SIEMENS Flow Measurement SITRANS F C (coriolis)

MASS flow meters STRANS F C (Coriolis)

The following flow meter systems are available:

  • SITRANS FC430
  • SITRANS FC410

The following transmitters are available:

  • MASS 6000 IP67/NEMA 4X compact/remote
  • MASS 6000 for 19“ insert/19“ wall mounting
  • MASS 6000 Ex d compact/remote
  • SIFLOW FC070

The following flow sensors are available:

  • MASS 2100 DI 1.5
  • SITRANS FC300
  • MASS 2100 DI 3, DI 6 and DI 15
  • SITRANS FCS200

System information SITRANS F C Coriolis mass flowmeters

SITRANS F C Coriolis mass flowmeters are designed for measurement of a variety of liquids and gases. The meter offers accurate measurement of mass flow, volume flow, density, temperature and fraction.

Compatibility between transmitters and sensors

Transmitter

Compact

Remote

Ex-Approval

Sensor

FCT030

Yes

Yes

Yes

FCS400 Standard, DN 15 … DN 150

Yes

Yes

Yes

FCS400 Hygienic, DN 15 … DN 80

Yes

Yes

Yes

FCS400 NAMUR, DN 15 … DN 150

No

Yes

Yes

MASS 2100, DI 1.5

Yes

Yes

Yes

MASS 2100, DI 3, DI 6, DI 15

No

Yes

Yes

FC300, DN 4

FCT010

Yes

No

Yes

FCS400 Standard, DN 15 … DN 80

Yes

No

Yes

FCS400 Hygienic, DN 15 … DN 80

Yes

No

Yes

FCS400 NAMUR, DN 15 … DN 80

No

Yes

Yes

MASS 2100, DI 1.5

Yes

Yes

Yes

MASS 2100, DI 3, DI 6, DI 15

No

Yes

Yes

FC300, DN 4

MASS 6000 IP67 Polyamide enclosure

No

Yes

No

FCS200, DN 10 … DN 25

No

Yes

No

FC300, DN 4

No

Yes

No

MASS 2100, DI 1.5

Yes

Yes

No

MASS 2100, DI 3 … DI 15

MASS 6000 19”

No

Yes

No

FCS200, DN 10… DN 25

No

Yes

No

FC300, DN 4

No

Yes

No

MASS 2100, DI 1.5

No

Yes

No

MASS 2100, DI 3 … DI 15

MASS 6000 Ex 19”

No

Yes

Yes

FC200, DN 10 … DN 25

No

Yes

Yes

FC300, DN 4

No

Yes

Yes

MASS 2100 Ex, DI 1.5

No

Yes

Yes

MASS 2100 Ex, DI 3 … DI 15

MASS 6000 Ex d
Stainless steel enclosure

No

Yes

Yes

FCS200, DN 10 …DN 25

No

Yes

Yes

FC300, DN 4

No

Yes

Yes

MASS 2100 Ex, DI 1.5

Yes

Yes

Yes

MASS 2100 Ex, DI 3 … DI 15

SIFLOW FC070 Standard

No

Yes

No

FCS200, DN 10 … DN 25

FC300, DN 4

MASS 2100, DI 1.5

MASS 2100, DI 3 … DI 15

SIFLOW FC070 Ex CT

No

Yes

Yes

FCS200, DN 10 … DN 25

FC300, DN 4

MASS 2100, DI 1.5

MASS 2100, DI 3 … DI 15

Benefits

Greater flexibility

  • Wide product program
  • High performance and top-end flowmeters
  • Compact or remote installation using the same transmitters and sensors within their flowmeter series

Easier commissioning

All SITRANS F C Coriolis flowmeters feature a sensor related memory unit SENSORPROM or SensorFlash which stores calibration data and transmitter settings for the lifetime of the product.

At commissioning the flowmeter commences measurement without any initial programming.

Easier service

  • Comprehensive self-diagnosis and service menu enhances troubleshooting and meter verification.
  • Transmitter replacement requires no programming. SENSORPROM automatically updates all settings after initialization.

Room for growth

  • FC430/FC410:
    Digital platform allows for any sensor in the range to be matched in compact or remote. The wide range of sensors are all certified to SIL2 or SIL3 (redundant) with the FCT030 transmitter in compact mode.
  • MASS 2100/FC300 sensors with FCT digital platform allows all sensors from DI 1,5 to DI 15 to be matched with the FCT010 and FCT030 transmitters.
    Both analog and digital connections are available.
  • MASS 6000:
    USM II the Universal  Signal Module with “plug & play“ simplicity makes it easy to access and integrate the flowmeter with almost any system and bus-protocol and it ensures the flowmeter will be easy to upgrade to future communication/bus platforms.
  • SIFLOW:
    Available for MASS 2100, FC200 and FC300.
    Direct integration into SIMATIC S7-300 systems as a flowmeter specific I/O module ensures fast and smooth startup, seamless integration, fast operation.

