manual mini CORI
Instruction Manual
mini CORI-FLOW ML120
(Ultra) Low Flow Coriolis
Mass Flow Meters / Controllers
Doc. no.: 9.17.097D Date: 21-12-2015
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.
Bronkhorst®
Disclaimer
The information in this manual has been reviewed and is believed to be wholly reliable. No responsibility, however, is
assumed for inaccuracies. The material in this manual is for information purposes only.
Copyright
All rights reserved. This documentation is protected by copyright.
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® 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.
Symbols
Important information. Discarding this information could cause injuries to people or damage to the instrument or
installation.
Helpful information. This information will facilitate the use of this instrument.
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Additional info available on the internet or from your local sales representative.
Receipt of equipment
Check the outside packing box for damage incurred during shipment. When the packing 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
local sales representative.
Carefully remove the equipment from the packing box. Verify that the equipment 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 local sales representative.
Check the packing list to ensure that you received all of the items.
Do not discard spare or replacement parts with the packing material and inspect the contents for damage.
Refer to "Removal and return instructions" about return shipment procedures.
Equipment storage
The equipment should be stored in its original packing in a cupboard warehouse or similar. Care should be taken not to
subject the equipment to excessive temperatures or humidity.
2
mini CORI-FLOW ML120
9.17.097
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 subjected 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.
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See also paragraph 9 of the Conditions of sales:
http://www.bronkhorst.com/files/corporate_headquarters/sales_conditions/en_general_terms_of_sales.pdf
The warranty includes all initial and latent defects, random failures, and undeterminable 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® or affiliated company prepays outgoing freight charges when any part of the service is performed under
warranty, unless otherwise agreed upon beforehand, however, if the product has been returned collect to our factory or
service center, these costs are added to the repair invoice. Import and/or export charges, foreign shipping methods/carriers
are paid by the customer.
9.17.097
mini CORI-FLOW ML120
3
Bronkhorst®
Table of contents
1
. . . this
. . . . . manual
....................................................................................................6
Scope of
1.1
Introduction
............................................................................................................6
1.2
Intended
. . .use
.........................................................................................................6
1.3
Product. description
...........................................................................................................6
1.4
References
. . . . to
. . . other
. . . . . . applicable
. . . . . . . . . . . documents
....................................................................................7
1.5
Model key
............................................................................................................7
2
Starting
. . .up
.........................................................................................................8
2.1
Check functional
. . . . . . . . . . .properties
.................................................................................................8
2.2
Check operating
. . . . . . . . . . conditions
..................................................................................................8
2.2.1
Rated pressure
. . . . . . . . test
. . . . .inspection
...............................................................................................8
2.2.2
Seals
2.2.3
Environmental
. . . . . . . . ratings
....................................................................................................8
2.3
Piping requirements
............................................................................................................8
2.4
Instrument
. . . . .mounting
.......................................................................................................9
2.5
Leak Check
............................................................................................................9
2.6
Electrical. . connection
..........................................................................................................9
2.7
Analog. ./. digital
. . . . . . . operation
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10
2.7.1
Analog. ./. local
. . . . . .operation
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10
2.7.2
Digital. RS232
. . . . . . .operation
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10
2.7.3
Digital. RS485
. . . . . . ./. bus
. . . . .operation
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10
2.8
Micro switch
. . . . . . . operation
. . . . . . . . . . . and
. . . . .LED
. . . . .indication
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11
2.9
Zeroing
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11
2.9.1
Zeroing
. . .using
. . . . . . micro
. . . . . . .switch
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12
2.9.2
Zeroing
. . .through
. . . . . . . . .digital
. . . . . . . communication
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12
2.10
Purging
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13
2.11
Supply. .pressure
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13
2.12
Calibration
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13
2.13
Maintenance
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13
2.14
Temperature
. . . . . . . .considerations
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14
3
Basic operations
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15
3.1
Mass flow
. . . . .measurement
. . . . . . . . . . . . . . .and
. . . . control
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15
3.1.1
Changing
. . . . .control,
. . . . . . . . range
. . . . . . .and
. . . . operating
. . . . . . . . . . . conditions
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15
3.1.2
Valve Safe
. . . . . State
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16
3.2
Communication
. . . . . . . . . . . interfaces
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16
3.2.1
Using multiple
. . . . . . . . . .interfaces
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16
3.3
Analog. .operation
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17
3.3.1
Hook-up
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17
3.4
Basic RS232
. . . . . . operation
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17
3.4.1
Hook-up
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17
3.4.1.1
E-8000. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18
3.4.1.2
BRIGHT. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18
3.4.2
FlowDDE
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18
3.4.3
Software
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19
3.4.4
Baud rate
. . . . setup
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19
3.4.5
Basic RS485
. . . . . . (FLOW-BUS/Modbus)
. . . . . . . . . . . . . . . . . . . . . . .operation
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20
3.4.5.1
FLOW-BUS
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20
4
............................................................................................................8
mini CORI-FLOW ML120
9.17.097
Bronkhorst®
3.4.5.2
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20
Modbus
3.4.6
Hook-up
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20
3.4.7
Software
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21
3.4.8
Baud rate,
. . . . .node
. . . . . .address
. . . . . . . . and
. . . . . parity
. . . . . . .setup
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22
3.5
Other field
. . . . . bus
. . . . .configurations
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22
3.5.1
Hook-up
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23
3.5.2
Baud rate,
. . . . .node
. . . . . .address
. . . . . . . . and
. . . . . parity
. . . . . . .setup
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23
3.6
LED indications
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24
3.7
Micro switch
. . . . . . . functions
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 25
3.8
Basic parameters
. . . . . . . . . . . .and
. . . . .properties
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 26
3.8.1
Introduction
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 26
3.8.2
Basic identification
. . . . . . . . . . . . . . parameters
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 28
3.8.3
Basic alarm
. . . . . . and
. . . . .counter
. . . . . . . . settings
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 28
3.8.4
Zeroing
. . .(using
. . . . . . .digital
. . . . . . .operation)
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 28
3.8.5
Instrument
. . . . . .parameter
. . . . . . . . . . . list
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 29
3.8.6
Basic measurement
. . . . . . . . . . . . . . .and
. . . . control
. . . . . . . . parameters
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 30
4
Advanced
. . . . . . operation
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 32
4.1
Advanced
. . . . .parameters
. . . . . . . . . . . .and
. . . . properties
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 32
4.1.1
Advanced
. . . . .measurement
. . . . . . . . . . . . . . .and
. . . . control
. . . . . . . . parameters
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 32
4.1.2
Special. .instrument
. . . . . . . . . . . .parameters
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 33
4.1.3
Advanced
. . . . .fluidset,
. . . . . . . . range
. . . . . . . and
. . . . .operating
. . . . . . . . . . conditions
. . . . . . . . . . . . parameters
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 35
4.1.4
Advanced
. . . . .alarm
. . . . . . parameters
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 38
4.1.5
Advanced
. . . . .counter
. . . . . . . . parameters
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 40
4.2
Field bus
. . . .operation
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 41
4.2.1
FLOW-BUS
. . . . . master/slave
. . . . . . . . . . . . . . controller
. . . . . . . . . . .operation
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 41
4.2.2
Changing
. . . . .baud
. . . . . .rate,
. . . . .node
. . . . . .address
. . . . . . . . and
. . . . .parity
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 42
4.3
Special. .instrument
. . . . . . . . . . . .features
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 44
4.3.1
Customized
. . . . . . .IO
. . .options
. . . . . . . . (pin
. . . . .5). . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 44
4.3.2
Changing
. . . . .default
. . . . . . . .control
. . . . . . . .mode
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 46
5
Troubleshooting
. . . . . . . . . . . . . . .and
. . . . .service
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 46
5.1
Diagnostics
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 46
5.2
Troubleshooting
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 47
5.3
Service. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 49
6
Removal
. . . . .and
. . . . .return
. . . . . . . . instructions
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 50
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1
Scope of this manual
1.1
Introduction
This manual covers the general part of digital mini CORI-FLOW ML120 mass flow instruments for gases and liquids. It treats
the general instructions needed for the instruments. More information can be found in other documents.
1.2
Intended use
Mini CORI-FLOW ML120 series by Bronkhorst® are precise and compact Mass Flow Meters and Controllers for liquids and
gases, based on the Coriolis measuring principle. Designed to cover the needs of the (ultra) low flow market, from 5 g/h up
to 200 g/h (full scale values), the ML120 offers “multi-range” functionality: factory calibrated ranges can be rescaled by the
user, maintaining the original accuracy specs.
1.3
Product description
The Bronkhorst® series mini CORI-FLOW ML120 is a mass-flow meter/controller and is an accurate device for measuring gas
and liquid flows up to 200 bara depending on body rating, virtually independent of pressure and temperature changes. The
mini CORI-FLOW is a real mass-flow meter/controller and measures the flow in mass, it does not matter what the properties
of the gases or liquids are. The system can be completed with an internal piezo control valve and a flexible readout unit to
measure and control gas and liquid flows.
Instruments of the mini CORI-FLOW series 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 pc-board. The resulting output signal is strictly proportional to the real mass flow rate.
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 instrument
Thanks to extremely high linearity of the sensor, (mini) CORI-FLOW instruments can be easily re-ranged to a different full
scale range (100% point). The analog output and the digital measured flow value will be scaled to this FS 100% point.
E.g. an ML120 can be used for a full scale between 5 g/h and 200 g/h.
Switching between these ranges can be realized using fieldbus, E-8000, Bright module or RS232 interface. There is free
tooling software (FlowPlot) available for this purpose. (mini) CORI-FLOW instruments will get a calibration certificate for all
possible FS ranges. The actual FS of the instrument is set to a value wanted by the customer and can be found on the gray
label on the instrument.
Accuracy
The accuracy of a (mini) CORI-FLOW is either 0.2% reading for liquids or 0.5% reading for gases.
This specification is based on mass flow (e.g. g/h, kg/h, etc.). If the instrument will be used on volume flow (e.g. l/h, ml/min,
etc) this will introduce an extra inaccuracy, based on the actual density (measurement). In all instruments capable of density
measurement there will be an automatic adjustment for change in density.
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1.4
References to other applicable documents
Basic instructions
Dimensional drawings
Document 9.17.093
Quick installation guide mini CORI-FLOW ML120
Document 7.05.925
Dimensional drawing mini CORI-FLOW ML120
Advanced instructions
Hook-up diagrams
Document 9.17.024
Instruction manual FLOW-BUS interface
Document 9.16.132
Hook-up diagram ML Series instruments RS232 and Analog
Document 9.17.025
Instruction manual PROFIBUS DP interface
Document 9.16.133
Hook-up diagram ML Series instruments FLOW-BUS
Document 9.17.026
Instruction manual DeviceNetTM interface
Document 9.16.134
Hook-up diagram ML Series instruments PROFIBUS DP
Document 9.17.027
Instruction manual RS232 interface
Document 9.16.135
Hook-up diagram ML Series instruments DeviceNetTM
Document 9.17.035
Instruction manual Modbus interface
Document 9.16.136
Hook-up diagram ML Series instruments Modbus
Document 9.17.063
Instruction manual EtherCAT® interface
Document 9.16.137
Hook-up diagram ML Series instruments EtherCAT®
Document 9.17.095
Instruction manual PROFINET interface
Document 9.16.146
Hook-up diagram ML Series instruments PROFINET
Document 9.16.118
Hook-up diagram LAB MBC3 Custom bus & IO configurations
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1.5
9.17.097
These documents can be found at: http://www.bronkhorst.com/en/downloads
Model key
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2
Starting up
2.1
Check functional properties
Before installing your mini CORI-FLOW ML120 Coriolis mass flow meter/controller it
is important to read the label on the backside of the instrument and check:
· Flow rate
· Fluid to be measured
· Up- and downstream pressures
· Temperature
· Valve type (NO= Normally Opened)
· Input/output signal (see also section 2.6)
2.2
Check operating conditions
2.2.1
Rated pressure test inspection
Each CORI-FLOW is pressure tested to at least 1.7 times the working pressure of the process conditions provided by the
customer, with a minimum of 340 bar(a) for meters and 8.5 bar(a) for controllers. Each instrument is helium leak tested to at
least 2*10-9 mbar l/s Helium outboard.
The tested pressure is stated on the instrument with a RED COLOURED sticker.
Check this test pressure before installing the instrument in the application. If the
sticker is not available or the test pressure is incorrect, the instrument should not
be mounted in the process line and be returned to the factory.
Mass Flow Meter
NOTE! Tested pressure is higher than the maximum operating pressure.
Mass Flow Controller
2.2.2
Seals
mini CORI-FLOW ML120 instruments are equipped with seals (O-rings, gaskets or plungers), compatible with the gas or
liquid type(s) specified at the ordering form. If another liquid or gas is used, always make sure that the specified seals are
compatible with this fluid.
Bronkhorst® cannot be held responsible for any damages caused by the user, applying the instruments for fluids that were
not specified during purchase, or caused by exceeding the indicated maximum operating pressure/temperature.
2.2.3
Environmental ratings
Each instrument housing style incorporates several provisions to comply with EMC requirements valid for these
instruments. The Lab-style instrument housing is rated at IP40.
Conditions for compliance with EMC requirements
Compliance with the EMC requirements is not possible without the use of proper cables and connector/gland assemblies.
