To further enhance the performance, an application‐specific Stern‐Geary variable (B value) is calculated and updated every measuring cycle. There is no need to manually update the B value because of process changes. During the measurement cycle, datalogger also performs an automated electrochemical noise (ECN) measurement, which in combination with the corrosion rate data can provide a measurement of localized corrosion (pitting). The data logger works with Metal Samples' two-electrode and three‐electrode LPR probes. Probes are available in a variety of mounting types and materials to suit almost any type of installation.
The MS3500L takes probe readings on a user-programmable logging interval. Readings are time and date stamped as they are taken, then stored to memory. Between readings, the instrument remains in a “sleep” mode to conserve main battery power. The instrument’s memory is capable of storing more than 100,000 readings and is stored in non-volatile Flash memory.
Stored data can be uploaded to any PC as a comma-delimited ASCII text file. Because the data is in ASCII text format, it can be imported into any standard data analysis program such as Microsoft Excel. Data can also be reviewed on the instrument’s LCD display for quick reference.
Stored data can be downloaded directly to a certified Data storage device. This eliminates the need to remove the MS3500L from its site, or to bring a laptop PC to the site. This can be particularly useful when collecting data from multiple MS3500L Data Loggers. And since the MS3500L is intrinsically safe, data can be downloaded from the MS3500L even in hazardous locations.
The MS3500L also offers an optional 4-20mA current loop output. This feature allows data from the instrument to be fed directly to any industrial process computer that accepts analog inputs.
The instrument is housed in a stainless steel NEMA 4X / IP 66 enclosure, and all external connections are weather-proof. This makes the MS3500L suitable for use in almost any indoor or outdoor environment. |
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