versions

      measuring insert
    theexchangeable measuring insert is made of a vibrationresistantsheathed measuring cable (mi cable).
    the diameter of the measuring insert should beapprox. 1 mm smaller than the bore diameter of the thermowell. gapsof more than 0.5 mm between thermowell and the
measuring insert will have a negative effect on the heat transfer,and they will result in unfavourable response behaviour from thethermometer.
    when fitting the measuring insert into athermowell, it is very important to determine the correct insertionlength (= thermowell length for bottom thicknesses of ≤ 5.5 mm).the measuring insert should be spring-loaded (spring travel: 0 ...20 mm) in order to ensure that it presses against the bottom of thethermowell.

 

   necktube
    the neck tube is screwedinto the connection head or the case. the neck length depends onthe intended use. usually an isolation is bridged by the neck tube.also, in many cases, the neck tube serves as a cooling extensionbetween the connection head and the medium, in order to protect anypossible built-in transmitter from high medium temperatures.
    in the ex d version the flameproof joint isintegrated in the neck tube.

 

   thermowellselection

      transmitter (option)

      explosion protection
    forapplication in hazardous areas, corresponding versions areavailable.

   intrinsicsafety
    the instruments comply withthe re of 94/9/ec
    (atex) directive for gas.

   flameproofenclosure
    these instruments comply with the reof 94/9/ec (atex) directive or iecex for gas.

    theclassification/suitability of the instrument (permissible powerpmax as well as the permissible ambient temperature) for therespective category can be seen on the ec typeexaminationcertificate or on the iecex certificate and in the operatinginstructions.

   built-in transmitters have their own ec type-examinationcertificate. the permissible ambient temperature ranges of thebuilt-in transmitters can be taken from the correspondingtransmitter approval.

 

   functionalsafety (option)
    insafety-critical applications, the entire measuring chain must betaken into consideration in terms of the safety parameters. the silclassification allows the assessment of the risk reduction reachedby the safety installations.
    selected tr12 process resistance thermometers incombination with an appropriate temperature transmitter (e.g. modelt32.1s) are suitable as sensors for safety
functions up to sil-2.
    matched thermowells allow easy dismounting ofthe measuring insert for calibration. the optimally tuned measuringpoint consists of a thermowell, a tr12
thermometer and a t32.1s transmitter developed in accordance withiec 61508. thus, the measuring point provides maximum reliabilityand a long service life.

 

   electricalconnection
    (colour code per iec 60751)

      orderinginformation
    model / explosionprotection / ignition protection type / sensor /sensor    specification / thermometer operatingrange / terminal box / thread size at the cable entry / cable entry/ transmitter / neck tube version / connection to housing,connection head / connection to thermowell / neck tube length n(mh)/ insertion length a / measuring insert / options

 

   

歡迎致電咨詢訂購(gòu)wika tr12-btr12-m 過程熱電阻溫度計(jì) 配保護(hù)套管 防爆ex d ex i

電話:010-51930

傳真：010-51669912

115 2636968574

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公司官網(wǎng)：https://www.zoriver.com.cn           https://www.zoriver.cn

本產(chǎn)品的加工定制是是，品牌是WIKA/威卡，類型是隔爆型熱電阻，型號(hào)是TR12-BTR12-M，分度號(hào)是PT100，測(cè)量范圍是-200...+600°C（℃），允差等級(jí)是A，熱響應(yīng)時(shí)間是1（s），裝箱數(shù)是1