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F-1500 Turbine Flow Meter Manual 02/18 - 1018-6 / 35726
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1.4 Flow Meter Configuration
The F-1500 Insertion Turbine Mass Flow Meter has a sensing head which contains the turbine
rotor, temperature sensor, and pressure tap. The pressure sensor, if provided, is located in the
pressure transducer housing between the stem and electronics housing.
The meter is installed through a full block valve and mounting adapter having a clear,
cylindrical port diameter of 1.875” diameter. It can be installed during system downtime or
using standard “Hot Tap” procedures.
The meter directly monitors the velocity at a point in the cross-sectional area of a pipe, duct, or
stack. The velocity at a point in the pipe varies as a function of the Reynolds number. When a
fluid flows through a pipe, the velocity generated is not constant across the diameter. The fluid
velocity varies across the diameter of the pipe creating a “Velocity Profile”. That is, velocities
near the center of the pipe are faster than those nearer to the wall. In addition, the velocity profile
varies in concert with flow rate from the lowest to the highest flows. Mathematical descriptions
of this profile have been developed for over 100 years. By knowing the velocity profile and the
flow rate at a single point, the average flow rate can be determined. The accuracy of the flow rate
computation depends on adherence to the piping installation requirements given in Chapter 2. If
adherence to those guidelines cannot be met, contact the factory for specific installation advice.
1.4.1 Multivariable Options
Different versions of the meter are capable of providing the following flow measurement options:
Volumetric flow; Mass flow with temperature compensation; Mass flow with temperature and
pressure compensation; Steam energy flow with temperature compensation; Steam energy
flow with temperature and pressure compensation, Mass or Energy flow with temperature and
external pressure compensation and Net Energy using a second temperature sensor.
1.4.2 Line Size / Process Connections / Materials
The F-1500 can be used in line sizes 2” and greater and is built with a packing gland design
using 2 inch NPT, or 2 inch flanged connections (ANSI 150, 300, 600, PN16, 40, or 64 class
flanges). The packing gland design is available with a permanent or removable retractor.
1.4.3 Flow Meter Electronics
The flow meter electronics are available mounted directly to the flow body, or mounted remotely.
The electronics housing may be used indoors or outdoors, including wet environments. Available
input power options are: DC loop powered (2-wire), DC powered, or AC powered. Three analog
output signals are available for your choice of three of the five process variables: mass flow rate,
volumetric flow rate, temperature, pressure or fluid density. A pulse output signal for remote
totalization and BACnet, MODBUS or HART communications is also available.
Each meter includes a local 2 x 16 character LCD display housed within the enclosure.
Local operation and reconfiguration is accomplished using six push-button operated via
finger touch. For hazardous locations, the six buttons can be operated with the electronics
enclosure sealed using a hand-held magnet, thereby maintaining the integrity of the
hazardous location certification.
The electronics include nonvolatile memory that stores all configuration information. The
nonvolatile memory allows the flow meter to function immediately upon power up or after
an interruption in power. All flow meters are calibrated and configured for the customer’s
flow application.