For good results Bronkhorst® can provide standard cables. Otherwise follow the guidelines as stated in section 2.6 Electrical
connection.
2.3
Piping requirements
MAKE SURE THAT THE PIPING IS ABSOLUTELY CLEAN! Particles can damage or clog the instrument. The piezo valve’s
metal membrame can be seriously damaged by particles in the fluid.
Warning!
During the manufacturing process, the instruments have been tested with water. Despite the fact that the instruments have
been purged thoroughly afterwards, we cannot guarantee that the delivered instruments are absolutely free from water
droplets. Bronkhorst® strongly recommends performing an additional, adequate drying procedure for those applications
where remaining water particles may cause undesired reactions such as corrosion.
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2.4
Instrument mounting
For the mini CORI-FLOW ML120 proper stable mounting is
strongly advised on a rigid, solid base for optimal accuracy. For
optimal isolation for vibrations in the area, rubber dampeners
can be used.
In the right picture we show an example of a mini CORI-FLOW
ML120 with a mass block, one of the options Bronkhorst® can
provide for isolation of vibrations in the environment where the
instrument is used.
Please see Quick Installation Guide, document nr.
9.17.093 for more detailed information about mounting.
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2.5
Leak Check
Bronkhorst® mini CORI-FLOW meters/controllers are equipped with compression or face-seal-fittings.
For leak tight installation of compression type fittings make sure that the tube is inserted to the shoulder in the fitting body
and that no dirt or dust is present on tube, ferrules or fittings. Tighten the nut finger-tight; while holding the instrument
and then tighten the nut 1 turn.
If applicable follow the guidelines of the supplier of the fittings. Special types of fittings are available on request.
Note: Always check your system for leaks, before applying fluid/gas pressure. Especially if toxic, explosive or other
dangerous fluids are used.
2.6
Electrical connection
Electrical connection must be made with standard cables or according to the applicable hook-up diagrams. The factory
installed 9-pin sub-D settings are indicated on the instrument back-side label. Make sure that the power supply is suitable
for the power ratings as indicated on the instrument label and that double or reinforced insulation is
used for the power supply.
Bronkhorst® recommends using their standard cables. These cables have the right connectors and if loose ends are used,
these will be marked to prevent wrong connection.
i
Applicable hook-up diagrams for ML120 series can be found at: http://www.bronkhorst.com/en/downloads
www
ML120 series instruments are powered with +15…+24 Vdc. Several hook-up examples and standard cables are found in
chapter 3.
The instruments contain electronic components that are susceptible to damage by electrostatic discharge. Proper
handling procedures must be taken during installation, removing and connecting the electronics.
The instruments described in this manual carry the CE-mark and are compliant with the 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 if loose ends are used,
these will be marked to prevent wrong connection. When using other cables, cable wire diameters should be sufficient to
carry the supply current and voltage losses must be kept as low as possible. When in doubt: contact your distributor.
When connecting the system to other devices (e.g. PLC), be sure that the integrity of the shielding is not affected. Do not
use unshielded wire terminals.
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2.7
Analog / digital operation
2.7.1
Analog / local operation
Digital instruments can be operated with analog signals through the Sub D9 connector. The instruments are compatible in
use with analog instruments on this point.
At analog operation the following parameters are available:
- measured value
- setpoint (controllers only)
Connect the ML120 series instrument to the power supply/readout unit using a cable with 9-pin sub-D connector according
to the Bronkhorst® standard for the Sub-D9 connector. The next two examples have the following electrical properties:
Power
: +15...+24 Vdc
Example 1
Example 2
Analog output : 0...5 Vdc / 0...10 Vdc
0...20 mA / 4...20 mA
Analog input
: 0...5 Vdc / 0...10 Vdc
(controller)
0...20 mA / 4...20 mA
When operating the instrument through the analog interface it is possible to connect the instrument to any supported
fieldbus system (or RS232-interface with special cable) for reading/changing parameters (e.g. controller response).
2.7.2
Digital RS232 operation
Digital operation over RS232 can be established when using the following setup
or using a Bronkhorst® E-8000 readout/control unit. See section 3.4.1 for
connecting
to an E-8000.
Connecting the instrument with an RS232 cable or an RS232 cable with a USB to
RS232 converter to a PC will allow you to use (free) Bronkhorst® software for
Windows, such as FlowDDE and FlowPlot.
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2.7.3
A PiPS (Plug-in Power Supply, art.nr.: 7.03.422) is available to power a single instrument and can be used instead of the
DB9 Loose-end cable as shown in the example above. Detailed information can be found in the manual PiPS (9.17.055)
which can be downloaded at the download section from the website: http://www.bronkhorst.com/en/downloads
Digital RS485 / bus operation
With digital operation over RS485 or Ethernet a bus-system with multiple instruments can be set up. For RS485 FLOW-BUS
or Modbus operation over the 9-pin sub-D connector or via an additional field bus driver (if installed), see section 3.5. For
operation via other additional field bus systems (e.g. DeviceNetTM, EtherCAT®), refer to section 3.6 or the specific field bus
manual.
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2.8
Micro switch operation and LED indication
Using the two colored LEDs and the micro switch on the ML120 series,
several actions can be monitored and started.
· The green LED is used for status indication.
· The red LED is used for errors, warnings and messages.
· The switch can be used to start several actions, such as auto-zero,
restore factory settings and bus-initialization actions, if applicable.
•
•
For the zero-procedure see section 2.9, 'Zeroing'.
For a overview or possible LED indication see section 3.6, 'LED indications'.
The micro switch on top of the ML120 series can be operated with a thin, metal or hard plastic pin. For example the end of
a paperclip.
2.9
Zeroing
Zeroing of a (mini) CORI-FLOW instrument is required each time process conditions have been changed.
What is zero-stability?
Due to mechanical construction of the sensor tubes each (mini) CORI-FLOW sensor will have a very small offset signal, even
when the mass flow is zero. This is called the zero-stability error and is specified for accuracy separately for all Coriolis
instruments. Main reason for this is the fact that this error can be (temporarily) neutralized after performing a zero-action.
Immediately after zeroing, zero-stability error is 0%. However, it is allowed to move between a certain band depending on
the environment (process) and fluid conditions.
In ideal situations, where actual process conditions do not change, this error will remain the same.
See below for possible reasons of change of zero-stability. See also Section 3.5.9 to learn how to zero.
Model*
DN (mm)
ML120
0.25
* Zero-stability depends on the (mini) CORI-FLOW model
Zero-stability
Nominal flow
< 0.01 g/h
100 g/h
NOTE: In practice zero-stability turns out to be better than the values in the table, but for calculation we will take worst
case values.
Process conditions
Each time process conditions have been changed significantly a (mini) CORI-FLOW needs to be zeroed in order to get rid of
the offset error due to zero-stability. At least the very first time an instrument is used a zero procedure will be required.
The zero-stability error will mainly change when one or more of the following items change significantly:
· Temperature (of fluid or environment)
· Mounting of the (mini) CORI-FLOW instrument
Less important items:
· Pressure
· Density of fluid
· Vibrations working on instrument via environment
· Pulsation of supply pressure working on instrument
Zero Procedure
There are two ways to perform zeroing of a (mini) CORI-FLOW instrument:
1. Zeroing with the Micro-switch
2. Zeroing through digital communication
Important: Always make sure that there is absolutely no flow when the instrument is performing the (auto-)zero procedure
and there are no vibrations or pulsating inlet pressures.
If the instrument has problems finding a proper and stable zero, it will repeat the auto-zero procedure a few times (max. 4
times). Each time when no proper zero can be achieved, the instrument will give a short notice, signaling its LED’s after the
procedure. The red and green LED will blink turn-by-turn for a few seconds to indicate that the auto-zero wasn’t able to find
a zero (because of too much noise in the signal). This is mostly the case when the instrument is placed in a vibrating
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environment. When ready zeroing after trying several (max. 4) times, the final result for the zero value will be a moving
average value of all attempts. The instrument will save this zero value into its non-volatile memory and will keep this value
until a next zero-procedure will be performed. The mini CORI-FLOW will accept a proper zero only if the measured signal is
within a limited noise band. Best way to achieve this is to avoid external noise influences. However, when this is not
possible, filter settings of the mini CORI-FLOW can be changed to improve noise immunity.
2.9.1
Zeroing using micro switch
The zero-point of each instrument is factory adjusted. If so required the zero point may be readjusted over RS232, fieldbus or by means of using the micro switch. Procedure for zeroing by micro
switch (for zeroing through a command via BUS/RS232 see section 3.9.5):
1. Set process conditions
Warm-up, pressure up 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.
3. Press and hold, until GREEN l LED is on, than release button
Press micro switch and hold it. After a short time the red LED will go ON and OFF, then the green LED will go ON. At
that moment (which is 8...12 s after pressing) release the switch.
4. Zeroing
The zeroing procedure will start at that moment and the green LED will blink fast. The procedure will take approx. 40
seconds.
5. Ready
When the indication is showing 0% signal and the green indication LED is burning continuously again, then the
zeroing action was successful.
•
•
•
•
2.9.2
Zeroing through digital communication
It is also possible to start the zero adjustment procedure through digital communication:
· Through FLOW-BUS, using an E-8000 readout/control module.
· Through FLOW-BUS, via a RS232/FLOW-BUS converter using software on a PC or PLC.
· Through RS232, using software on a PC or PLC
· Through RS232, using a Bright compact local readout/control module
· Through other fieldbus system (PROFIBUS-DP/DeviceNet/ModBus)
The following parameters must be used for zeroing an instrument:
Initreset
[unsigned char, RW,0...255, DDEpar. = 7, Proces/par. = 0/10]
Cntrlmode
[unsigned char, RW,0...255, DDEpar. = 12, Proces/par. = 1/4]
CalMode
[unsigned char, RW,0...255, DDEpar. = 58, Proces/par. = 115/1]
1. Set process conditions
Warm-up, pressure up the system and fill the instrument according to the process conditions.
2. Stop flow
Make sure there is no flow through the instrument by closing the shut-off valves before and after the instrument.
3. Send parameters
Send the following values to the parameters in this sequence.
o Initreset 64
o Cntrlmode 9
o Calmode 255
o Calmode 0
o Calmode 9
4. Zeroing
The zeroing procedure will start at that moment and the green LED will blink fast. The zeroing procedure waits for a
stable signal and saves the zero. If the signal is not stable zeroing, it will take a long time and the nearest point to zero is
accepted. The procedure will take approx. 40 sec.
Make sure there is no flow through the instrument when performing the zeroing procedure.
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5. Ready
When indication is showing 0% signal and the green indication LED is burning continuously again, then zeroing has
been performed well. Also parameter control mode goes back to its original value. As last send 0 to parameter ‘initreset’.
2.10
Purging
Do not apply pressure until electrical connections are made. When applying pressure to the system, avoid pressure shocks in
the system and increase pressure gradually. Also decrease pressure gradually when required.
If explosive gases are to be used, purge the process with inert dry gas like Nitrogen, Argon etc. for at least 30 minutes at a
high enough flow.
In systems for use with corrosive or reactive fluids, purging for at least 30 minutes with a dry, inert gas (like Nitrogen or
Argon) is absolutely necessary before use. After use with corrosive or reactive fluids, complete purging is also required before
exposing the system to air.
Prevent chemical reactions inside the tubes or instrument as this will tend to clog up or corrode the system.
Let the mini CORI-FLOW ML120 warm-up for at least 30 minutes for best accuracy.
2.11
Supply pressure
It is recommended to turn on power before applying pressure on the instrument and to switch off power after removing
pressure. Turn on fluid supply gently. Avoid pressure shocks and bring the instrument gradually up to the level of the actual
operating conditions. Also switch off fluid supply gently.
Make sure in case of a controller that the used valve can withstand the system pressure and the maximum delta pressure
allowed.
2.12
Calibration
Each mini CORI-FLOW ML120 instrument is factory calibrated. Bronkhorst® certifies that all instruments meet the rated
accuracy. Calibration is performed using measurement standards traceable to the Dutch Metrology Institute (VSL).
Calibration certificates are included in the shipment. Periodical inspection, recalibration or verification of the accuracy may
be subject to individual requirements of the end-user.
Unless specified otherwise, mini CORI-FLOW ML120 instruments are H2O calibrated.
2.13
Maintenance
No routine maintenance is required to be performed on the meters or controllers. In case of severe contamination it may be
required to clean the valve orifice separately.
If the equipment is not properly serviced, serious personal injury and/or damage to the equipment could be the result. It is
therefore important that servicing is performed by trained and qualified personnel.
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2.14
Temperature considerations
The mini CORI-FLOW has to be installed in such a way that levels of different temperature within the mini CORI-FLOW are
avoided. Avoid multiple heating and cooling of the instrument. Temperature shocks have to be avoided in any case. (max. 1°
C/sec). After using the mini CORI-FLOW the first time at low temperature tighten the connector screws again in order to
prevent any leakage!
If the equipment is not properly serviced, serious personal injury and/or damage to the equipment could be the result. It is
therefore important that servicing is performed by trained and qualified personnel.
In practice, there will be a balance between fluid temperature, self heating, cooling effects and ambient temperature at the
instrument. If the fluid is really hot, it would help if the instrument is in a cool environment. It will also depend on how well
the installation on which the instrument has been mounted is capable of cooling.
