Products
Strain Geuge Extension lead wires
Most gauges used for strain measurement are equipped with lead wires to simplify the installation procedure. Many TML strain gauges are provided with lead wires for added customer convenience. TML can provide most strain gauges with the type of lead wires requested by the customer. Please feel free to contact our sales representative regarding gauge lead wires.
EXTENSION LEAD WIRES
- Vinyl lead wires (standard length : 1m, 3m and 5m)
- Enamel lead wires (standard length : 0.3m, 0.5m and 1m)
- Cross-linked vinyl sheathed wire (standard lengths : 1m, 3m and 5m)
- Cross-linked polyethylene sheathed wire (standard lengths : 1m, 3m and 5m)
- Fluorinated resin sheathed wire (standard lengths : 1m, 3m and 5m)
- Special wire for temperature-integrated gauge (standard lengths : 1m, 3m and 5m)
Vinyl lead wires (standard length : 1m, 3m and 5m)
Vinyl lead wires are widely used as strain gauge lead wires, and are available in a variety of types. Because the vinyl sheath can be colored, these wires allow color-coding for rosette gauges. The stranded core wires are flexible and easy to handle, and allow easy wire connection and terminal attachment.
- ·Small diameter vinyl wires
- These lead wires feature a thin vinyl sheath and small diameter core wires to achieve an outside diameter of 0.4mm. They are used for wiring in tight spaces. The stranded wires are flexible and minimize breakage due to repeated bending.
- ·Shielded vinyl wires
- This lead wire consists of three 0.08mm2 stranded vinyl wires spirally covered with aluminium foill. The outside diameter is 3mm. This lead wire offers a noise shielding function.
| Lead wire type | Core/diameter (cross sectionarea) |
Applicable temperature (°C) |
Total resistance oflead wire per meter (Ω) |
Outside sheath dimensions (mm) |
Length per roll (m) |
| 0.08mm2 paralleled vinyl lead wire |
7/0.12 (0.08mm2) |
-20~+80 | 0.44 | 1.1×2.2 | 200 |
| 0.08mm2 3-wire paralleled vinyl lead wire |
1.1×3.3 | ||||
| 0.08mm2 twisted vinyl lead wire |
7/0.12 (0.08mm2) |
-20~+80 | 0.44 | ø1.6 | — |
| ø1.9 | |||||
| 0.08mm2 3-wire twisted vinyl lead wire |
|||||
| 0.11mm2 paralleled vinyl lead wire |
10/0.12 (0.11mm2) |
-20~+80 | 0.32 | 1.4×2.8 | 200 |
| 0.11mm2 3-wire paralleled vinyl lead wire |
1.4×4.2 | 100 | |||
| 0.3mm2 paralleled vinyl lead wire |
12/0.18 (0.3mm2) |
-20~+80 | 0.12 | 1.9×3.8 | 200 |
| 0.3mm2 3-wire paralleled vinyl lead wire |
1.9×5.7 | 100 | |||
| 0.5mm2 paralleled vinyl lead wire |
20/0.18 (0.5mm2) |
-20~+80 | 0.07 | 2.5×5.0 | 100 |
| 0.5mm2 3-wire paralleled vinyl lead wire |
2.1×6.3 | ||||
| 0.02mm2 twisted vinyl lead wire |
5/0.07 (0.02mm2) |
-20~+100 | 1.8 | ø0.8 | — |
| 0.02mm2 3-wire twisted vinyl lead wire |
ø1.9 | ||||
| 3mm-dia. 3-core shielded vinyl lead wire |
7/0.12 (0.08mm2) |
-20~+80 | 0.44 | ø3.0 | 200 |
| 5mm-dia. 3-core shielded vinyl lead wire |
7/0.26 (0.3mm2) |
-20~+80 | 0.1 | ø5.0 | 200 |
Enamel lead wires (standard length : 0.3m, 0.5m and 1m)
Enamel lead wires have a single core covered with a resin sheath. Heat resistance and handling methods vary depending on the sheath type. Because the wire mass and diameter are small, enamel lead wires are used for strain measurement of rotating specimens and measurement of multiple points located in close proximity. Since the enamel lead wire contains one core covered with a thin sheath, it must be handled with care.
- ·Polyurethane lead wires
- Polyurethane lead wires allow easy post-processing because the sheath can be removed with a soldering iron. The sheath is not strong, therefore, polyurethane wires must be handled with care.
- ·Polyester lead wires
- Polyester lead wires have a stronger sheath than urethane wires, but require a special peeling agent to remove the sheath (which cannot be removed with a soldering iron).
