Signal Conditioning Basics for ICP® & Charge Output Sensors

These precautionary measures should be followed to reduce risk of damage or failure in ICP® sensors:

1.) Do not apply more than 20 mA constant current to ICP® sensors or in-line amplifiers. 2.) Do not exceed 30 VDC supply voltage. 3.) Do not apply voltage without constant current protection. Constant current is required for proper operation of ICP® sensors 4.) Do not subject standard ICP® sensors to temperatures above 250 °F (121 °C). Consult a PCB Applications Engineer to discuss testing requirements in higher temperature environments. 5.) Most ICP® sensors have an all-welded hermetic housing. However, due to certain design parameters, certain models are epoxy sealed. In such cases, high humidity or moist environments may contaminate the internal electronics. In such cases, bake the sensors at 250 °F (121 °C) for one or two hours to evaporate any contaminants. 6.) Many ICP® sensors are not shock-protected. For this reason, care must be taken to ensure the amplifier is not damaged due to high mechanical shocks. Handle such sensors with care, so as not to exceed the maximum shock limit indicated on the specification sheet.