Watchdog Mesh CP Rectifier Monitor with Optional GPS-Synchronized Current Interruption

The Watchdog Mesh is the most powerful cathodic protection remote monitoring system in the industry.  It is a fully integrated system that combines field-proven reliable hardware and powerful website features to provide a complete pipeline integrity monitoring solution.  Uniquely designed wireless "Mesh" sensor modules are physically and electrically isolated from the Watchdog Mesh base station, virtually eliminating lightning damage to the remote monitoring system.

Monitor multiple rectifiers at terminal or tank farms (within 100 yards) or multiple negative shunts with a single Watchdog Mesh base station and multiple "Mesh" sensor modules. The units can be powered from AC, DC, or solar systems.

• All configuration can be done over the air from the website
• Powerful report generation and data export to CPDM systems from the website
• Low-cost, straightforward monthly messaging cost
• GSM digital cellular communications in 120 countries; Inmarsat satellite communications anywhere in the world
• Professional and responsive direct-line customer support

Fail-Safe GPS Synchronized Interruption via the Watchdog Website

A fail-safe GPS synchronized current interrupter is available as a permanently installed option in the Watchdog Mesh System.  Generally supplied with a robust 100A mercury relay, additional options include a 100 amp AC or DC solid state relay for rapid cycling applications.  This combines the robust, surge-proof reliability of mercury relays with the fast switching speed of sold state relays.

• Interrupt groups of rectifiers from the web with just a few mouse clicks
• Real-time current interruption feedback generates a text message/e-mail alarm to the field survey crew if interruption problems occur at a rectifier, saving valuable survey time and eliminating post-discovery of bad data
• Mercury relay (or optional non-mercury mechanical relay) is in parallel with optional AC or DC solid-state relay for robust, fail-on, surge resistant permanently installed fast cycle interruption
• Pipe-to-soil high impedance voltmeter is part of the system- easily obtain rapid instant-off readings with a  programmable delay (250 msec to 60 sec)
• Easy to program for the web-cycle on/off times, start/stop times, start/stop days

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