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BRONKHORST mini CORI-FLOW ML120 Instruction Manual

(ultra) low flow coriolis mass flow meters / controllers
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Instruction Manual
mini CORI-FLOW ML120
(Ultra) Low Flow
Coriolis Mass Flow Meters / Controllers
Doc. no.: 9.17.097G
Date: 09-01-2018
ATTENTION
Please read this Instruction Manual carefully before installing and operating the instrument.
Not following the guidelines could result in personal injury and/or damage to the equipment.

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  • Page 1 Instruction Manual mini CORI-FLOW ML120 (Ultra) Low Flow Coriolis Mass Flow Meters / Controllers Doc. no.: 9.17.097G Date: 09-01-2018 ATTENTION Please read this Instruction Manual carefully before installing and operating the instrument. Not following the guidelines could result in personal injury and/or damage to the equipment.
  • Page 2 Subject to technical and optical changes as well as printing errors. The information contained in this document is subject to change at any time without prior notification. Bronkhorst High-Tech B.V. reserves the right to modify or improve its products and modify the contents without being obliged to inform any particular persons or organizations. The device specifications and the contents of the package may deviate from what is stated in this document.
  • Page 3 Bronkhorst® Warranty Bronkhorst® products are warranted against defects in material and workmanship for a period of three years from the date of shipment, provided they are used in accordance with the ordering specifications and not subject to abuse or physical damage.
  • Page 4 Bronkhorst® Instruction Manual mini CORI-FLOW ML120 9.17.097G...

  • Page 5: Table Of Contents

    ......................25 9.17.097G Instruction Manual mini CORI-FLOW ML120...
  • Page 6 ......................63 Instruction Manual mini CORI-FLOW ML120...

  • Page 7: Introduction

    Responsibility for the use of the equipment with regard to suitability, intended use, cleaning and corrosion resistance of the used materials against the metered media lies solely with the end user. Bronkhorst High-Tech B.V. cannot be held liable for any damage resulting from improper use or use for other than the intended purpose.

  • Page 8: Calibration

    Calibration The mini CORI-FLOW is factory calibrated. Bronkhorst certifies that the instrument meets the rated accuracy. Calibration is performed using measurement standards traceable to the Dutch Metrology Institute (VSL). Calibration certificates are included in the scope of delivery.

  • Page 9: Model Key

    Customized I/O options mini CORI-FLOW ML120 instruments offer several customized input/output functions through pin 5 of the M12 connector as an option. The required I/O options are factory installed as specified at ordering time, and cannot be changed manually.
  • Page 10 Digital frequency output, measure Measurement value is translated to a frequency within given frequency range. The default frequency range to represent 0…100% flow is 0…10000 Hz. Any other frequency range must be specified on order. Instruction Manual mini CORI-FLOW ML120 9.17.097G...
  • Page 11 Digital input, reset counter The counter resets when pin 5 is connected to 0 Vdc. Example for I1R or I2R hook-up Digital input, reset alarm The alarm resets when pin 5 is connected to 0 Vdc. 9.17.097G Instruction Manual mini CORI-FLOW ML120...

  • Page 12: Starting Up

    Bronkhorst® Starting up Check properties Before installing your mini CORI-FLOW ML120, check the label on the rear side of the instrument to see if the functional properties match your requirements: · Flow rate · Fluid to be measured · Up- and downstream pressures ·...

  • Page 13: Mounting

    Bronkhorst recommends using their standard cables. These cables have the right connectors and if loose ends are used, these are marked to prevent wrong connection.

  • Page 14: Communication Interface

    Analog/RS232 An analog and (digital) RS232 interface are always available on mini CORI-FLOW ML120 series instruments. A fieldbus interface is optional. · The analog and RS232 interface are made available through a 9-pin D-sub connector on the side of the instrument...

  • Page 15: Digital Rs232 Interface

    For all fieldbus systems the mini CORI-FLOW ML120 instruments serve as slaves on the master/slave bus system. There is no mutual communication between slaves, only between master and slave.

