Applicable Standards; Configuration - Elster 6 Series Operation And Maintenance Manual

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3.2 Applicable Standards

The Ultrasonic Flow Meter Series 6 is manufactured to be in accordance
with European Directives: ATEX, PED, EMC and optionally MID.
If the meter is ordered for use at a location where European Directives are
NOT mandatory, the meter can alternatively be manufactured in compliance
with IECEx, FM Approval or CSA certificate for use in hazardous areas.
Applicable standards for the optional integrated flow computer functionality
are: AGA8-92 DC, SGERG-88, AGA-NX19 and ISO 6976.

3.3 Configuration

Several pairs of transducers are mounted in pairs on the flow cell of the
UFM. Each pair of transducers represents one individual measuring path.
There are two measuring path types on the Q.Sonic
and Swirl (double bounce). These are shown in Figure 3-1.
The Q.Sonic
combination results in a completely symmetrical path layout, ensuring the
most optimal accuracy. Figure
plus
Q.Sonic
UFM Series 6
Q.Sonic-plus
plus path layout consists of 2 axial paths and 4 swirl paths. This
.
Figure 3-1: Path Types
Operation and Maintenance
Ultrasonic Flow Meter Series 6
3-2 below shows the path layout of the
plus : Axial (single bounce)
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