As a business we manufacture temperature sensors, one product we provide consists of an LM35CAZ/NOPB element with 3 x 1.000mtr 7/02 flexible silver plated copper leads,
a customer has reported that 10 pieces have failed (see below)
Sensors were rejected due to
- Consistently reading 150°C
- Intermittently reading 150°C
- Reading random temperatures.
One fail reported in January 2017.
Nine fails reported between June & September 2017.
We tested 3 x Temperature Sensors.
3 of the sensors were verified as failing during retest.
Notes attached contain details of findings - Sensor reported temperature values at ambient environment eg. Sensor # 1 read 24.1°C, Sensor # 2 read 23.7°C etc.
Return
- Sensor # 3 (150°C), 5 (random) and 8 (150°C) were deemed as defective
Does anybody know of a test proceder we could adopt to confirm the finished units are working correctly, please note we manufacture 1,000 per despatch so test would need to be speedy.