Anyway, one must take care that the instrument in the housing will not exceed the 70°C; otherwise the electronics will be
damaged. To check this, the internal temperature sensor can be used. Via FLOW-DDE/E-8000 or Bright it can be read out.
Please make sure the temperature value readout here (=actual temperature in housing) will not exceed 70°C. Below some
facts about maximum T ambient and T fluid :
Operating temperature conditions (continuous):
· Tfluid + Tambient < 110°C With:
· Tfluid < 100 °C
· Tambient < 55°C
For cleaning purpose, instrument without
power (continuous):
· 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
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3
Basic operations
3.1
Mass flow measurement and control
After correct installation of the mini CORI-FLOW ML120 series Mass Flow Meter (MFM) or Mass Flow Controller (MFC) and all
safety precautions have been taken into account (see chapter 2) the instrument can immediately be used for measuring/
controlling the required flow rate in the system by means of the selected communication interface(s).
Here are some general guidelines for mass flow measurement/control:
mini CORI-FLOW ML120 MFMs/MFCs are adjusted to the specified inlet/outlet pressure, temperature and process liquid/
gas conditions as supplied by the customer, however the instrument will function properly in a wide range of varying
conditions. It is strongly advised to use the FlowPlot TM software available with the instrument to set the correct process
conditions if the actual process conditions differ from the conditions for which the instrument is set (see section 3.1.1).
Although mini CORI-FLOW ML120 series MFMs/MFCs have excellent temperature stability, the best accuracy is achieved
when temperature gradients across the instruments are avoided; so make sure that the liquid or gas temperature equals the
ambient temperature and mount the instruments on a rigid (heat conducting) surface.
mini CORI-FLOW ML120 series MFCs handle pressure shocks in the system well, but are not insensitive to pressure
fluctuations. For optimum control stability, provide a stable (pressure controlled) inlet pressure
MASS FLOW CONTROL
When an MFC (either with normally closed (n.c.) or normally opened (n.o.)
valve) is hooked-up, the control valve closes when no setpoint is given.
When the MFC receives a setpoint from the active setpoint source, the
internal PID controller will immediately open the control valve until the
required flow rate is achieved and it will maintain that flow rate until
another setpoint is given.
3.1.1
Changing control, range and operating conditions
INSTRUMENT SETTINGS
This window allows the user to read and change several settings of digital meters and controllers. Changing these
parameters will need special knowledge about the instruments and the behavior of the instruments. This document may
not be enough to optimize an instrument. Bronkhorst® offers special trainings for field users for this. Please ask your local
representative about this. From the moment the window appears, it will take a few seconds to read all the actual parameter
values and update the screen. After that, changing a setting will immediately send the change to the instrument and the
effect of the change can be viewed in the plot window.
Channel & control mode
0 – Bus/RS232
: Digital setpoint via fieldbus or RS232
1 – Analog input
: Setpoint via analog input
3 – Valve fully closed
: Valve fully closed and stays closed under all circumstances
8 – Valve fully open
: Valve fully opened (purge) and stays opened under all
circumstances
11 – Keyboard & FLOW-BUS : Setpoint via E-8000 keyboard, bus or RS232
Capacity and unit
· Unit type: Selects the flow measurement
· Mass flow
· Volume flow
· Full scale value: Selection of the Full scale
Sensor zero
Auto zero: adjustment of zero when no flow
Note: Instrument must be warmed up No flow may flow during auto zero
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3.1.2
Valve Safe State
When an MFC is not powered, the control valve automatically returns to its 'Safe State', which is closed for a 'normally closed
(n.c.)' valve and fully opened for a 'normally opened (n.o.)' valve. During operation, certain communication errors may cause
the MFC to go to the 'Valve Safe State' mode to protect the system, e.g. when fieldbus communication fails (PROFIBUS DP,
DeviceNet™, EtherCAT® and PROFINET only). Also when fluidset configuration of the instrument is incorrect, the instrument
may go to the 'Valve Safe State' mode. See section 3.7 for more information and the LED indications for the 'Valve Safe State'
mode or section 4.2.3 for the fluidset configuration parameters.
3.2
Communication interfaces
Numerous input/output options can be installed on ML120 series instruments via both the 9-pin sub-D connector on the
side of the instrument and the optional field bus connector on top of the instrument.
Analog/RS232
· Via the 9-pin sub-D side connector the instrument can be operated by means of:
· Analog interface
(section 3.3): 0…5 Vdc; 0…10 Vdc; 0…20 mA or 4…20 mA
· Digital RS232 interface
(section 3.4 and document 9.17.027): FLOW-BUS (Propar) protocol
The following optional field bus interfaces can be installed:
· FLOW-BUS interface
(section 3.5 and document 9.17.024)
· Modbus (RTU or ASCII) interface (section 3.5 and document 9.17.035)
· PROFIBUS DP interface
(section 3.6 and document 9.17.025)
· DeviceNet™ interface
(section 3.6 and document 9.17.026)
· EtherCAT® interface
(section 3.6 and document 9.17.063)
· PROFINET interface
(section 3.6 and document 9.17.095)
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Above documents can be found at: http://www.bronkhorst.com/en/downloads
The interpretation of the LED indications and use of the micro switch button on top of the instrument is discussed in
section 3.7 and section 3.8 respectively.
3.2.1
Using multiple interfaces
The analog interface is always present on ML120 series instruments. An interface to any available field bus is optional.
Operation via analog interface, RS232 and an optional field bus (top connector) can be performed at the same time. When
using multiple interfaces, reading of parameters can be done simultaneously. When changing a parameter value, the last
value sent by any of the interfaces will be valid.
Control mode
A controller setpoint is accepted from either the analog or digital interface, but not both. Analog or digital operation is
selected at ordering.
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3.3
Analog operation
The following analog signals are available for each instrument through the 9-pin sub-D side connector:
· Measured value (analog output) at pin 2
· Setpoint (analog input/setpoint) at pin 3
The factory selected analog interface (0…5 Vdc; 0…10 Vdc; 0…20 mA or 4…20 mA) can be found in the model key of the
instrument (section 1.5) and in the pin description at the instrument backside label.
When operating the instrument through the analog interface it is possible to connect the instrument
simultaneously to RS232 for reading/changing parameters (e.g. settings or fluid selection).
3.3.1
Hook-up
Refer to the hook-up diagram for analog operation (document 9.16.119) or use a 9-pin sub-D loose-end cable to connect the
required signals.
Power
: +15...+24 Vdc
Analog output
: 0...5 Vdc / 0...10 Vdc
0...20 mA / 4...20 mA
Analog input
(controller)
: 0...5 Vdc / 0...10 Vdc
0...20 mA / 4...20 mA
3.4
Cable
7.03.004 (3m)
7.03.536 (5m)
7.03.537 (10m)
Basic RS232 operation
Digital RS232 (or bus) operation adds a lot of extra features to the instruments compared to analog operation, such as:
· Multi range functionality (section 3.1.1)
· Direct reading at readout/control module or host computer (section 3.4.1)
· Self-testing and diagnostics (section 5.1)
· Identification (section 3.9.3)
· Adjustable minimum and maximum alarm limits (section 3.9.4)
· (Batch) counter (section 3.9.4)
Each instrument process is controlled (internally) by specific parameters. The instrument parameter values are accessible
through the available digital interfaces to influence the instrument behavior. In this section it is explained how to operate
an instrument using RS232 communication.
Make sure in FlowDDE the correct port and baud rate are selected. Baudrate should be: 38400 Baud.
3.4.1
Hook-up
A special T-part cable (7.03.366) is required for connecting the 9pin sub-D side connector of an mini CORI-FLOW ML120 series
instrument to a COM port of a pc for RS232 communication.
Optionally use an RS232 to USB2.0 converter (9.09.122) to
connect to a USB port. Use a Plug-in Power Supply (PiPS)
(7.03.422) for powering the instrument.
Alternatively use a 9-pin sub-D loose-end cable and refer to the
hook-up diagram for RS232 operation (document 9.16.119) to
connect the required signals, typically for connection to PLC or
microcontroller devices.
If an instrument is powered through the bus connector on top
of the instrument (if present), the 9-pin sub-D side connector
can be connected to a COM port directly using the T-part cable
7.03.366 or a RS232 cable 7.03.367. The figure on the right shows
a hook-up example for DeviceNet™.
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Keep in mind that the 9-pin sub-D configuration of a Bronkhorst® instrument differs from the 9-pin sub-D
configuration of a PC COM-port. Make sure the correct cables are used for hook-up. When in doubt, always
check the hook-up diagrams associated with the instruments.
3.4.1.1 E-8000
When a mini CORI-FLOW ML120 instrument is used in
combination with an E-8000 readout/ control unit equipped
with an RS232 interface, the instrument can be powered and
operated using the 9-pin sub-D (female) connector at the rear
of the E-8000 module and a cable 7.03.016 or equivalent. With
the display interface and control buttons most digital
functions described in this document can be used. See E-8000
manual (document 9.17.076) for more information.
3.4.1.2 BRIGHT
When an mini CORI-FLOW ML120 instrument is used in
combination with a BRIGHT B1 or B2 readout/control module,
most digital functions are available by using the display
interface and control buttons. If a BRIGHT module is connected,
no other RS232 communication with the instrument can be
established. For more information see the BRIGHT manual
(document 9.17.048).
3.4.2
FlowDDE
RS232 communication can be used for operating the instrument using the Bronkhorst® FlowDDE server application.
Dynamic Data Exchange (DDE) provides the user a basic level of interprocess communication between Windows
applications. FlowDDE is a DDE server application. Together with a client application, either self-made or with a SCADAprogram from third parties, it is possible to create an easy way of data exchange between the flow meter/controller and a
Windows application. For example, a cell in Microsoft Excel could be linked to the measured value of the mini CORI-FLOW
ML120 and when the measured value changes, it will be updated automatically in the Excel spreadsheet.
The FlowDDE server offers the user a different and user-friendly interface to the instrument. FlowDDE makes use of 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.
Node-address and process number will be translated by FlowDDE to a channel number.
DDE-client applications communicate to 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.
How to setup a DDE link with FlowDDE is described in the help-file of
the FlowDDE application and in the instruction manual document
9.17.067. Programming examples are available for making applications
in: Visual Basic, LabVIEW and Microsoft Excel.
When not using FlowDDE for communication with the instrument, each
parameter value is addressed by:
· Node address of the instrument
· Process number on the instrument
· Parameter number on the instrument
Refer to section 3.9 for more for more information regarding instrument parameters.
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For more information regarding FlowDDE, see document 9.17.067 'Instruction manual FlowDDE' which can be
found on: downloads.bronkhorst.com
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3.4.3
Software
Examples of free Bronkhorst® DDE client applications: FlowDDE, FlowPlot and FlowView. Other software programs
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 Bronkhorst® internet site: downloads.bronkhorst.com
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3.4.4
Baud rate setup
mini CORI-FLOW ML120 series instruments support the following baud rates for RS232 communication. The factory selected
baud rate is indicated on the instrument back-side label. Refer to section 4.3.2 for changing the baud rate settings for the
instrument. The default baud rate for RS232 communication is 38400 Baud.
Mode:
Digital
Interface/medium:
RS232
Protocol:
FLOW-BUS
9600
16200
38400
57600
115200
230400
460800
Baud rate:
Node address:
3
Parity:
None
RS232 communication options
Changing RS232 settings of the 9-pin sub-D side connector interface refer to section 4.3.2 for changing the
baud rate settings for the instrument.
Make sure that the instrument’s baud rate corresponds with the baud rate of the application the instrument
is communicating with, otherwise no communication can be established.
For RS232 communication, the maximum cable length is 10 m for baud rates up to 38400 Baud. For higher
baud rates, use cable lengths of maximum 3 m.
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3.4.5
For more information regarding communication through an RS232 interface, see document 9.17.027: RS232
interface with FLOW-BUS for digital instruments. http://www.bronkhorst.com/files/downloads/
manuals_english/ 917027manual_rs232_interface.pdf
Basic RS485 (FLOW-BUS/Modbus) operation
This section is limited to RS485 FLOW-BUS or Modbus communication. For communication through other field bus
interfaces see section 3.6.
FLOW-BUS or Modbus communication is available only if either the FLOW-BUS or Modbus RJ-45 connector on top of the
instrument is present, or if the 9-pin sub-D side connector is set for FLOW-BUS or Modbus communication.
3.4.5.1 FLOW-BUS
FLOW-BUS is a Bronkhorst® designed field bus, based on RS485 technology, for digital communication between devices,
offering the possibility of host-control by a pc.
Characteristics:
•
Baud rates of 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)
•
PC communication via (local host) FLOW-BUS – RS232 interface
•
Connection of max. 120 instruments on a single bus
•
Maximum bus length: 600 m
See document 9.17.024 for more information about FLOW-BUS communication.
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More detailed information about Modbus can be found at www.modbus.org or any website of the (local) Modbus
organization of your country (when available).
3.4.5.2 Modbus
Modbus is a 3-wire, RS485-based field bus communication system for parameter value exchange. In this system each
instrument/device is equipped with a micro-controller for its own dedicated task but also for exchanging parameter value
information with other devices connected to the same Modbus system. In a Modbus system Bronkhorst® instruments
always serve as Modbus slaves. There is no mutual communication between Modbus slaves, only between master and slave.
The master device is for example a pc.
