Instruction Manual ES-FLOW
Instruction Manual
ES-FLOW™
Ultrasonic Volume Flow Meter/Controller
Doc. no.: 9.17.116A
Date: 18-08-2017
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®
2
Instruction Manual ES-FLOW™
9.17.116A
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 High-Tech B.V. reserves the right to modify or improve its
products and modify the contents without being obliged to inform any particular persons or organizations. The device
specifications and the contents of the package may deviate from what is stated in this document.
Symbols
Important information. Disregarding this information could cause injuries to people or damage to the instrument or
installation.
Helpful information. This information will facilitate the use of the instrument.
Additional info available on the internet or from your local sales representative.
Receipt of equipment
Check the outside packaging box for damage incurred during shipment. If the packaging 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 packaging 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 within the scope of delivery.
Do not discard spare or replacement parts with the packaging 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 package in a cupboard warehouse or similar. Care should be taken not to
subject the equipment to excessive temperatures or humidity.
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Bronkhorst®
Warranty
Bronkhorst® products are warranted against defects in material and workmanship for a period of three years from the date
of shipment, provided they are used in accordance with the ordering specifications and not subject to abuse or physical
damage. Products that do not operate properly during this period may be repaired or replaced at no charge. Repairs are
normally warranted for one year or the balance of the original warranty, whichever is the longer.
See 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 indeterminable internal causes.
It excludes failures and damage caused by the customer, such as contamination, improper electrical hook-up, physical shock
etc.
Re-conditioning of products primarily returned for warranty service that is partly or wholly judged non-warranty may be
charged for.
Bronkhorst High-Tech B.V. or affiliated company prepays outgoing freight charges when any part of the service is
performed under warranty, unless otherwise agreed upon beforehand, 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.
General safety precautions
This product is intended for use by qualified personnel who recognize shock hazards and are familiar with the safety
precautions required to avoid possible injury. Read the operating information carefully before using the product.
Before operating, make sure the line cord is connected to a properly grounded power receptacle. Inspect the connecting
cables for cracks or breaks before each use.
The module and accessories must be used in accordance with their specifications and operating instructions, otherwise the
safety of the equipment may be impaired.
If required, replace fuses with the same type and rating for continued protection against fire hazard.
Opening of the equipment is not allowed. There are no repairable parts inside. In case of a defect please return the
equipment to Bronkhorst High-Tech B.V..
One or more warning signs may be present on different parts of the product. These signs have the following meaning:
Consult the instruction manual for handling instructions
Surface may get hot during operation
Shock hazard; electrical parts inside
To maintain protection from electric shock and fire, replacement components must be obtained from Bronkhorst. Standard
fuses, with applicable national safety approvals, may be used if the rating and type are the same. Other components that are
not safety related may be obtained from other suppliers, as long as they are equivalent to the original component. Selected
parts should be obtained only through Bronkhorst, to maintain accuracy and functionality of the product. If you are unsure
about the relevance of a replacement component, contact Bronkhorst for information.
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Instruction Manual ES-FLOW™
9.17.116A
Bronkhorst®
Table of contents
1
............................................................................................................7
Introduction
1.1
. . . . manual
........................................................................................................7
Scope of this
............................................................................................................7
Intended use
1.2
1.3
1.4
1.5
............................................................................................................7
Product description
............................................................................................................8
Other documents
1.5.1
Model key. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9
Customized
. . . . IO
. . .options
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10
2
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12
Installation
2.1
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12
Check properties
.
Mounting. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12
2.2
2.3
2.4
2.5
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13
Fluidic connections
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13
Electrical .connections
2.6
. . . . . . . . interface
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13
Communication
. . . and
. . . . .powering
. . . . . . . . . . down
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14
Powering. .up
2.7
. . . . . lines
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14
Filling fluidic
3
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15
Operation
3.1
3.1.1
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15
User interface
Main screen
. . . . functions
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15
3.1.1.1
Unlocking
. . buttons
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15
3.1.1.2
Selecting. display
. . . . . . . . information
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16
3.1.1.3
Selecting. screen
. . . . . . . area
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16
3.1.1.4
Editing setpoint
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16
3.1.1.5
Resetting. counter
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17
3.1.1.6
Resetting. alarm
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17
3.1.2
Menu navigation
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18
3.1.2.1
Password. .protection
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19
3.1.2.2
Editing string
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19
3.1.2.3
Editing list
. . .selection
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19
3.1.3
Settings menu
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20
3.1.3.1
Readout . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20
3.1.3.2
Controller. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20
3.1.3.3
Counter . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22
3.1.3.4
Alarm
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22
3.1.3.5
Setup
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23
3.1.3.6
Advanced. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24
3.1.4
Security menu
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 25
3.1.4.1
Changing. . password
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 26
3.1.4.2
Resetting. password
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 26
3.1.5
LED indications
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 27
3.1.5.1
DeviceNet™
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 28
3.1.6
Multifunctional
. . . . . . . .switch
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 28
3.2
3.2.1
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 30
Digital parameters
General . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 30
3.2.2
Special parameters
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 31
3.2.2.1
Default control
. . . . . . . mode
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 33
3.2.3
Measurement
. . . . . . and
. . . . .control
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 33
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Bronkhorst®
3.2.4
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 34
Device identification
3.2.5
Alarms . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 35
3.2.6
Counter . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 37
3.2.7
Network .configuration
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 38
3.2.8
Controller. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 40
3.2.9
Master/slave
. . . . .configuration
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 42
3.3
3.3.1
Zeroing . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 42
Autozero. function
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 43
3.3.2
Manual procedure
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 43
3.3.3
Digital procedure
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 43
4
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 44
Maintenance
4.1
4.2
General . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 44
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 44
Calibration
5
. . . . . . . . . . . . .and
. . . . .service
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 45
Troubleshooting
5.1
5.2
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 45
Troubleshooting
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 45
Common. issues
5.3
Service . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 47
6
. . .and
. . . . .return
. . . . . . . .instructions
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 48
Removal
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1
Introduction
1.1
Scope of this manual
This manual covers general product information, installation and operating instructions and troubleshooting tips for the
ES-FLOW™ digital volume flow meter/controller for liquids.
1.2
Intended use
The ES-FLOW™ is designed to accurately measure and control low volume flows with high precision and a limited pressure
drop. A wide range of liquids can be measured independent of fluid density, temperature and viscosity.
Responsibility for the use of the equipment with regard to suitability, intended use, cleaning and corrosion resistance of the
used materials against the metered media lies solely with the end user.
