This gauge is designed for successful strain measurement on the concrete surface. It has a thin stainless-steel backing which prevents the penetration of moisture from the reverse side. It provides good electrical insulation to the concrete surface. The WFLM gauge has a moistureproof overcoating and integral lead in addition to stainless-steel backing. Stable measurement can be achieved by bonding the gauge with PS adhesive.
Datasheet: FLM-WFLM series Metal backing strain gauge
| Main Test Materials | Concrete, mortar | Materials Backing | Stainless steel |
|---|---|---|---|
| Operating Temperature | -20 to +80°C | Materials Element | Ni-Cr alloy foil |
| Compensation range | +10 to +80°C | Strain limit | 0.5% (5000×10-6) |
| Bonding adhesive | PS | Fatigue life at room temp. | 1×105 (±1000×10-6) |
Single element(G.F. 2.0 approx.)
| type | gauge length (mm) |
gauge width (mm) |
Backing length (mm) |
Backing width (mm) |
Backing thickness (mm) |
resistance (Ω) |
|---|---|---|---|---|---|---|
| FLM-30-11 | 30 | 0.5 | 60 | 18 | 0.12 | 120 |
| FLM-60-11 | 60 | 0.7 | 90 | 18 | 0.12 | 120 |
Single element(G.F. 2.0 approx.) [waterproof type]
0.09mm2 3-wire paralleled Polythylene leadwire pre-attached
Total resistance per meter : 0.4 (Ω)
Lead wire length : 3-wire paralleled Polyethylene lead wire of 2m long
| type | gauge length (mm) |
gauge width (mm) |
Backing length (mm) |
Backing width (mm) |
Backing thickness (mm) |
resistance (Ω) |
|---|---|---|---|---|---|---|
| WFLM-30-11-2LT | 30 | 0.5 | 60 | 18 | 4 | 120 |
| WFLM-60-11-2LT | 60 | 0.7 | 90 | 18 | 4 | 120 |