Characteristics:
•
Several selectable baud rates between 9600 and 256000 Baud (default: 19200 Baud)
•
+15…24 Vdc supply voltage
•
connection of max. 247 instruments on a single bus
•
supports RTU and ASCII protocols
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See document 9.17.035 for more information about Modbus communication.
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3.4.6
Hook-up
The illustrations below show examples of a number of mini CORI-FLOW ML120 Series instruments in an RS485 bus-system.
Note that many other bus configurations are possible, contact your local sales representative for more information. Please
check the total power consumption of your instruments and do not exceed the maximum power of the power supply.
FLOW-BUS setup (example)
In the example on the next page an E-8000 power supply/readout control unit with FLOW-BUS is connected to two mini
CORI-FLOW ML120 Series instruments via the RJ-45 top-connector FLOW-BUS interface. In this example one instrument
serves as 'local host' for communicating with a pc 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.
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Power the instruments in a FLOW-BUS local-host system by hooking-up the power supply directly on the
FLOW-BUS line and not by powering a set of instruments through the 9-pin sub-D connector on one of the
digital instruments.
Modbus setup (example)
In the example below the Modbus power supply is provided by an E-8000. The M instruments are connected to the bus via
RS485 cables with RJ-45 connector and a Multiport connector. The RS485 - USB2.0 adapter can be used to connect the system
to a Modbus master device.
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3.4.7
For possible power supply and communication options, refer to document 9.17.076 'Instruction manual E8000 PS /readout and control module': http://www.bronkhorst.com/files/downloads/
manuals_english/917076--manual_e-8000.pdf
Software
When using a pc to communicate with an 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.
Note: an instrument with 9-pin sub-D side connector set for RS485 FLOW-BUS or Modbus communication will
not respond when connecting to an RS232 configuration. If the instrument is not set for RS232
communication, use the micro switch on top of the instrument to overrule the custom settings and switch to
RS232 communication settings: press and hold the micro switch at power-up and wait (12…16 sec) until both
green and red LEDs flash (0.2 sec on, 0.2 sec off). Release the switch to activate the ‘Configuration Mode’. In
the ‘Configuration Mode’ the bus type and baud rate for the 9-pin sub-D side connector are set to RS232
FLOW-BUS (Propar) at 38400 Baud. The ‘Configuration Mode’ remains active after power down. Use the same
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procedure to deactivate the ‘Configuration Mode’.
3.4.8
Baud rate, node address and parity setup
mini CORI-FLOW ML120 Series instruments are configured from the 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 presented in bold.
Mode:
Digital
Interface/medium:
RS485
Protocol:
FLOW-BUS
Modbus RTU
Modbus ASCII
Baud rate:
187500
400000
9600
19200
38400
56000
57600
115200
128000
256000
9600
19200
38400
56000
57600
115200
128000
256000
Node address:
3…125
1…247
1…247
None
None; Even; Odd
None; Even; Odd
Parity:
RS485 FLOW-BUS/Modbus communication options
Changing RS485 settings of the RJ-45 top connector interface
In case the FLOW-BUS or Modbus RJ-45 field bus connector is used for bus
communication, the node address can be easily set by using the rotary switches on
the side of the instrument. Use the ‘MSD’ (Most Significant Digit) to set the ‘tens’ of
the bus-address and the ‘LSD’ (least Significant Digit) to set the ‘unit’ of the busaddress (the example on the right reads ‘63’). Set the rotary switches to '00' for
automatic installation. Refer to the corresponding field bus manual, document
9.17.024 (FLOW-BUS) or document 9.17.035 (Modbus) for more details.
For changing the baud rate or parity settings use the RS232 interface to change the
corresponding parameters (see section 4.3.2).
Changing RS485 settings of the 9-pin sub-D side connector interface
In case the 9-pin sub-D side connector is set for RS485 communication, the baud rate or node address can be changed by
using the micro switch or by changing the settings in the ‘Configuration Mode’. Refer to section 3.8 for changing node
address and baud rate with the micro switch. Other communication parameters can be changed only in the ‘Configuration
Mode’. Activate the ‘Configuration Mode’ by pressing the micro switch at start-up according the description in section 3.5.2
above. In ‘Configuration Mode’ the bus type and baud rate are set to RS232 FLOW-BUS (Propar) at 38400 Baud. Change the
appropriate parameters as described in section 4.3.2. When finished, deactivate the ‘Configuration Mode’ using the same
procedure. Now the instrument is ready to use in the desired configuration with the adjusted baud rate, node address or
parity.
Any changes made to the instrument communication settings will not be restored after a factory reset. See section 5.2 for
more details.
3.5
Other field bus configurations
The following field buses are optionally available for the mini CORI-FLOW ML120 instruments. For all mentioned field bus
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.
PROFIBUS DP
PROFIBUS DP is a 2-wire, RS485-based industrial data communication standard (field bus) which allows automation
components (like sensors, actuators and controllers) to exchange information. For more information regarding the
PROFIBUS DP interface refer to document 9.17.025.
DeviceNet™
The DeviceNet™ interface offers direct connection to a DeviceNet™ network according to the Mass Flow Controller Profile
specified by the ODVA. The Bronkhorst® DeviceNet™ instrument is a Group 2 Only Server device which messages comply
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with the Controlled Area Network (CAN) 2.0A standard and with the DeviceNet™ protocol. See document 9.17.026 for more
information about the DeviceNet™ interface.
EtherCAT®
Ethernet for Control Automation Technology (EtherCAT®) is an open high performance Ethernet-based field bus system. The
EtherCAT® interface is described in more detail in document 9.17.063.
PROFINET
The PROFINET interface is 100% Ethernet-compatible and is used for data exchange between IO controllers (PLC, etc.) and IO
devices (slaves, field devices). PROFINET uses the proven communication model and application view of PROFIBUS DP. Refer
to document 9.17.095 for more information.
3.5.1
Hook-up
See the following documents for hook-up diagrams and instructions for setting up bus communication with the following
communication interfaces:
· PROFIBUS DP interface: hook-up diagram 9.16.121 and manual 9.17.025
· DeviceNetTM interface: hook-up diagram 9.16.122 and manual 9.17.026
· EtherCAT® interface: hook-up diagram 9.16.124 and manual 9.17.063
· PROFINET interface: hook-up diagram 9.16.147 and manual 9.17.095
3.5.2
Baud rate, node address and parity setup
In the table below for the supported configurations for PROFIBUS DP, DeviceNet™, EtherCAT® and PROFINET are shown. The
default selections are presented in bold.
Mode:
Digital
Connector:
9-pin D-sub (female)
5-pin M12 (male)
2x RJ45 (in/out)
2x RJ45
Interface/medium:
RS485
RS485
Ethernet
Ethernet
Protocol:
PROFIBUS DP
DeviceNetTM
EtherCAT®
PROFINET
Baud rate:
Node address:
Parity:
Even
Autodetect
(9600)
(19200)
(45450)
(93750)
(187500)
(500000)
(1500000)
(3000000)
(6000000)
(12000000)
125000
250000
500000
100000000
100000000
0…126
0...63
0 (n/a)
0 (n/a)
None
None
None
PROFIBUS DP, DeviceNetTM, EtherCAT® and PROFINET communication options
Changing PROFIBUS DP node address
The node address can be easily set by using the rotary switches on the side of the instrument. Use the ‘MSD’ (Most
Significant Digit) to set the ‘tens’ of the bus-address and the ‘LSD’ (least Significant Digit) to set the ‘unit’ of the bus-address.
Changing DeviceNet™ node address and data rate
The node address and data rate can be easily set by using the rotary switches on the side of the instrument. Use the
‘MSD’ (Most Significant Digit) to set the ‘tens’ of the bus-address and the ‘LSD’ (least Significant Digit) to set the ‘unit’ of the
bus-address. Set the 'MSD' rotary switch to 'P' to select programmable bus-address. For the data rate setting select '1' for
125000 Baud, '2' for 250000 Baud, '5' for 500000 Baud and 'P' for programmable data rate.
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.
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3.6
LED indications
The following LED indicators are present on top of the instrument:
·
·
·
·
·
‘Mode’
‘Error’
‘NET’
‘MOD’
‘Status’
LED: green
LED: red
LED: green/red
LED: green/red
LED: green/red
•
•/
••
• //•
••
used for operation mode indication
used for error/warning messages
used for Network status ( DeviceNet™ only )
used for Module status ( DeviceNet™ only )
used for status indication ( EtherCAT® and PROFINET only
)
For EtherCAT® and PROFINET the following LED indicators are integrated in the RJ-45 connectors:
n Amber LED: Ethernet Speed indicator
n Green LED: Ethernet Link/Activity indicator
For an example of the different fieldbus configuration see section 3.2, 'Communication interfaces'.
The tables below list the possible indications by the LEDs on top of the instrument:
•LEDGreen 'Mode'
• Off
Time
Indication
Continuous
Power-off or program not running
On
Continuous
Normal Operation Mode
• Short flash
0.1 sec on,
2 sec off
Valve Safe State Mode There is no bus communication (PROFIBUS DP, DeviceNetTM,
EtherCAT® and PROFINET only). Valves are in safe state. This LED indication is also
active when the instrument is in ‘Initialization Mode' (Init Reset = '73')
• Normal flash
• Long flash
0.2 sec on,
0.2 sec off
Special Function Mode The instrument is busy performing a special function, e.g.
auto-zero or self-test
2 sec on,
0.1 sec off
Configuration Mode The instrument is in configuration mode. In the configuration
mode the baud rate and bus type for the 9-pin sub-D side connector are set to
38k4 and RS232 FLOW-BUS (Propar)
• red 'Error' LED
• Off
• On
• Short flash
Time
Indication
Continuous
No error
Continuous
Critical error message A serious error occurred in the instrument. The instrument
needs servicing before further use.
0.1 sec on,
2 sec off
Field bus specific warning message
FLOW-BUS:
Node occupied: re-install instrument
PROFIBUS DP: No data exchange between master and slave (automatic
recovery)
Modbus:
Data is received or transmitted
DeviceNetTM:
Not used
EtherCAT®:
Instrument is not in OP mode (see EtherCAT® manual
document 9.17.063 for more details)
PROFINET:
No application relation established
• Normal flash
0.2 sec on,
0.2 sec off
Incorrect fluidset configuration and/or field bus specific warning message
The fluidset configuration of the instrument is incorrect (in this case the valves are
in safe state, see section 4.2.3) and/or:
FLOW-BUS:
Waiting for communication, check communication settings of
all FLOW-BUS devices in the field bus setup. Usually the ‘last
node address’ setting of one of the devices is incorrect.
PROFIBUS DP: Not used
Modbus:
Not used
DeviceNetTM:
Not used
EtherCAT®:
Not used
PROFINET:
Not used
• Long flash
2 sec on,
Field bus specific warning message
Green LED indications
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• red 'Error' LED
Time
Indication
0.1 sec off
FLOW-BUS:
PROFIBUS DP:
Modbus:
DeviceNetTM:
EtherCAT®:
PROFINET:
Not used
A requested parameter is not available (see PROFIBUS DP
manual document 9.17.025 for more details)
Not used
Not used
Error detected in EtherCAT® configuration (see EtherCAT®
manual document 9.17.063 for more details)
Configuration error. For example a requested parameter is not
available (see PROFINET manual document 9.17.095 for more
details).
Red LED indications
Wink mode:
• green ‘Mode’ LED / • red ‘Error’ LED turn by turn
Wink
• /• Slow wink
/• Normal
•wink
• /• Fast wink
Time
Indication
1 sec on,
1 sec off
Alarm indication Minimum alarm, limit/maximum alarm, power-up alarm, limit
reached or batch reached.
0.2 sec on,
0.2 sec off
Wink mode By sending a command via ‘Wink’ parameter the instrument can wink
with the LEDs to indicate its position in a (large) system.
0.1 sec on,
0.1 sec off
Switch released Selected action started.
LED wink indications
DeviceNetTM LED indications
Specific LED indications are applicable to instruments with DeviceNetTM interface. Note: the ‘NET’ and ‘MOD’ LEDs are bicolored LEDs (green/red). Refer to the DeviceNetTM manual, document 9.17.026, for more information.
EtherCAT® LED indications
Specific LED indications are applicable to instruments with EtherCAT interface. Refer to the EtherCAT manual, document
9.17.063, for more information.
PROFINET LED indications
Specific LED indications are applicable to instruments with PROFINET interface. Refer to the PROFINET manual, document
9.17.095, for more information.
3.7
Micro switch functions
By means of manual operation of the micro push-button switch some important actions for the instrument can be selected
or started. These options are available in both analog and digital operation mode. These functions are:
· Reset alarm
· Reset instrument (firmware program reset)
· Auto-zero
· Restore factory settings (in case of accidentally changing of the settings)
· Activate 'Configuration Mode' (for changing communication settings via RS232)
Using digital RS485 operation via the 9-pin sub-D side connector it is also possible to read/set:
· Bus-address (node-address) (only required for RS485)
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.
When the micro switch is pressed, both LEDs will start indicating different patterns in a loop. The switch has to be pressed
down until the two LEDs are indicating the right pattern. When the switch is released, the selected action is started. The
tables below describe the micro switch functions that can be started in normal operation mode and during power-up:
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LEDs
• green ‘Mode’ LED •
• Off
•
Time
red ‘Error’ LED pushed
0…1 sec.
