BRONKHORST Mini CORI-FLOW MI Series User manual

Doc. no.: 9.17.120 rev. A Date: 24-10-2019
ATTENTION
Pleaseread this documentcarefully beforeinstalling and operating the product.
Not following the guidelines could resultin personalinjury and/or damageto the equipment.
MI Series
Industrial mini CORI-FLOW™
Instruction Manual

Bronkhorst®
Instruction Manual MI Series Industrial mini CORI-FLOW™ 9.17.120A2
Copyright
© 2019 Bronkhorst High-Tech B.V.
All rights reserved. No part of this publication may be reproduced, distributed, or transmitted in any form or by any means,
without the prior written permission of the publisher.
Disclaimer
This document has been reviewed and is believed to be accurate. Bronkhorst High-Tech B.V. does not assume liability for
errors, inaccuracies or absence of information. The material in this document merely serves information and illustration
purposes; no rights can be derived from its contents.
Bronkhorst High-Tech B.V. reserves the right to modify or improve its products and documentation without informing
anyone. The information contained in this document is subject to change without notice. Device specifications and the
contents of the package may deviate from what is stated in this document.
Symbols in this document
Important information. Disregarding this information could increase the risk of damage to the equipment, or the risk of
personal injuries.
Helpful information. This information will facilitate the use of the instrument and/or contribute to its optimal
performance.
Additional information available on the internet or from your Bronkhorst representative.
Receipt of equipment
Check the outside packaging box for damage incurred during shipment. If the box is damaged, then the local carrier must
be notified at once regarding his liability, if so required. At the same time a report should be submitted to your Bronkhorst
representative.
Carefully remove the equipment from the box. Verify that the contents of the package was not damaged during shipment.
Should the equipment be damaged, then the local carrier must be notified at once regarding his liability, if so required. At
the same time a report should be submitted to your Bronkhorst representative.
·Check the packing list to ensure that you received all of the items included in the scope of delivery
·Do not discard spare or replacement parts with the packaging material
Refer to Removal and return instructions about return shipment procedures.
Equipment storage
The equipment should be stored in its original package in a cupboard warehouse or similar. Care should be taken not to
subject the equipment to excessive temperatures or humidity.

Bronkhorst®
Instruction Manual MI Series Industrial mini CORI-FLOW™9.17.120A 3
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. Products that do not operate properly during this period may be repaired or replaced at no charge. Repairs are
normally warranted for one year or the balance of the original warranty, whichever is the longer.
See also section 9 (Guarantee) of the Conditions of sales:
www.bronkhorst.com/about/conditions-of-sales/
The warranty includes all initial and latent defects, random failures, and indeterminable internal causes. It excludes failures
and damage caused by the customer, such as contamination, improper electrical hook-up, physical shock etc.
Re-conditioning of products primarily returned for warranty service that is partly or wholly judged non-warranty may be
charged for.
Bronkhorst High-Tech B.V. or affiliated company prepays outgoing freight charges when any part of the service is
performed under warranty, unless otherwise agreed upon beforehand. The costs of unstamped returns are added to the
repair invoice. Import and/or export charges as well as costs of foreign shipping methods and/or carriers are paid by the
customer.
General safety precautions
This product is intended for use by qualified personnel who recognize shock hazards and are familiar with the safety
precautions required to avoid possible injury. Read the operating information carefully before using the product.
Before operating, make sure the line cord is connected to a properly grounded power receptacle. Inspect the connecting
cables for cracks or breaks before each use.
The equipment and accessories must be used in accordance with their specifications and operating instructions, otherwise
the safety of the equipment may be impaired.
If required, replace fuses with the same type and rating for continued protection against fire hazard.
Opening the equipment beyond the wiring terminal box cover is not allowed. There are no user serviceable parts inside. In
case of a defect please return the equipment to Bronkhorst High-Tech B.V.
One or more warning signs may be present on different parts of the product. These signs have the following meaning:
Consult the instruction manual for handling instructions
Surface may get hot during operation
Shock hazard; electrical parts inside
To maintain protection from electric shock and fire, replacement components must be obtained from Bronkhorst. Standard
fuses, with applicable national safety approvals, may be used if the rating and type are the same. Other components that are
not safety related may be obtained from other suppliers, as long as they are equivalent to the original component. Selected
parts should be obtained only through Bronkhorst, to maintain accuracy and functionality of the product. If you are unsure
about the relevance of a replacement component, contact your Bronkhorst representative for information.