Bronkhorst High-Tech B.V. cannot be held liable for any damage resulting from improper use or use for other than the
intended purpose.
1.3
Product description
The ES-FLOW™ is a precise and compact volume flow meter with control function for liquids, based on a novel ultrasonic
technology.
Measuring principle
Measuring is done in a straight tube, without obstructions or dead spaces. Multiple transducers measure both the surface
acoustic wave and the transit time through the media. All up- and down-stream combinations are recorded and processed
in nanoseconds. The sound wave velocity and the surface area are recalculated to the volume flow value. This ultrasonic
measuring method is fast, accurate and inherently bi-directional.
Application
The combination of a straight sensor tube with zero dead volume, self-drainability, orbital TIG-welding and hygienic
connections, makes the ES-FLOW especially suitable for hygienic applications. For non-hygienic applications, the instrument
can be equipped with compression type fittings. Wetted parts are made of stainless steel, the housing has a high ingress
protection rating.
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Bronkhorst®
Operation
The ES-FLOW™ can be operated with the integrated readout and control unit, as well as
digitally, via RS232 or fieldbus (Modbus, FLOW-BUS, PROFIBUS DP or DeviceNet™), or in
analog mode. The readout and control unit has a capacitive touchscreen with a TFT
display. The fluid temperature can be read out as a secondary output. An on-board PID
controller can be used to drive a control valve or pump, establishing a complete, compact
control loop.
Multi-range
The ES-FLOW™ offers multi-range functionality: factory calibrated ranges can be easily reranged to a different full scale range. Because of the extremely high linearity of the sensor, this does not affect the original
accuracy specifications.
The instrument comes with a calibration certificate for all supported full scale ranges. The actual full scale of the instrument
is set to a value as ordered.
1.4
Other documents
The ES-FLOW™ comes with all necessary information for basic operation and maintenance. This section lists all
documentation that is relevant to the ES-FLOW™. Some documents are not necessarily part of the scope of delivery, but
can be provided on request. Documents with a check mark in the column labeled 'www' can be downloaded from
http://www.bronkhorst.com/en/downloads.
Type
Documents
www
General documentation
9.06.021 - EU Declaration of Conformity

Calibration certificates
Technical documentation
9.60.069 - ES-FLOW Brochure

7.15.194 - Dimensional drawing ES-FLOW

Some parts of this manual refer to fieldbus specific features of the instrument. This may concern relevant hook-up
diagrams, as well as a detailed description of the digital interface and how to access the available parameters. The
information referred to can be found in the following documents:
Interface type
Documents
DeviceNet™
9.17.026 - Instruction manual DeviceNet™ interface

9.16.184 - Hook-up diagram ES-FLOW instruments DeviceNet™

9.17.024 - Instruction manual FLOW-BUS interface

9.16.186 - Hook-up diagram ES-FLOW instruments FLOW-BUS

9.17.035 - Instruction manual Modbus interface

9.16.185 - Hook-up diagram ES-FLOW instruments Modbus

9.17.025 - Instruction manual PROFIBUS DP interface

9.16.187 - Hook-up diagram ES-FLOW instruments PROFIBUS DP

9.17.027 - Instruction manual RS232 interface

9.16.156 - Hook-up diagram ES-FLOW instruments RS232

FLOW-BUS
Modbus
PROFIBUS DP
RS232
www
A full list of instrument parameters can be found in document 9.17.027 - Instruction manual RS232 interface. However,
most Bronkhorst® instruments only support a limited set of parameters.
Be aware that some unsupported parameters may be ignored by the device or may even have harmful (side) effects if used.
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1.5
9.17.116A
Model key
Instruction Manual ES-FLOW™
9
Bronkhorst®
1.5.1
Customized IO options
ES-FLOW™ instruments offer various customized input/output functions through pin 5 of the M12 connector as an option.
Some of the (factory installed) programmable IO options are offered as standard, these options are described in this section.
The last three characters of the model key (presented on the back-side label of the instrument) indicate the installed IO
configuration.
The customized IO options are factory installed and cannot be changed manually.
Code
Description
A1V
0…10Vdc 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), set
parameter Valve maximum to 0.3 [A]. For mass flow controllers, the controller output is limited to a value
below 10Vdc, due to the maximum valve current restriction.
B1V
4…20mA 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), set
parameter Valve maximum to 0.3 [A]. For mass flow controllers, the controller output is limited to a value
below 20mA, due to the maximum valve current restriction.
C3A
Digital output, min/max alarm
During a min/max alarm, pin 5 is pulled down to 0Vdc.
C4A
Digital output, counter alarm
During a counter alarm, pin 5 is pulled down to 0Vdc.
C5S
Digital output, enabled by setpoint (for shut-off control)
Pin 5 is pulled down to 0Vdc at a controller setpoint, e.g. for shut-off valve activation.
For factory selected analog control (…-A#-C5S):
If parameter Control 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%. This prevents possible noise on the analog input
activating the device accidentally.
For factory selected digital control (…-D#-C5S):
If parameter Control 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.
C0I
Digital output, high/low switch via remote parameter (e.g. for shut-off valve control)
Pin 5 is pulled down to 0Vdc when writing value 1 to parameter IO 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 parameter IO
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.
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.
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Code
Description
F9B
Digital pulse output, batch counter
Pin 5 is pulled down to 0Vdc when a given batch size is reached (during a given pulse length).
By default, a pulse is given at each 1x the Counter unit batch value, with a pulse length of 1 second. For
instance, when Counter 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...10kOhm to create 15...24Vdc at pin 5 (according to the applicable hook-up
diagram).
H1E
4…20mA 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 0Vdc.
This option switches between the default Control mode and mode ‘Valve Close’ (value 3). When the default
Control mode is digital, the default value is 0 (bus/RS232), when the default Control mode is analog, the
default value is 1 (Analog input).
I8C
Digital input, controller mode valve purge
Valve is fully opened when pin 5 is connected to 0Vdc.
This option switches between the default Control mode and mode ‘Valve Fully Open’ (value 8). When the
default Control mode is digital, the default value is 0 (bus/RS232), when the default Control mode is analog,
the default value is 1 (Analog input).
I1R
Digital input, reset counter
The counter resets when pin 5 is connected to 0Vdc.
I2R
Digital input, reset alarm
The alarm resets when pin 5 is connected to 0Vdc.
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Bronkhorst®
2
Installation
This chapter describes the steps to take in order to prepare the ES-FLOW™ for first time use.
