The PH10 is a smart pH sensor and transmitter that features an industry first — a rugged polyvinylidene difluoride (PVDF) body. The device can be calibrated at any time against a standard or referen
ce transmitter, or laptop PC, in the instrument shop. The calibration parameters are then stored in an onboard memory chip. When performing a field calibration, operators simply take the pre-calibrated sensor to the field, connect it to the transmitter, and allow the transmitter to upload the calibration parameters. The sensor’s design incorporates a flat membrane sensing electrode and an ion barrier to protect the internals and reduce fouling. The sensor also stores other parameters, such as glass resistance, reference resistance, date of manufacture, serial number and history logs to help manage the deployment and performance of the pH sensor. — Schneider Electric, Foxboro, Mass.