Bronkhorst®
Instruction Manual MI Series Industrial mini CORI-FLOW™ 9.17.120A4

Bronkhorst®
Instruction Manual MI Series Industrial mini CORI-FLOW™9.17.120A 5
Table of contents
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
Introduction 1
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 71.1 Scope of this manual
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 71.2 Intended use
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 71.3 Product description
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 81.4 Product overview
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 81.5 Calibration
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 91.6 Maintenance
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 91.7 Documentation
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10
Installation 2
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 102.1 Functional properties
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 102.2 Operating conditions
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 102.3 Mounting
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10Orientation 2.3.1
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11Location 2.3.2
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11Preventing resonance 2.3.3
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11Fluid connections 2.3.4
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11Piping requirements 2.3.5
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 122.4 Electrical connection
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12Custom cable gland connection 2.4.1
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13Analog/RS232 2.4.1.1
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13FLOW-BUS/Modbus 2.4.1.2
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13PROFIBUS DP 2.4.1.3
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14EtherCAT/PROFINET 2.4.1.4
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 142.5 Optional fieldbus interface
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16
Operation 3
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 163.1 Powering up and powering down
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 163.2 First use
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 163.3 Valve Safe State
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 163.4 Mass flow measurement and control
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 163.5 Temperature considerations
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 173.6 Communication
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17Analog operation 3.6.1
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18Digital RS232 operation 3.6.2
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18FlowDDE 3.6.2.1
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19Software (DDE applications) 3.6.2.2
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19Fieldbus operation 3.6.3
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 213.7 Hardware interface
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21LED indications 3.7.1
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22Interface status 3.7.1.1
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23Multifunctional switch 3.7.2
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23Normal operating functions 3.7.2.1
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24Power-up functions 3.7.2.2
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24Control mode - readout/change 3.7.2.3
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 25Network settings - readout/change 3.7.2.4
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 26Rotary switches 3.7.3
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 26Bus termination switches 3.7.4

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Instruction Manual MI Series Industrial mini CORI-FLOW™ 9.17.120A6
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. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 273.8 Adjusting zero point
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 28Digital procedure 3.8.1
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 28Manual procedure 3.8.2
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Digital parameters 4
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 304.1 Measurement and control
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 30Advanced measurement and control 4.1.1
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 324.2 Alarms
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 334.3 Counter
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 354.4 Network configuration
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 364.5 Fluid set
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 37Advanced fluid set parameters 4.5.1
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 384.6 Controller
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 394.7 Master/slave configuration (FLOW-BUS)
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 404.8 Device identification
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 414.9 Special parameters
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 42Default control mode 4.9.1
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 44
Technical info rmatio n 5
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 445.1 Model key
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 445.2 Customized I/O options
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 47
Troubleshooting and service 6
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 476.1 Errors and warnings
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 476.2 Replacing fuses
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 476.3 Restoring factory settings
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 47Manual procedure 6.3.1
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 486.4 Common issues
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 506.5 Service
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 51
Removal and return instructions 7
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 53
Parameter index

Bronkhorst®
Instruction Manual MI Series Industrial mini CORI-FLOW™9.17.120A 7
1Introduction
1.1 Scope of this manual
This manual contains general product information, installation and operating instructions and troubleshooting tips for the
MI Series Industrial mini CORI-FLOW™ mass flow meters and controllers for liquids and gases.
1.2 Intended use
The mini CORI-FLOW™ is designed to measure and/or control mass flow rates of gases and liquids in a fluid system at
conditions as specified at ordering time and as stated on the serial number label.
The instrument is built into a robust, weatherproof housing, making it especially suitable for operation in a wide range of
industrial (including hazardous) environments.
The wetted materials incorporated in the mini CORI-FLOW™ are compatible with media and conditions (e.g. pressure,
temperature) as specified at ordering time. If you are planning to use the product (including any third party components
supplied by Bronkhorst, such as pumps or valves) with other media and/or other conditions, always check the wetted
materials (including seals) for compatibility. See the technical specifications of the product and consult third party
documentation (if applicable) to check the incorporated materials.
Responsibility for the use of the equipment with regard to suitability, intended use, cleaning and corrosion resistance of the
applied materials against the processed media lies solely with the end user.
Where appropriate, this document recommends or prescribes safety measures to be taken with respect to media usage or
working with the described equipment under the specified conditions. The end user is responsible for taking the necessary
safety precautions and proper use of appropriate (personal) protective equipment, even if such is not explicitly
recommended or required in this document.
The end user is considered to be familiar with the necessary safety precautions, and to comply with the appropriate
protective measures as described in the Material Safety Data Sheets of the media to be used in the system (if applicable).
Bronkhorst High-Tech B.V. cannot be held liable for any damage resulting from improper or unsafe use, use for other than
the intended purpose or use with other media and/or under other conditions than specified on the purchase order.
1.3 Product description
The Bronkhorst® MI Series Industrial mini CORI-FLOW™ is an accurate mass flow meter and controller for measuring gas and
liquid flows, virtually independent of pressure and temperature changes. It can be operated analog, via RS232 or HART, or
via an optional fieldbus interface (FLOW-BUS, Modbus (RTU/ASCII), PROFIBUS DP, EtherCAT® and PROFINET). For RS232 and
FLOW-BUS communication, Bronkhorst offers free tooling software (e.g. FlowPlot).

