SOLLICH 0901 COR
Resistance Corrosion Meter

Resistance Corrosion Meter is a stationary measuring device that serves for determination of corrosion losses and corrosion rates of metals in industrial installations using resistive corrosion metering technique.

Mounting on a 35 mm DIN rail.

U: 12 or 24 Vdc

RS 485 communication interface.

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Documentation

and technical data

Description

Resistance Corrosion Meter is a stationary measuring device that serves for determination of corrosion losses and corrosion rates of metals in industrial installations using resistive corrosion metering technique.

The method consists in equipping the monitored objects with properly selected resistive sensors which, as a result of corrosion processes, gradually increase their electrical resistance. Tracking changes in resistance over time enables precise determination of corrosion progress.

The measurements are carried out in a comparative system, i.e. it measures the resistance increase of the corrosive element (Rc), exposed to the aggressive environmental action, relative to the resistance of the reference element (Rr) protected against such interaction. The device is intended for both field measurements and laboratory conditions. In particular, the functions of the device allow monitoring the corrosion hazard and the effectiveness of cathodic protection of underground steel structures, such as pipelines, tanks and other industrial facilities.

Device functions

Stationary corrosion meter controlled by microprocessor SOLLICH 0901 COR is an autonomous meter that enables the user to program a measurement session. It includes:

  • testing and auto-calibration of the device before making measurements,
  •  high accuracy series of resistance measurements of the corroding (Rc) and reference element (Rr)of the connected sensor,
  • mathematical analysis of a series of measurement results and determination of average resistance values ​​Rc and Rr, resistance ratio and standard deviation,
  • presentation of measurement results with the possibility of writing to the internal memory of the corrosion meter,
  • calculation of corrosion loss in μm and corrosion rate in μm / year,
  • deleting the last saved data,
  • browsing of previously registered results with the possibility to calculate corrosion losses and corrosion rates,
  • setting the device operation parameters from a computer via the RS 485 port.
  • mounting on a 35 mm DIN rail
  • power supply to an external DC power supply.

Technical data

 ParameterValue:
1Resistance measurement range:1 ¸ 600 mΩ
2Resistance measurement error Rr/Rc≤ 0,1 %
3Maximim resolution:10 nΩ
4Max. number of sensors180
5Memory capacity8000 results
6Temperature range-10°C ¸ +40°C
7Time of measurementok. 18 s w in FASTok. 48 s w in BEST
8Power consumption after switching off230 mA
9Power consumption during resistance measurement520 mA
10Power12 Vdc
11Dimensions of the device115 x 90 x 70 mm
12Weight330 g
13Communication interfaceRS 485

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