Sensia 3300 EFM, Installation, Operation & Maintenance Manual

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Table 1.4—Flow Rate Standards
Standard Description O
ri
fic
e
N
uFl
o C
on
e
Li
ne
ar P
ul
se
O
ut
pu
t
Ven
tur
i
AGA 3
(1992)
The Scanner 3300 supports the orifice metering calculations described in AGA
Report No. 3 (1992). This meter covers pipe sizes of nominal 2-in. and larger;
there is no stated maximum limit, but the largest size listed in the standard is
nominal 36 inch. Beta ratio must lie between 0.1 and 0.75. The AGA 3 orifice
meter can be used to measure natural gas and liquids.
♦
AGA 3
(2012)
The Scanner 3300 supports the orifice metering calculations described in
AGA Report No. 3 (2012). The AGA 3 orifice meter covers pipe sizes of
nominal 2-in. and larger; there is no stated maximum limit, but the largest size
listed in the standard is nominal 36-in. Beta ratio must lie between 0.1 and
0.75. The 2012 report offers an improved expansion factor correction and is
recommended for use except where contractual or regulatory requirements
specify the 1992 standard. The AGA 3 orifice meter can be used to measure
natural gas and liquids.
♦
ISO 5167-2
(2003)
ISO 5167-2 describes the measurement of natural gas and liquids with an
orifice meter using pipe sizes of nominal 50 mm (2 in.) to a maximum of 1000
mm (39 in.). Beta ratio must lie between 0.1 and 0.75. In ASME MFC-3M
(2004), the ISO-5167 orifice flow calculation was adopted without modification.
The ISO orifice meter can be used to measure natural gas and liquids.
♦
ISO 5167-4
(2003)
ISO 5167-4 provides information for calculating flow rates with Venturi tubes.
It is applicable only to Venturi tubes in which the flow remains subsonic
throughout the measuring section and where the fluid can be considered
as single-phase. In addition, each of these devices can only be used within
specified limits of pipe size, roughness, diameter ratio and Reynolds number.
ISO 5167 4 is not applicable to the measurement of pulsating flow. It does not
cover the use of Venturi tubes in pipes sized less than 50 mm or more than
1200 mm, or for where the pipe Reynolds numbers are below 20000.
♦
ISO 5167-5
(2016)
ISO 5167-5 specifies the geometry and method of use (installation and
operating conditions) of cone meters when they are inserted in a conduit
running full to determine the flow rate of the fluid flowing in the conduit.
♦
ASME
MFC-14M
(2003)
For low flow applications, the Scanner 3300 supports the small bore orifice
described in ASME MFC-14M for use with nominal 1/2-in. to 1-1/2-in. pipe
sizes. Beta ratio must lie between 0.1 and 0.75
.
The ASME small bore orifice
meter can be used to measure natural gas and liquids.
♦
AGA 7 (2006) AGA 7 provides the measurement standards used to calculate natural gas
flow rates from linear pulse output meters, including turbine meters, vortex
shedding meters, pulser-equipped positive displacement (PD) meters, Coriolis
meters having volumetric pulse output, and other types. Linear pulse output
meters can be used to measure natural gas and liquids.
♦
Miller
Handbook,
Third Ed.
Richard Miller’s Flow Measurement Engineering Handbook provides definitive
information on selecting, sizing, and performing pipe-flow-rate calculations,
using ISO and ANSI standards in both SI and US equivalents. This reference
also presents physical property data, support material for important fluid
properties, accuracy estimation and installation requirements for all commonly
used flow meters. Applies to cone wafer only.
15
Scanner 3300 EFM Section 1