Off
Indication
No action
Pressing a switch briefly by accident will not start any unwanted
reaction of the instrument.
• Off
• Off
1…4 sec.
In case of min/max alarm or counter batch reached: Reset alarm
(only if reset by micro switch has been enabled).
For FLOW-BUS only: if the node address is occupied, this function
will install a free node-address on FLOW-BUS.
• Off
• On (red)
4…8 sec.
Reset instrument. Instrument program will be restarted and all
warning and error messages will be cleared. During start-up the
instrument will perform a (new) self-test.
• On (green)
• Off
8…12
sec.
Auto-zero
Instrument will be re-adjusted for measurement of zero-flow, see
section 2.9.
• On (green)
• On (red)
12…16
sec.
LED indications using micro switch at
LEDs
Prepare instrument for FLASH mode for firmware update.
Instrument shuts down and both LEDs turn off. At next power-up
the instrument will be active again.
normal operation mode
of an instrument
Time
red ‘Error’ LED pushed
• green ‘Mode’ LED •
• Off
• Off
• Off
flash
•0.2Normal
sec on,
0…4 sec.
No action
Pressing a switch briefly by accident will not start any unwanted
reaction of the instrument.
4…8 sec.
Restore factory settings
All parameter settings (except field bus/communication settings)
will be restored to the original factory settings.
8…12
sec.
For FLOW-BUS only: install a free node-address on FLOW-BUS.
0.2 sec off
flash
•0.2Normal
• On (red)
sec on, 0.2 sec off
flash
•0.2Normal
• Normal flash
sec on, 0.2 sec off 0.2 sec on,
0.2 sec off
LED indications using micro switch at
Indication
12…16
sec.
Activate ‘Configuration Mode’
The baud rate and bus type for the 9-pin sub-D side connector are
set to 38k4 and RS232 FLOW-BUS (Propar). The ‘Configuration
Mode’ is recognized by the green LED blinking 2 sec on, 0.1 sec
off. The ‘Configuration Mode’ is deactivated only after applying
this micro switch action again.
power-up situation of an instrument
3.8
Basic parameters and properties
3.8.1
Introduction
Most instrument parameters can only be accessed with digital communication. For each communication protocol the
instrument parameters are accessed differently. When using Bronkhorst software programs FlowView or FlowPlot, easy
access is provided to the mostly used parameters by menu interfaces. When using other communication methods the
addressing method for the supported communication protocol is presented for a number of basic parameters in a table as
shown below:
Type
Access
Range
FlowDDE
FLOW-BUS
Modbus
[type]
RW B
[x]…[y]
[DDE par]
[Pro]/[Par]
[address]/[index]
Type
Unsigned char
Unsigned int
Unsigned long
Float
Unsigned char [x]
26
1 byte unsigned integer (0...255)
2 byte unsigned integer, MSB first (0...65535)
4 byte unsigned integer, MSB first (0...4294967295)
4 byte floating point, IEEE 32-bit single precision, MSB first
x byte array (text string)
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Access
R
RW
RW B
The parameter is read-only
The parameter can be read and written
The parameter is protected and can only be written when the ‘Init Reset’ parameter is set to 64.
See section 4.2.2 for more details.
Range
Some parameters only accept values within a certain range:
[x]
Minimum value of the range
[y]
Maximum value of the range
FlowDDE
Parameter number within FlowDDE. Refer to section 3.4.2 for more information about FlowDDE.
Within this manual, a reference to a parameter name is denoted by writing the DDE parameter number in front of the
parameter name, e.g ‘8Measured Value’. See section 3.9.6 for a parameter list, sorted by DDE parameter number.
FLOW-BUS
Within the FLOW-BUS protocol (Propar when using RS232) parameters are divided into a ‘Process’ and
a ‘Parameter’ number. To address parameters using the FLOW-BUS/Propar protocol write both numbers:
[Pro]
Process number
[Par]
Parameter number
i
www
See document 9.17.027: ‘RS232 interface with FLOW-BUS for digital instruments’ for detailed information. http://
www.bronkhorst.com/files/downloads/manuals_english/917027manual_rs232_interface.pdf
Modbus
Parameters can be read or written via the Modbus protocol by specifying either the PDU Address or the register number. The
PDU Address is a hexadecimal number (identifiable by the ‘0x’ prefix), which corresponds to the decimal register number
minus one, e.g. PDU Address 0x0000 equals register number 1, PDU Address 0x000A equals register number 11 etc.):
[address] Hexadecimal PDU Address
[index]
Decimal register number
For the Modbus protocol every two bytes are addressed separately.
PROFIBUS DP, DeviceNetTM, EtherCAT® or PROFINET
Refer to the specific field bus manual for reading/changing parameters via field bus communication.
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3.8.2
Basic identification parameters
User Tag
Type
Access
Range
FlowDDE
FLOW-BUS
Modbus
Unsigned char[16]
RW
-
115
113/6
0xF130…0xF136/ 61745…61751
The ‘115User Tag’ parameter allows the user to give the instrument a custom tag name, with a maximum of 16 characters.
Customer Model
Type
Access
Range
FlowDDE
FLOW-BUS
Modbus
Unsigned char[16]
RW B
-
93
113/4
0xF120…0xF127/ 61729…61736
This parameter is used to add extra information to the model number information, such as a customer-specific model
number.
Serial Number
Type
Access
Range
FlowDDE
FLOW-BUS
Modbus
Unsigned char[20]
RB
-
92
113/3
0xF118…0xF11F/ 61721…61728
This parameter consists of a max. 20-byte string with instrument serial number for identification, e.g.: ‘M1111111A’.
BHT Model Number
Type
Access
Range
FlowDDE
FLOW-BUS
Modbus
Unsigned char[*]
RW B
-
91
113/2
0xF111…0xF117/ 61713…61719
This parameter shows the Bronkhorst instrument model type information.
* For MBC-2 type length = 23 bytes, for MBC3 type the length = 27 bytes.
3.8.3
Basic alarm and counter settings
The alarm and counter settings are most easily accessible via FlowPlot or FlowView software or any of the Bronkhorst
readout/control units (BRIGHT, E-8000). For more information about the alarm parameters see section 4.2.4, for the
counter parameters see section 4.2.5.
3.8.4
Zeroing (using digital operation)
The auto-zero function is most easily accessible via FlowPlot software. Select 'Instrument Settings' and use the 'Auto zero'
button in the 'Basic' tab.
To start the auto-zero function by digital operation use the following procedure:
1.
2.
3.
4.
•
Set parameter ‘12Control Mode’ to value 9 (Calibration Mode); the green LED will flash normally (0.2 sec on, 0.2 sec off)
Set parameter ‘58Calibration Mode’ to value 9 (Auto-zero)
The auto-zero function has started
Check parameter ‘58Calibration Mode’:
o value 0 = idle (auto-zeroing succeeded), ‘12Control Mode’ is set to previous value.
o value 9 = auto-zero active
o value 255 = error: restart auto-zero (step 2), ‘12Control Mode’ is set to previous value.
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3.8.5
Instrument parameter list
The table below lists the relevant parameters for the mini CORI-FLOW ML120, sorted by FlowDDE parameter number.
FlowDDE
parameter
Parameter name
Purpose
Section
1
Wink
Special instrument parameter
Section 4.2.2
7
Init Reset
Special instrument parameter
Section 4.2.2
8
Measured Value (Measure)
Measurement/control
Section 3.8.6
9
Setpoint
Measurement/control
Section 3.8.6
11
Analog Input
Measurement/control
Section 4.2.1
12
Control Mode
Special instrument parameter
Section 4.2.2
21
Capacity
Fluidset property
Section 4.2.3
22
Sensor Type
Special instrument parameter
Section 4.2.1
24
Fluid Number
Fluidset property
Section 4.2.3
25
Fluid Name
Fluidset property
Section 4.2.3
28
Alarm Info
Alarm settings
Section 4.2.4
55
Valve Output
Measurement/control
Section 4.2.1
58
Calibration Mode
Special instrument parameter
Section 4.2.2
86
IOStatus
Special instrument parameter
Section 4.4.2
90
Device Type
Diagnostics
Section 5.1
91
BHT Model Number
Identification
Section 3.8.2
92
Serial Number
Identification
Section 3.8.2
93
Customer Model
Identification
Section 3.8.2
105
Firmware Version
Diagnostics
Section 5.1
114
Reset
Special instrument parameter
Section 4.2.2
115
User Tag
Identification
Section 3.8.2
116
Alarm Maximum Limit
Alarm settings
Section 4.2.4
117
Alarm Minimum Limit
Alarm settings
Section 4.2.4
118
Alarm Mode
Alarm settings
Section 4.2.4
120
Alarm Setpoint Mode
Alarm settings
Section 4.2.4
121
Alarm New Setpoint
Alarm settings
Section 4.2.4
122
Counter Value
Counter settings
Section 4.2.5
124
Counter Limit
Counter settings
Section 4.2.5
126
Counter Setpoint Mode
Counter settings
Section 4.2.5
127
Counter New Setpoint
Counter settings
Section 4.2.5
128
Counter Unit
Counter settings
Section 4.2.5
129
Capacity Unit
Fluidset property
Section 4.2.3
130
Counter Mode
Counter settings
Section 4.2.5
139
Slave Factor
FLOW-BUS master/slave control
Section 4.3.1
142
Temperature
Fluidset property
Section 4.2.3
156
Reset Alarm Enable
Alarm settings
Section 4.2.4
157
Reset Counter Enable
Counter settings
Section 4.2.5
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FlowDDE
parameter
Parameter name
Purpose
Section
158
Master Node
FLOW-BUS master/slave control
Section 4.3.1
170
Density
Fluidset property
Section 4.2.3
175
Identification Number
Diagnostics
Section 5.1
178
Pressure Inlet
Fluidset property
Section 4.2.3
181
Fluid Temperature
Fluidset property
Section 4.2.3
182
Alarm Delay Time
Alarm settings
Section 4.2.4
201
Fieldbus 1 baudrate
Fieldbus settings
Section 4.3.2
205
Fmeasure
Measurement/control
Section 4.2.1
206
Fsetpoint
Measurement/control
Section 4.2.1
250
Heat Capacity
Fluidset property
Section 4.2.3
251
Thermal Conductivity
Fluidset property
Section 4.2.3
252
Viscosity
Fluidset property
Section 4.2.3
254
Controller Speed (Kspeed)
Fluidset property
Section 4.2.3
270
Actual Density
Measurement/control
Section 4.2.1
288
IO Switch Status
Special instrument parameter
Section 4.4.1
309
Fieldbus 2 address
Fieldbus settings
Section 4.3.2
310
Fieldbus 2 baudrate
Fieldbus settings
Section 4.3.2
335
Fieldbus 1 parity
Fieldbus settings
Section 4.3.2
336
Fieldbus 2 parity
Fieldbus settings
Section 4.3.2
346
Mix Fraction Type
Fluidset property
Section 4.2.3
347
Mix Fraction Temperature
Fluidset property
Section 4.2.3
348
Mix Fraction Pressure
Fluidset property
Section 4.2.3
349
Mix Fraction Index
Fluidset property
Section 4.2.3
350
Mix Fraction
Fluidset property
Section 4.2.3
Fluidset property
Section 4.2.3
351
Mix Component Name
DDE parameter list
3.8.6
Basic measurement and control parameters
The list below provides the most basic parameters for digital communication with the instrument.
The parameters below are most easily accessible via FlowPlot or FlowView software or any of the Bronkhorst® readout/
control units (BRIGHT, E-8000).
Measured Value (Measure)
Type
Access
Range
FlowDDE
FLOW-BUS
Modbus
Unsigned int
R
0…41942
(65535*)
8
1/0
0x0020/33
The ‘8Measured Value’ indicates the amount of mass flow metered by the instrument. The signal of 0…100% is presented in
a range of 0…32000. The maximum measured value output is 131.07%, which is 41942. A floating point variable of the
measured value, ‘205Fmeasure’, is also available in the capacity and capacity unit for which the instrument has been set, see
section 4.2.1.
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*In case the instrument is prepared for bi-directional measurement, the negative signals with an output range of
-73.73...-0.003% are presented in a range of 41943…65535 (so value 65535 represents -0.003%), whereas the positive
signals 0…131.07% are still presented in the range 0…41942. (In FlowDDE the numbers are converted to negative values
automatically).
Setpoint
Type
Access
Range
FlowDDE
FLOW-BUS
Modbus
Unsigned int
RW
0…32000
9
1/1
0x0021/34
The ‘9Setpoint’ is used to set the required mass flow rate for the controller. The signals have the same range as the
‘8Measured Value’, only the setpoint is limited between 0 and 100% (0…32000). A floating point variable of the setpoint,
‘206Fsetpoint’, is also available in the capacity and capacity unit for which the instrument has been set, see section 4.2.1.
Actual Density
Type
Access
Range
FlowDDE
FLOW-BUS
Float
R
-3.40282E
+38...
3.40282+38
270
116/15
Modbus
Thi s pa ra meter s hows the Actua l Dens i ty mea s ured by the (mi ni ) CORI-FLOW.
