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Summary of Contents for Halma Alicat Scientific CODA Series
- Page 1 OPERATING MANUAL FOR CODA-SERIES CORIOLIS MASS FLOW INSTRUMENTS Models K · KC · KF · KG...
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Page 2: Contact Information
Thank you for purchasing your CODA series Coriolis mass flow instrument. Contact Information World Headquarters, Europe Tucson, Arizona, USA europe@alicat.com info@alicat.com Geograaf 24 alicat.com 6921 EW Duiven 7641 N Business Park Dr. The Netherlands Tucson, AZ 85743 USA +31 26 203-1651 +1 888-290-6060 China &... -
Page 3: Table Of Contents
Table of Contents Contact Information ........................2 Installation and Connections...................... 7 Connectors ..............................7 Mounting ............................... 7 Instrument Ports ............................7 Maximum Pressure ............................8 CODA Pump Manual Bypass ..........................8 Power and Signal Connections ........................9 DB-15 Connector ..............................9 M12 Connector .............................. - Page 4 Totalizer ............................... 17 Totalizer Data ..............................17 Batch Dispensing ............................. 18 Control Loop ..............................19 Control Variable .............................. 19 PID Control Algorithm ............................19 Valve Offset..............................19 Instrument Setup ........................20 Setup Screen ..............................20 Sensor Setup ..............................20 Engineering Units ............................20 Flow Averaging ..............................
- Page 5 Establishing Communication ..........................25 Unit ID ................................25 Multi-drop Information ............................ 25 Taring the Instrument ............................25 Measuring Total Flow ............................25 Analog Mass Flow Scale Factor .......................... 26 Volumetric Flow .............................. 26 Standardized Volumetric Flow .......................... 26 Changing the Setpoint ............................27 Changing the Setpoint Source ...........................
- Page 6 Analog I/O Electrical Characteristics ......................... 36 Analog I/O Data Ranges ............................ 37 Taring the Instrument ............................37 Changing the Setpoint ............................38 Troubleshooting ......................... 39 Maintenance ..........................40 Cleaning ............................... 40 Repair ................................40 Recalibration ............................... 40 Replacement Accessories ........................... 40 Technical Specifications and Dimensional Drawings ................
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Page 7: Installation And Connections
Installation and Connections This manual is for all CODA series Coriolis meters (K), controllers (KC), pump controllers (KF), and the full CODA pump system (KG). The drawings on this page represent a typical CODA series mass flow controller and meter. A pump controller is shown on the following page. -
Page 8: Maximum Pressure
On fittings that require thread-sealing Teflon tape, such • as NPT fittings, do not wrap the first two threads entering the instrument. This minimizes the possibility of getting tape into the flow stream and clogging the instrument. Face seal and compression fittings do not need Teflon •... -
Page 9: Power And Signal Connections
Power and Signal Connections On CODA meters, the USB-C connector on top of the instrument can provide power and a communication interface to the meter. CODA controllers and pump controllers require power via a DB-15, M12, or power jack connector (power jack is only available on RJ-45 units). -
Page 10: M12 Connector
M12 Connector METERS CONTROLLERS Label Label Analog Output, 0–5 Vdc output signal for mass flow rate. Optional: 0–10 Analog Output, 0–5 Vdc output signal for mass flow rate. Mass Flow Vdc or 4–20 mA Mass Flow Optional: 0–10 Vdc or 4–20 mA Power In +Vdc Power In... -
Page 11: Quick Start Guide
Quick Start Guide To begin using the instrument, mount the instrument and connect it to the process per the instructions above. In most cases you should be able to begin using the instrument once these steps are complete. Interacting with the instrument The multicolor LED indicator light will be solid green when power is supplied to the instrument. -
Page 12: Viewing Live Data
Press MENU to access the Main Menu Press SETUP to access the Setup screen Select Sensor , then press SELECT to view the Sensor Setup options Select Totalizer , then press SELECT to view the Totalizer Setup options. The buttons above and below the display allow you to access and select most functions. -
Page 13: Taring The Instrument
Button 4: volumetric flow; Not applicable for fluids with • density below 100 kg/m3 (most gases) Button 5: true mass flow • Press Button 3 to change the setpoint on controllers (page 14). Meters do not have a setpoint function. For meters, pressing Button 3 will tare the instrument (page 13). -
Page 14: Changing The Setpoint
