OMEGA®STRAIN GAGES
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CORNER ROSETTES AND STRESS RELIEF GAGES
To Order
TYPE SERIES PRICE NOMINAL GRID CARRIER BRIDGE TERMINAL
U Corner Rosette Encapsulated Gages
(Specify Model Number)
DIMENSIONS [MM] PERMITTED ACCESSORY
MODEL NO. OF 5
PER PKG
SG-13/120-RY91 $135 120 13.0 5.0 27.0 27.0 15 TP-3 1
SG-13/120-RY21 119 120 13.0 5.0 27.0 27.0 15 TP-3 2
SG-13/120-RY93 135 120 13.0 5.0 27.0 27.0 15 TP-3 1
SG-13/120-RY23 119 120 13.0 5.0 27.0 27.0 15 TP-3 2
RESISTANCE ENERGIZING PADS
(
Ω) A B C D VOLTAGE PART NO. FIG.
Diagrams to Actual Size
MAX
(V RMS)
RY91
Ribbon Leads - Temperature compensated to steel
RY21
Solder Pads - Temperature compensated to steel
RY93
Ribbon Leads - Temperature compensated to aluminum
RY23
Solder Pads - Temperature compensated to aluminum
Typical Strain
Gage Installation
30 AWG Or Ribbon Leads 20-28 AWG Instrumentation Wire
Fig. 1
Fig. 2 (Enlarged)
For Accessory Terminal Pads, see page E-25.
Terminal Pads for Stress Relief and Junction for Different Gage Wires
To Order
TYPE SERIES PRICE NOMINAL GRID CARRIER BRIDGE TERMINAL
U Stress Relief Encapsulated Gages
(Specify Model Number)
DIMENSIONS [MM] PERMITTED ACCESSORY
MODEL NO. OF 5
PER PKG
SG-1.5/120-SR11 $119 120 1.6 1.6 10.7 10.7 2.5 TP-2 1
SG-1.5/120-SR41 119 120 1.6 1.6 10.7 10.7 2.5 TP-2 2
SG-1.5/120-SR13 119 120 1.6 1.6 10.7 10.7 2.5 TP-2 1
SG-1.5/120-SR43 119 120 1.6 1.6 10.7 10.7 2.5 TP-2 2
RESISTANCE ENERGIZING PADS
(
Ω) A B C D VOLTAGE PART NO. FIG.
Diagram Fig.1 to Actual Size
MAX
(V RMS)
Diagram Fig.2 Enlarged 2 Times
SR11
Ribbon Leads - Temperature compensated to steel
SR41
Solder Pads - Temperature compensated to steel
SR13
Ribbon Leads - Temperature compensated to aluminum
SR43
Solder Pads - Temperature compensated to aluminum
For Accessory Terminal Pads, see page E-25.
E-15
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OMEGA®STRAIN GAGES
SPECIFICATIONS CHART
SG SERIES KFG SERIES
Foil strain gages are constructed by
embedding a foil measuring element into
a carrier.
Foil measuring grid Constantan foil 5 µm thick Constantan foil 6 µm thick
Carrier Polyimide Kapton
Substrate thickness 50 µm 15 µm
Cover thickness 25 µm 9 µm
Connection dimensions in (mm) [in] Solder pads or ribbon leads 27 AWG strand polyvinyl insulation
(30 long x.05 thick x 3 wide) (1 x 2) [.04 x .08]
[1.2 long x .002 thick x .012 wide]
Nominal resistance Stated in “to order” box 120 ±0.4 ohms
Resistance tolerance per package 0.5% 03%
Gage factor (µΩ/µ/µΩ) Approximately 2.0 2.10 ±10%
(actual value printed on each package)
Gage factor tolerance per package 1.0% 1.0%
Thermal Properties
Reference temperature 23°C/73°F 23°C/73°F
Service temperature:
Temperature characteristics:
Static measurements -30 to 250°C (-22 to 482°F) -20 to 100°C (-4 to 212°F)
Dynamic measurements -30 to 300°C (-22 to 572°F) -20 to 100°C (-4 to 212°F)
Steel 11 ppm°C (6.1 ppm°F) 10.8 ppm°C (6 ppm°F)
Aluminum 23 ppm°C (12.8 ppm°F) —
Uncompensated ±20 ppm°C (±11.1 ppm°F) —
Temperature compensated range -5 to 120°C (5 to 248°F) 10 to 80°C (50 to 176°F)
Tolerance of temp. compensation 1 ppm°C (0.5 ppm°F) 1 ppm°C (0.5 ppm°F)
Mechanical Properties
Maximum strain 3% or 30,000 µe 5% or 50,000 µe
Hysteresis Negligible Negligible
Fatigue (at ±1500 µe) > 10,000,000 cycles > 10,000,000 cycles
Smallest bending radius 3 mm (1⁄8 inch) 3 mm (1⁄8 inch)
Transverse sensitivity — Stated on each package
E-7
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EPG05
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