RMS 621 10 Technical data
Endress+Hauser 63
Fig. 26: External display and operating unit for panel mounting (optional or available as accessory); dimensions in mm
(inches)
Operating elements Eight front-panel soft keys interact with the display (function of the keys is shown in the display).
Remote operation RS232 interface (3.5 mm (0.138 in) jack plug on front panel): configuration via PC with PC
operating software ReadWin
®
2000.
Real time clock • Deviation: 2.6 min per year
• Power reserve: 14 days
Mathematical functions Continuous calculation of dimensions, standard volumes, density, enthalpy, quantity of heat via
IAWPS-IF97
10.0.9 Certificates and approvals
CE approval The measurement system fulfils the requirements demanded by the EU regulations.
Endress+Hauser acknowledges successful unit testing by adding the CE mark.
Other standards and
guidelines
• EN 60529:
Degrees of protection by housing (IP Code)
• EN 61010:
Safety requirements for electrical measurement, control and laboratory instrumentation.
• EN 61326 (IEC 1326):
Electromagnetic compatibility (EMC requirements)
• NAMUR NE21, NE43
Standardization association for measurement and control in chemical and pharmaceutical
industries.
• IAWPS-IF 97
International applicable and recognised calculation standard (since 1997) for steam and water.
Issued by the International Association for the Properties of Water and Steam (IAPWS).
• OIML R75
International construction regulation and test specification for water energy managers from the
Organisation Internationale de Métrologie Légale.
• EN 1434 1, 2, 5 and 6
• EN ISO 5167
Flow measurement of fluids with throttle devices
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