Compensation Cables
1. Working temperature: The temperature range for heat-resistant use is -65 ℃ to+200 ℃ or -65 ℃ to+260 ℃; The temperature range for regular use is -40 ℃ to+70 ℃ or -40 ℃ to+105 ℃.
2. Minimum ambient temperature: Fixed laying of fluoroplastic insulated and sheathed cables -60 ℃, non fixed laying -20 ℃; Fixed laying of PVC insulated and sheathed cables at -40 ℃, non fixed laying at -15 ℃.
3. Allowable bending radius: Compensation cables with copper tape shielding should not be less than 16 times the outer diameter of the cable, and compensation cables with other structures should not be less than 10 times the outer diameter of the cable.
Compensating Cable
I. Product Description
A special cable used to compensate for measurement errors caused by changes in ambient temperature.
Extends the cold junction of the thermocouple to a location with relatively stable temperature, thereby reducing the impact of cold junction temperature fluctuations on measurement results.
This product is suitable for connecting thermocouples to recorders, computers, and data processing systems in control systems with a rated voltage of 300/500 V.
II. Executive Standards
The production of compensating cables and compensating conductors shall comply with standards such as GB/T4989-94 and JB/T7495-94.
III. Technical Parameters
(I) Compensating Conductors
Model | Name |
KX-GS-VV | Compensating conductor for precision grade K-type thermocouple, general purpose, with PVC insulation and sheath |
KX-GS-VPV | Shielded compensating conductor for precision grade K-type thermocouple, general purpose, with PVC insulation and sheath, and tinned copper wire braided shield |
KX-HS-FF | High-temperature compensating conductor for precision grade K-type thermocouple, heat-resistant, with fluoroplastic insulation and sheath |
KX-HS-FP1F | High-temperature compensating conductor for precision grade K-type thermocouple, heat-resistant, with fluoroplastic insulation and sheath, and beryllium-tin copper wire braided shield |
KX-HS-FB | High-temperature compensating conductor for precision grade K-type thermocouple, heat-resistant, with PTFE insulation and glass fiber braided sheath |
KX-HS-FBP1 | High-temperature compensating conductor for precision grade K-type thermocouple, heat-resistant, with PTFE tape-wrapped insulation, glass fiber braided sheath, and tinned copper wire braided shield |
KX-HS-FP1V105 | High-temperature compensating conductor for precision grade K-type thermocouple, heat-resistant, with fluoroplastic insulation, tinned copper wire braided shield, and heat-resistant 105°C PVC sheath |
Note: The model representation of general-grade compensating conductors can be obtained by removing the letter "S" from the model of precision-grade compensating conductors (the same below).
(II) Compensating Cables
Model | Name |
KX-GS-VV | Compensating cable for precision grade K-type thermocouple, general purpose, with twisted PVC-insulated cores and PVC sheath |
KX-GS-VPV | Compensating cable for precision grade K-type thermocouple, general purpose, with twisted PVC-insulated cores, tinned copper wire braided pair shield, and PVC sheath |
KX-GS-VPVP | Compensating cable for precision grade K-type thermocouple, general purpose, with twisted PVC-insulated cores, tinned copper wire braided pair shield and overall shield, and PVC sheath |
- | Compensating cable for precision grade K-type thermocouple, general purpose, with twisted PVC-insulated cores, tinned copper wire braided overall shield, and PVC sheath |
KX-HS-FF | High-temperature compensating cable for precision grade K-type thermocouple, with twisted fluoroplastic-insulated cores and fluoroplastic sheath |
KX-HS-FP1F | High-temperature compensating cable for precision grade K-type thermocouple, with twisted fluoroplastic-insulated cores, tinned copper wire braided pair shield, and fluoroplastic sheath |
KX-HS-FP1FP1 | High-temperature compensating cable for precision grade K-type thermocouple, with twisted fluoroplastic-insulated cores, tinned copper wire braided pair shield and overall shield, and fluoroplastic sheath |
KX-HS-FFP1 | High-temperature compensating cable for precision grade K-type thermocouple, with twisted fluoroplastic-insulated cores, tinned copper wire braided overall shield, and fluoroplastic sheath |
KX-HS-FV105 | High-temperature compensating cable for precision grade K-type thermocouple, with twisted fluoroplastic-insulated cores and heat-resistant 105°C PVC sheath |
KX-HS-FP1V105 | High-temperature compensating cable for precision grade K-type thermocouple, with twisted fluoroplastic-insulated cores, tinned copper wire braided pair shield, and heat-resistant 105°C PVC sheath |
KX-HS-FP1V105P1 | High-temperature compensating cable for precision grade K-type thermocouple, with twisted fluoroplastic-insulated cores, tinned copper wire braided pair shield and overall shield, and heat-resistant 105°C PVC sheath |
KX-HS-FV105P1 | High-temperature compensating cable for precision grade K-type thermocouple, with twisted fluoroplastic-insulated cores, tinned copper wire braided overall shield, and heat-resistant 105°C PVC sheath |
Notes:
1. For other types of compensating conductors (such as KC, JX, SC, EX, NC, TX), only the first part of the model needs to be modified, e.g., EX-G-VV, TX-H-FVP, etc.
1. When multi-strand flexible cores are required for the conductor, "R" shall be added after the original model, e.g., TX-G-VVPR.
1. Compensating cables with polyethylene (Y) insulation or cross-linked polyethylene (YJ) insulation can also be provided as required.
1. The shield layer of the compensating cable can also adopt a metal tape wrapping form, such as composite aluminum tape (P3) and composite copper tape (P2).
1. For flame-retardant compensating cables, "ZR-" shall be added before the original model.
1. For armored compensating cables, "-22" shall be added after the original model to indicate steel tape armoring; "-32" shall be added to indicate steel wire armoring.
Specification Range of Compensating Cables and Compensating Conductors
Name | Number of Core Pairs | Nominal Cross-Section (mm²) | Core Structure |
Compensating Conductor | 1 | 0.5 | A: 1/0.80; B: 7/0.30 |
1.0 | A: 1/1.13; B: 7/0.43 | ||
1.5 | A: 1/1.37; B: 7/0.52 | ||
Compensating Cable | 1~19 | 2.0 | A: 1/1.76; B: 19/0.41 |
IV. Product Characteristics
Operating Temperature:
Heat-resistant type: Two grades with a maximum temperature of 200°C and 260°C respectively.
General-purpose type: Two grades with a maximum temperature of 70°C and 105°C respectively.
Minimum Ambient Temperature:
Cables with fluoroplastic insulation and sheath: -60°C for fixed installation, -20°C for non-fixed installation.
Cables with PVC insulation and sheath: -40°C for fixed installation, -15°C for non-fixed installation.
Allowable Bending Radius:
a) For compensating cables with copper tape shield, the bending radius shall not be less than 16 times the outer diameter of the cable;
b) For compensating cables with other structures, the bending radius shall not be less than 10 times the outer diameter of the cable.
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