NEW WATER METER Wehrle 1/2"; l=110mm Cold water

Description

1pcs  Brand NEW  metric water meter. Primary EU certification.
FOR Cold water!
Horizontal or vertical  installation.
Each Package contain two EU standard fittings for each meter.
Q3 2.5 m3/h DE-14-MI001-PTB008
T30; R80H/R50V; 1,6MPa
l=110mm
Infos on MID - Measurement Instrument Directive Comparison of previous designations and meter sizes in accordance with EEC factory calibration with the new MID specifications
A new period accounting method for users and manufacturers of water meters has already been in use since 30 October 2006 - the MID (Measurement Instrument Directive) came into force. The European Council Directive on Measurement Instruments describes how measurement instruments should be constructed, how the conformity (previously, calibration) of the measurement instruments with the MID can be declared and how these should then be introduced in the areas subject to calibration legislation. The familiar device designations and terms must give way to new designations: Calibration becomes declaration of conformity with the MID The hitherto familiar calibration in accordance with the EEC certifi cation regulations will be replaced by conformity with the MID, which the manufacturer will declare. The permissible procedures are described in the MID and will be monitored by government or private bodies referred to as “Designated Authorities”. By means of a written declaration of conformity, the manufacturer will certify that the meters produced are in conformity with the requirements of the MID and that the certifi cation standards are continually adhered to by means of his QM system. Error limits remain in force The permissible error limits are regulated across Europe by the MID and correspond with the hitherto familiar values. This means that in the future, water meters may also measure with an accuracy of +/-5% in the lower fl ow range and +/-2% in the permanent load range. The calibration remains in force The MID makes no provisions with respect to the calibration. That means that the calibration period is nationally regulated in the respective countries. In Germany, for example, 6 years will continue to apply to cold water meters and 5 years to hot water meters. The metrological Class becomes the Q3/Q1 ratio – the Ratio – the Classes have served their time The previous meter designations and fl ow rate ratios will be re-arranged in accordance with the MID. The classifi cation into the metrological Classes A, B and C will be superseded by the Q3/Q1 ratio (the Ratio). You will fi nd a potential comparison of previously EEC calibrated meters with MID-approved meters in the table on page 2. In general, the classifi cation of the meters in accordance with the MID places higher demands on the meters.