2.1
Check properties
Before installing the ES-FLOW™, check if the functional properties match your requirements. The
ES-FLOW Brochure provides general technical specifications, specific technical data can be found
on the product label and in the ordering details.
·
·
·
·
·
Flow/pressure rate(s)
Media to be used in the instrument
Upstream and downstream pressure(s)
Ambient temperature
Input and output signal
Bronkhorst® instruments are pressure tested to 1.5 times the requested pressure rating. Before installation, make sure that
the tested pressure is in accordance with the safety factor of your application.
The tested pressure is specified on the product label. If the product label is missing or if the specified pressure is insufficient,
the instrument must not be used and should be returned to the factory.
Bronkhorst® instruments are leak tested to at least 2 * 10-9 mbar l/s Helium.
2.2
Mounting
Location
The presence of gas bubbles in the liquid can lead to measuring errors. In
general, the instrument should be mounted in a pipe segment where gas
bubbles cannot accumulate. The image to the right shows the preferable
mounting locations.
· The best location is a horizontal pipe segment or a segment where the fluid direction is upward.
· Gas might accumulate in the horizontal segment if it is followed by a downward segment. Do NOT mount
the instrument in a location like this.
· Mounting in a downward pipe segment with an open end is strongly dissuaded, especially if the pipe
diameter is 1/2" or more. Gravity might let the segment run empty; depending on the specific system
dimensions and the viscosity of the metered fluid, this effect might be stronger or weaker.
· If the instrument is part of a closed fluidic system, mounting the instrument in a downward pipe segment is
not preferable, but may be considered if other mounting locations are more problematic.
To minimize the risk of gas inclusion by cavitation, the preferred location to install a control valve is downstream from the
instrument, the preferred location for a pump is upstream.
Orientation
The ES-FLOW™ has no preferred mounting orientation. However, take into account that the
connection between the measuring tube and the instrument housing is fixed. The display
cannot be turned to get a better view, it can only be adjusted by repositioning the entire
instrument.
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Environment
To prevent damage to the internal electronics, make sure the temperature inside the instrument housing does not exceed
60 °C. If necessary, take appropriate heat discharging measures, especially if the instrument is operated inside an enclosure
(e.g. a control cabinet).
2.3
Fluidic connections
The FLOW arrow on the measuring tube indicates the normal flow direction. For normal use, install the ES-FLOW™ in the
process line, in accordance with the direction of the FLOW arrow. For bi-directional measuring, install the instrument in the
direction where the highest flow will be measured (if applicable). When deciding in which direction to install the instrument,
take into account that the measuring range in the opposite direction is approximately 73% of the full scale range (whereas
the instrument can measure 131% FS in the normal direction).
Tighten fittings according to the instructions of their manufacturer.
Do not install small diameter piping on high flow rates and avoid abrupt angles or other disturbances within a distance of
10 pipe diameters from the inlet or outlet of the device.
Do not install pressure regulators within a distance of 25 pipe diameters.
Check the system for leaks before applying pressure, especially if toxic, explosive or other dangerous fluids are used.
2.4
Electrical connections
The ES-FLOW™ is equipped with one or more electrical connection ports. The image to the
right shows the locations of the different ports (the actual presence and appearance of ports
might be different, depending on the ordered fieldbus interface and instrument type):
1. Standard connection port, 8-pin M12 male
2. Optional fieldbus connection port, 5-pin M12 male/female (fieldbus dependent)
3. Optional connection port for actuator output (on request)
Electrical connections must be made with standard cables or according to the applicable hook-up diagram. Make sure that
the power supply is suitable for the power ratings as indicated on the instrument label or in the technical specifications,
and that double or reinforced insulation is used for the power supply cabling.
Do not power the instrument simultaneously from two different power sources (e.g. bus connection and Plug-in Power
Supply). Doing so will damage the printed circuit board irreparably.
The device contains electronic components that are susceptible to damage by electrostatic discharge. Proper handling
procedures must be taken during installation, removing and connecting the electronics.
The device described in this manual carries the CE-mark and is compliant with the concerning EMC requirements.
However, compliance with the EMC requirements is not possible without the use of proper cables and connector/gland
assemblies Bronkhorst recommends the use of their standard cables. These cables have the right connectors and 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 loss must be kept as low as possible. When in doubt, contact your
distributor.
When connecting the product to other devices (for instance a PLC), be sure that the integrity of the shielding is not affected.
Do not use unshielded wire terminals.
2.5
Communication interface
Check if the default network settings match the configuration of the fieldbus system. If necessary, the default settings can
be overruled by changing the appropriate parameters (see Network configuration).
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Bronkhorst®
2.6
Powering up and powering down
It is recommended to turn on power before applying pressure and to switch off power after removing pressure.
Be sure to apply the specified pressure(s). Avoid pressure shocks and bring the device gradually up to the level of operating
conditions; open and close the fluid supply gently.
2.7
Filling fluidic lines
Before starting measurement and control, make sure to expel gas from the system by flushing all fluidic lines with the
process fluid at a relatively high flow rate.
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3
Operation
3.1
User interface
The screen representations in this section are for illustration purposes only. They do not necessarily reflect the exact lay-out
and/or text displayed on the screen. Some representations might only be applicable to certain instrument types or factory
configurations.
The image to the right shows the screen display, immediately after powering up. The following screen areas can be
distinguished:
1. Top line
2. Measure readout
3. Custom readout 1 (only for instruments with control
function)
4. Custom readout 2
The navigational buttons have the following functionality:
· Enter selected menu
· Enter edit mode
· Confirm selection/changes
· Navigate up in menu
· Change character or list item
· Navigate down in menu
· Change character or list item
· Return to previous menu
· Leave edit mode without making changes
· Select display info
The communication status of the instrument can be monitored
with the three LEDs to the left of the screen. See LED indications
for a description of the possible indications.
A multifunctional switch ( ) to the right of the screen can be
used to start several functions without having to enter the
menu (see Multifunctional switch).
3.1.1
Main screen functions
3.1.1.1 Unlocking buttons
The switch lock function prevents accidental activation of the user interface (.e.g. by cleaning the instrument and/or its
environment with a hose or high-pressure cleaner). The lock is activated after a period of inactivity (lock time; 60 seconds by
default), after which the individual tip buttons are disabled. The buttons can be unlocked by pressing and holding
and
for a couple of seconds (unlock time; default: 4 seconds).
The switch lock properties can be edited in the Settings menu.
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3.1.1.2 Selecting display information
The Custom readout 2 area can show different parameters.