Changing the Setpoint Controllers The Setpoints manage the amount of flow passing through the instrument. Pressing the setpoint button from the Live Screen ( Button 3 ) moves the screen to the setpoint selection screen. The Setpoint Selection screen indicates the engineering units Main screen with SETPT button and maximum allowable setpoint (e.g., kg/h: 1.000 Max ). -
Page 15: Maintenance And Care
Maintenance and Care CODA instruments require minimal maintenance. If necessary, the outside of the instrument may be cleaned with a soft dry cloth. Avoid excess moisture or solvents. CODA mass flow instrument used with gas require no periodic cleaning, provided they have been flowing clean, dry gas. CODA mass flow instruments used with liquids require some precautions to avoid contamination and/or corrosion damage. -
Page 16: Process Control
Process Control Setpoint Controllers → → MENU CONTROL Setpt For a controller to regulate the flow, it needs to have a setpoint established. The setpoint is the amount of flow that the controller attempts to achieve in a process. Control menu. -
Page 17: Setpoint Ramping
value, choose Power Up SP from the Setpoint Setup screen. The maximum boot setpoint will be shown after PCT (the value is shown a percentage of full scale for that variable). Select a new value by changing the large, central number. Setpoint Ramping MENU →... -
Page 18: Batch Dispensing
You can select whether the Totalizer screen will show the total amount of Mass or Volume (page 20). You can also choose to show Totalizer data on the Main Screen instead of Live Data (page 22). Batch Dispensing Flow Controllers ... -
Page 19: Control Loop
WARNING: Flow resumes immediately at the current setpoint when batch dispensing is turned off. Control Loop Flow Controllers MENU → CONTROL → Control Loop The control loop manages which parameter is controlled and how the controller reacts to system changes. If a particular response profile is required, or when multiple instruments need to provide the same response, tuning can be completed as described below. -
Page 20: Instrument Setup
Instrument Setup Setup Screen The setup screen shows a number of options for how the instrument is controlled and displays data. Setup menu. Sensor Setup MENU → SETUP → Sensor Sensor setup options control how measurements are calculated and communicated by the instrument. Sensor setup menu. -
Page 21: Zero Band
Choose Mass or Volumetric to display the flow in mass or volume units on the Totalizer screen, in place of the Live screen (page 12). Choose NONE to stop showing Totalizer data; the Main screen will display Live Data instead. Zero Band MENU →... -
Page 22: Display Setup
they match. Alternatively, you can change your computer’s baud rate (use Windows Device Manager for most ® applications). Baud rate changes take effect once you press SET , but you may need to restart any software for it to recognize the change. Display Setup →... -
Page 23: Advanced Setup
Advanced Setup Factory Restore → MENU SETUP → Advanced → Factory Restore If something is not acting as expected, please contact an applications engineer prior to doing a Factory Restore to help confirm a restore is necessary. Choosing Factory Restore will return the instrument to its factory configuration and Advanced Setup screen. -
Page 24: Digital Control
Digital Control CODA Series controllers and meters can be operated using digital or analog communication. Digital communication can be performed using Alicat FlowVision™ 2.0 software, ASCII serial commands, Modbus RTU, or analog signals. FlowVision 2.0: page • ASCII Serial Communication: page •... -
Page 25: Serial Ascii Communication
Serial ASCII Communication CODA instruments can use RS-232/485 serial communication for transmitting ASCII commands and data. This can be done using the Alicat serial terminal from alicat.com/drivers. Terminal is also available within FlowVision 2.0 (page 24). Establishing Communication Access the CODA ASCII serial interface through the USB port, DB-15 or M12 connectors on top of the instrument. Consult the pinouts on page for information on how to wire a connector for CODA. -
Page 26: Analog Mass Flow Scale Factor
Analog Mass Flow Scale Factor Analog mass flow outputs can be scaled up or down as needed. This means that the full-scale flow rates can correspond to a value above or below the maximum analog output of the instrument. The analog scaling factor affects the analog flow output in the following way: where ASF is the analog scale factor, MF is the mass flow, MAO is the maximum analog output, FSF is the full-scale flow, and AFO is the analog flow output. -
Page 27: Changing The Setpoint
If a gas is not found in the index, its density can also be set manually. Set the fluid density manually: unit_id new_parameter_value CFG DENS new_parameter_value is the new density value, in kg/m . See the parameter command table (page 28) for more information. -
Page 28: Command Reference
Command Reference Serial commands are not case-sensitive. unit_id@ new_unit_id Change the unit ID: unit_id Poll the live data frame: unit_id V Tare flow: unit_id new_setpoint_value New setpoint: unit_id T Reset totalizer: Query batch size: unit_id 1 Set totalizer batch: unit_id batch_volume... -
Page 29: Status Codes
