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TECHNICAL DESCRIPTION
MULTICAL
®
41
5512-313 GB/01.2010Rev. C1
3
List of contents
1 General
Description ..........................................................................................................5
1.1 Mechanical
construction……………………………………………………………………………………………………………………….6
2 Technical
Data ..................................................................................................................7
2.1 Approved
meter data…………………………………………………………………………………………………………………………….7
2.2 Electrical data……………………………………………………………………………………………………………………………………….7
2.3 Mechanical data……………………………………………………………………………………………………………………………………7
2.4 Accuracy……………………………………………………………………………………………………………………………………………….8
2.5 Materials………………………………………………………………………………………………………………………………………………8
3 Type
Overview ..................................................................................................................9
3.1 Type number, MULTICAL
®
41……………………………………………………………………………………………………………….10
3.2 PROG
(A-B-CCC)…………………………………………………………………………………………………………………………………..11
3.3 CONFIG,
DD-E-FF-GG…………………………………………………………………………………………………………………………….12
3.4 DATA…………………………………………………………………………………………………………………………………………………..13
3.5 Other
functions……………………………………………………………………………………………………………………………………13
4 Dimensional
Sketches ....................................................................................................14
5 Pressure
Loss .................................................................................................................15
6 Installation .....................................................................................................................16
6.1
Installation requirements ……………………………………………………………………………………………………………………16
6.2 Installation angle for MULTICAL
®
41…………………………………………………………………………………………………….17
6.3
Straight inlet……………………………………………………………………………………………………………………………………….18
6.4
Installation example……………………………………………………………………………………………………………………………18
7 The
Calculator.................................................................................................................19
7.1
Measurement
and calculation…………………………………………………………………………………………………………….19
7.2
Push
buttons………………………………………………………………………………………………………………………………………19
7.3
Display
functions………………………………………………………………………………………………………………………………
…
20
7.4
Information codes……………………………………………………………………………………………………………………………….21
7.5
Reset
functions……………………………………………………………………………………………………………………………………22
8 The Flow Sensor..............................................................................................................23
8.1
Ultrasound
with piezo-ceramics…………………………………………………………………………………………………………..23
8.2
Principles……………………………………………………………………………………………………………………………………………23
8.3
The
transit
time method………………………………………………………………………………………………………………………23
8.4
Signal path………………………………………………………………………………………………………………………………………….25
8.5
Flow
limits…………………………………………………………………………………………………………………………………………..25
8.6 Guidelines for dimensioning the MULTICAL
®
41……………………………………………………………………………
……….
25