1.Standard:GB4989,JB7495,IEC 2.Temperature:260,200,105 3.Alloy wire:CU,CU-Nickel,Constantan,Fe,NiCr,NiCrSi 4.Section:0.5-2.5
Metal overbraid thermocouple compensating wire
1. SPECIFICATIONS
Tinned Copper Overbraid (TCB)Stainless Steel Overbraid (SSB)1. Round wire braid2. Type 304 stainless steel is standard3. 85% nominal coverage4. Resists abrasion and mechanical damage5. Provides superior tensile strength6. Protects against longitudinal stress in vertical installations7. Color tracer identification available8. Other materials available upon request9. Available on constructions up to 1.000" (25.4MM) diameter
2. Color code & initial calibration tolerances for thermocouple wire:
Thermocouple Type | ANSI Color Code | Initial Calibration Tolerances | ||||
Wire Alloys | Calibration | +/-Conductor | Overall | Temperature Range | StandardLimits | SpecialLimits |
Iron(+) vs. Constantan(-) | J | White/Red | Brown | 0°C to +285°C285°C to +750°C | ±2.2°C± .75% | ±1.1°C± .4% |
CHROMEL(+) vs.ALUMEL(-) | K | Yellow/Red | Brown | -200°C to -110°C-110°C to 0°C0°C to +285°C285°C to +1250°C | ± 2%±2.2°C±2.2°C ± .75% | ±1.1°C± .4% |
Copper(+) vs.Constantan(-) | T | Blue/Red | Brown | -200°C to -65°C-65°C to +130°C130°C to +350°C | ± 1.5%±1°C ± .75% | ± .8%± .5°C± .4% |
CHROMEL(+) vs.Constantan(-) | E | Purple/Red | Brown | -200°C to -170°C-170°C to +250°C250°C to +340°C340°C+900°C | ± 1%±1.7°C±1.7°C± .5% | ±1°C±1°C± .4% ± .4% |
3. Thermocouple Type
Thermocouple Type | ANSI Color Code | Initial Calibration Tolerances | ||||
| Wire Alloys | Calibration | +/-Conductor | Overall | Temperature Range | StandardLimits | SpecialLimits |
Iron vs. Constantan | JX | White/Red | Black | 0°C to +200°C | ±2.2°C | ±1.1°C |
CHROMEL vs. ALUMEL | KX | Yellow/Red | Yellow | 0°C to +200°C | ±2.2°C | ±1.1°C |
Copper vs. Constantan | TX | Blue/Red | Blue | -60°C to +100°C | ±1.1°C | ± .5°C |
CHROMEL vs. Constantan | EX | Purple/Red | Purple | 0°C to +200°C | ±1.7°C | ±1.1°C |
4. FB-FB-SSB Physical Properties
FB-FB-SSB Physical Properties | ||
Characteristics | Insulation | Overall |
Specific Gravity | 2.54 | 2.54 |
Tensile Strength; psi (min) | 250,000 at 1000°F(537°C ) | 250,000 at 1000°F(537°C ) |
Elongation; %(min) | 4.8 | 4.8 |
Minimum Bend Radius | 5x O.D. | 10x O.D. |
Abrasion Resistance | Good | Good |
Cut Through Resistance | Very Good | Excellent |
Moisture Resistance | Good | Good |
Solder Iron Resistance | Excellent | Excellent |
Service Temperature | 260°C continuous 343°C single exposure | 260°C continuous 537°C single exposure |
Flame Test | Non-flammable | Non-flammable |
Metal overbraid thermocouple compensating wire