By default, the parameter value starts at 33407. All statistics except for totalizer batch remaining and valve drive are enabled. If a statistic is enabled on an instrument that is not supported, (e.g., setpoint on a meter) the statistic is omitted from the data frame. To disable certain statistics in the data frame, subtract their value from the current parameter value (e.g., to disable total flow, subtract 64 from 33407 to obtain 33343). -
Page 30: Modbus Rtu Communication
Error Density over range. Density exceeds measurable range. Status Exhaust. The controller is holding the valve open to clear the process. Status Valve Hold. The controller is holding the valve position and not actively controlling the process. Modbus RTU Communication All CODA instruments come with a digital serial interface in addition to the analog interface. -
Page 31: Reading Process Data
Reading Process Data Alicat CODA series mass flow instruments make no distinction between “Input” and “Holding” registers. Modbus function codes FC03 and FC04 can be used interchangeably to read data from the instrument. Sensor and process values are stored as big-endian, 32-bit IEEE-754 floating point numbers spanning two registers. Your control system will need to chain these into a single value to interpret them correctly. -
Page 32: Standardized Volumetric Flow
The volumetric flow reading is useful if the flow liquid changes frequently, or if you do not know the exact density of the fluid. The downside of volumetric flow is that it is calculated from the mass flow and density readings, and thus errors are stacked from both of these readings. -
Page 33: Dispensing Flow In Batches
It is possible to save a setpoint the controller moves to whenever it is powered on. Analog does not have a power- up setpoint option. Set the power-up setpoint: use registers 1128–1129. Dispensing Flow in Batches Controllers A CODA controller can dispense fluid in a user-defined batch. Batching is a function of the totalizer on controllers. Once the batch size is defined, give the controller a setpoint to begin flowing the batch. -
Page 34: Status Flags
Dependent on the units of the control loop variable (special 2.21.18 / 4.01.01 1217–1218 Batch remaining (controllers) Float command 11 (page 0.0-1.0 (indicates the percentage of the drive's current 2.21.21 / 4.01.05 1219–1220 Valve drive (controllers) Float voltage). Dependent on register 1144, STP volumetric flow units and STP 2.26.0 / 4.06.0 1229–1230 STP Volumetric Flow... -
Page 35: Special Commands
Register Parameter Data Format Data Units Firmware Version N/A (see special command results status codes table 1000–1001 Command ID & argument UINT16 page Dependent on the loop control variable (special 1010–1011 Setpoint as % of full scale (controllers) Float command 11, page ) and full-scale flow. -
Page 36: Special Command Result Status Codes
1000. If you send a command to register 1000 without sending an argument to 1001 the CODA instrument interprets the command with a default argument of 0. Command Name Command ID Command Argument Notes 0: Abort tare Tare flow Tare takes about 10 seconds to complete. 1: Start tare Reset totalizer value 0: Reset totalizer... -
Page 37: Analog I/O Data Ranges
Input impedance 200 kΩ 200 kΩ 250 Ω Nominal source <1 kΩ < 1 kΩ Impedance Nominal source voltage — — 0–5 V+ ADC sampling rate 50 Hz 50 Hz 50 Hz ADC resolution 16 bit 16 bit 16 bit Outputs O–5 V 0–10 V... -
Page 38: Changing The Setpoint
WARNING: Pressing the top button may disturb the process line, resulting in an improper tare. ✓ Instruments with IP67 rating, and instruments with an M12 connector do not have a tare button. Note: Changing the Setpoint Controllers The setpoint is the flow rate that controllers attempt to achieve and maintain. A standard CODA controller does this by opening and closing the valve. -
Page 39: Troubleshooting
Troubleshooting If you run into trouble with installation or operation, contact support (page 2). Issue: I can't communicate with the instrument when it's connected to my PC. Action: 1. Ensure the baud rate of the software being used matches the baud rate of the instrument. 2. -
Page 40: Maintenance
Maintenance WARNING: Do not attempt to disconnect this instrument from any system which has been pressurized without independently confirming that all pressure has been safely released and that any hazardous gases which remain in that system have been purged. Cleaning This instrument requires minimal maintenance. -
Page 41: Appendices
Appendices Appendix A: Mass Flow Unit Values Changes to the mass flow units will affect the setpoint units. When using FlowVision (see page 24), the screen must be refreshed to reflect the new units. Mass Flow Unit Command Value Milligrams per second (mg/s) Milligrams per minute (mg/m) Grams per second (g/s) Grams per minute (g/m) -
Page 42: Appendix C: Totalizer Unit Values
Appendix C: Totalizer Unit Values Mass Flow Totalizer Unit Volumetric Totalizer Unit Command Value Grams (g) Liters (L) US ton (t) US gallon (US G) Milligrams (mg) cubic centimeters (cm3) Pounds (lb) cubic meters (m3) Kilograms (kg) US ounce (US oz) Cubic inches (in3) Cubic feet (ft3) Milliliters (mL)
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