Bronkhorst®
Instruction Manual MI Series Industrial mini CORI-FLOW™ 9.17.120A8
Measuring principle
mini CORI-FLOW™ instruments contain a uniquely shaped, single loop sensor tube, forming part of an oscillating system.
When a fluid flows through the tube, Coriolis forces cause a variable phase shift, which is detected by sensors and fed into
the integrally mounted printed circuit board. The resulting output signal is strictly proportional to the real mass flow rate,
independent of fluid density, temperature, viscosity, pressure, heat capacity or conductivity. Coriolis mass flow
measurement is fast, accurate and inherently bi-directional. The mini CORI-FLOW™ features density and temperature of the
fluid as secondary outputs.
Multi-range
The MI Series Industrial mini CORI-FLOW™ offers multi-range functionality: factory calibrated ranges can be re-ranged to a
different full scale range. The analog output and the digital measured value are scaled accordingly. Switching between
ranges can be done via the RS232 interface or the fieldbus interface (if applicable), or with a Bronkhorst® readout and
control unit (E-8000, BRIGHT).
The instrument comes with a calibration certificate for all supported full scale ranges. The actual full scale of the instrument
is set to a value as ordered and can be found on the serial number label.
Custom I/O options
The Main connection and the Actuator connection (see Product overview) each can provide additional input/output
functionality, selectable from a wide range of options (see Customized I/O options). In addition to the various analog signal
options and the standard RS232 communication, there are such options as RS485 communication, digital frequency/pulse
output, alarm output/reset, valve purge/close and analog valve output.
1.4 Product overview
Left side
1. Fluid inlet
2. Indication LEDs
3. Fieldbus connection 1 (optional)
4. Fieldbus connection 2 (optional)
5. Cover
Right side
6. Additional actuator/remote display connection (optional)
7. Main connection
8. Bronkhorst® valve connection (optional)
9. Fluid outlet
Depending on the ordering details, fittings and/or connectors on your instrument might differ from the images above.
1.5 Calibration
The mini CORI-FLOW™ is factory calibrated. Periodical inspection, recalibration or verification of the accuracy may be subject
to individual requirements of the end user.
Bronkhorst certifies that the instrument meets the rated accuracy. Calibration has been performed using measurement
standards traceable to the Dutch Metrology Institute (VSL).

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Instruction Manual MI Series Industrial mini CORI-FLOW™9.17.120A 9
1.6 Maintenance
The mini CORI-FLOW™ needs no regular maintenance if operated properly, with clean media, compatible with the wetted
materials, avoiding pressure and thermal shocks and vibrations. Units may be purged with a clean, dry and inert gas or a
non-aggressive and non-corrosive solvent.
In case of severe contamination, cleaning of the inside of the instrument and of the valve orifice (if applicable) may be
required.
Inexpertly servicing instruments can lead to serious personal injury and/or damage to the instrument or the system it is
used in. Servicing must therefore be performed by trained and qualified personnel. Contact your Bronkhorst representative
for information about cleaning and calibration. Bronkhorst has a trained staff available.
1.7 Documentation
The mini CORI-FLOW™ comes with all necessary documentation for basic operation and maintenance. Some parts of this
manual refer to other documents, most of which can be downloaded from the Bronkhorst website. Calibration certificates,
test certificates and material certificates are part of the scope of delivery or can be provided on request.
The documentation listed in the following table is available on the mini CORI-FLOW™ product pages under
www.bronkhorst.com/products :
Type
Document name
Document no.
Manuals
Instruction Manual MI Series Industrial mini CORI-FLOW™ (this
document)
9.17.120
Technical documentation
Hook-up diagram Analog/RS232 & HART
9.16.199
Hook-up diagram EtherCAT®
9.16.200
Hook-up diagram FLOW-BUS
9.16.201
Hook-up diagram Modbus
9.16.202
Hook-up diagram PROFIBUS DP
9.16.203
Hook-up diagram PROFINET
9.16.204
Hook-up diagram custom bus & I/O configurations
9.16.205
Dimensional drawing
7.14.001
The documentation listed in the following table can be downloaded from www.bronkhorst.com/downloads :
Type
Document
Document no.
General documentation
EU Declaration of Conformity
9.06.059
Instruction manuals
Manual EtherCAT® interface
9.17.063
Manual FLOW-BUS interface
9.17.024
Manual HART interface
9.17.121
Manual Modbus interface
9.17.035
Manual PROFIBUS DP interface
9.17.025
Manual PROFINET interface
9.17.095
Manual RS232 interface
9.17.027

