2S8: Keeping Out Environmental Contaminants

Meredith Christman , Product Marketing Manager, IMI Sensors, Division of PCB Piezotronics, Inc.


In dusty or wet vibration monitoring applications, sealing of the sensor itself as well as sealing of the cable to the sensor is of prime importance in order to avoid contamination of the signal. But how sealed is it?  Is there a way to quantify “sealed”?  That’s where ingress protection (IP) ratings come into play.  The IP rating system provides specific levels of “sealedness” and details on the specific tests that need to be successfully passed in order to achieve a particular level.


Ms. Christman is currently the Product Marketing Manager for IMI Sensors, a Division of PCB Piezotronics, Inc. In that capacity, she is responsible for product development and management of the company’s industrial and energy product lines that include accelerometers, 4-20 mA transmitters, pressure transducers and switches. Prior to her current role, Meredith worked for ten years as Product Manager of Air Management Products with Roberts-Gordon LLC where she was responsible for product development and management of the company’s DOAS cooling and indirect-fired heating equipment. Ms. Christman graduated in 2003 from UB School of Management with an MBA in finance and international management. She completed her undergraduate education at Canisius College in 2001. Ms. Christman sits on the Board of Directors of the Pet Emergency Fund. She also volunteers with the Martin House Restoration Corporation and Parkside Community Association.