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4
Advanced operation
4.1
Advanced parameters and properties
4.1.1
Advanced measurement and control parameters
Measured Value (Fmeasure)
Type
Access
Range
FlowDDE
FLOW-BUS
Modbus
Float
R
-3.4E+38…
3.4E+38
205
33/0
0xA100…0xA101/ 41217…41218
Floating point variable of the ‘8Measured Value’. The ‘205Fmeasure’ parameter shows the measured value in the capacity and
capacity unit for which the instrument has been set. The ‘205Fmeasure’ parameter is dependent of ‘129Capacity Unit’ and
‘22Sensor Type’.
Setpoint (Fsetpoint)
Type
Access
Range
FlowDDE
FLOW-BUS
Modbus
Float
RW
0…3.4E+38
206
33/1
0xA119…0xA11A/ 41241…41242
Floating point variable of the ‘9Setpoint’. The ‘206Fsetpoint’ parameter shows the setpoint in the capacity and capacity unit
for which the instrument has been set. The ‘206Fsetpoint’ parameter is dependent of ‘129Capacity Unit’ and ‘22Sensor Type’.
Valve Output
Type
Access
Range
FlowDDE
FLOW-BUS
Modbus
Unsigned long
RW
0…
16777215
55
114/1
0x001F/32
This parameter is the digital steering signal for driving the control valve, where 0…16777215 corresponds with 0…100%.
Analog Input
Type
Access
Range
FlowDDE
FLOW-BUS
Modbus
Unsigned int
R
0…65535
11
1/3
0x0023/36
Depending on the analog mode, 0…5 Vdc, 0…10 Vdc, 0…20 mA or 4…20 mA is converted to a number in the range 0…
32000. The digitized ‘11Analog Input’ is in the same range as ‘8Measured Value’ (0…32000 corresponds to 0…100%). This
parameter can be used as setpoint or slave factor when the instrument is used as ‘analog slave’ or ‘FLOW-BUS analog slave’,
see ‘12Control Mode’.
Sensor Type
Type
Access
Range
FlowDDE
FLOW-BUS
Unsigned int
RW
0…255
22
1/14
Modbus
Uns i gned cha r us ed to s el ect proper s et of uni ts for certa i n s ens or, together wi th Counter uni t.
Defa ul t s etti ng i s 3.
Value
0
1
2
3
4
128
129
130
131
132
32
Description
Pressure (no counting allowed
Liquid volume
Liquid/gas mass
Gas volume
Other sensor type (no counting allowed)
Pressure (no counting allowed
Liquid volume
Liquid/gas mass
Gas volume
Other sensor type (no counting allowed)
mini CORI-FLOW ML120
Controller/Sensor
Controller
Sensor
9.17.097
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IO Status
Type
Unsigned
Char
Acces
RW
Range
0...255
Bit
0
Decimal value
1
1
2
2
4
3
4
8
16
5
32
6
7
64
128
FlowDDE
9
Explanation
True=read\special purpose
jumper
Not used
True=read 'analog mode
jumper'
True=read 'micro switch'
Special purpose jumper off/
on
Internal initialization jumper
off/on
Analog mode jumper off/on
Micro switch off/on
FLOW-BUS
114/11
Read/Write
RW
Default
1
RW
1
1
RW
R(W)
1
(0)
R(W)
(0)
R(W)
R
(0)
Modbus
For bits 4,5,6 the jumper can be a real jumper on the pc board or a virtual jumper (MBC3 type).
In case of a real jumper the bits 4,5,6 are read from the pc board.
In case of a virtual jumper the bits 4,5,6 are set by firmware (MBC3 type).
4.1.2
Special instrument parameters
All parameters described in this section have influence on the behavior of the mini CORI-FLOW ML120. Please be aware
that wrong settings can disrupt the output. To avoid unintentional changes, some parameters are locked (shown by the B
symbol). To unlock parameters set parameter ‘7Init Reset’ to ‘Unlocked’.
Init Reset
Type
Access
Range
FlowDDE
FLOW-BUS
Modbus
Unsigned char
RW
82/64
7
0/10
0x000A/11
The ‘7Init Reset’ parameter is used to unlock secured parameters for writing (see the B symbol). This parameter can be set to
the following values:
· Value 82: Locked mode, secured parameters are read-only
· Value 64: Unlocked mode, secured parameters are writeable and readable
This parameter is always set to ‘Locked’ (value 82) at power-up.
Reset
Type
Access
Range
FlowDDE
FLOW-BUS
Modbus
Unsigned char
R
0…5
114
115/8
0x0E68/3689
This parameter is used to reset program, counter or alarms.
· Value 0: no reset
· Value 1: Reset counter
· Value 2: Reset alarm
· Value 3: Reset counter
· Value 4: Reset counter and counter off
· Value 5: Reset firmware program (soft reset)
Make sure the ‘114Reset’ value is accepted by sending a 0 first. The ‘114Reset’ parameter may be disabled by the ‘156Reset
Alarm Enable’ or ‘157Reset Counter Enable’ parameters.
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Wink
Type
Access
Range
FlowDDE
FLOW-BUS
Modbus
Unsigned char [27]
W
0…9
1
0/0
0x0000/1
Any text string value between '1' and '9' lets the instrument wink (normal wink) (red and green turn by turn) for that number
of seconds for identifying its position. Default value = '0'.
Control Mode
Type
Access
Range
FlowDDE
FLOW-BUS
Modbus
Unsigned int
RW
0…255
12
1/4
0x0024/37
The ‘12Control Mode’ is used to select different controlling modes of the instrument and determines from which sources
controller setpoints are accepted. The following control modes are available:
Mode
Instrument action
Setpoint source
0
Value
BUS/RS232
Normal operation, controlling
Bus or RS232
1
Analog Input
Normal operation, controlling
Analog input
2
FLOW-BUS Slave
Controlling as slave of other
instrument on bus
‘FLOW-BUS master output’
x ‘139Slave Factor’ / 100%
3
Valve Close
Close valve
4
Controller Idle
Stand-by on bus/RS232, controlling is
stopped; Valve Output freezes in
current position
7
Setpoint 100%
Controlling at setpoint 100%
8
Valve Fully
Open
Valve fully opened
9
Calibration
Mode
Calibration mode enabled
(factory only)
10
Analog Slave
Controlling as slave of other
instrument on analog input
‘11Analog Input’ x ‘139Slave
Factor’ /100%
12
Setpoint 0%
Controlling at setpoint 0%
Fixed 0%
13
FLOW-BUS
Analog Slave
Controlling as slave of other
instrument on bus, slave factor is set
with signal on analog input
‘FLOW-BUS master output’
x ‘11Analog Input’ x ‘139Slave
Factor’ / 100%
18
RS232
Normal operation, controlling
RS232
20
Valve Steering
Setpoint is redirected to ‘55Valve
Output’ with controller idle
21
Analog Valve
Steering
Analog input is redirected to ‘55Valve
Output’ with the controller idle
22
Valve Safe State
valve is in safe (unpowered) state
(closed for N.C. valves and fully
opened for N.O. valves)
Slave factor
‘139Slave Factor’
Fixed 100%
‘139Slave Factor’
‘11Analog
Input’
Instrument control modes
After power-up the ‘12Control Mode’ will be set to ‘Analog input’ or ‘BUS/RS232’, depending on the customer’s default setting
for analog or digital operation. If however the ‘12Control Mode’ is set to a value other than 0, 1, 9 or 18 the actual control
mode setting is maintained after power-up.
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Calibration Mode
Type
Acces
Unsigned RW
Char
Value
0
9
255
Range
0...255
FlowDDE
9
Mode
IDLE
AUTO_ZERO
ERROR
FLOW-BUS
115/1
Modbus
0x0E61/3682
Instrument Action
Idle
Auto-zeroing
Idle
Procedure:
Step 1: Set Control Mode to CALIBRATION_MODE (9)
Step 2: Set Calibration Mode to AUTO_ZERO(9)
Step 3: Check Calibration Mode, IDLE Auto-zeroing succeeded AUTO_ZERO Auto-zeroing active ERROR Auto-zeroing failed
For information about master/slave controller operation through the FLOW-BUS interface, see section 4.3.1.
See section 4.4.2 for changing the default control mode using the ‘86IOStatus’ parameter.
4.1.3
Advanced fluidset, range and operating conditions parameters
Fluid Number
Type
Access
Range
FlowDDE
FLOW-BUS
Modbus
Unsigned char
RW
0…7
24
1/16
0x0030/49
With the ‘24Fluid Number’ parameter any of the maximum 8 available fluid sets can be selected. Each fluid set has its specific
(configurable) properties, such as ‘25Fluid Name’, ‘21Capacity’, etc. Default value = 0 (fluid 1).
The '24Fluid Number' parameter is also accessible via FlowPlot or FlowView software or any of the Bronkhorst® readout/
control units (BRIGHT, E-8000).
Fluid Name
Type
Access
Range
FlowDDE
FLOW-BUS
Modbus
Unsigned char[10]
RW B
-
25
1/17
0x8188…0x818C/33161…33165
This parameter consists of the fluid name for the selected ‘24Fluid Number’. This parameter may contain three value types:
· Gas name, e.g. 'N2', 'He', 'C3H6 #2'.
· CAS number, e.g. '7727-37-9', '7440-59-7', '115-07-1'
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Capacity
Type
Access
Range
FlowDDE
FLOW-BUS
Modbus
Float
RW B
1E-10...1E+10
21
1/13
0x8168...0x8169/33129...33130
This parameter sets the maximum readout/control value (100%) for the active ‘24Fluid Number’ in readout units
corresponding to the '129Capacity Unit' parameter. The '21Capacity' is scaled when '178Pressure Inlet', '181Fluid Temperature' or
'25Fluid Name' (or any of the mixture parameter) are changed for the active fluidset.
Capacity Unit
Type
Access
Range
FlowDDE
FLOW-BUS
Modbus
Unsigned char[7]
RWB
See below
129
1/31
0x81F8...0x81FB/33273...33276
For mini CORI-FLOW ML120 the following units can be set:
Mass flow
Normal volume flow
(1.01325 bar(a), 0 °C)
Standard volume flow
(1.01325 bar(a), 20 °C)
Actual volume flow
(246Capacity Unit Pressure,
245Capacity Unit Type
Temperature)
ug/h, ug/min, ug/s,
mg/h, mg/min, mg/s,
g/h, g/min, g/s,
kg/h, kg/min, kg/s
uln/h, uln/min, uln/s,
mln/h, mln/min, mln/s,
ln/h, ln/min, ln/s,
ccn/h, ccn/min, ccn/s,
mm3n/h, mm3n/m, mm3n/s,
cm3n/h, cm3n/m, cm3n/s,
m3n/h, m3n/min, m3n/s,
scfh, scfm, scfs,
sccm, slm
uls/h, uls/min, uls/s,
mls/h, mls/min, mls/s,
ls/h, ls/min, ls/s,
ccs/h, ccs/min, ccs/s,
mm3s/h, mm3s/m, mm3s/s,
cm3s/h, cm3s/m, cm3s/s,
m3s/h, m3s/min, m3s/s
ul/h, ul/min, ul/s,
ml/h, ml/min, ml/s,
l/h, l/min, l/s,
cc/h, cc/min, cc/s,
mm3/h, mm3/m, mm3/s,
cm3/h, cm3/m, cm3/s,
m3/h, m3/min, m3/s,
cfh, cfm, cfs
Unit type list
Due to compatibility the maximum string length is limited to 7 characters. Therefore some unit names are
truncated. For instance mm3n/m means mm3n/min.
Controller Speed (Kspeed)
Type
Access
Range
FlowDDE
FLOW-BUS
Modbus
Float
RW
0.2...5
254
114/30
0xF2F0...0xF2F1/62193...62194
This parameter sets the controller speed factor for the selected fluidset. The '254Kspeed' parameter is set from factory
between value '0.5' (slow) and '2' (fast). The default value is '1'. Slower or faster settings are possible between values 0.2 and 5
at the customer's responsibility.
Actual Temperature
Type
Access
Range
FlowDDE
FLOW-BUS
Modbus
Float
R
-250...500
142
33/7
0xA138...0xA139/41273...41274
Indication of the medium temperature in °C.
Pressure
Type
Access
Range
FlowDDE
FLOW-BUS
Modbus
Float
RW
0...3.4E+38
143
33/8
0xA140...0xA141/41281...41282
Indication of the actual (inlet) pressure in bar(a). By default this parameter value is equal to the value of '178Inlet pressure'.
This parameter can be used for active pressure correction by setting parameter '354Conversion Condition Selection' to value 3
and writing the actual pressure to '143Pressure'. After power reset the parameter value is reset to the value of '178Inlet
pressure'.
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Fluid Temperature
Type
Access
Range
FlowDDE
FLOW-BUS
Modbus
Float
RW B
-250...500
181
113/16
0xF180...0xF181/61825...61826
(Fixed) temperature, used for capacity calculations.
Density
Type
Access
Range
FlowDDE
FLOW-BUS
Modbus
Float
RW B
0...3.4E+38
170
33/21
0xA1A8...0xA1A9/41385...41386
Density for the selected fluidset in kg/m3. Read-only parameter.
Viscosity
Type
Access
Range
FlowDDE
FLOW-BUS
Modbus
Float
RW B
0...3.4E+38
252
113/21
0xF1A8...0xF1A9/61865...61866
Dynamic viscosity for the selected fluidset in Pa·s. Read-only parameter.