Bronkhorst®
Instruction Manual MI Series Industrial mini CORI-FLOW™ 9.17.120A10
2Installation
2.1 Functional properties
Before installing the mini CORI-FLOW™, check the serial number label to see if the main functional
properties match your requirements:
·Flow/pressure rate(s)
·Media to be used in the instrument
·Upstream and downstream pressure(s)
·Operating temperature
·Technical properties (see Model key)
Do not hesitate to contact your Bronkhorst representative if properties and ordering details do not
match.
2.2 Operating conditions
Test pressure
Bronkhorst® instruments are pressure tested to at least 1.5 times the specified working process
conditions and outboard leak tested to at least 2 * 10-9 mbar l/s Helium. The tested pressure is specified
on the instrument with a red label.
·Before installation, make sure that the tested pressure is in accordance with the safety factor of your application.
·If the pressure test label is missing or if the specified pressure is insufficient, the instrument must not be used and should
be returned to the factory.
·The maximum operating pressure must never exceed the tested pressure.
·Disassembling the instrument and/or replacing parts of it will invalidate the pressure test specification.
Preventing slug flow
Adequate mass flow measurement is only possible if the fluid flows through the instrument in a single state (either gas or
liquid). To prevent so called 'slug flow' (two-phase flow), avoid the following circumstances:
·external heating or cooling (can cause gas bubbles in liquid or condensation of gas)
·extreme pressure fluctuations (can cause cavitation in liquid or condensation of gas)
Operation in high humidity conditions
In a relatively moist environment, water condensate may precipitate on the measuring tube if the media temperature is
(much) lower than the ambient temperature. Condensed water increases the tube's mass, causing a density measurement
error. To prevent this, continuous purging of the housing interior with a dry, inert gas (i.e. Nitrogen) is recommended.
Contact your Bronkhorst representative for setting up an optimal purging configuration.
2.3 Mounting
For optimal performance, installation in a vibration free position is
essential. The bottom of the instrument body is fitted with two sets of 4
mounting holes; use these mounting holes to fixate the instrument to a
firm, rigid base or heavy, vibration free mass, such as a wall, a heavy rig or
another stable construction. If such a facility is not available, Bronkhorst
can supply special suspension pads for stable, vibration free fixation.
These suspension pads are for upright mounting of the mini CORI-FLOW™
only and can be installed in the outer mounting holes. Contact your local
Bronkhorst representative for more information.
·Always use the mounting holes to fixate the instrument. Consult the dimensional drawing for the exact locations and
size of the mounting holes.
·Also make sure that the instrument is not suspended by the piping and take adequate measures to isolate the instrument
from vibrations in the piping.
2.3.1 Orientation
Generally, the reliability of a mini CORI-FLOW™ instrument is not affected by the mounting orientation.

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Instruction Manual MI Series Industrial mini CORI-FLOW™9.17.120A 11
2.3.2 Location
For gas applications, mount the instrument in a location where condensate (if any) cannot accumulate inside the
instrument's media conduits.
In liquid applications, the presence of gas bubbles in the liquid can cause
measuring errors. In general, the instrument should be mounted in a pipe
segment where gas bubbles (if any) cannot accumulate. The image to the
right shows the preferable mounting locations.
·The best location is a horizontal pipe segment or a segment where the fluid direction is upward.
·Gas might accumulate in a horizontal segment if it is followed by a downward segment. Do NOT mount the
instrument in a location like this.
·Mounting in a downward pipe segment with an open end is strongly dissuaded, especially if the pipe
diameter is 1/2" or more. Gravity might let the segment run empty; depending on the specific system
dimensions and the viscosity of the metered fluid, this effect might be stronger or weaker.
·If the instrument is part of a closed fluid system, mounting the instrument in a downward pipe segment is
not preferable, but may be considered if other mounting locations are more problematic.
To minimize the risk of gas entrapment by cavitation, the preferred location to install a control valve is downstream from
the instrument, for a pump the preferred location is upstream.
2.3.3 Preventing resonance
·If multiple mini CORI-FLOW™ instruments will be used in the same fluid system or close to each other, vibrations from
one instrument might interfere with the resonance frequency of another, e.g. through piping or a mounting frame.
·Isolate instruments mechanically by mounting them on individual, rigid, stiff bases. Preferably, mount multiple
instruments parallel to each other, and use flexible piping.
2.3.4 Fluid connections
Flow direction
·Install the mini CORI-FLOW™ in the process line, in accordance with the direction of the FLOW arrow on the
base of the instrument.
·Tighten connections according to the instructions of the supplier of the fittings.
Fittings
Bronkhorst® mini CORI-FLOW™ meters/controllers can be fitted with different fitting types (e.g. compression or face-seal). For
leak tight installation, follow the guidelines of the supplier of the fittings. Special fitting types are available on request.
Check the fluid system for leaks before applying full operating pressure, especially when using hazardous media (e.g. toxic
or flammable).
After using the mini CORI-FLOW™ for the first time with low temperature media, tighten the fluid connections again in
order to prevent leakage.
2.3.5 Piping requirements
During the manufacturing process, the instrument has been tested with water. Despite the fact that it has been purged
thoroughly afterward, the instrument cannot be guaranteed to be absolutely free of water droplets upon delivery. For
applications where remaining water particles might cause undesired reactions, such as corrosion, Bronkhorst strongly
recommends performing an additional, adequate drying procedure.
For reliable performance, make sure the fluid stream is uncontaminated. If necessary, use filters to ensure a moisture, oil
and particle free gas stream. If back flow can occur, the use of a downstream filter and check valve is also recommended.
Select a suitable filter size, to prevent a too high pressure drop.