Application

Coriolis flowmeters are generally suitable for measuring liquids and gases. The flow measurement is independent of changes in process conditions/parameters such as temperature, density, pressure, viscosity, conductivity and flow profile.

Due to this versatility the meter is easy to install and use. The Coriolis flowmeter is recognized for its high accuracy over a wide turn-down ratio.

The main applications of the Coriolis flowmeter can be found in all industries, such as:

Chemical and pharma

Detergents, bulk chemicals, pharmaceuticals, acids, alkalis, filling and dosing

Food and beverage

Dairy products, beer, wine, softdrinks, °Plato/°Brix, fruit juices and pulps, bottling, CO2 dosing, CIP-liquids

Automotive

Fuel injection nozzle & pump testing, filling of AC units, engine consumption measurement, paint robots

Oil and gas

Filling of gas bottles, furnace control, CNG-dispensers, test separators, LPG, well-head water-cut monitoring

Water & waste water

Dosing of chemicals for water treatment

Function

The flow measuring principle is based on the Coriolis effect. The flowmeter consists of a system FC410 or FC430 or a combination of a sensor type MASS 2100/FC300/FCS200 and a transmitter type MASS 6000/SIFLOW FC070/FCT010 and FCT030.

The SITRANS F C sensors are energized by an electro-mechanical driver circuit which oscillates the pipe at its resonant frequency.

Two pick-ups, 1 and 2 are placed symmetrically on both sides of the driver. When liquid or gas flows through the sensor, Coriolis force will act on the measuring pipe and cause a pipe deflection which can be measured as a phase shift on pick-up 1 and 2. The phase shift is proportional to the mass flow rate.

The amplitude of the driver is automatically regulated to ensure a stable output from the 2 pick-ups.

The temperature of the sensor is measured by a Pt1000. For MC2 the temperature is measured with a Pt1000.

The flow-proportional signal from the 2 pick-ups, the temperature measurement and the driver frequency are fed into the SITRANS F C transmitter for calculations of mass, volume, fraction, temperature and density.

The signal transfer function is based on a DFT technology (Discrete Fourier Transformation).

The transmitter has a built-in noise filter, which can be used to improve the meter’s performance if the installation and application conditions are not ideal. Typically influence from process noise such as pump pulsations, mechanical vibrations, oscillating valves can be reduced considerably.

SENSORPROM and SensorFlash flow memory units

FC410 flow transmitters communicate via MODBUS RTU and FC430 via HART/Modbus/PROFIBUS DP/PROFIBUS PA.

Integration

Installation requirements/System design information

The SITRANS F C mass flowmeter is suitable for in- and outdoor installations. The standard instrument meets the requirements of Protection Class IP67/NEMA 6 or IP65. The flowmeter is bidirectional and can be installed in any orientation, however, the sensor is not self-emptying in all positions.
It is important to ensure that the meter tubes are always completely filled with homogeneous fluid. Otherwise measuring errors may occur.
The corrosion resistance of the fluid-wetted materials must be evaluated.
The pressure drop through the sensor is a function of the properties of the fluid and the flow rate. The Sizing Program (download from www.siemens.com/fc430/sizer) can be used to calculate the pressure drop.

The preferred flow direction is indicated by the arrow on the flowmeter. Flow in this direction will be indicated as positive.

Installation orientation

  • FCS400 – sensors
    The optimal installation orientation is vertical with flow upwards (liquids) and up to 10° off vertical for self-draining.
  • MASS 2100/FC300 – sensors
    The optimal installation orientation is horizontal.

Supports

  • In order to support the weight of the flowmeter and to ensure reliable measurements when external effects exist (e.g. vibrations), the sensor should be installed in well-supported pipelines. Supports or hangers should be installed symmetrically and stress-free in close proximity to the process connections. FCS400 sensors can be supported at the junction between the process connection and the main body of the sensor.

Shut-off devices

  • To conduct a system zero adjustment, shut-off devices are required in the pipeline:
    • In horizontal installations at the outlet for FC300 and the inlet for MASS 2100.
    • In vertical installations at the inlet.
  • When possible, shut-off devices should be installed both up- and downstream of the flowmeter. A bypass valve is recommended where regular zero adjustment is planned to avoid disruption of the flowing system.

Installation: straight run requirements

  • The mass flowmeter does not require any flow condition or straight inlet sections. Care should be exercised to ensure that any valves, gates, sight glasses etc. do not cavitate and are not set into vibration by the flowmeter.