Depending on the instrument type, the following parameters
may be available (editable parameters are marked with an *):
·
·
·
·
·
·
·
·
·
counter*
alarm*
capacity
setpoint*
percentage reading
actuator/valve percentage
temperature
density
bus address*
To change the displayed parameter, press
from the main
screen. Cycle through the available parameters by pressing
the button repeatedly.
3.1.1.3 Selecting screen area
Depending on the instrument type and the settings of the
readout and control unit, none, one or both of the custom
readout areas can display an editable parameter. If an area
contains an editable parameter, it can be selected and edited
in place. Selection is made visible by a red line above the
concerning area.
· To cycle through the editable screen areas, press
or
repeatedly
· To enter edit mode for the selected area, press
· When edit mode is active, press
at any time to leave edit
mode without making changes
3.1.1.4 Editing setpoint
· The setpoint of a controllable instrument can be changed if the parameter is displayed in the custom readout area.
· Instruments without a control function have no editable setpoint and can only be monitored (Custom readout 1 not
available).
If the setpoint is configured to be entered as a character string, follow these steps to change its value:
1. Select a readout area
that displays the
setpoint:
2. Press
to enter edit
mode (the first
character position is
highlighted):
3. Press
or
to select
the required character:
4. Press
to advance to
the next character
position:
On confirmation of the last digit, the entered value is stored and edit mode is left (whereupon the character highlight is
removed).
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If the setpoint is configured to be entered step-wise, follow these steps to change its value:
1. Select a custom
readout area that
displays a setpoint:
2. Press
to enter edit
mode (the current
value is highlighted):
3. Press
or
to
change the parameter
value (hold the button
to scroll fast):
4. Press
to store the
current value and leave
edit mode:
The setpoint input method (string or step-wise) can be set in the Settings menu (Settings > Setup > Customize > Setpoint)
3.1.1.5 Resetting counter
1. In the main screen,
select the Custom
readout 2 area:
2. Press
mode:
to enter edit
3. Press
or
to
change the value to
'yes':
4. Press
to confirm the
selected option and
reset the counter:
3.1.1.6 Resetting alarm
Before resetting the alarm, be sure to eliminate the cause. Resetting the alarm without changing the conditions that
caused it will re-activate the alarm immediately.
When an alarm occurs, a message blinks in the top line of the main screen. If the alarm is
configured to be reset automatically, the blinking stops as soon as the alarm conditions no
longer apply. If the alarm is configured to be reset manually, follow these steps to reset it:
1. Custom readout 2 area is
selected automatically:
9.17.116A
2. Press
mode:
to enter edit
3. Press
or
to
change the value to
'yes':
Instruction Manual ES-FLOW™
4. Press
to confirm the
selected option and
reset the alarm:
17
Bronkhorst®
3.1.2
Menu navigation
The configurable parameters of the instrument and settings of the readout and control unit are organized in a menu
structure.
Items
Menus can contain items of 3 different types:
Sub menu
An arrow pointing to the right indicates a sub menu
Parameter with list selection
An arrow pointing down indicates a parameter that can be
changed by selecting a value from a list
Character string parameter
· First line: unit (if applicable)
· Second line: current parameter value
Not all parameters can be edited; some parameter values are protected, or display a value that is directly linked to the value
of another parameter:
Normal display
Parameter can be edited
Dimmed
Parameter is read-only
Navigation
· Inside menus and sub menus, the selected item is highlighted in red
· Press
or
to navigate to the required menu item
· Arrows pointing up and/or down in the top line indicate the menu contains more items than
can be displayed.
· Press
to enter the selected sub menu or to enter edit mode
· Press
to return to the previous screen or menu or to leave edit mode without making
changes
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3.1.2.1 Password protection
1. By default, some items
are accessible only
after entering a
password:
2. Enter the password (if
the password contains
less than 8 characters,
fill the remaining
positions with spaces):
3. If the password is
correct, the selected
(sub) menu is
displayed on
confirmation of the
last character position:
4. If the password is
incorrect, access is
denied:
The default password is 'abc' (without quotes) and is case sensitive.
To avoid unauthorized access, change the default password immediately after installation. See Changing password for
instructions.
3.1.2.2 Editing string
1. Select the parameter to
be edited:
2. Press
to enter edit
mode (the first
character position is
highlighted):
3. Press
or
to select
the required
character/digit:
4. Press
to advance to
the next character
position:
On confirmation of the last character/digit, the entered value is stored and edit mode is left (wherupon the character
highlight is removed).
3.1.2.3 Editing list selection
1. Select the parameter to
be edited:
9.17.116A
2. Press
to enter edit
mode (the selected
value is highlighted):
3. Press
or
to scroll
through the available
options:
Instruction Manual ES-FLOW™
4. Press
to confirm the
selected option and
leave edit mode (the
highlight is removed):
19
Bronkhorst®
3.1.3
Settings menu
The Settings menu provides access to the user configurable instrument parameters, and contains settings for customizing
display behavior of the readout and control unit. The menu is divided into the following sections (available as sub menus):
Sub menu
Description
Readout
Readout settings and fluid selection
Controller
Instrument controller characteristics
Counter
Counter settings
Alarm
Alarm settings
Setup
Device identification, display customization and bus configuration
Advanced
Sensor filter settings and special functions
1. Start in the main
screen:
2. Press
to enter the
Settings menu:
3.1.3.1 Readout
In the Readout sub menu, the following parameters can be edited:
Parameter
Description
Supported values
Readout format
Display format of the measured value in the main screen
· actual
· percentage
Fluid
Selected (metered) fluid
As ordered
Capacity
Maximum readout/control value (100%) for the selected fluid As ordered
3.1.3.2 Controller
The Controller sub menu is only available if the control function of the instrument is enabled. This setting is part of the
instrument configuration at the factory.
Because controlling characteristics are optimized during manufacture, Bronkhorst strongly advises not to change these
parameters. If changing controller settings is absolutely necessary, it should be performed by or under supervision of
trained service personnel only.
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In the Controller sub menu, the following parameters can be edited:
Parameter
Description
Supported values
Speed
Controller speed factor
0.001…99.999
Slope
Controller adjustment speed
0.0…3000.0 seconds
Mode
Control mode
see table below
Pid-Kp
PID controller proportional action
Pid-Ti
PID controller integration action
Pid-Td
PID controller differentiation action
Open from zero
Open from zero response
0…255
Normal step
Normal step response
0…255
Stable situation
Stable situation response
0…255
Master node
Node address of the master instrument
0…128
Slave factor
percentage of the measurement value of the master
instrument
0…100.0%
The following control modes are available:
Value
Description
rs232
Normal operation via RS232
bus/rs232
Normal operation via fieldbus or RS232
analog input
Normal analog operation
setpoint 0 perc.