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Instruction Manual MI Series Industrial mini CORI-FLOW™ 9.17.120A12
2.4 Electrical connection
Electrical connections must be made with standard cables or according to the applicable hook-up diagrams. Make sure that
the power supply is suitable for the power ratings as indicated on the serial number label (see model key), and that double
or reinforced insulation is used for the power supply. For use in fieldbus systems, follow the instructions of the cable
supplier for the specific fieldbus system.
The device described in this document contains electronic components that are susceptible to electrostatic discharge. In
order to prevent damage, proper handling procedures must be followed during installation, (dis)connecting and removing
the electronics.
The device carries the CE-mark and is compliant with the concerning EMC requirements. However, compliance with
the EMC requirements is not possible without the use of proper cables and connector/gland assemblies. Bronkhorst
recommends the use of their standard cables. These cables have the right connectors and loose ends (if any) are marked to
help prevent wrong connection. When using other cables, cable wire diameters must be sufficient to carry the supply
current, and voltage loss must be kept as low as possible. When in doubt, contact your Bronkhorst representative.
When connecting the product to other devices, be sure that the integrity of the shielding is not affected; always use
shielded cabling for signals and communication and do not use unshielded wire terminals.
Never power the instrument simultaneously from two different power sources (e.g. fieldbus connection and Plug-in
Power Supply). Doing so will blow the power line fuses on the wiring terminal box.
Always isolate the electrical power before connecting or disconnecting equipment.
2.4.1 Custom cable gland connection
The instrument cover may only be opened in a dry and non hazardous environment. Before opening the cover, make sure
that the operating environment is perfectly safe and that the electrical components cannot be affected by moisture or
aggressive atmospheric components.
To connect an instrument with custom gland connectors, the cover has to
be removed in order to access the wiring terminal box. Unscrew the 4
hexagon screws on top of the instrument to remove the cover.
A detailed hook-up legend is printed on two labels on the inside of the
cover. Refer to the applicable hook-up diagram for information about
connecting the right signals.
All connections are fitted with 2.5 mm2 screw terminals, except where specified otherwise.

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Instruction Manual MI Series Industrial mini CORI-FLOW™9.17.120A 13
To ensure proper shielding, connect the cable shielding with the glands before re-installing them to the instrument
housing.
For instruments with plastic cable glands, use the supplied clamps to connect the shielding to the metal base plate of the
wiring terminal box.
2.4.1.1 Analog/RS232
Connection terminals:
D
Display
M
Main
A
Actuator
V
Valve
Fuses:
1
main
2
actuator
2.4.1.2 FLOW-BUS/Modbus
Connection terminals:
B
Fieldbus
C
Fieldbus
D
Display
M
Main
A
Actuator
V
Valve
Fuses:
1
main
2
fieldbus
3
actuator
2.4.1.3 PROFIBUS DP
Connection terminals:
B
Fieldbus
C
Fieldbus
D
Display
M
Main
A
Actuator
V
Valve
Fuses:
1
main
2
actuator

