Farwest Corrosion Control Co.

The Watchdog P2S-AC makes it possible to obtain critical CP field data, such as AC corrosion current density, induced AC voltage, critical bond current, and IR-drop free (instant-OFF) potential, that were previously difficult or costly to measure. Installed at a CP test point with a dual coupon test station or at a critical bond, the P2S-AC delivers accurate and reliable data to the Pipeline Watchdog website via GSM or geostationary satellite telemetry. The P2S-AC is an ideal tool to better understand AC corrosion issues. Use it to log data during field studies, then permanently monitor the effectiveness of your AC mitigation system. The P2S-AC transmits regular readings at a programmable interval, with alarms for out-of-normal conditions. Knowing native potential, ON potential, and OFF potential gives the CP professional powerful data to analyze the effectiveness of the cathodic protection system. The unit can function as a CP data logger, taking and storing measurements as often as every 15 seconds. Use it to perform field studies on variable effects on your CP system such as: changing electric transmission line loads, electric rail effects, crossing pipeline interference, and variable soil conditions. The 2 GB SDRAM card can hold several months of data, which can be transmitted to the user via the GSMGPRS cellular link or retrieved manually.