- ·Polyimide lead wires
- Polyimide lead wires have a stronger sheath than polyester wires. (A soldering iron cannot be used for post-processing.)
| Lead wire type | Core/ diameter |
Applicable temperature (°C) |
Total resistance oflead wire per meter (Ω) |
Outside sheath dimensions (mm) |
Length per roll (m) |
| 0.14mm-dia. Polyurethane lead wire | 1/0.14 | -10~+120 | 2.5 | ø0.16 | — |
| 0.18mm-dia. Polyurethane lead wire | 1/0.18 | 1.5 | ø 0.20 | ||
| 0.14mm-dia. Polyester lead wire | 1/0.14 | -196~+200 | 2.5 | ø0.16 | — |
| 0.18mm-dia. Polyester lead wire | 1/0.18 | 1.5 | ø0.20 | ||
| 0.14mm-dia. Polyimide lead wire | 1/0.14 | -269~+300 | 2.5 | ø0.16 | — |
| 0.18mm-dia. Polyimide lead wire | 1/0.18 | 1.5 | ø0.20 |
Cross-linked vinyl sheathed wire (standard lengths : 1m, 3m and 5m)
The cross-linked vinyl sheath provides improved resistance against environmetal elements. It is often used for underwater measurement under ordinary temperature.
| Lead wire type | Core/diameter (cross sectionarea) |
Applicable temperature (°C) |
Total resistance oflead wire per meter (Ω) |
Outside sheath dimensions (mm) |
Length per roll (m) |
| 0.14mm2 2-wire twisted cross-linked vinyl sheathed lead wire |
7/0.16 (0.14mm2) |
-20~+100 | 0.24 | ø3.0 | — |
| 0.09mm2 3-wire twisted cross-linked vinyl sheathed lead wire |
7/0.127 (0.09mm2) |
0.4 | ø2.0 | 200 | |
Cross-linked polyethylene sheathed wire (standard lengths : 1m, 3m and 5m)
The cross-linked polyethylene sheath offers higher durability than the cross-linked vinyl sheath. Cross-linked polyethylene sheathed lead wires can be used in steam, warm water and concrete with virtually no insulation degradation.
| Lead wire type | Core/diameter (cross sectionarea) |
Applicable temperature (°C) |
Total resistance oflead wire per meter (Ω) |
Outside sheath dimensions (mm) |
Length per roll (m) |
| 0.09mm2 3-wire twisted cross-linked polyethylene sheathed lead wire |
7/0.127 (0.09mm2) |
-60~+125 | 0.4 | ø2.0 | — |
Fluorinated resin sheathed wire (standard lengths : 1m, 3m and 5m)
With a fluorinated resin sheath, these lead wires can be used in a wide range of temperature from extremely low to high temperatures. Fluorinated resin resists most chemicals. Surface treatment (tetra-etching) is required for some coatings.
| Lead wire type | Core/diameter (cross sectionarea) |
Applicable temperature (°C) |
Total resistance oflead wire per meter (Ω) |
Outside sheath dimensions (mm) |
Length per roll (m) |
| 0.18mm2 3-wire twisted fluorinatedresin(FEP) sheathed lead wire |
7/0.18 (0.18mm2) |
-269~+200 | 0.2 | ø2.0 | 100 |
| 0.2mm-dia. 3-wire twisted fluorinatedresin(FEP) sheathed lead wire |
1/0.2 | 1.2 | ø1.1 | — | |
| 0.04mm2 3-wire twisted fluorinatedresin(FEP) sheathed lead wire |
7/0.08 (0.04mm2) |
-40~+200 |
1.1 | ø1.0 | — |
| 0.14mm2 3-wire twisted cross-linked fluorinated resin(PTFE) sheathed lead wire |
7/0.16 (0.14mm2) |
-269~+260
NB: Also |
0.24 | ø1.9 | 100 |
| 0.2mm-dia. 3-wire twisted cross-linked fluorinated resin(PTFE) sheathed lead wire |
1/0.2 |
1.05 | ø1.1 | — |
Special wire for temperature-integrated gauge (standard lengths : 1m, 3m and 5m)
Special wires for temperature-integrated gauge consist of 2-core copper and 1-core constantan. To extend this wire, the exclusive wire should be applied properly.
| Lead wire type | Core/diameter (cross sectionarea) |
Applicable temperature (°C) |
Total resistance oflead wire per meter (Ω) |
Outside sheath dimensions (mm) |
Length per roll (m) |
| 0.08mm2 3-wire paralleled vinyl leadwire |
7/0.12 (0.08mm2) |
-20~+80 | 0.44 | 1.2×3.6 | — |
| 0.2mm-dia. 3-wire twisted fluorinatedresin(FEP) sheathed lead wire |
1/0.2 | -269~+200 | 1.05 | ø1.1 | — |