Setpoint set to 0%
setpoint 100 perc.
Setpoint set to 100%
control idle
Controller disabled, valve frozen in current position
actuator 0 perc.
Controller disabled, valve closed
actuator 100 perc.
Controller disabled, valve fully open
actuator steering
Controller disabled, valve opening equal to setpoint (percentage)
fb slave
Acting as slave of other instrument on FLOW-BUS
analog slave
Acting as slave of other instrument on analog input
fb ana slave
Acting as slave of other instrument on FLOW-BUS, slave factor set by analog input signal
The Master slave item is only available if one of the slave control modes is selected. Availability of Master node and Slave factor
depends on the selected mode:
Control mode
fb slave
Master node
Slave factor


analog slave
fb ana slave
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See also Master/slave configuration for more information about setting up a master/slave relationship between
instruments.
3.1.3.3 Counter
Bronkhorst® flow meters have a built-in counter function, which can be used to monitor and/or control the amount of
media flowing through the instrument. The flow can be stopped or changed when a certain limit is reached. Until the
counter is reset, the counter setpoint overrules the regular setpoint.
In the Counter sub menu, the following parameters can be edited:
Parameter
Description
Supported values
Mode
Selected counter mode
· off
· up to limit
· up
Reset
Reset method
· automatic
· manual
Limit
Counter limit or batch size
Setpoint range
Setpoint change
Specifies whether or not to change the setpoint after
reaching the counter limit
· yes
· no
Setpoint
New setpoint after reaching counter limit (until counter
reset)
Setpoint range
3.1.3.4 Alarm
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In the Alarm sub menu, the following parameters can be edited:
Parameter
Description
Supported values
Mode
Alarm type
·
·
·
·
Reset
Reset method; reset the alarm automatically if the alarm
conditions no longer apply, or manually via the user
interface
· automatic
· manual
Min alarm
Minimum limit
0…100%
Max alarm
Maximum limit
0…100%
Delay
Number of seconds to wait before triggering the alarm
action (after the alarm situation was activated)
0…255
Setpoint change
Specifies whether or not to change the setpoint after an
alarm situation is activated
· yes
· no
Setpoint
New setpoint until alarm reset
Setpoint range
off
min/max
response
power-up
3.1.3.5 Setup
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Bronkhorst®
The following parameters are available in the Setup sub menu:
Parameter
Description
Supported values
Usertag
Custom instrument name
text (16 positions)
Serial
Instrument serial number
n/a (read only)
Model
Instrument model number
n/a (read only)
Firmware instr
Firmware version instrument
n/a (read only)
Firmware bright
Firmware version readout and control unit
n/a (read only)
Info top
Information to show in the top line of the display
· usertag
· serial number
Info bottom
Information to show in the Custom readout 2 area
· setpoint
· valve
· disabled
Setpoint
Specifies if the setpoint is edited as digits or step-wise
· cursor
· step
Brightness
Screen brightness
0 ... 9
Screen saver
Enable or disable screen saver
· dimmer
· off
Saver time
Number of minutes of inactivity before screen saver
becomes active
1 ... 99
Switch lock
Enable or disable switch lock
· enabled
· disabled
Lock time
Number of seconds of inactivity before switches are locked
0...600
Unlock time
Number of seconds to hold buttons to unlock switches
2...100
Bus (Bus 1 and 2)
Fieldbus type
n/a (read only)
Medium (only Bus 2)
Communication type
· rs232
· rs485
Baudrate (Bus 1 and 2)
Communication speed
fieldbus dependent
Instr node (Bus 1 and 2)
Primary node address on the fieldbus
fieldbus dependent
3.1.3.6 Advanced
In the Advanced sub menu, the following parameters can be edited:
Parameter/function
Description
Supported values
Dynamic filter
0…1
Static filter
0…1
Autozero
Function for adjusting zero point (only for flow
meters/controllers)
Restore
Function for restoring instrument settings
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3.1.4
Security menu
To enter the Security menu, follow these instructions:
1. Start in the main
screen:
2. Press and hold
and
simultaneously for 5
seconds:
3. Enter the password to
enter the Security
menu:
In the Security menu, access to some delicate items can be restricted. The password that is used for password protected
items can also be changed here.
The following items can be restricted:
Item
Description
Edit setpoint
Edit mode of the setpoint
Reset counter
Manually resetting the counter in the Custom readout 2 area
Reset alarm
Manually resetting alarms in the Custom readout 2 area
Select instrument
Selecting another instrument on the fieldbus system (Custom readout 2 area)
Settings menu
Availability of the Settings menu
Advanced menu
Availability of the Advanced sub menu in the Settings menu
For each of these items, one of the following access modes can be set:
· Enabled: item is available without restrictions
· Disabled: item is not available
· Password: item is password protected
The password protection of the Security menu itself cannot be removed, nor can the menu be disabled.
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3.1.4.1 Changing password
1. Open the Security
menu and select the
New password item:
2. Press
to enter the
New password sub
menu:
3. Press
to enter edit
mode and enter the
new password:
4. After confirming the
last character, select the
Confirm item:
5. Press
to confirm the
new password:
The new password is applied only if it is confirmed; the password is active throughout the entire readout and control
program.
3.1.4.2 Resetting password
If the password is lost (after changing it), it can be reset by entering an encrypted key. This reset key can be obtained by
sending a so-called 'bht key' to your local Bronkhorst representative. After entering the reset key, the password will be reset
to the default value ('abc').
To get a bht key from the readout and control unit, follow these instructions:
1. Press
and
simultaneously for 5
seconds, until the
'enter password' screen
appears:
2. Again, press
and
simultaneously for 5
seconds, until the Reset
password screen
appears:
3. Write the bht key down
and send it to your
local Bronkhorst
representative by email. After validation,
you will receive a reset
key.
When you have received your reset key, proceed as follows:
4. Return to the Reset
password screen and
enter the reset key:
26
5. On confirmation of the
last character position,
the password is reset:
6. Press any key to return
to the main readout
screen
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3.1.5
LED indications
• (green)
• (red)
Mode: operation mode indication
Error: error/warning messages
(Until further notice, the Status LED has no functionality. It is installed considering future development and will be
described in due time.)