Mix Fraction Type
Type
Access
Range
FlowDDE
FLOW-BUS
Modbus
Unsigned char
RW B
0...2
346
126/4
0x0FC4/4037
Set the fraction type for the mixture:
· Value 0: Volume fraction
· Value 1: Mass fraction
· Value 2: Mole fraction
Mix Fraction Temperature
Type
Access
Range
FlowDDE
FLOW-BUS
Modbus
Float
RW B
-250...500
347
126/5
0xFE28...0xFE29/65065...65066
Temperature for the mixture specification in °C
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Mix Fraction Pressure
Type
Access
Range
FlowDDE
FLOW-BUS
Modbus
Float
RW B
0...3.4E+38
348
126/6
0xFE30...0xFE31/65073...65074
Pressure for the mixture specification in bar(a).
Mix Fraction
Type
Access
Range
FlowDDE
FLOW-BUS
Modbus
Float
RWB
0...1
350
126/8
0xFE40...0xFE41/65089...65090
Mix fraction for the active mix component between 0 and 1, 0 = 0%, 1 = 100%
Mix Component Name
Type
Access
Range
FlowDDE
FLOW-BUS
Modbus
Unsigned char[10]
RW B
-
351
126/9
0xFE48…0xFE4C/65097…65101
This parameter consists of the fluid name for the active mix component. This parameter may contain two value types:
· Gas name, e.g. 'N2', 'He', 'C3H6 #2'.
· CAS number, e.g. '7727-37-9', '7440-59-7', '115-07-1'
4.1.4
Advanced alarm parameters
Bronkhorst® digital instruments have a built-in alarm function. It is used to indicate several types of alarm:
· System errors
· System warnings
· Min/max alarms
· Response alarms
· Batch alarm
· Master/slave alarms
The alarm types can be set with the parameter ‘118Alarm Mode’. When an alarm occurs, the type of alarm can be read out
using parameter ‘28Alarm Info’. After an alarm, an automatic setpoint change can be set using the parameters ‘120Alarm
Setpoint Mode’ and ‘121Alarm New Setpoint’. It is also possible to set an alarm delay to prevent overreaction to small
disturbances using the parameter ‘182Alarm Delay Time’. How an alarm can be reset is controlled by the parameter ‘156Reset
Alarm Enable’. It can bit-wise be set to automatic, reset, external or keyboard/micro switch. Note: when an alarm is disabled,
it will only switch off after the set ‘156Alarm Delay Time’ has passed.
Alarm Mode
Type
Access
Range
FlowDDE
FLOW-BUS
Modbus
Unsigned char
RW
0...3
118
97/3
0x0C23/3108
Available alarm modes:
· Value 0: Alarm off
· Value 1: Alarm on absolute limits
· Value 2: Alarm on limits related to setpoint (response alarm)
· Value 3: Alarm when instrument powers-up (e.g. after power-down)
For DeviceNet TM only modes 0 and 1 are available.
Alarm Info
Type
Access
Range
FlowDDE
FLOW-BUS
Modbus
Unsigned char
R
0…255
28
1/20
0x0034/53
This parameter contains 8 bits with status information about (alarm) events in the instrument (convert value to binary
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number to see which bits are active).
Bit
Low (0)
High (1)
Description
0
No error
An error occurred
Alarm register 2 contains an error
1
No error
A warning occurred
Alarm register 1 contains a warning
2
No error
Minimum alarm
‘Measured Value’ < ‘Alarm Minimum Limit’
3
No error
Maximum alarm
‘Measured Value’ > ‘Alarm Maximum Limit’
4
No error
Batch counter alarm
Batch counter reached its limit
5
No error
This bit only:
Power-up alarm (probably a power dip
occurred)
Response alarm (too much difference
between ‘8Measured Value’ and ‘9Setpoint’)
Together with bit 2 or 3:
LED indication
On (red) /
•normal
flash
On
(red)
•normal flash/
• /• Slow wink
• /• Slow wink
• /• Slow wink
• /• Slow wink
6
No error
Master/slave alarm
'Setpoint' out of limits due to ‘Slave Factor’ (>
100%)
N/A
7
No error
Hardware alarm
Hardware error
• On (red)
Type
Access
Range
FlowDDE
FLOW-BUS
Unsigned char
RW
0…255
182
97/7
Alarm events
Alarm Delay Time
Modbus
0x0C27/3112
This value represents the time in seconds the alarm action will be delayed when an alarm limit has been exceeded. This
value also delays the alarm off action if an alarm limit is no longer exceeded. Default value = '0'.
Alarm Maximum Limit
Type
Access
Range
FlowDDE
FLOW-BUS
Modbus
Unsigned int
RW
0…32000
116
97/1
0x0C21/3106
Maximum limit for the ‘8Measured Value’ to trigger the maximum alarm situation (after ‘182Alarm Delay Time’). Range 0…
32000 represents 0…100% signal. The ‘116Alarm Maximum Limit’ value must be greater than the ‘117Alarm Minimum Limit’
value. Default value = '0'.
Alarm Minimum Limit
Type
Access
Range
FlowDDE
FLOW-BUS
Modbus
Unsigned int
RW
0…32000
117
97/2
0x0X22/3107
Minimum limit for the ‘8Measured Value’ to trigger the minimum alarm situation (after ‘182Alarm Delay Time’). Range 0…
32000 represents 0…100% signal. The ‘117Alarm Minimum Limit’ value must be smaller than the ‘118Alarm Maximum Limit’
value. Default value = '0'.
Alarm Setpoint Mode
Type
Access
Range
FlowDDE
FLOW-BUS
Modbus
Unsigned char
RW
0…1
120
97/5
0x0C25/3110
· Value 0: No setpoint change at alarm (default)
· Value 1: New setpoint at alarm enabled (set at value ‘121Alarm New Setpoint’)
Alarm New Setpoint
Type
Access
Range
FlowDDE
FLOW-BUS
Modbus
Unsigned int
RW
0…32000
121
97/6
0x0C26/3111
New (safe) setpoint during an alarm until reset. Range 0…32000 represents 0…100% setpoint. Default value = '0'.
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Reset Alarm Enable
Type
Access
Range
FlowDDE
FLOW-BUS
Modbus
Unsigned char
RW
0…15
156
97/9
0C029/3114
Available alarm reset options (convert value to binary number to see which bits are active):
Bit
Low (0)
High (1)
Description
0
Off
On
Reset by micro switch
1
Off
On
External reset (not used)
2
Off
On
Reset by parameter ‘Reset’
3
Off
On
Automatic reset (when alarm conditions no longer apply)
Alarm reset options
Default value: value 15, all conditions above are enabled.
4.1.5
Advanced counter parameters
Counter Mode
Type
Access
Range
FlowDDE
FLOW-BUS
Modbus
Unsigned char
RW
0...2
130
104/8
0x0D08/3337
Available counter modes:
· Value 0: Counter off (default)
· Value 1: Counting upwards continuously
· Value 2: Counting up to limit in ‘124Counter Limit’ (batch counter)
Counter Value
Type
Access
Range
FlowDDE
FLOW-BUS
Modbus
Float
RW
0…
10000000
122
104/1
0x0D01/3330
Actual counter value in units selected at parameter ‘128Counter Unit’.
Counter Limit
Type
Access
Range
FlowDDE
FLOW-BUS
Modbus
Float
RW
0…9999999
124
104/3
0x0D03/3332
Counter limit/batch size in units selected at parameter ‘128Counter Unit’. Default setting is 0 ln.
Counter Setpoint Mode
Type
Access
Range
FlowDDE
FLOW-BUS
Modbus
Unsigned char
RW
0…1
126
104/5
0x0D05/3334
· Value 0: No setpoint change at batch limit (default)
· Value 1: Setpoint change at batch limit (set at value ‘127Counter New Setpoint’)
Counter New Setpoint
Type
Access
Range
FlowDDE
FLOW-BUS
Modbus
Unsigned int
RW
0…32000
127
104/6
0x0D06/3335
New (safe) setpoint when a counter limit is reached until reset. Range 0…32000 represents 0…100% setpoint. Default value =
'0'.
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Reset Counter Enable
Type
Access
Range
FlowDDE
FLOW-BUS
Modbus
Unsigned char
RW
0…15
157
104/9
0x0D09/3338
Available counter reset options (convert value to binary number to see which bits are active):
Low (0)
High (1)
Description
0
Bit
Off
On
Reset by micro switch
1
Off
On
External reset (not used)
2
Off
On
Reset by parameter ‘114Reset’
3
Off
On
Automatic reset (when alarm conditions no longer apply)
Counter reset options
Default value: value 7; bits 0, 1 and 2 are enabled.
Counter unit
Type
Access
Range
FlowDDE
FLOW-BUS
Unsigned char
RW
String
128
104/7
Modbus
This parameter gives access to the extended counter unit table which is available for MBC3 type of
instruments only.
The “Counter unit” displays the unit name set by “Counter unit index”. A valid “Counter unit”(for example ln) can also be
entered here which changes the “Counter unit index”.
The parameter is not secured.
Extended counter unit table
Mass
ug
mg
g
kg
Custom volume
ul
ml
l
mm3
cm3
dm3
m3
Normal volume
uln
mln
ln
mm3n
cm3n
dm3n
m3n
Standard volume
uls
mls
ls
mm3s
cm3s
dm3s
m3s
4.2
Field bus operation
4.2.1
FLOW-BUS master/slave controller operation
mini CORI-FLOW ML120 instruments offer possibilities for master/slave control via FLOW-BUS. The output value of any
instrument connected to FLOW-BUS is automatically available to all other instruments (without extra wiring). To setup
master/slave control the ‘12Control Mode’ of the instrument can be set to ‘FLOW-BUS Slave’ (value 2) or to ‘FLOW-BUS Analog
Slave’ (value 13), depending on how the ‘139Slave Factor’ should be set. Via the parameter ‘158Master Node’ the master device
for the instrument is set. It is possible to have multiple masters and slaves in a FLOW-BUS system. A slave instrument can
also be a master for other instruments.
Setpoints from master instruments can be received via FLOW-BUS only. The parameters for master/slave control can be
changed through both RS232 and FLOW-BUS.
Master Node
Type
Access
Range
FlowDDE
FLOW-BUS
Modbus
Unsigned char
RW
1…125
158
33/14
0x042E/1071
Set the master node for the instrument.
Slave Factor
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Type
Access
Range
FlowDDE
FLOW-BUS
Modbus
Float
RW
0…500
139
33/1
0x0421/1058
The controller output from the master instrument is multiplied by the ‘139Slave Factor’/100% to get the slave instrument
setpoint. Example: if a master output is 80% and the ‘139Slave Factor’ value = 50, then the slave instrument setpoint is 80% x
50%/100% = 40%.
4.2.2
Changing baud rate, node address and parity
Any changes made to the instrument communication settings will not be restored after a factory reset. See section 5.2 for
more details.
Top connector communication
Change the node address of the instrument by using the instructions for the applicable field bus in chapter 3. Change the
baud rate or parity of the installed field bus (top connector) with the following parameters using the RS232 interface:
Fieldbus 1 baudrate
Type
Access
Range
FlowDDE
FLOW
-BUS
Modbus
Unsigned long
RW B
0…10000000000
201
125/9
0xFD48...0xFD49/64841...64842
For the accepted values see the applicable field bus in chapter 3.
Fieldbus 1 parity
Type
Access
Range
FlowDDE
FLOW-BUS
Modbus
Unsigned char
RW B
0…2
335
125/12
0x0FAC/4013
The following values are accepted:
0 – no parity
1 – odd parity
2 – even parity
Side connector RS485 communication
Change the baud rate, node address or parity of the side-connector RS485 (FLOW-BUS or Modbus) interface (if installed) with
the following parameters in the 'Configuration Mode'.
Note: an instrument with 9-pin sub-D side connector set for RS485 FLOW-BUS or Modbus communication will not respond
when connecting to an RS232 configuration. If the instrument is not set for RS232 communication, use the micro switch on
top of the instrument to overrule the custom settings and switch to RS232 communication settings: press and hold the
micro switch at power-up and wait (12…16 sec) until both green and red LEDs flash (0.2 sec on, 0.2 sec off). Release
the switch to activate the ‘Configuration Mode’. In the ‘Configuration Mode’ the bus type and baud rate for the 9-pin sub-D
side connector are set to RS232 FLOW-BUS (Propar) at 38400 Baud. The ‘Configuration Mode’ remains active after power
down. Use the same procedure to deactivate the ‘Configuration Mode’.
•
•
Fieldbus 2 address
Type
Access
Range
FlowDDE
FLOW-BUS
Modbus
Unsigned char
RW B
0…255
309
124/10
0xFC50/64593
For the accepted values see the applicable field bus in chapter 3.
Fieldbus 2 baudrate
Type
Access
Range
FlowDDE
FLOW
-BUS
Modbus
Unsigned long
RW B
0…10000000000
310
124/9
0xFC48...0xFC49/64585...64586
For the accepted values see the applicable field bus in chapter 3.
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Fieldbus 2 parity
Type
Access
Range
FlowDDE
FLOW-BUS
Modbus
Unsigned char
RW B
0…2
336
124/12
0xFC60/64609
The following values are accepted:
0 – no parity
1 – odd parity
2 – even parity
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4.3
Special instrument features
4.3.1
Customized IO options (pin 5)
mini CORI-FLOW ML120 instruments offer various customized input/output functions through pin 5 of the 9-pin sub-D side
connector as an option. A number of the (factory installed) programmable IO options are offered as standard, these options
are described in this section. These options are available on request, and will be present on the order, but will not be
present on the back-side label of the instrument. The standard options are described below (the default selection is …-A1V).
