UM344-2 MODEL DESIGNATION AND SPECIFICATIONS
September 1995
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Table 8.4 provides a list of replacement thermocouples and RTDs for Model 344T series thermal sensors.
In critcal applications, it may be desirable to have on-hand spare elements. All thermal elements are 1/4”
in diameter with a 316SS sheath and grounded measuring junction. All thermal elements are spring
loaded. The length of the assembly, computed as A + F + U, must be supplied. For cast aluminum or
cast iron connection heads add 2” to the computed length for T/Cs and RTDs.
Table 8.5 lists thermocouple wire for common thermocouple types. Thermocouple wire is twisted-shielded
pair, 20 gauge, PVC insulated. RTD wire is 16 or 20 gauge 3-wire twisted-shielded.
TABLE 8.4 Replacement Thermocouples and RTDs for 344T Temperature Elements
SINGLE ELEMENT TYPE DUAL ELEMENT TYPE
ASL14J J ADSL14J J
ASL14T T ADSL14T T
ASL14K K ADSL14K K
ASL14E E ADSL14E E
ASL14S S ADSL14S S
ASL14R R ADSL14R R
ASL14B B ADSL14B B
ASL14N N ADSL14N N
RTD 14 100 ohm platinum RTD
(Alpha = 0.00385) DRTD14 100 ohm platinum RTD
(Alpha = 0.00385)
TABLE 8.5 Thermocouple Wire
16 GAUGE 20 GAUGE TYPE
UP/ALPTW-16-JX UP/ALPTW-20-JX J
UP/ALPTW-16-TX UP/ALPTW-20-TX T
UP/ALPTW-16-KX UP/ALPTW-20-KX K
UP/ALPTW-16-EX UP/ALPTW-20-EX E
UP/ALPTW-16-SX UP/ALPTW-20-SX S
UP/ALPTW-16-RX UP/ALPTW-20-RX R
UP/ALPTW-16-BX UP/ALPTW-20-BX B
UP/ALPTW-16-NX UP/ALPTW-20-NX N
UP/ALPTW-16-TRIAD UP/ALPTW-20-TRIAD RTD 100 Ω