The tables below list the different LED indications:
• Green
Pattern
Time
Indication
off
continuous
Power-off or program not running
on
continuous
Normal operation mode
short flash
0.1 sec on,
2 sec off
No bus communication, valves are in safe state
blink
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)
long flash
2 sec on,
0.1 sec off
Configuration mode; on the 5-pin M12 connector, the baud rate is set to 38400 and
the bus type to RS232 FLOW-BUS (ProPar)
Pattern
Time
Indication
off
Continuous
No error
on
Continuous
Critical error; the instrument needs servicing before it can be used
short flash
0.1 sec on,
2 sec off
FLOW-BUS
PROFIBUS DP
Modbus
Node occupied: re-install instrument
No data exchange between master and slave (automatic recovery)
Data is being received or transmitted
blink
0.2 sec on,
0.2 sec off
FLOW-BUS
PROFIBUS DP
Modbus
Waiting for communication, check communication settings of all
FLOW-BUS devices in the fieldbus setup. Usually the ‘last node
address’ setting of one of the devices is incorrect.
Not used
Not used
FLOW-BUS
PROFIBUS DP
Modbus
Not used
Requested parameter not available
Not used
• Red
long flash
2 sec on,
0.1 sec off
• Green and • red (alternating)
Pattern
Time
Indication
slow wink
1 sec on,
1 sec off
Alarm indication; minimum/maximum alarm, power-up alarm, limit reached or batch
reached
normal wink
0.2 sec on,
0.2 sec off
Wink mode; by sending a command to the Wink parameter, the instrument flashes its
LEDs to indicate its position in a (large) system.
fast wink
0.1 sec on,
0.1 sec off
Selected action started (after releasing the multifunctional switch)
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3.1.5.1 DeviceNet™
DeviceNet™ instruments have different LED indications altogether, replacing the previously mentioned standard
indications.
DeviceNet™ instruments have two bi-color LEDs (green/red), to indicate network and module status:
• //• (green/red)
• • (green/red)
Network status (NET)
Module status (MOD)
The tables below list the different LED indications:
Network status
Pattern
Time
Indication
• off
• on, green
blinking,
•green
• blinking, red
• on, red
continuous
Power-off or offline
continuous
Online , connected, link OK
0.5 sec on,
0.5 sec off
Online, not connected; the instrument is online but has no connections to other
nodes or is not allocated to a master
0.5 sec on,
0.5 sec off
Connection timed out
continuous
Critical link failure; the device cannot connect to the network
Pattern
Time
Indication
• off
• on, green
blinking,
•green
• /• alternating
• on, red
continuous
No power
continuous
Normal operation mode
0.5 sec on,
0.5 sec off
Device is in standby mode or configuration is missing, incomplete or incorrect
0.5 sec green,
0.5 sec red
Self test mode
continuous
Critical error; the instrument needs servicing before it can be used
Module status
3.1.6
Multifunctional switch
Some special functions of the instrument can be started manually using the multifunctional switch near the LED indicators.
These functions are available in analog as well as in digital operation mode.
The available functions are selected from a repeating sequence of patterns, where each pattern indicates a special function.
To select and start a function, press and hold the switch until the LEDs show the pattern of the function to be started. By
releasing the switch, the selected function is started.
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Available functions in normal operating mode
· LED indications in this sequence are continuous
•
•
•
•
•
•
•
•
•
•
•
•
(green)
Time
Function
0…1 sec
No action
1…4 sec
FLOW-BUS: Auto install to bus Let the instrument obtain a free node address from
the FLOW-BUS system
Other fieldbuses: reset alarm
4…8 sec
Reset instrument; clear all warnings and error messages and restart the instrument
(red)
8…12 sec Auto-zero; re-adjust the zero-point of the instrument (only for flow
meters/controllers)
12…16 sec Enable FLASH mode for firmware update:
· the instrument shuts down and both LEDs turn off
· at the next power-up, the instrument will be active again
See Zeroing for background information and detailed instructions on how to perform a zeroing procedure.
Never perform the a zeroing procedure before having taken notice of the instructions.
Available functions during powering-up
· In order to access this sequence, press and hold the switch while powering-up the instrument.
· LED indications in this sequence are flashing (0.2 sec on, 0.2 sec off).
•
(green)
•
•
•
•
•
•
•
•
•
Time
Function
0...4 sec
No action
4...8 sec
Restore factory settings (except communication settings)
8...12 sec
FLOW-BUS: Auto install to bus; let the instrument obtain a free node address from
the FLOW-BUS system
(red)
12...16 sec Activate configuration mode:
· The baud rate and bus type for the 5-pin M12 connector are set to 38k4 and RS232
FLOW-BUS (ProPar)
· In configuration mode, the green LED blinks 2 seconds on and 0.1 second off
· Configuration mode remains active after powering-down and can be deactivated
by selecting this function again at the next start-up
Disabling/enabling
To avoid unwanted use of the multifunctional switch, it can be disabled through the digital interface using the following
procedure:
1. Set parameter Init reset to 64
2. Read parameter IO status
3. Subtract 8 from the read value
4. Write the new value to parameter IO status
5. Set parameter Init reset to 82
To re-enable te switch, add 8 to the value of IO status in step 3.
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3.2
Digital parameters
Most instrument parameters can only be accessed via digital communication. Each communication protocol uses its own
methods for communicating with instruments and accessing parameters.
FLOW-BUS
For configuration and operation of instruments via FLOW-BUS or RS232 (ProPar) , Bronkhorst provides the free FlowWare
software tools, which run on a Windows computer. The tools rely on FlowDDE, a Dynamic Data Exchange (DDE) server that
handles communication between the digital instruments and the software running in Windows.
The FlowWare tools and accompanying documentation can be downloaded from
http://www.bronkhorst.com/en/downloads.
Modbus
Configuring and operating instruments in a Modbus system can be done using third party software as a master device,
such as LabVIEW, ModScan, or a Modbus PLC.
PROFIBUS-DP
Configuring and operating instruments in a PROFIBUS DP system can be done using third party software as a master device,
such as SyCon® (by Hilscher GmbH) or Step 7 (for PLC by Siemens).
To configure a device, a so-called GSD file (General Station Description) can be loaded into the software. The GSD file
contains all necessary configuration information to operate the device in a PROFIBUS DP system, including communication
and network configuration, all available operating parameters, their data types, and supported data ranges. It also provides
a full parameter mapping, allowing the configuration software to access parameters mostly under their native names.
A GSD file for Bronkhorst® instruments can be downloaded from http://www.bronkhorst.com/en/downloads.
DeviceNet™
Configuring and operating instruments in a DeviceNet™ system can be done using third party software as a master device,
such as SyCon® (by Hilscher GmbH) or Step 7 (for PLC by Siemens).