  • Page 16: 2.7.3.1 Flow-Bus

    'local host' for communicating with a Windows computer to all instruments on the bus via an available RS232 connector. Note: communication with all the instruments on the FLOW-BUS system is possible when using an mini CORI-FLOW ML120 Series instrument as local-host RS232/FLOW-BUS interface. It is also possible to use multiple local-host RS232/FLOW-BUS interfaces in a FLOW-BUS system simultaneously.

  • Page 17: 2.7.3.3 Other Fieldbuses

    For an overview of all possible LED indications, see indications. The micro switch on top of the mini CORI-FLOW ML120 series can be operated with a thin, metal or hard plastic pin, e.g. the end of a paperclip. Avoid excessive force when operating the switch.

  • Page 18: Zeroing Using Micro Switch

    Warm-up (for a minimum of 30 minutes), pressurize the system and fill the instrument according to the process conditions. 2. Stop flow Make sure no flow is going through the instrument by closing valves near the instrument. The setpoint must be zero. Instruction Manual mini CORI-FLOW ML120 9.17.097G...

  • Page 19: Zeroing Through Digital Communication

    Make sure (in case of a controller) that the used control valve can withstand the system pressure and the maximum delta pressure allowed. 9.17.097G Instruction Manual mini CORI-FLOW ML120...

  • Page 20: Temperature Considerations

    · Tfluid + Tambient < 130°C With: · Tfluid < 130°C · T ambient < 80°C In all situations: · Tfluid > 0°C · Tambient > 0°C · Storage temperature (dry tube) [-30 .. 80]°C Instruction Manual mini CORI-FLOW ML120 9.17.097G...

  • Page 21: Operation

    Mass flow measurement and control After correct installation of the mini CORI-FLOW ML120 Mass Flow Meter (MFM) or Mass Flow Controller (MFC), and when all safety precautions have been taken into account, the instrument can be used for measuring/ controlling the required flow rate in the system by means of the selected communication interface(s).

  • Page 22: Valve Safe State

    Connecting the instrument with an RS232 cable or an RS232 cable with a USB to RS232 converter to a Windows computer enables using the free Bronkhorst® software for Windows, such as FlowDDE and FlowPlot. Digital operation via RS232 or fieldbus (RS485) adds extra features to the instrument, such as: ·...

  • Page 23: Flowdde

    3.3.1 FlowDDE RS232 communication can be used for operating the instrument using the Bronkhorst® FlowDDE server application. Dynamic Data Exchange (DDE) provides a basic level of inter process communication between Windows applications. FlowDDE is a DDE server application. Together with a client application, either self-made or with a third party SCADA program, it is possible to create an easy way of data exchange between the flow meter/controller and a Windows application.

  • Page 24: Software (Dde Applications)

    3.3.3 Baud rate, node address and parity mini CORI-FLOW ML120 series instruments support the following baud rates for RS232 communication. The factory selected baud rate is indicated on the instrument label. Refer to Digital parameters - Network configuration for changing the baud rate settings for the instrument.

  • Page 25: Basic Rs485 Operation (Flow-Bus/Modbus)

    3.4.3 Software When using a Windows computer to communicate with mini CORI-FLOW ML120 instruments only the FLOW-BUS protocol is supported by Bronkhorst® software. When using Modbus operation, software from third parties, such as LabVIEW, ModScan or a Modbus PLC must be used to serve as Modbus master.

  • Page 26: Baud Rate, Node Address And Parity

    Baud rate, node address and parity mini CORI-FLOW ML120 Series instruments are configured ex factory. If there is a need of changing any of the specified RS485 settings, see the tables below for the supported configurations. The default selections are printed in boldface.

  • Page 27: Other Fieldbus Configurations

    Changing EtherCAT® Second Address EtherCAT® supports the use of a Second Address. Bronkhorst® instruments have 3 rotary switches, with which a Second Address can be set in the range of 0 – 4095 (0xFFF). This value of the rotary switches will be copied to the Configured Station Alias register (address 0x0012:0x0013) at instrument start-up.
  • Page 28 Wink mode; by sending a command to the Wink parameter, the instrument flashes its 0.2 sec off LEDs to indicate its position in a (large) system. fast wink 0.1 sec on, Selected action started (after releasing the multifunctional switch) Instruction Manual mini CORI-FLOW ML120 9.17.097G...

