Pasia Industries Ltd
PASIA INDUSTRIES LTD ————Leading MI Cable Heating
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Copper Conductor Mineral Insulated Thermocouple Cable of Metal Sheath is extruded into shape, made of two different metal conductors and inorganic mineral insulated material.
Features
Specification
Take the KSK2B30 as example to explain the specification
| Example | K | S | K | 2 | B | 30 |
| KSK2B30 | K=thermocouple cable | Sheath material | Conductor Combinations | Number of Conductors | EMF Characteristics | Sheath Diameter (mm)ⅹ10 |
Thermocouple Precision Grade
The EMF thermocouple output and tolerance are met with products covered in this specification and are certified at a given temperature.
| Conductor Combination Reference | Calibration Temperatures ℃ | Tolerances | |
| J | 200 400 700 | Grade 1 | Grade 2 |
| K&N | 200 400 600 800 1000 | -40℃ to 375℃ within ±1.5℃ | --40℃ to 333℃ within ±2.5℃ |
| E | 200 400 600 800 | -40℃ to 375℃ within ±1.5℃ | -40℃ to 333℃ within ±2.5℃ |
| T | 200 400 | -40℃ to 125℃ within ±1.5℃ | -40℃ to 133℃ within ±2.5℃ |
Note: the maximum calibration temperature should not exceed the maximum continuous operation temperature of the sheath material.
Specification of the Thermocouple Cable
| Cable Diameter | Conductor Diameter and Number | Minimum Insulation Thickness | Minimum Sheath Thickness | ||||
| Nominal± Tolerance | 2-core Minimum | 4-core Nominal | 6-core Nominal | 2-core | 2-core | 4-core | 4-core |
| 0.5±0.025 | 0.08 | - | - | 0.04 | 0.05 | - | - |
| 1.0±0.025 | 0.15 | - | - | 0.08 | 0.10 | - | - |
| 1.5±0.025 | 0.23 | - | - | 0.12 | 0.15 | - | - |
| 2.0±0.025 | 0.30 | - | - | 0.16 | 0.20 | - | - |
| 3.0±0.025 | 0.45 | - | 0.24 | 0.30 | 0.30 | - | |
| 3.2±0.032 | 0.48 | - | 0.26 | 0.32 | |||
| 4.0±0.040 | 0.60 | - | - | 0.32 | 0.40 | - | - |
| 4.5±0.045 | 0.68 | 0.51 | - | 0.36 | 0.45 | - | - |
| 4.8±0.048 | 0.72 | - | - | 0.384 | 0.48 | - | - |
| 5.0±0.050 | 0.75 | - | - | 0.4 | 0.50 | - | - |
| 6.0±0.060 | 0.90 | 0.68 | 0.68 | 0.48 | 0.60 | 0.59 | 0.59 |
| 6.4±0.064 | 0.96 | - | - | 0.512 | 0.64 | - | - |
| 8.0±0.080 | 1.20 | 0.91 | - | 0.64 | 0.80 | 0.79 | - |
Note: jumbo sizes approximately equivalent to the above diameters are normally available.
Maximum Recommended Continuous Working Temperature
| Sheath Materials | Temperature ℃ | Thermocouple Type | Temperature ℃ |
| C | 250 | T | 400 |
| D | 400 | J | 750 |
| QRST | 800 | E | 800 |
| WI | 1100 | K | 1200 |
| N | 1250 | N | 1250 |
Quality Inspection
When product manufacture is finished, every coil of cable should undergo a series of quality assurance tests.
1 Sheath integrity (water immersion test)
2 Dimensional tolerances
3 Surface finish
4 EMF calibration
5 Insulation resistance
6 Sheath ductility
7 Conductor ductility
Testing report is available upon request. Additional specialty tests can be arranged as per customer’s requirement.