To configure a device, a so-called EDS file (Electronics Data Sheet) can be loaded into the software. The EDS file contains all
necessary configuration information to operate the device in a DeviceNet™ system, including communication and network
configuration, all available operating parameters, their data types, and supported data ranges. It also provides a full
parameter mapping, allowing the configuration software to access parameters mostly under their native names.
An EDS file for Bronkhorst® instruments can be downloaded from http://www.bronkhorst.com/en/downloads.
3.2.1
General
This section contains information on the most commonly used parameters for operating the ES-FLOW. Descriptions are
grouped by category in tables as shown below:
Type
Access
Range
FlowDDE
FLOW-BUS
Modbus
[type]
RW 
[x]…[y]
[DDE par]
[Pro]/[Par]
[address]/[index]
In this manual, parameter names are printed in italics (reverted to normal where embedded in italics, like in this tip).
Type
Unsigned char
Unsigned int
Unsigned long
Float
Unsigned char [x]
30
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 
The parameter is read-only
The parameter can be read and written to
The parameter is protected and can only be written to when Init Reset is set to value 'unlocked' first
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
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
See document 9.17.027: ‘RS232 interface with FLOW-BUS for digital instruments’ for detailed information.
This document can be found at http://www.bronkhorst.com/en/downloads
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 (prefixed with ‘0x’), which translates 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
In the Modbus protocol, every address is two bytes long. Longer values are distributed among as many subsequent
addresses as needed.
Other interface protocols
Consult the specific fieldbus manual for reading/changing parameters via fieldbus communication (see Other documents).
3.2.2
Special parameters
Init Reset
Type
Access
Range
FlowDDE
FLOW-BUS
Modbus
Unsigned char
RW
82/64
7
0/10
0x000A/11
Init Reset is used to unlock secured parameters (designated by a  symbol) for writing. This parameter can be set to the
following values:
· 82: Locked, secured parameters are read-only
· 64: Unlocked, secured parameters can be read and written to
At power-up, Init Reset is always set to ‘Locked’ (value 82).
Reset
Type
Access
Range
FlowDDE
FLOW-BUS
Modbus
Unsigned char
R
0…5
114
115/8
0x0E68/3689
This parameter is used to reset the program, counter or alarms.
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Value
0
1
2
3
4
5
6
7
Description
No reset
Reset counter
Reset alarm
Restart batch counter
Reset and disable counter
Reset firmware program (soft reset)
Reset Alarm info error bit
Reset Alarm info warning bit
The Reset parameter may be disabled by Reset Alarm Enable or Reset Counter Enable. Make sure the value is accepted
by sending 0 first.
Wink
Type
Access
Range
FlowDDE
FLOW-BUS
Modbus
Unsigned char [27]
W
0…9
1
0/0
0x0000/1
Sending any text string value between 1 and 9 to this parameter makes the LED(s) on the instrument (if present) blink for
that number of seconds. This can be useful in order to identify a specific device in a large fieldbus network.
Control Mode
Type
Access
Range
FlowDDE
FLOW-BUS
Modbus
Unsigned int
RW
0…255
12
1/4
0x0024/37
Control Mode is used to select different control modes of the instrument and determines from which sources controller
setpoints are accepted. The following modes are available:
Value
Mode
Instrument action
Setpoint source
0
BUS/RS232
Normal operation via fieldbus or RS232
Fieldbus or RS232
1
Analog Input
Normal analog operation
Analog input
2
FLOW-BUS Slave
Acting as slave instrument on FLOW-BUS
FLOW-BUS master output x
Slave Factor x 100%
3
Valve Close
Controller disabled, valve closed
4
Controller Idle
Controller disabled, valve frozen in current position
7
Setpoint 100%
Setpoint fixed to 100%
8
Valve Fully Open
Controller disabled, valve fully open
9
Calibration Mode Calibration mode enabled
(factory only)
10
Analog Slave
Acting as slave of other instrument in analog mode
12
Setpoint 0%
Setpoint fixed to 0%
13
FLOW-BUS
Analog Slave
Acting as slave of other instrument on FLOW-BUS, slave
factor is set by analog input signal
FLOW-BUS master output x
Analog Input x Slave Factor x
100%
18
RS232
Normal operation via RS232
RS232
20
Valve Steering
Controller disabled, setpoint redirected to Valve output
21
Analog Valve
Steering
Controller disabled, analog input redirected to Valve output
22
Valve Safe State
Valve is in safe state (closed for N.C. valves, fully open for
N.O. valves)
Analog Input x Slave Factor
x100%
Immediately after power-up, Control Mode is set to 'Analog input’ or ‘BUS/RS232’ automatically, depending on the requested
default setting for analog or digital operation. If Control Mode is set to a value other than 0, 1, 9 or 18, the setting is
maintained after power-up.
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3.2.2.1 Default control mode
IO Status
Type
Access
Range
FlowDDE
FLOW-BUS
Modbus
Unsigned char
RW 
0…255
86
114/11
0x0E4B/3660
The instrument is set to accept a setpoint from either an analog or a digital source. This setting can be changed with
parameter Control Mode. However, at every power-up or reset, the instrument will return to its default control mode.
Parameter IO status sets the default control mode of the instrument, that is used at every power-up or reset. To change it,
use the following procedure:
Changing from digital operation to analog operation:
1. Set parameter Init reset to 64
2. Read parameter IO status
3. Add 64 to the read value
4. Write the new value to parameter IO status
5. Set parameter Init reset to 82
Changing from analog operation to digital operation:
1. Set parameter Init reset to 64
2. Read parameter IO status
3. Subtract 64 from the read value
4. Write the new value to parameter IO status
5. Set parameter Init reset to 82
3.2.3
Measurement and control
Measure
Type
Access
Range
FlowDDE
FLOW-BUS
Modbus
Unsigned int
R
0…41942
(65535*)
8
1/0
0x0020/33
This parameter indicates the 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.
*In case the instrument is prepared for bi-directional measurement, the negative signals with an output range of 73.73…-0.003% are translated to the range of 41943…65535, whereas the positive signals 0…131.07% are still
presented in the range 0…41942. (FlowDDE converts the numbers to negative values automatically).
Setpoint
Type
Access
Range
FlowDDE
FLOW-BUS
Modbus
Unsigned int
RW
0…32000
9
1/1
0x0021/34
This parameter is used to set the required flow rate for the controller. The signals have the same range as Measure, only the
setpoint is limited between 0 and 100% (0…32000).