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Instruction Manual MI Series Industrial mini CORI-FLOW™ 9.17.120A14
2.4.1.4 EtherCAT/PROFINET
Connection terminals:
B
Fieldbus (RJ-45)
C
Fieldbus (RJ-45)
D
Display
M
Main
A
Actuator
V
Valve
Fuses:
1
main
2
actuator
2.5 Optional fieldbus interface
FLOW-BUS
FLOW-BUS is a Bronkhorst® designed fieldbus, based on RS485 technology, for digital communication between devices,
offering the possibility of host-control by a Windows computer.
Characteristics:
·Baud rate 187500 (default) or 400000 Baud
·+15…24 Vdc supply voltage
·Easy installation and communication with other Bronkhorst® devices
·Automatic node search and bus optimization (gap fixing)
·RS232 communication (ProPar) with Windows computer (local host)
·Connection of up to 120 instruments on a single bus
·Maximum bus length: 600 m
Consult Instruction manual FLOW-BUS interface (document no. 9.17.024) for more information about setting up a
FLOW-BUS network.
See also section Bus termination switches for information about the built-in bus termination resistor.
Modbus
Modbus is a 3-wire, RS485-based fieldbus communication system for parameter value exchange. In this system each
instrument/device is equipped with a micro-controller for its own dedicated task. The instrument behaves as a slave, which
means all communication (instructions and readout) is initiated by a master device on the Modbus system.
Characteristics:
·Baud rate selectable between 9600 and 256000 Baud (default: 19200 Baud)
·+15…24 Vdc supply voltage
·Connection of up to 247 instruments on a single bus
·Supports RTU and ASCII protocols
Consult Instruction manual Modbus interface (document no. 9.17.035) for more information about setting up a
Modbus network.
See also section Bus termination switches for information about the built-in bus termination resistor.

Bronkhorst®
Instruction Manual MI Series Industrial mini CORI-FLOW™9.17.120A 15
PROFIBUS DP
PROFIBUS DP is a 2-wire, RS485-based industrial data communication standard (fieldbus) which allows automation
components (e.g. sensors, actuators and controllers) to exchange information.
Consult Instruction manual PROFIBUS DP interface (document no. 9.17.025) for more information about setting up a
PROFIBUS DP network.
See also section Bus termination switches for information about the built-in bus termination resistor.
EtherCAT®
Ethernet for Control Automation Technology (EtherCAT®) is an open high performance Ethernet based fieldbus system.
Consult Instruction manual EtherCAT® interface (document no. 9.17.063) for more information about setting up an
EtherCAT® network.
PROFINET
The PROFINET interface is 100% Ethernet compatible and is used for data exchange between I/O controllers (PLC, etc.) and
I/O devices (slaves, field devices). PROFINET uses the proven communication model and application view of PROFIBUS DP.
Consult Instruction manual PROFINET interface (document no. 9.17.095) for more information about setting up a
PROFINET network.
HART
HART is a bi-directional communication protocol, owned by the FieldComm Group, for sending and receiving digital
information across the 4…20 mA analog current loops that connect the vast majority of field instruments with distributed
control systems. HART technology offers a reliable solution for plant operators who seek the benefits of digital
communication, while preserving existing analog instrumentation and plant wiring.
Characteristics:
·Baud rate: 1200 baud
·Easy remote access to digital functionality of instrument over analog wiring
·Digital communication across 4…20 mA analog output
Detailed information about the HART protocol can be found on the FieldComm website: www.fieldcommgroup.org

Bronkhorst®
Instruction Manual MI Series Industrial mini CORI-FLOW™ 9.17.120A16
3Operation
After correct installation and taking all necessary safety precautions, the mini CORI-FLOW™ can be used to measure and/or
control the required flow rates.
3.1 Powering up and powering down
·It is recommended to turn on power before applying fluid pressure and to switch off power only after relieving fluid
pressure.
·For best performance, allow the device to warm up and stabilize for at least 30 minutes before starting measurement
and/or control. This may be done with or without media flow.
When applying pressure, avoid pressure shocks and bring the fluid system gradually up to the level of the specified
operating conditions; open and close the fluid supply gently.
3.2 First use
Adequate mass flow measurement is only possible if the fluid flows through the instrument in a single state (either gas or
liquid). To prevent so called 'slug flow' (two-phase flow) at start-up, take the following measures before starting
measurement and control:
·for liquid applications, expel (dissolved) gas from the system, by flushing the instrument and all fluid lines with the
process fluid at a relatively high flow rate
·for gas applications, expel condensation from the system, by purging the instrument and all fluid lines with a dry gas at
a relatively high flow rate
In systems for use with corrosive or reactive media, purging for at least 30 minutes with a dry, inert gas (like Nitrogen or
Argon) is absolutely necessary before use. After use with corrosive, reactive or hazardous media (e.g. toxic or flammable),
purging is also necessary before the fluid system is exposed to air.
The very first time the instrument is used, adjusting the zero point is recommended. See Adjusting zero point for
background information and instructions.
3.3 Valve Safe State
When a controlling instrument is not powered, the control valve automatically returns to its default state (also called Safe
State), which is closed for a 'normally closed' valve (n/c) and fully open for a 'normally open' valve (n/o). To protect the
system, certain events (such as communication errors) may cause the instrument to switch to Valve Safe State (see also LED
indications).
Check the serial number label or the technical specifications to see which valve type is used on your instrument (if
applicable).
3.4 Mass flow measurement and control
When powering up, the instrument needs a couple of seconds to start up the electronics. As soon as the start-up sequence
has finished (green LED glows continuously), the instrument is ready to measure mass flows, however, optimal accuracy is
only reached after warming up (see Powering up and powering down).
After powering up, the control valve closes (normally open) or stays closed (normally closed). The valve stays closed until
the instrument receives a setpoint from the active setpoint source. The internal PID controller then immediately opens the
control valve, until the measured flow rate matches the setpoint. It maintains the resulting flow rate until another setpoint
is given.
3.5 Temperature considerations
Although the mini CORI-FLOW™ has excellent temperature stability, the best accuracy is achieved when temperature
gradients within and across the instrument are avoided. Take the following guidelines into account:

