Scanner 2000 Steam Mass Flow Transmitter ... - Spirax Sarco

Scanner ® 2000 microEFM Section 1
NuFlo Cone Meter (DP Input). The Scanner 2000 supports steam measurement using industry-recognized
algorithms identified in the NuFlo Cone Meter User Manual. Fluid properties for steam are calculated
in accordance with the IAPWS Industrial-Formulation 1997 (IF-97) standard. Temperature is calculated
according to IF-97 for saturated steam, based on static pressure. Therefore, an RTD is not required. The
optional Steven wet correction method is supported for the measurement of vapor and fluid.
Averaging Pitot Tube Meter (Annubar ® ). The Scanner 2000 supports steam measurement based on ASME
MFC-12M -2006 flow rate methods for averaging pitot tube meters. Fluid properties are calculated in
accordance with the IAPWS Industrial-Formulation 1997 (IF-97) standard. Temperature is calculated
according to IF-97 for saturated steam, based on static pressure. Therefore, an RTD is not required. Wet
correction methods are not supported.
Compensated Liquid
The Scanner 2000 measures compensated petroleum liquid flow using an orifice, cone, liquid turbine, or
averaging pitot tube (Annubar ® ) flowmeter. Users can select either of two fluid property calculation methods
for use with any of these flowmeters.
• The “generic” fluid properties calculation method is used to measure liquids such as water or emulsions,
based on user-supplied viscosity values and either user-supplied density values or user-supplied liquid
thermal expansion coefficients.
• The API-2540 calculation method provides temperature corrections for the following petroleum liquids:
crude oil, gasoline, jet fuel, fuel oils, and lube oil.
Orifice Plate (DP Input). The Scanner 2000 calculates flow rates in accordance with AGA Report No. 3, Part
1 (1990) or ISO-5167 (2003) methods. When measuring liquids, the expansion factor (Y) is always equal to
1.0. Fluid property calculations for temperature-compensated measurements are based on API-2540 (1980),
Petroleum Measurement Tables.
NuFlo Cone Meter (DP Input). The Scanner 2000 calculates flow rates in accordance with industryrecognized
algorithms identified in the NuFlo Cone Meter User Manual. When measuring liquids, the
expansion factor (Y) is always equal to 1.0. Fluid property calculations for temperature-compensated liquids
are based on API-2540 (1980), Petroleum Measurement Tables.
Liquid Turbine Meter (Frequency Input). The Scanner 2000 calculates flow rates in accordance with the
measurement principles upon which the AGA-7 standard is based. The user supplies a linear or multi-point
calibration factor, and the instrument performs the required compensation calculations, based on the RTD
input.
Averaging Pitot Tube Meter (Annubar ® ). The Scanner 2000 calculates flow rates in accordance with the
ASME MFC-12M-2006 measurement standard. When measuring liquids, the expansion factor (Y) is always
equal to 1.0. Fluid property calculations for temperature-compensated liquids are based on API-2540 (1980),
Petroleum Measurement Tables.
Uncompensated Liquid
The Scanner 2000 measures uncompensated liquid flow based on the input from a liquid turbine meter or PD
meter.
Liquid Turbine Meter (Frequency Input) or PD Meter (Pulse Input). The Scanner 2000 calculates flow rate
from a liquid turbine meter via a frequency input, or from a contact closure (which requires the pulse input on
the optional expansion board). Flow rates and totals are calculated using a user-supplied linear or multi-point
calibration factor in accordance with API Manual of Petroleum Measurement Standards, Chapter 5, Section 3,
Measurement of Liquid Hydrocarbons by Turbine Meters (2005).
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