Refer to document 9.16.118 for the applicable hook-up diagrams.
The customized IO options are factory installed, as indicated by last three characters of the model key (presented on the
back-side label of the instrument). These IO options cannot be changed manually.
A1V
0…10 Vdc output, controller (default selection)
Analog signal for pump or external valve steering (control signal only).
When the controller output is used for pump or external valve steering (Mass Flow Meters only), make sure
the ‘231Valve Maximum’ is set to 0.3 [A]. For Mass Flow Controllers, the controller output is limited to a value
below 10 Vdc due to the maximum valve current restriction.
B1V
4…20 mA output, controller
Analog signal for pump or external valve steering (control signal only).
When the controller output is used for pump or external valve steering (Mass Flow Meters only), make sure
the ‘231Valve Maximum’ is set to 0.3 [A]. For Mass Flow Controllers, the controller output is limited to a value
below 10 Vdc due to the maximum valve current restriction.
C3A
Digital output, min/max alarm
During a min/max alarm, pin 5 is pulled down to 0 Vdc.
C4A
Digital output, counter alarm
During a counter alarm, pin 5 is pulled down to 0 Vdc.
C5S
Digital output, enabled by setpoint (for shut-off control)
Pin 5 is pulled down to 0 Vdc at a controller setpoint, e.g. for shut-off valve activation.
For factory selected analog control (…-A#-C5S):
When the ‘12Control Mode’ is set for analog control by factory, the minimum setpoint at which the device
(shut-off valve) connected to pin 5 is activated is 1.9%, to avoid that possible noise on the analog input
does accidentally activate the device.
For factory selected digital control (…-D#-C5S):
When the ‘12Control Mode’ is set for digital control by factory, the setpoint threshold for activating the
device connected to pin 5 is any value > 0.
Note: If the instrument is forced into ‘Valve Safe State’, the digital output is not affected, so a (n.c.) shut-off
valve connected to pin 5 will not close when the (n.c.) controller is in ‘Valve Safe State’.
Make sure to use 24Vdc power supply corresponding to the shut-off valve specifications. Cable 7.03.572 (Tpart 9-pin D-sub/loose end) or 7.03.603 (T-part 9-pin D-sub/DIN43650C) can be used for this operating
option.
Example for -C5S- or -C0I- hook-up
C0I
44
Digital output, high/low switch via remote parameter (for shut-off control)
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Pin 5 is pulled down to 0 Vdc when writing value 1 to parameter ‘288IO Switch Status’, this is undone by
writing value 0.
A device connected to pin5 (e.g. a shut-off valve) can be activated/de-activated by writing the parameter
‘288IO Switch Status’.
Note: If the instrument is forced into ‘Valve Safe State’, the digital output is also affected, so a (n.c.) shut-off
valve connected to pin 5 will be closed when the (n.c.) controller is in ‘Valve Safe State’.
Make sure to use 24Vdc power supply corresponding to the shut-off valve specifications. Cable 7.03.572 (Tpart 9-pin D-sub/loose end) or 7.03.603 (T-part 9-pin D-sub/DIN43650C) can be used for this operating
option.
D9E
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.
F9B
Digital pulse output, batch counter
Pin 5 is pulled down to 0 Vdc when a given batch size is
reached (during a given pulse length).
By default, a pulse is given at each 1x the ‘128Counter Unit’
batch value, with a pulse length of 1 s. For instance, when
the ‘128Counter Unit’ is set to ln, a pulse is given each time
1 ln has passed through the instrument. An alternative
pulse length must be specified on order.
Provide a pull-up resistor of 5...10 kOhm to create 15...24
Vdc at pin 5 according to the hook-up diagram document
9.16.118.
H1E
4…20 mA input, external sensor
Sensor input, this function disables the internal sensor.
I3C
Digital input, controller mode valve close
Valve closes when pin 5 is connected to 0 Vdc.
Example for -F9B- hook-up
This function switches between the default ‘12Control Mode’ and mode (‘Valve Close’) (value 3). When the
default ‘12Control Mode’ is ‘digital’ the default value is 0 (‘BUS/RS232’ mode), when the default ‘12Control
Mode’ is ‘analog the default value is 1 (‘Analog Input’ mode).
I8C
Digital input, controller mode valve purge
Valve is fully opened when pin 5 is connected to 0 Vdc.
This function switches between the default ‘12Control Mode’ and mode (‘Valve Fully Open’) (value 8). When
the default ‘12Control Mode’ is ‘digital’ the default value is 0 (‘BUS/RS232’ mode), when the default ‘12Control
Mode’ is ‘analog' the default value is 1 (‘Analog Input’ mode).
I1R
Digital input, reset counter
The counter resets when pin 5 is connected to 0 Vdc.
Example for -I1R- or -I2Rhook-up
I2R
9.17.097
Digital input, reset alarm
The alarm resets when pin 5 is connected to 0 Vdc.
mini CORI-FLOW ML120
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4.3.2
Changing default control mode
Instruments are factory-set with the control mode set for either analog or digital setpoint source. See parameter ‘12Control
Mode’ to change the control mode. However after every (power-up) reset the instrument will return to its default control
mode. To change the control mode permanently use the following procedure:
Changing default digital operation to default analog operation:
1. Set parameter ‘7Init Reset’ to 64
2. Read parameter ‘86IOStatus’
3. Add 64 to the read value
4. Write the new value to parameter ‘86IOStatus’
5. Set parameter ‘7Init Reset’ to 82
Changing default analog operation to default digital operation:
1. Set parameter ‘7Init Reset’ to 64
2. Read parameter ‘86IOStatus’
3. Subtract 64 from the read value
4. Write the new value to parameter ‘86IOStatus’
5. Set parameter ‘7Init Reset’ to 82
Note: do not use this procedure if customized IO options -C5S- (digital output, enabled by setpoint), -I3C- (digital input,
controller mode valve close) or - I8C- (digital input, controller mode valve purge) are installed.
5
Troubleshooting and service
5.1
Diagnostics
When errors or warnings occur, connect the instrument to the Bronkhorst® support software to determine the cause of the
error or warning. For errors/warnings, connect the instrument to FlowPlot and open the 'Alarm & Count' section under
'Instrument Settings' to determine the cause of the alarm/warning message.
Firmware Version
Type
Access
Range
FlowDDE
FLOW-BUS
Modbus
Unsigned char
-
-
105
113/5
0xF128…0xF12A/ 61737…61739
Revision number of firmware.
Identification Number
Type
Access
Range
FlowDDE
FLOW-BUS
Modbus
Unsigned char
RW
0…255
175
113/12
0x0E2C/3629
Bronkhorst® (digital) device/instrument identification number. For mini CORI-FLOW ML120 instruments the following values
are
applicable:
· Value 7: DMFC (Digital Mass Flow Controller)
· Value 8: DMFM (Digital Mass Flow Meter)
Device Type
Type
Access
Range
FlowDDE
FLOW-BUS
Modbus
Unsigned char
RW
-
90
113/1
0xF108…0xF10A/ 61705…61707
The device type: DMFC or DMFM is stored in this read-only parameter.
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5.2
Troubleshooting
In this section a number of possible errors/malfunctions of the instrument are listed.
LED indications
See section 3.7 for interpretation of specific LED indications of the instrument
Factory reset
In case (re)setting of the instrument has led to unexpected or non-recoverable behavior, it is possible to reset the
instrument to the settings applied at the factory during production. Use the 'Restore Settings' button at the bottom under
'Instrument Settings' in FlowPlot or use the micro switch on top of the instrument (section 3.8) to restore the instrument to
the original factory settings. Note that any changes made to the instrument communication settings will not be restored
after a factory reset. If digital communication with the instrument can not be re-established, see section 3.4 to overrule the
actual 9-pin sub-D communication settings with the 'Configuration Mode' (using the micro switch) and use the RS232
communication mode to re-establish communication.
Troubleshooting list
Symptom
Possible cause
Action
Red LED is irregular or continuously on
Gas bubbles in tube (of liquid meter)
Purge to get rid of gas bubbles
Advise: use frequency and/or
density signal to detect if gas or
liquid is in the tube.
Mount isolation rubbers and
flexible tubing.
Have instrument checked by
specialist
Too much vibrations
Red LED is continuously on
Hardware error
Desired flow is not achieved
Clogging of the instrument
1a) purge at outlet and/or inlet
with dry air if possible and
compare max flow with fixed inlet
pressure to values in the table of
the brochure or using CoriCalc
pressure calculations.
Inlet pressure too low
1b) check inlet pressure and, if
necessary, increase inlet pressure.
2a) check power supply
2b) check cable connection
2c) return to factory
No output signal
No power supply
Output stage damaged due to long
lasting shortage and/or high-voltage
peaks
Supply pressure too low, or
differential pressure across meter too
low
Valve blocked/contaminated
Maximum output signal
9.17.097
Piping or filters blocked
Sensor failure
Output stage damaged
Sensor failure
mini CORI-FLOW ML120
2d) increase supply pressure
2e) connect 0 .. 15 Vdc to valve and
slowly increase voltage while
supply pressure is ‘on’. If the valve
is not open, then clean parts and
adjust valve (qualified personnel
only)
- This only applies to external
proportional valves.
2f) clean system
2g) return to factory
3a) return to factory
3b) return to factory
47
Bronkhorst®
Symptom
Possible cause
Action
Output signal much lower than
setpoint signal or desired flow
Piping or filters blocked/
contaminated
sensor blocked/contaminated
4a) clean system
Valve blocked/contaminated
Pressure/diff. pressure is to low
4c) clean valve
4d) try instrument on conditions
for which it was designed
5a) decrease supply pressure and/
or heat gas to be measured
Flow is gradually decreasing
Oscillation
Small flow at zero setpoint
High flow at zero setpoint
Condensation, occurs withNH3,
hydrocarbons such as C3H8,C4H10
etc.
Valve adjustment has changed
4b) clean sensor with a gas or
fluid
5b) see ‘1e)’
Supply pressure/diff. pressure too
high
6a) lower pressure
Pipeline too short between pressure
regulator and mini CORI-FLOW
6b) increase length or diameter of
piping upstream. Lengthen the
pipeline between pressure
regulator and mini CORI-FLOW
External vibration is present
Controller adjustment wrong
Unstable upstream pressure
6c) Remove external vibration
6e) adjust controller. Software like
FlowPlot can be used to do this.
Please contact the distributor for
details.
7b) apply correct pressure
7c) Purge and Zero the instrument
8b) Purge and Zero the
instrument
Pressure too high or much too low
Zero procedure not done
Zero procedure not done or with fluid
in the tube
Disturbances in the flow
Gas in the system or fluid in the tube
Expansion of liquids to gasses
9a) Purge the system
9b) Check properties fluid used
Advise: use frequency and/or
density signal to detect if gas or
liquid is in the tube
Calibration error
Instrument is not zeroed.
10a) Purge and Zero the
instrument
10b) Purge the system
10c) Measure long enough to get
a reliable measurement
10d) The mini CORI-FLOW is a
mass-flow meter/controller and
should not be checked with a
volume-meter.
Use dampener to stabilize inlet
pressure.
Gas in the system
Measure time to short
Right reference instrument
Totalization error
48
Pulsating or fast changing flow
mini CORI-FLOW ML120
9.17.097
Bronkhorst®
5.3
Service
For current information on Bronkhorst High-Tech B.V. and service addresses please visit our website:
ü 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:
› [email protected]
For after-sales questions, our Customer Service Department is available with help and guidance.
To contact CSD by e-mail:
› [email protected]
No matter the time zone, our experts within the Support Group are available to answer your request immediately or ensure
appropriate further action. Our experts can be reached at:
) +31 859 02 18 66
Bronkhorst High-Tech B.V.
Nijverheidsstraat 1A
NL-7261 AK Ruurlo
The Netherlands
9.17.097
mini CORI-FLOW ML120
49
Bronkhorst®
6
Removal and return instructions
Instrument handlings:
· Purge gas lines
· When toxic or dangerous fluids have been used, the customer should pre-clean the instrument
· Remove instrument from line
· The instrument must be at ambient temperature before packaging
· Insert the instrument into a plastic bag and seal the bag
· Place the bag in a appropriate shipping container
Add documentation:
· Reason of return
· Failure symptoms
· Contaminated condition
· Declaration on Contamination form: 9.17.032
When returning material, always describe the problem and if possible the work to be done, in a covering letter.
It is absolutely required to notify the factory if toxic or dangerous fluids have been metered with the instrument!
This to enable the factory to take sufficient precautionary measures to safeguard the staff in their repair department. Take
proper care of packing, if possible use the original packing box.
Contaminated instruments must be dispatched with a completely filled in 'declaration on contamination form'.
Contaminated instruments without this declaration will not be accepted.
Important:
Clearly note, on top of the package, the customer clearance number of Bronkhorst High-Tech B.V., namely:
NL801989978B01
If applicable, otherwise contact your distributor for local arrangements.
i
www
50
The declaration on contamination form is available at the Bronkhorst download site:
http://www.bronkhorst.com/files/support/safety_information_for_returns.pdf
mini CORI-FLOW ML120
9.17.097
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