Linear pattern precision pre wired gages with minature and medium length grids are for general purpose and stress analysis applications. Available with either two 1-meter leads or three 3-meter leads and 120 Ω or 350 Ω resistance. All models are compensated for steel.
The planar XY pattern (0 / 90°) allows precision strain measurement by eliminating the errors often associated with a stacked XY pattern. These gages are available with either two 1-meter leads or three 3-meter leads per grid and are compensated for steel.
The planar rosette pattern (0 / 45°/ 90°) allows precision strain measurement by eliminating the errors often associated with a stacked pattern. These gages are available with either two 1-meter leads or three 3-meter leads per grid and are compensated for steel.
Specifications See Spec Sheet for full specifications Strain Gage Construction Foil strain gage with embedded measuring grid Measuring Grid Material Constantan Thickness µm (microinch) 3.8 or 5 (150 or 197), depending upon strain gage type Carrier Material Polyimide Thickness µm (microinch) 45 ± 10 (1.772 ± 394) Connections PTFE wire, Ø - 0.051 mm², approximately 50 mm long, connected to AWG 28 ribbon cables (PVC insulated) through solder sleeves in 2- or 3-wire configurations Nominal Resistance Ω 120 or 350 depending upon gage Resistance Tolerance % ±0.35, with 0.6 mm and 1.5 mm grid length % ±1 Gage Factor approximately 2 (stated on package) Gage Factor Tolerance % ±1, with 0.6 mm and 1.5 mm grid length % ±1.5, temperature coefficient of gage factor 1/K [1/°F] (115 ± 10) x 10-6 [(64 ± 5.5) x 10-6, nominal value of gage factor temperature coefficient Specified on each package Applicable Bonding Materials Cold Cure Adhesives SG496, SG401 Heat Cure Adhesives TT300
Rated 5 out of
Great performancePrecise. We will keep using this sensor from Omega.
Date published: 2017-08-09
Rated 3 out of
I only buy these when I run out of others.These gages work fine once I get them installed. But the heavy wire splices near the gage complicates installation. The hook up end is just a tiny bit of bare wire - my preferred brand always makes long tinned ends which can be put directly around a screw terminal.
My application will be running at 350?F. The max temperature is listed as 320?F. Is there enough tolerance in the temperature rating of the grid/assembly, that I could use these grids for my application.
Asked by: KayB
Dear KayB we do not recommend using the strain gauges outside the operating range of : -10 to 155 (-14 to 320)
You will see erroneous readings due to thermal effects. Please see HBM family strain gauges for higher temperatures:
Kindly email pressure@omega,com if you have more questions
Answered by: SAE DVJ
Date published: 2020-04-03
Goal is tank level indication. Bench test: KFH-03-120-C1-11L1M2R on desk leg. Steel, square tubing, and plated. Sensors: axial position, wired full bridge. PLC input +/- 80mVDC. Excitation 1.5VDC. Bonded w/ Krazy glue. How can I resolution get it better?
Asked by: Boone
Thank you for your question, to get help with your specific application please email email@example.com with the details of your project and we'll be happy to help you!
Answered by: Pressure Eng
Date published: 2020-03-23
Do the packs come with adhesive?
Asked by: JIMMY321354
The adhesives do not come with the strain gages. They have to be ordered separately There are 3 types of adhesives available. SG496 is a one part methyl-based cyano-acrylate adhesive. SG401 is a one part ethyl-base cyano-acrylate adhesive. The TT300 adhesive kit is a 2 part epoxy. This kit also includes the one bottle each of acetone, Acid Primer, Neutralizer & Resin Solvent.
Answered by: JKengineer
Date published: 2020-02-21
Can these gauges be reused after being removed from a specimen?
Asked by: KotaAubs
Thank you for your question?
Most strain gauges will not work once they have been removed from a glued surface.
However you can try and have had some customers succeed in doing it onetime.
Answered by: application engineer je
Date published: 2019-06-25
Whats the difference between the 2-wire and 3-wire configuration? What signal does each wire carry?
Asked by: KF978
Hi, typically 3-wire strain gauges are used for lead wire temperature compensation. If the strain gauge is a 2-wire system, strain output from the bridge is affected by the temperature effect of the lead wire. To avoid such adverse effect, the 3-wire system is adopted. If 3 lead wires are connected to a strain gage, a half lead wire resistance is applied to the adjacent side of a bridge to compensate for the temperature effect of lead wires in bridge output. The temperature effect of the lead wires connected to a measuring instrument outside of the bridge is ignored because the input impedance of the measuring instrument is high. Our Tech Support engineer has also emailed you images to help answer your question. Email us back anytime if you need any further assistance. Thanks
Answered by: Jane
Date published: 2019-06-25
Does each linear pre-wired strain gauge contain a full Wheatstone bridge or would I have to purchase 4 to create one myself?
Asked by: Carlos12345
The KFH is a linear, single grid strain gauge. It is not a full Wheatstone bridge. Our Tech Support has emailed you a diagram of what complete Wheatstone bridge likes. Please contact our Tech Support if you have any further questions. Thank you.
Answered by: Jane
Date published: 2019-05-22
Is this priced per pack of 10?
Asked by: awright111
Thanks for your question. Yes, these are priced per pack of ten.