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Instruction Manual MI Series Industrial mini CORI-FLOW™9.17.120A 17
·To avoid simultaneous heating and cooling of different parts of the instrument, make sure the ambient temperature is
as stable and evenly distributed across the environment as possible.
·Avoid temperature shocks; heating or cooling should amount to no more than 1 °C per second.
·Make sure that the media temperature matches the ambient temperature as closely as possible.
·The mini CORI-FLOW™ will show an amount of self heating, due to power dissipation of the electronics. This effect can
be as large as approximately 15 °C (depending on media and ambient temperature). In practice, there will be a balance
between media temperature, self heating and ambient temperature.
·Operation in a cool environment can compensate somewhat for the effect of high media temperatures.
·Heating and cooling effects will also depend on the cooling/heat conducting capacities of the installation itself on which
the instrument is mounted.
Make sure the temperature in the housing does not exceed 70°C, otherwise the electronics might get damaged. To check
this, the internal temperature output can be used (parameter Temperature, e.g., via FlowDDE or a readout and control
unit (E-8000 or BRIGHT)).
3.6 Communication
The following table lists the supported communication modes of the mini CORI-FLOW™:
Connection
Type
Communication standard
Fieldbus/protocol
Main terminal
Analog
0…5Vdc
0…10Vdc
0…20mA
4…20mA
n/a
Digital
RS232
ProPar
RS485
FLOW-BUS
Modbus (RTU/ASCII)
HART
HART
Fieldbus terminal
Digital
RS485
FLOW-BUS
Modbus (RTU/ASCII)
PROFIBUS DP
Ethernet
PROFINET
EtherCAT®
The communication standards (analog and digital) and fieldbus interface (if applicable) are specified at ordering time, i.e.:
·In analog mode, the instrument is set to the specified voltage/current range
·The dedicated fieldbus connection only provides the specified fieldbus interface
Using analog and digital interfaces simultaneously
The instrument can be operated via the analog and the digital interface at the same time; analog signals and digital
parameters can be read (or changed) simultaneously. The instrument accepts a setpoint from either the analog or any of the
digital interfaces (this is called the control mode; see Special parameters for more information). In analog mode, the analog
input and output signals are translated to the digital setpoint and measure parameter respectively. The default control
mode (analog or digital) is selected at ordering time.
3.6.1 Analog operation
With analog operation the following signals are available:
·output signal: measured value
·input signal: setpoint (controller only)
Setpoints below 2% of the full scale will be interpreted as 0%.

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Instruction Manual MI Series Industrial mini CORI-FLOW™ 9.17.120A18
3.6.2 Digital RS232 operation
Digital operation via RS232 or fieldbus (RS485) adds extra features to the instrument, such as:
·Direct reading with a readout/control module or host computer
·Diagnostics
·Multi-fluid functionality (up to 8 fluids, if ordered; see Fluid set)
·Device identification
·Secondary measurement outputs: density and temperature readout
·Adjustable minimum and maximum alarm limits (Alarms)
·(Batch) counter (Counter)
The instrument can always be operated via RS232 through the micro USB service connection in the wiring terminal box,
even if it is configured for RS485 operation. Connecting the device with a micro USB to USB2.0 adapter cable to a Windows
computer enables RS232 operation with the free Bronkhorst® FlowWare software suite for Windows. See also section
Service port.
3.6.2.1 FlowDDE
Digital Bronkhorst® instruments can be operated via RS232 using the Bronkhorst® FlowDDE server application. Dynamic
Data Exchange (DDE) provides a basic level of inter process communication between Windows applications. 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. For instance, a cell in a Microsoft Excel
spreadsheet can be linked to the measured value of an instrument; FlowDDE updates the cell automatically when the
measured value changes.
FlowDDE uses specific parameter numbers for communicating with the instrument. A DDE parameter number is a unique
number in a special FlowDDE instruments/parameter database and not the same as the parameter number from the process
on an instrument. FlowDDE translates the node-address and process number to a channel number.
DDE-client applications communicate with the FlowDDE server by using DDE messages. Before messages can be exchanged,
a DDE link has to be made. A DDE link consists of three parts: the server, the topic and an item. For separation the characters
'|' and '!' may be used, so a DDE link in e.g. Microsoft Excel becomes: Server|Topic!Item.
For standard instrument parameters and the FlowDDE server, these are:
·Server: FlowDDE or FlowDDE2
·Topic: ‘C(X)’ for channel number X
·Item: ‘P(Y)’ for parameter number Y
An example of a DDE link in a Microsoft Excel cell is =FlowDDE|’C(1)’!’P(8)’ to read parameter 8 of channel 1.
When not using FlowDDE for communication with the
instrument, parameters are addressed by:
·Node address of the instrument
·Process number on the instrument
·Parameter number on the instrument
See section Digital parameters for more information about
instrument parameters.
For more information about FlowDDE, including setting up a DDE link, consult the FlowDDE Manual (document no.
9.17.067) or the help file in the application.