System design information

  • The presence of gas bubbles in the fluid may result in erroneous measurements, particularly in the density measurement. Therefore the flowmeter should not be installed at the highest point in the system where bubbles are possibly largest.
  • Long drop lines downstream from the flowmeter should be avoided to prevent the meter tube from draining during operation.
  • The flowmeter should not come into contact with any other objects. Avoid attachments to the housing.
  • When the cross-section of the connecting pipeline is larger than the sensor size, suitable standard reducers may be installed.
  • If strong vibrations exist in the pipeline, they should be damped using elastic pipeline elements. The damping devices must be installed outside the supported flowmeter section and outside the section between the shut-off devices.
  • Make sure that any dissolved gases, which are present in many liquids, do not outgas. The back pressure at the outlet should be at least 0.2 bar (3 psi).
  • Assure that operation below the vapor pressure cannot occur when a vacuum exists in the meter tube or for fluids which boil readily.
  • The sensor should not be installed in the vicinity of strong electromagnetic fields, e.g. near motors, pumps, transformers etc.
  • When operating more than one meter in one or multiple interconnected pipelines, the sensors should be spaced distant from each other or the pipelines should be decoupled to prevent cross talk.

Zero adjustment

  • In order to adjust the zero under operating conditions it must be possible to reduce the flow rate to „ZERO“ while the meter tube is completely filled. It is important for accurate measurements that during the zero adjustment there are no gas bubbles in the flowmeter. It is also important that the pressure and temperature in the meter tube be the same as that which exists during operation.

Technical specifications

Flowmeter uncertainty/specifications

To ensure continuous accurate measurement, flowmeters must be calibrated. The calibration is conducted at Siemens flow facilities accredited according to ISO/IEC 17025 by DANAK.

The accreditation body DANAK has signed the ILAC MRA agreement (International Laboratory Accreditation Corporation – Mutual Recognition Arrangement). Therefore the accreditation ensures international traceability and recognition of the test results in 39 countries worldwide, including the US (NIST traceability).

A calibration certificate is shipped with every sensor and calibration data are stored in the SENSORPROM memory unit. FC410 and FC430 meters have the calibration data written to the front end section. A backup of all calibrations and PDF copies of all certificates are stored in the SensorFlash.

FCS400 sensors

5 %

50 % (Qnom)1)

100 % (Qmax)2)

kg/h

(lb/h)

kg/h

(lb/h)

kg/h

(lb/h)

DN 15 (½”)

320

(705)

3 700

(8 157)

6 400

(14 110)

DN 25 (1”)

855

(1 951)

11 500

(25 353)

17 700

(39 022)

DN 50 (2”)

3 535

(7 793)

52 000

(114 640)

70 700

(155 867)

DN 80 (3”)

9 050

(19 952)

136 000

(299 828)

181 000

(399 036)

DN 100 (4”)

26 000

(57 320)

285 800

(630 081)

520 000

(1 146 404)

DN 150 (6”)

43 100

(94 800)

459 200

(1 012 362)

860 000

(1 895 976)

MASS 2100 and FC300 sensors

5 %

50 % (Qnom)1)

100 % (Qmax)2)

kg/h

(lb/h)

kg/h

(lb/h)

kg/h

(lb/h)

DI 1.5 (1/16”)

1.5

(3.3)

15

(33)

30

(66)

DI 3 (1/8”)

12

(26)

125

(275)

250

(550)

DN 4 (1/6”)

17.5

(38)

175

(386)

350

(770)

DI 6 (¼”)

50

(110)

500

(1 102)

1 000

(2 200)

DI 15 (½”)

280

(617)

2 800

(6 173)

5 600

(12 345)

1) Qnom = Δ 1 barg @ water 20 °C

2) Qmax = 10 m/sec @ water 20 °C

  • Qmax (100 %) is calibrated with water at:
    • FCS400 sensors: a pressure drop of 1 bar (14.5 psi)
    • MASS 2100 sensors (all except Di 1.5): a flow speed of 10 m/s (Di 1.5: a flow speed of 4.7 m/s)
  • For flow > 5 % of the sensors max. flow rate, the error can be read directly from the curve below.
  • For flow < 5 % of the sensors max. flow rate, use the formula to calculate the error.
  • The error curve is plotted from the formula:

E = Error [%]
Z = Zero point error [kg/h]1)
qm = Mass flow [kg/h]
Cal. = Calibrated flow accuracy: 0.10 or 0.15

1) Zero point error for each sensor is shown in the tables below.

Reference conditions for flow calibration (ISO 9104 and DIN/EN 29104)

Flow conditions

Fully developed flow profile

Temperature, medium

20 °C ± 2 °C (68 °F ± 3.6 °F)

Temperature, ambient

20 °C ± 2 °C (68 °F ± 3.6 °F)

Liquid pressure

2 ± 1 bar

Density

0.997 g/cm3

Brix

40 °Brix

Supply voltage

Un ± 1 %

Warming-up time

30 min.

Cable length

5 m between transmitter and sensor

Additions in the event of deviations from reference conditions

Current output

As pulse output ± (0.1 % of actual flow +0.05 % FSO)

Effect of ambient temperature

  • Display/frequency/pulse output:
    < ± 0.003 % / K act.
  • Current output:
    < ± 0.005 % / K act.

Effect of supply voltage

< 0.005 % of measuring value on 1 % alteration