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Push The Edge Of The Strain Envelope with Resistance to Ground.
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We demonstrates the resistance to ground of the Micro-Measurements WK-Series strain gage (sometimes-spelled gauge). Don’t try this on competitors’ products!
Micro-Measurements WK-Series of fully encapsulated K-alloy gages with high-endurance leadwires offer the widest temperature range and most extreme environmental capability of any general-purpose gage. The devices feature a normal temperature range of –269°C to +290°C, and a short-term range of –269°C to +400°C.
Two of the most important measurements used to verify the quality of a strain gage installation are insulation resistance (leakage to ground) and shift in gage resistance due to installation procedures. While these two measurements are not a complete guarantee of eventual proper strain gage performance, any installation that produces questionable values should not be relied upon where accuracy of results is necessary.
Insulation resistance in excess of 20,000 megohms should be expected for foil strain gages when installed under laboratory conditions. A value of 10,000 megohms should be considered minimum. A reading below this value generally indicates trapped foreign matter, moisture, residual flux or backing damage due to soldering, as well as incomplete solvent evaporation from an over coating.
The 1300 Gage Installation Tester is used to verify the quality of an installed strain gage , as well as the complete gage installation, including leadwires. A carefully selected individualized test voltage is used for each measurement mode. Operation is by push buttons.
he 1300 Gage Installation Tester:
Micro-Measurements WK-Series of fully encapsulated K-alloy gages with high-endurance leadwires offer the widest temperature range and most extreme environmental capability of any general-purpose gage. The devices feature a normal temperature range of –269°C to +290°C, and a short-term range of –269°C to +400°C.
Two of the most important measurements used to verify the quality of a strain gage installation are insulation resistance (leakage to ground) and shift in gage resistance due to installation procedures. While these two measurements are not a complete guarantee of eventual proper strain gage performance, any installation that produces questionable values should not be relied upon where accuracy of results is necessary.
Insulation resistance in excess of 20,000 megohms should be expected for foil strain gages when installed under laboratory conditions. A value of 10,000 megohms should be considered minimum. A reading below this value generally indicates trapped foreign matter, moisture, residual flux or backing damage due to soldering, as well as incomplete solvent evaporation from an over coating.
The 1300 Gage Installation Tester is used to verify the quality of an installed strain gage , as well as the complete gage installation, including leadwires. A carefully selected individualized test voltage is used for each measurement mode. Operation is by push buttons.
he 1300 Gage Installation Tester:
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