תיאור
1. Introduction:
Thermocouple Extension wire is usually used to connect thermocouple and display-controled meters in order to lower the inaccuracy caused by temperature change on the connections.
2. Construction:
Conductor: original thermocoupole alloy material, in solid wire or strand wires
Insulation Layer:
Fiberglass (ambient temperature range 0-300ºC
PVC (ambient temperature range 0-105ºC)
Telflon (ambient temperature range 0-350ºC)
Silicone rubber (ambient temperature range 0-180ºC)
Jacket layer materials: fiberglass, PVC, teflon, silicone rubber
Galvanized layer: stainless steel, tinned brass
3.Standard: conforms to IEC584 standard.
4. Color Code:Table 1
1, SUBJECT
Fiberglass braided insulated thermocouple wire, type J, stranded wire with metallic
overbraid, 2×7/0.3mm, standard tolerances and color code.
2, TECHNICAL FEATURES
א. Conductors:
Stranded thermocouple extension wire
| Conductors Size(AWG) | NO.of Strands &Gauge |
| 20 | 7/0.3מ"מ |
ב. Insulation:
Braided fiberglass (400ºC)
| Nominal Insulation Thickness | 0.20 mm±0.2mm |
Color code
| Positive | Color | Negative | Color |
| Iron | yellow | Constantan | red |
ג. Assembly:
Two conductors (positive and negative) parallel construction.
ד. Overall Jacket
Braided fiberglass (400ºC)
| Nominal Insulation Thickness | 0.25mm±0.2mm |
| Color code: | black or black trace |
ה. Metal Overbraid
Stainless steel round wire braid, 85% minimum coverage
3, DIMENSIONS AND TOLERANCES
| Dimensions/tolerances(מ"מ) | Ø3.2±0.2mm |
4, CALIBRATION TOLERANCE
| Temperature range | Standard tolerance | Special tolerance |
| 0ºC to 400ºC | ±2.2ºC or 0.75% | ±1.1ºC or 0.4% |
Thermocouple extension wire type available: KX, JX, TX, EX, NX, RX,SX and other compensating
cable like KCA, KCB and so on.
Besides those wires, we can also produce according to your demand.
7. How to select:Order Code: e.g.
| J | 2*7/0.3 | FG | FG | SS | DIN |
1 2 3 4 5 6
1 Thermocouple Types: K, J, ה, ט, N, S RTD: Cu, Ni
2 Conductot dimension:
2*7/0.3 means 2 cores, each core includes 7 strands wire,
each wire diameter is 0.3mm, more example: 2×7/0.2, 2×4/0.65, 2×1/0.3 etc.
Other way to symbol the conductor dimensions:
Conductor square meter: 0.25mm²
AWG standard (see*Table 2)
3 Insulated layer materials:
FG: fiberglass PVC: PVC TF: teflon SR: silicone rubber
4 Jacket layer material
FG: fiberglass PVC: PVC TF: teflon SR: silicone rubber
5 Galvanized Layer material: SS: stainless steel TB: tinned brass
6Color Code:
ANSI: American standard DIN: Germany standard BS:Britain standard
NFC: France Standard JIS: Japan Standard IEC: IEC standard
8. Photos for reference.