  • Page 29: Multifunctional Switch

    9.17.095, for more information. Multifunctional switch The micro switch on top of the mini CORI-FLOW ML120 can be operated with a thin, metal or hard plastic pin, for example the end of a paperclip. Some special functions of the instrument can be started manually using the multifunctional switch near the indication LEDs.
  • Page 30 · In configuration mode, the green LED blinks 2 seconds on and 0.1 second off · Configuration mode remains active after powering-down and can be deactivated by selecting this function again at the next start-up Instruction Manual mini CORI-FLOW ML120 9.17.097G...

  • Page 31: Digital Parameters

    FLOW-BUS Instruments in a FLOW-BUS system can be configured and operated using the free Bronkhorst® FlowWare tools. These tools provide a graphical interface to the ProPar protocol (used by FLOW-BUS), for monitoring and changing instrument settings. Digital communication between the instrument and the client software (e.g. FlowPlot, FlowTune™) is handled by FlowDDE, a Dynamic Data Exchange server (DDE), the core component of the FlowWare software.

  • Page 32: General

    [Par] Parameter number Consult Instruction manual RS232 interface (document no. 9.17.027) for detailed information. This document can be downloaded from http://www.bronkhorst.com/en/downloads Modbus In the Modbus protocol, parameters are accessed by specifying their unique decimal register number or corresponding PDU address (Protocol Data Unit). The PDU address is the hexadecimal translation of the register number minus 1, e.g. register...

  • Page 33: Measurement And Control

    BHT Model Number Type Access Range FlowDDE FLOW-BUS Modbus Unsigned char[27] RW  113/2 0xF110…0xF117/ 61713…61720 This parameter shows the Bronkhorst® instrument model type information. Firmware Version Type Access Range FlowDDE FLOW-BUS Modbus Unsigned char[6] 113/5 0xF128…0xF12A/ 61737…61739 Revision number of the firmware...
  • Page 34 If Setpoint Slope = 100 it will take 10 seconds to adjust the setpoint if it is changed from 0 to 100%. A setpoint change of 20% will take (20%/100%)*10 seconds = 2 seconds. Analog Input Type Access Range FlowDDE FLOW-BUS Modbus Unsigned int 0…65535 0x0023/36 This parameter contains a digital translation of the analog input signal (if applicable). Instruction Manual mini CORI-FLOW ML120 9.17.097G...

  • Page 35: Alarms

    Gas volume Other (counter disabled) Alarms Alarm settings are most easily accessible via FlowPlot or FlowView or a Bronkhorst® readout and control unit. The built-in alarm functionality can be used to handle different alarm types: · system errors and warnings ·...
  • Page 36 FlowDDE FLOW-BUS Modbus Unsigned char 0…1 97/5 0x0C25/3110 Specifies whether or not to change the setpoint after an alarm situation is activated. Value Description No setpoint change (default) Change setpoint to Alarm new setpoint Instruction Manual mini CORI-FLOW ML120 9.17.097G...

  • Page 37: Counter

    Value Description Multifunctional switch External By parameter Reset Automatically (when alarm conditions no longer apply) Counter Counter settings are most easily accessible via FlowPlot or FlowView or a Bronkhorst® readout and control unit. Counter Mode Type Access Range FlowDDE FLOW-BUS...
  • Page 38 Default value: 7 (bits/methods 0, 1 and 2 enabled) The following methods are supported: Value Description Micro-switch External By parameter Reset Automatic (e.g. when counter value is reset) Instruction Manual mini CORI-FLOW ML120 9.17.097G...

