THERMOCOUPLE     EXTENSION     WIRE       Tolerance of Thermocouple Extension Wire JIS C   1610 - 1981 ANSI MC   96.1 - 1982 Extension Wire Types Material of Conductor Temp. Range ℃ Limits of Error Extension Wire Types Temp. Range ℃ Limits of Error JIS - ' 81 JIS - ' 74 + Positive - Negative Standard Specail Standard Specail BX - Cu Cu 0 ~ 100 - - BX 0 ~ 100 +0.000mV -0.033mV - RX SX - Cu Cu-Ni Alloy 0 ~ 150 +3℃ -7℃ - RX SX 0 ~ 200 ±0.057mV - - WPR Cu Cu-Ni Alloy 0 ~ 150 +3℃ -7℃ - RX SX 0 ~ 200 ±0.057mV - KX WCA Ni-Cr Alloy Ni Alloy -20 ~ 150 ±2.5℃ ±1.5℃ KX 0 ~ 200 ±2.2℃ ±1.1℃ WX WCA Fe Cu-Ni Alloy -20 ~ 150 ±3.0℃ - (WX) (0 ~ 100) (±2.2℃) (±1.1℃) VX WCA Cu Cu-Ni Alloy -20 ~ 150 ±2.5℃ - - - - - EX WCRC Ni-Cr Alloy Cu-Ni Alloy -20 ~ 150 ±2.5℃ ±1.5℃ EX 0 ~ 200 ±1.7℃ ±0.9℃ JX WIC Fe Cu-Ni Alloy -20 ~ 150 ±2.5℃ ±1.5℃ JX 0 ~ 200 ±2.2℃ ±1.1℃ TX WCC Cu Cu-Ni Alloy -20 ~ 150 ±2.0℃ ±1.0℃ TX -60 ~ 100 ±1.0℃ ±0.5℃ KX, WX, VX are intended for use with type K thermocouple.   Nominal Overall Diameter Conductor of Core Insulation Outer Diameter Size (mm) Outer Diameter Thickness (mm) Outer Diameter without Shield with Shield PVC 7/0.3 0.9 0.6 1.9 3.1x5.0 3.7x5.6 7/0.65 1.95 0.6 3.15 4.8x7.9 5.4x8.5 4/0.65 1.57 0.5 2.77 4.4x7.2 5.0x7.8 4/0.3 0.7 0.5 1.2 2.8x4.8 3.4x5.4 Glass 7/0.32 0.9 0.4 2.3x4.0 2.9x4.6 7/0.65 1.95 0.4 3.4x6.2 4.0x6.8 4/0.65 1.57 0.4 3.0x5.4 3.6x6.0 4/0.32 0.7 0.4 2.0x3.8 2.6x4.4   MODEL CODE SPECIFICATION □□－□□－□－□ TYPE B Thermocouple R Thermocouple S Thermocouple K Thermocouple V Thermocouple W Thermocouple J Thermocouple T Thermocouple E Thermocouple BX RX SX KX VX WX JX TX EX INSULATOR SHEATH PVC Glass Fiber VV GG SIZE Φ0.65x7P Φ0.32x7P Φ0.65x4P Φ0.32x4P 7/0.65 7/0.32 4/0.65 4/0.32 SHIELD with Shield without Shield S N