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Reliability
Testing
QUALIFICATION
TESTING
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U.S. Sensor Corp. has developed a sealing method that prevents the moisture intrusion condition from occurring. Our proprietary process has been proven reliable in many applications. |
Our probe designs have also been subjected to environmental, electrical, and, physical testing to prove the longevity of the design. Below is a typical Qualification test for a probe design.
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Serialize and record readings from -40 to 180°C
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Thermal shock 10 cycles -40 to 180°C (Minimum 30 minutes at extremes and maximum 30 minutes between temperatures).
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Thermal soak 100 hours at 140°C and 80% of the rated max current.
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Vibration Testing
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Shock and drop
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Record readings from -40 to 180°C
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U.S. Sensor parts have passed these tests with temperature measurement changes of ±0.03°C (Typical) on probes with a tolerance of ±1.0°C The probe on the right experienced the Qualification Tests described above. The brass has become significantly tarnished, however, the thermistor performance changed by only 0.03°C. |
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