  • Page 39: Network Configuration

    RW  0…1.0E10 124/9 0xFC48…0xFC49/64585…64586 Bus 2 Parity Type Access Range FlowDDE FLOW-BUS Modbus Unsigned char RW  0…2 124/12 0x0F8C/3981 The following values are supported: Value Description No parity Odd parity Even parity 9.17.097G Instruction Manual mini CORI-FLOW ML120...

  • Page 40: Special Parameters

    Reset Alarm info error bit Reset Alarm info warning bit The Reset parameter may be disabled by Reset Alarm Enable or Reset Counter Enable. Make sure the value is accepted by sending 0 first. Instruction Manual mini CORI-FLOW ML120 9.17.097G...

  • Page 41: Default Control Mode

    Mode, the instrument will always return to its default control mode at every power-up or reset. The default control mode can be set with parameter IO Status; to change it, use the procedures as described below. 9.17.097G Instruction Manual mini CORI-FLOW ML120...

  • Page 42: Fluid Set

    Consult Bronkhorst service personnel when in doubt.

  • Page 43: Advanced Fluid Set Parameters

    Conversion Condition Selection to value 3 and writing the actual pressure to Pressure. After power reset, the parameter value is reset to the value of Inlet pressure. 9.17.097G Instruction Manual mini CORI-FLOW ML120...
  • Page 44 0…3.4E+38 113/20 0xF1A0…0xF1A1/61857…61858 Thermal conductivity for the selected fluid set in W/m·K. Viscosity Type Access Range FlowDDE FLOW-BUS Modbus Float RW  0…3.4E+38 113/21 0xF1A8…0xF1A9/61865…61866 Dynamic viscosity for the selected fluid set in Pa·s. Instruction Manual mini CORI-FLOW ML120 9.17.097G...

  • Page 45: Fluid Mixture Parameters

    The typical behavior of a slave instrument is to automatically set its own setpoint relative to the output (measurement value) of its master. 9.17.097G Instruction Manual mini CORI-FLOW ML120...

  • Page 46: Controller

    The picture below shows a basic diagram of the PID controller algorithm (proportional, integral, derivative) used in a digital instrument. The controller speed controls the overall performance of the controller algorithm. Basically, to adjust the controller response, only the controller speed needs to be changed. Instruction Manual mini CORI-FLOW ML120 9.17.097G...
  • Page 47 For more information about controlling characteristics, consult the FlowPlot manual (document 9.17.030). This manual can be downloaded from http://www.bronkhorst.com/en/downloads. Because controlling characteristics are optimized during manufacture, Bronkhorst strongly advises not to change these parameters. If changing controller settings is absolutely necessary, it should be performed by or under supervision of trained service personnel only.
  • Page 48 Stable situation response, applied when the controller is stable (within a 2% band around the setpoint). · Default value: 128 (no correction) · Other values adjust the controller gain (correction signal) as follows: Controller gain = Controller Speed * PID-Kp * 1.05 (response factor - 128) Instruction Manual mini CORI-FLOW ML120 9.17.097G...

  • Page 49: Batch Dosing With Cori-Fill

    This automatic self-learning function optimizes the size of each new batch, based on the previously delivered one, until the overshoot is eliminated (typically after 3 batches, assuming the inlet pressure is stable). 9.17.097G Instruction Manual mini CORI-FLOW ML120...

  • Page 50: Estimated Dosing Time

    FlowPlot and the instrument, the Control Mode of the instrument has to be set to RS232 communication (see Special parameters). Extensive information about the installation and usage of FlowPlot can be found in the FlowPlot manual (document 9.17.030), which can be downloaded from http://www.bronkhorst.com/en/downloads. Instruction Manual mini CORI-FLOW ML120 9.17.097G...

  • Page 51: Dosing Method

    Because the mini CORI-FLOW ML120 measures mass flow, this is also the preferred dosing method. For volume based capacity units, the fluid density is needed to calculate the batch size (see the descriptions below), which is less accurate (and slower) than using the measured mass flow directly.

  • Page 52: Batch Settings

    · Start the first batch by changing the setpoint to 100% · Wait until the configured counter limit is reached (red indicator in the bottom of the Counter group) · Click Reset counter to start a new batch Instruction Manual mini CORI-FLOW ML120 9.17.097G...

