![Startup and commissioning at the Dzhubga–Lazarevskoye–Sochi gas line](http://pipe-st.com/images/bodyblock/str18levoe-1.jpg)
Basic technical characteristics
of the CMS-PST-MetriCorr®-M
Parameter | Value |
---|---|
Corrosion rate, 2 channels | 0,001…50 mm/year |
OFF potential of the structure | 0… ±3 V |
ON potential of the structure relative to the reference electrode | 0… ±30 V |
AC voltage on the structure relative to the reference electrode | 0… 100 V |
AC / DC "structure - coupon" | 0…50 mА |
Local protector’s current, up to 2 channels | 0…±1 А |
Self-contained operation period of the underwater controller | 5 years |
![Installation scheme of CMS-PST-MetriCorr-M](http://pipe-st.com/images/bodyblock/poster-kontrkorr-more-en.jpg)
CMS-PST-MetriCorr®-M
The CMS-PST-MetriCorr®-M corrosion monitoring system (co-development with «Gazprom VNIIGAZ» LLC and «KATOD» CJSC) is designed for remote monitoring of corrosion parameters on the underwater steel pipelines via wireless communication channels (hydroacoustic and GSM).
![CMS-PST-MetriCorr®-M general view](http://pipe-st.com/images/bodyblock/str18pravoe.jpg)
An underwater controller reads the monitored parameters from sensors, probes, and electrodes connected thereto to save them in the non-volatile memory according to a preset measurement schedule. After that, according to a preset data-transmission schedule, the underwater controller transmits accumulated data via hydroacoustic modems to a controller located aboard ship or on a buoy. Then, this controller relays the received data via a GSM channel to a MCS-PST monitoring and control server.