Flow calculation and measurement

• Dedicated mass flow calculation with DSP technology
• Fast dosing and flow step response with maximum 10 ms response time.
• 100 Hz update rate to all outputs
• Maximum data age from pickup to output is 20 ms (two update cycles)
• Independent low flow cut-off settings for mass and volume flowrates
• Automatic zero-point adjustment on command from discrete input or host system
• Empty pipe monitoring

Operation and display

• User-configurable operation display
  • Full graphical display 240 x 160 pixels with up to 6 programmable views
  • Self-explaining alarm handling/log in clear text
  • Help text for all parameters appears automatically in the configuration menu
  • Keypad can be used for controlling dosing as start/stop/hold/reset
• SensorFlash technology stores production specific system documentation and provides removable memory of all flowmeter setups and functions
  • Calibration certificates
  • Pressure and material test certificates (as ordered)
  • Non-volatile memory backup of operational data
  • Transfer of user configuration to other flowmeters
  • Alarm history log
  • Parameter change log
  • Logging of min and max process values
  • Data logging of process values and parameter

Alarms and safety

• Advanced diagnosis and service menu enhances troubleshooting and meter validation
• Configurable upper and lower alarm and warning limits for all process values
• Alarm handling can be selected between Siemens and NAMUR standard configurations
• Designed from the ground up and certified for integrated safety in accordance with IEC 61508 and IEC 61511.
  - SIL 2 (single-channel operation)
  - SIL 3 (dual-channel operation)
  Unlike many systems which are certified in practice, the SITRANS FC430 (DN 15 -DN 80) system is certified in design, which is a higher qualification and more robust for secure implementation of safety systems.

Outputs and control

• Built-in dosing controller with compensation and monitoring comprising 3 built-in totalizers
• Multi-parameter outputs, individually configurable for massflow, volumeflow, standard volumeflow, density, temperature or fraction flow such as °Brix or °Plato

Up to four I/O channels are configured as follows:

Channel 1

Channel 1 is 4 to 20 mA analog output with HART 7.5, PROFIBUS PA, PROFIBUS DP and Modbus RS485 RTU, which can be validated and setup for safety critical applications (SIL 2). The Current signal for SIL 2/3 can be configured for massflow, volumeflow or density, The Current signal for non SIL can be configured for massflow, volumeflow or density, standard volume flow, medium and frame temperature, Fraction A and B and Fraction A% and B%.

Channel 2

Channel 2 is a signal output which can be freely configured for any process variable.

• Analog current (0/4 to 20 mA)
• 3 stage analog valve dosing control
• Frequency or pulse
• Digital one or two-valve dosing control in combination with channel 3 or 4
• Operational and alarm status

Channels 3 and 4

Channels 3 and 4 can be ordered with signal (freely configured for any process variable) or relay outputs, or signal input.

Signal

Signal output can be user configured to:

• Analog current (0/4 to 20 mA)
• 3 stage analog valve dosing control
• Frequency or pulse
• Redundant frequency or pulse (linked to Channel 2)
• Digital one or two-valve dosing control
• Operational and alarm status

Relay

Relay output(s) can be user configured to:

• Digital one or two-valve dosing control
• Operation status including flow direction
• Alarm status

Signal input

Signal input can be user-configured for

• Dosing control
• Totalizer reset functions
• Force or freeze output(s)
• Inititate automatic zero point adjustment

Signal outputs and inputs for non hazardous areas can be changed for active or passive operations by dip switch.

For hazardous areas Signal outputs and inputs can't be changed by dip switch, and has to selected individually by ordering.

During service and maintenance all outputs can be forced to a preset value for simulation, verification or calibration purposes.

Approvals and certificates

The FC430 coriolis flowmeter program was designed from the ground up to comply with or exceed the requirements of international standards and regulations.