Rössel-Messtechnik GmbH

CENTROCAL GmbH

Lohstr. 2
59368 Werne
Germany

Tel.: +49 2389 409-02
Fax: +49 2389 409-80
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CENTROCAL and ROESSEL-Messtechnik combine all desired service offers under one roof at the central plant in Werne. Quality products and independent consulting services go hand in hand. Short communication distances, transfer of know-how and intensive cooperation create synergies, benefiting mainly the customers. Centrocal calibrates resistance thermometers and thermocouples as well as electronic and direct display contact thermometers.

Holder of an accredited calibration certificate

CENTROCAL issues calibration certificates for temperature sensors.CENTROCAL calibrates resistance thermometers and thermocouples as well as electronic and directdisplay contact thermometers. Quality assurance of the calibration is guaranteed for the customer by the traceability of the temperature sensor according to the DIN/EN/ISO 9000 series.

CENTROCAL is accredited by the ''Deutscher Kalibrier Dienst -DKD'' under DKD-K-09701, and has established a quality management system in accordance with EN 17025. The accreditation was done by the DKD at the ''Physikalisch Technische Bundesanstalt - PTB'' at Braunschweig and Berlin.

Further informations at: www.dkd.info/de/_laboratorien.htm.

When exact temperature measurement, the measuring of very high or very low temperatures or extreme operational conditions are the issue, then comprehensive consulting of and detailed application related discussions with the user are always the starting point. The individual requirements must be exactly defined. Only after that the best suited testing and calibration method is selected.

The laboratory meets highest standards.

Exact analyses, comprehensive and exacting tests are carried out and certified in state-of-theart testing and calibration laboratories.At the same time the intensive research and development work creates a solid base for temperature measurement in the future.

Among others the following instruments are available for the calibration of temperature sensors:

• Oil baths from - 40 °C to 250 °C
• Fluidized sand baths from 100 °C to 700 °C
• Horizontal and vertical tubetype furnaces up to 1300 °C
• Furnace for fixed point cells

Defining fixed points of the ITS 90 scale:

• Water triple point 0.01 °C

Solidification points:

• Tin (Sn) 231.928 °C
• Zinc (Zn) 419.527 °C
• Aluminium (Al) 660.323 °C
• Silver (Ag) 961.78 °C

Heat pipes from 150 °C to 1000 °C

PC-controlled automatic calibration and protocol equipment

High-precision measuring equipment and indicators, multimeters, standard resistors, voltage sources and standards

Resistance thermometers for defining the ITS 90 scale up to 961.78 °C (Ag point) Thermocouples for reference measurements up to 1600 °C