TECHNICAL DESCRIPTION
MULTICAL
®
61
5512-622 GB/01.2011/Rev. E1
9
2.4
Accuracy
MPE according to OIML R 49 MPE (maximum permissible error range)
Meter approved 0.1…30°C
±
5 % in range Q
1
≤
Q
<
Q
2
,
±
2 % in range Q
2
≤
Q
≤
Q
4
30…90°C
±
5 % in range Q
1
≤
Q
<
Q
2
,
±
3 % in range Q
2
≤
Q
≤
Q
4
Diagram 1
OIML R 49 requirements to water meters
2.5
Materials
Wetted parts
Case, gland
DZR brass (Dezincification brass)
Case, flange
Stainless steel 1.4408
Transducer
Stainless steel 1.4401
Gaskets
EPDM
Measuring tube
Thermoplastic, PES 30% GF
Reflectors/mirrors Stainless steel 1.4305, 1.4306, 1.4401
Flow sensor case
Base
Thermoplastic, PBT 30% GF
Cover
Thermoplastic, PC 20% GF
Wall bracket
Thermoplastic, PC 20% GF
Calculator case
Top
Thermoplastic, PC
Base
Thermoplastic, ABS with TPE gaskets (thermoplastic elastomer)
Internal cover
Thermoplastic, PP
Flow sensor cable
Copper cable with silicone jacket and inner Teflon insulation
Q
1
: Minimum flow velocity
Q
2
: Transition flow velocity
Q
3
: Permanent flow velocity
Q
4
: Overload flow velocity
