Engineering Specifications
Sitrans FC Coriolis Massflo meter
GENERAL
Scope
This section describes the requirements for a coriolis Massflo flow meter measuring system. Under this item, the
contractor shall furnish and install the coriolis Massflo flow meter measuring system, and all associated
equipment and accessories as indicated on the plans and as herein specified.
Submissions
The following information shall be included in the submittal for this section:
 Data sheets and catalog literature for system components.
 Interconnection and dimensional drawings.
Basic System Description
The coriolis Massflo flow meter measuring system where all sizes will be capable of measuring both liquid and
gas mass flow rates. Sizes shall range from a minimum of1.5 mm (1/16”) to 150 mm (6”). All sizes from 1.5mm
(1/16”) to 40 mm (1 ½”) shall be of a full bore, single tube design but configured in such a manor to provide dual
tube accuracy. All units shall have an internal mounting configuration that provides isolation between the
process connections and the measurement section of the sensor. The signal processing electronics shall be
based on a ultra low noise ASIC using DFT (Discrete Fourier Transformation). They shall make use of field
replaceable communication modules that allow for changing communication protocols without any change or
modification in the basic signal processing electronics. The electronics will be accessible through a sealed touch
key pad without opening the cover, and still maintaining their original classifications.
Coriolis Mass Flow operation description:
A driver circuit creates a natural frequency driving the flow tubes. This natural frequency will vary depending
upon the density of the media in the flow tubes. The flow tubes will have a minimum of detectors (one up stream
and one down stream) that will detect both the mass flow (based on phase shift) and the density (based on
frequency. These signals will then be processed through the use of ASIC providing a variety of both Mass flow,
volumetric flow and density outputs.
PRODUCT SPECIFICATION
Service
Service:
Fluid:
Operating Pressure:
Process Temperature:
Installation Drawing:
Application:
As noted
Liquid or gases
As noted
minus 50 to 180 °C ( minus 55 to 355 °F)
As noted
Mass Flow measurement of both liquid and gas flow applications
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Performance
Range:
Accuracy (flow):
Accuracy:
Full scale flow ranges from 65 – 510,000 kg/hr (140 – 1,124,000 lbs / hr)
± 0.10% of rate for sizes up to 40mm
± 0.15% of rate for sizes from 50mm - 150mm
Better than 0.005 g/cc
Sensor
Measuring Principle:
Type:
Mounting:
Pressure Rating:
Coriolis Mass Flow
Full bore single tube for sizes up to 40mm
Dual tube for sizes from 50 – 150 mm
As noted
As noted
Additional Equipment
The following additional equipment shall be available at additional cost.
 HART hand held unit or software package SIMATC process device manager (PDM) for
instrument access and configuration using PC.
 Mounting Bracket
Manufacturer: Siemens
Installation:
All equipment shall be installed, configured, interconnected, and commissioned by qualified persons, in
accordance with the manufacturer’s instructions and guidelines, and in compliance with all governing regulations
and accepted engineering practices.
Warranty:
The manufacturer shall warrant the equipment described herein, to be free of defects in materials and
workmanship, for a period of thirty (30) months from the date of shipment from the supplier, or twenty four (24)
months from the date of initial equipment start up, whichever is earlier. The manufacturers liability shall be
limited to the repair or replacement of the materials supplied, free of charge F.O.B. the manufacturer’s facility.
Alternatively, at its option, the manufacturer may elect to refund the purchase price. Other limitations may
apply. Refer to the “Terms and Conditions of Quotation or Sale”, provided by the equipment manufacturer for
complete warranty details.
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