MT Material Specifications / Order Information


MATERIAL SPECIFICATION

 

MULTI-LEVEL THERMOCOUPLE

Style T-50656 T-50657 & T-50780 T-50809
Outer Diameter 0.125″ ± 0.002″ 0.500″ ± 0.005″ 0.125″ ± 0.002″ 0.500″ ± 0.005″ 0.125″ ± 0.002″ 0.500″ ± 0.005″
Transition Section ½” NPT Nipple x 4″ Long  ½” NPT Nipple x 4″ Long ½” NPT Nipple x 4″ Long ½” NPT Nipple x 4″ Long ½” NPT Nipple x 4″ Long ½” NPT Nipple x 4″ Long
Length Range (L) 6″ to 240″ ± 1″ Tolerance 12″ to 240″ ± 1″ Tolerance 6″ to 240″ ± 1″ Tolerance 12″ to 240″ ± 1″ Tolerance 6″ to 240″ ± 1″ Tolerance 12″ to 240″ ± 1″ Tolerance
Max Pressure at 100 °F 3000 psig 4000 psig 3000 psig 4000 psig 3000 psig 4000 psig
Time Constant at 3 MPS Water Velocity (grounded junction) 3 sec. 10 sec. 3 sec.   10 sec.  3 sec. 10 sec. 
Weight per Unit Length 0.3 lb/ft 0.45 lb/ft 0.3 lb/ft 0.45 lb/ft 0.3 lb/ft 0.45 lb/ft
Minimum Bend Radius for (L) Section to Avoid Permanent Set 0.5″ 12″  0.5″  12″  0.5″ 12″ 
Number of Points Available 2 to 4 2 to 7 2 to 4 2 to 6 2 to 3 2 to 3

Notes:

  1. Junctions equally spaced or provided with location per customer requirements.
  2. Assemblies are available in intermediate sizes.  Please consult ARi.

 

Calibration And Sheath Materials

Calibration Type Outer Sheath Materials
Wire Type Temp Range °F Temp Range °C Sheath Type ARi Symbol Maximum Temp °F
 J -300 to 1000 -184 to 540 304 ST/ST A 1600
K 32 to 1800 240 to 980 Inconel 600* B 1800
E -400 to 1800 -240 to 980 316 ST/ST C 1600
347 ST/ST F 1600

  multilevel_pn_explanation Thermocouple