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3.6.2.2 Software (DDE applications)
Examples of free Bronkhorst® DDE client applications: FlowPlot and FlowView. Other software programs (third party)
supporting DDE are for example MS-Office, LabVIEW, InTouch and Wizcon.
Bronkhorst® software applications 'FlowView' (left) and 'FlowPlot' (right)
FlowDDE and other Bronkhorst® applications are available on the support CD or can be downloaded from the product
pages on the Bronkhorst website: www.bronkhorst.com/products
3.6.3 Fieldbus operation
FLOW-BUS
Digital Bronkhorst® instruments can be monitored and operated via RS232 using the free FlowWare software tools for
Windows. These tools provide a graphical interface to the ProPar protocol (used by FLOW-BUS), for monitoring and
changing instrument parameters.
The FlowWare toolkit provides functionality for monitoring and operating digital instruments (FlowPlot, FlowView) and
selection of the active fluid and configuration of the fieldbus connection (if applicable). For instruments that support the
definition and use of multiple fluids FlowTune™ can be used to define and store fluids in the instrument and select the
active fluid.
Digital instrument parameters are made accessible by FlowDDE, a Dynamic Data Exchange server (DDE) that handles
communication between the instrument and (dedicated) client software in Windows (e.g. FlowPlot). FlowDDE can also be
used by other client applications, such as Microsoft Office or custom made software, built with third party development
software like LabVIEW or a SCADA platform.
The FlowWare tools and associated documentation can be downloaded from the product pages on the Bronkhorst website:
www.bronkhorst.com/products
Modbus
Instruments in a Modbus system can be monitored and operated using third party software as a master device, such as
LabVIEW, ModScan, or a Modbus PLC.

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PROFIBUS-DP
Instruments in a PROFIBUS DP system can be monitored and operated using third party software as a master device, such as
TIA Portal (by Siemens).
To configure a device, a so-called GSD file (General Station Description) can be loaded into the software. The GSD file
contains all necessary configuration information to operate the device in a PROFIBUS DP system, including communication
and network configuration, and all available operating parameters with their data types.
A GSD file for Bronkhorst® instruments can be downloaded from the product pages on the Bronkhorst website:
www.bronkhorst.com/products
PROFINET
Instruments in a PROFINET system can be monitored and operated using third party software as a master device, such as TIA
Portal (by Siemens).
To configure a device, a so-called GSDML file (General Station Description Markup Language) can be loaded into the
software. The GSDML file contains all necessary information, in XML format, to operate the device in a PROFINET system,
including communication and network configuration, and all available operating parameters with their data types.
A GSDML file for Bronkhorst® instruments can be downloaded from the product pages on the Bronkhorst website:
www.bronkhorst.com/products
EtherCAT®
Instruments in an EtherCAT® system can be monitored and operated using third party software as a master device, such as
SyCon® (by Hilscher GmbH).
To configure a device, a so-called ESI file (EtherCAT® Slave Information) can be loaded into the software. The ESI file contains
all necessary configuration information to operate the device in a EtherCAT® system, including communication and network
configuration, and all available operating parameters with their data types.
An ESI file for Bronkhorst® instruments can be downloaded from the product pages on the Bronkhorst website:
www.bronkhorst.com/products
HART
Monitoring and operating instruments in a HART system can be done using third party software as a master device.
To configure a device, a so-called DD file (Device Description) can be loaded into the software. The DD file contains all
necessary configuration information to operate the device in a HART system, including communication and network
configuration, and all available operating parameters with their data types.
Because the HART protocol uses the analog output line of the instrument, it can be combined with any of the other
interfaces (analog and digital). It can even be monitored and operated simultaneously with another fieldbus interface,
however, when writing values to the same parameter from two digital interfaces, the last interface to send a value prevails.