KROHNE OPTIFLUX 2000 EN - Manual (Page 36)

6
TECHNICAL DATA
36
OPTIFLUX 2000
www.krohne.com 4/2014 - 4000839504 - HB OPTIFLUX 2000 R04 en
6.3.2 MID Annex MI-001
All new designs of water meters that are to be used for legal purposes in Europe require
certification under the Measurement Instrument Directive (MID) 2004/22/EC.
Annex MI-001 of the MID applies to water meters intended for the measurement of volume of
clean, cold or heated water in residential, commercial and light industrial use. An EC-type
examination certificate is valid in all countries of the European Union.
The OPTIFLUX 2300 has an EC-type examination certificate and can be verified to the MID Annex
MI-001 for water meters with diameter DN25...DN1600. The conformity assessment procedure
followed for OPTIFLUX 2300 is Module B (Type Examination) and Module D (Quality Assurance of
the Production Process).
The maximim permissible error on volumes delivered between Q2 (transitional) flow rate and Q4
(overload) flow rate is ±2%.
The maximum permissible error on volumes delivered between Q1 (minimum) flow rate and Q2
(transitional) flow rate is ±5%.
Q1 = Q3 / R
Q2 = Q1 * 1.6
Q3 = Q1 * R
Q4 = Q3 * 1.25
Figure 6-3: ISO flow rates added to figure as comparison towards MID
X:
X: X: X: Flow rate
Y [%]:
Y [%]: Y [%]: Y [%]: Maximum measuring error