  • Page 53: Overrun Correction

    Purpose/Remarks Parameter register no Counter Controller 104/10 59473… prevent batch size overshoot Overrun Correction (274) 59474 · higher value: faster correction, less dosing cycles needed · lower value: slower correction, more dosing cycles needed 9.17.097G Instruction Manual mini CORI-FLOW ML120...

  • Page 54: Disabling Filters

    The value of Capacity Minimum (247) can only be changed after enabling edit mode for secured parameters with parameter Init Reset (7). To set the minimum capacity, enter the required information as shown in the image below (the value of Capacity Minimum is illustrative, use the value you need). Instruction Manual mini CORI-FLOW ML120 9.17.097G...

  • Page 55: Proportional Control Settings

    62754 Capacity Minimum (247) 1/27 33241… as required typical value (for mini CORI-FLOW ML120): 5 g/h 33242 5.3.5 Proportional control settings Adjusting flow range A proportional control valve enables re-scaling of the controllable flow range, making it possible to dose with a lower flow.
  • Page 56 (temporarily) disabling the counter(Counter mode = Off; see Batch settings) · If necessary, the PID dials can be re-scaled by clicking on a scale value and entering a new value. Instruction Manual mini CORI-FLOW ML120 9.17.097G...

  • Page 57: On/Off Control Settings

    (hold signal). Once it is open, the signal can safely be set to a lower point, reducing power dissipation by the valve coil (thereby minimizing temperature rise). On/off control without hold signal On/off control with hold signal 9.17.097G Instruction Manual mini CORI-FLOW ML120...

  • Page 58: Optimizing Hints

    Increase minimum capacity (see Disabling limit is reached electrical noise filters) Zero point drifted Adjust zero point (see Zeroing) Gas inclusion in tubing Flush instrument and tubing at relatively high flow rate before starting batch control Instruction Manual mini CORI-FLOW ML120 9.17.097G...
  • Page 59 Restrict flow e.g. with needle valve or by using tubing with smaller diameter Full scale capacity too low Rescale controllable flow range (see Proportional control settings)* Controller settings not optimized Decrease PID-Kp value (see Proportional control settings)* *) Proportional control only 9.17.097G Instruction Manual mini CORI-FLOW ML120...

  • Page 60: Troubleshooting And Service

    Gas accumulation in tubing Flush the system to remove gas Tip: use frequency or density signal to detect presence of gas bubbles Wrong controller settings Adjust settings (e.g. with FlowPlot) Instruction Manual mini CORI-FLOW ML120 9.17.097G...
  • Page 61 Return equipment to factory failure Sensor failure Return equipment to factory Flow rate decreases gradually Condensation on measuring tube Increase media temperature to above ambient (might occur with NH and some conditions hydrocarbons, such as C 9.17.097G Instruction Manual mini CORI-FLOW ML120...

  • Page 62: Service

    Bronkhorst® Service For current information on Bronkhorst® and service addresses, please visit our website:  http://www.bronkhorst.com Do you have any questions about our products? Our Sales Department will gladly assist you selecting the right product for your application. Contact sales by e-mail: ›...

  • Page 63: Removal And Return Instructions

    A 'Declaration on decontamination' form (document no 9.17.032) can be downloaded from http://www.bronkhorst.com/en/downloads. Important: Clearly note, on top of the package, the customs clearance number of Bronkhorst High-Tech B.V., namely: NL801989978B01 (only if applicable, otherwise contact your distributor for local arrangements.) 9.17.097G...
  • Page 64 Bronkhorst® Instruction Manual mini CORI-FLOW ML120 9.17.097G...
  • Page 65 Init Reset Serial Number IO Status User Tag Reset Parameters - Fluid set (advanced) Wink Density Fluid Temperature Heat Capacity Inlet Pressure Outlet Pressure Pressure Temperature Thermal Conductivity Viscosity Parameters - Fluid set (basic) Capacity 9.17.097G Instruction Manual mini CORI-FLOW ML120...

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