One of three wires of this strain gauge is made of copper-nickel alloy, while other two wires are made of ordinary copper. A T-type thermocouple is composed by a copper-nickel wire and a copper wire. Strain measurement by quarter bridge 3-wire method and temperature measurement by thermocouple are possible with one strain gauge. This gauge must be measured by TML data loggers.

Main Test Materials Metal Materials Backing Epoxy
Operating Temperature -20 to +80°C Materials Element Cu-Ni alloy foil
T-thermocouple
Compensation range +10 to +80°C Strain limit 3%
(30000×10-6)
Bonding adhesive CN,P-2 Fatigue life at room temp. 1×106
(±1500×10-6)

 

Single element(G.F. 2.1 approx.)

0.08mm2 PVC lead wire pre-attached
Total resistance of lead wire per meter:0.44(Ω) (as for copper wire)

FLA straingauge schematic

 

bridge circuit schematic

 

type gauge
length
(mm)
gauge
width
(mm)
Backing
length
(mm)
Backing
width
(mm)
resistance
(Ω)
Lead wires length
FLA-1T-11-3LT
FLA-1T-17-3LT
FLA-1T-23-3LT
1 1.3 5 2.5 120 3-wire 3m
FLA-2T-11-3LT
FLA-2T-17-3LT
FLA-2T-23-3LT
2 1.5 6.5 3 120 3-wire 3m
FLA-5T-11-3LT
FLA-5T-17-3LT
FLA-5T-23-3LT
5 1.5 10 3 120 3-wire 3m

 

Temperature integrated gauges are available for other series of strain gauges. Please contact Feteris Components for details.