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 variant of Measure. Fmeasure shows the measured value in the capacity and capacity unit for which the
instrument has been set. Fmeasure is dependent of Capacity Unit and Sensor Type.
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Fsetpoint
Type
Access
Range
FlowDDE
FLOW-BUS
Modbus
Float
RW
0…3.4E+38
206
33/1
0xA119…0xA11A/ 41241…41242
Floating point variant of Setpoint. Fsetpoint shows the setpoint in the capacity and capacity unit for which the instrument
has been set. Fsetpoint is dependent of Capacity Unit and Sensor 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 Analog Input has the same value range as Measure (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
parameter Control Mode).
3.2.4
Device identification
User Tag
Type
Access
Range
FlowDDE
FLOW-BUS
Modbus
Unsigned char[16]
RW
-
115
113/6
0xF130…0xF136/ 61745…61751
With this parameter, the instrument can be given a custom tag name, with a maximum of 16 characters.
Customer Model
Type
Access
Range
FlowDDE
FLOW-BUS
Modbus
Unsigned char[16]
RW 
-
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]
R
-
92
113/3
0xF118…0xF11F/ 61721…61728
Instrument serial number for identification.
BHT Model Number
Type
Access
Range
FlowDDE
FLOW-BUS
Modbus
Unsigned char[27]
RW 
-
91
113/2
0xF111…0xF117/ 61713…61719
This parameter shows the Bronkhorst® instrument model type information.
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3.2.5
Alarms
Alarm settings are most easily accessible via FlowPlot or FlowView software or a Bronkhorst® readout and control unit.
The built-in alarm functionality can be used to handle different alarm types:
· system errors and warnings
· min/max alarms
· response alarms
· batch alarms
· master/slave alarms
The used alarm type can be set with parameter Alarm Mode. When an alarm is activated, the type can be read out using
parameter Alarm Info. An automatic setpoint change can be set using the parameters Alarm Setpoint Mode and Alarm New
Setpoint. It is also possible to set an alarm delay, to prevent overreaction to small disturbances, using parameter Alarm Delay
Time. The methods by which an alarm can be reset are controlled by Reset Alarm Enable.
Alarm Mode
Type
Access
Range
FlowDDE
FLOW-BUS
Modbus
Unsigned char
RW
0…3
118
97/3
0x0C23/3108
Available modes:
Value
0
1
2
3
Description
Alarm off
Alarm on absolute limits
Alarm on limits related to setpoint (response alarm)
Alarm at power-up(e.g. after power-down)
(For DeviceNet™, 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
number to see which bits are active).
Bit
0
1
2
3
4
5
Value
1
2
4
8
16
32
6
7
64
128
Type
Error
Warning
Minimum alarm
Maximum alarm
Batch counter alarm
· This bit only: Power-up alarm
· If combined with bit 2 or 3:
Response alarm
Master/slave alarm
Hardware alarm
Description
Error flag raised
Warning flag raised
Measure < Alarm minimum limit
Measure > Alarm maximum limit
Batch counter reached its limit
Alarm possibly caused by a power dip
Difference between Measure and Setpoint too big
Setpoint out of limits (caused by Slave factor)
Hardware error
Alarm Delay Time
Type
Access
Range
FlowDDE
FLOW-BUS
Unsigned char
RW
0…255
182
97/7
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'.
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Alarm Maximum Limit
Type
Access
Range
FlowDDE
FLOW-BUS
Modbus
Unsigned int
RW
0…32000
116
97/1
0x0C21/3106
Maximum limit for Measure to activate the maximum alarm situation (after Alarm Delay Time). Range 0…32000 represents 0…
100% signal. Alarm Maximum Limit must be greater than Alarm Minimum Limit.
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 Measure to activate the minimum alarm situation (after Alarm Delay Time). Range 0…32000 represents 0…
100% signal. Alarm Minimum Limit must be smaller than Alarm Maximum Limit.
Default value: 0.
Alarm Setpoint Mode
Type
Access
Range
FlowDDE
FLOW-BUS
Modbus
Unsigned char
RW
0…1
120
97/5
0x0C25/3110
Specifies whether or not to change the setpoint after an alarm situation is activated.
Value
0
1
Description
No setpoint change (default)
Change setpoint to Alarm 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
Reset Alarm Enable
Type
Access
Range
FlowDDE
FLOW-BUS
Modbus
Unsigned char
RW
0…15
156
97/9
0C029/3114
Available reset methods for alarms. Up to 4 different methods can be specified; convert the value to binary to see which
methods are enabled.
Default value: 15 (all bits/methods enabled)
The following methods are supported:
Bit
0
1
2
3
36
Value
1
2
4
8
Description
Multifunctional switch
External
By parameter Reset
Automatically (when alarm conditions no longer apply)
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3.2.6
Counter
Counter settings are most easily accessible via FlowPlot or FlowView software or a Bronkhorst® readout and control unit.
Counter Mode
Type
Access
Range
FlowDDE
FLOW-BUS
Modbus
Unsigned char
RW
0…2
130
104/8
0x0D08/3337
Available modes:
Value
0
1
2
Description
Counter off (default)
Counting up continuously
Counting up until limit reached (set by Counter Limit)
Counter Value
Type
Access
Range
FlowDDE
FLOW-BUS
Modbus
Float
RW
0…
10000000
122
104/1
0x0D01/3330
Current counter value in units selected with parameter Counter 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 with parameter Counter Unit.
Default value: 0.
Counter Setpoint Mode
Type
Access
Range
FlowDDE
FLOW-BUS
Modbus
Unsigned char
RW
0…1
126
104/5
0x0D05/3334
Specifies whether or not to change the setpoint after reaching the counter limit.
Value
0
1
Description
No setpoint change (default)
Change setpoint to Counter 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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Counter Unit
Type
Access
Range
FlowDDE
FLOW-BUS
Modbus
Unsigned char[4]
RW
see table
below
128
104/7
0xE838…0xE839/59449…59450
The following units are supported:
Type
Mass
Custom
volume
Normal
volume
Standard
volume
Units
ug, mg, g, kg
ul, ml, l, mm3, cm3, dm3, m3
uln, mln, ln, mm3n, cm3n, dm3n, m3n
uls, mls, ls, mm3s, cm3s, dm3s, m3s
Reset Counter Enable
Type
Access
Range
FlowDDE
FLOW-BUS
Modbus
Unsigned char
RW
0…15
157
104/9
0x0D09/3338
Available reset methods for counters. Up to 3 different methods can be specified. The value is a bit-wise summation of the
enabled reset methods; convert the value to binary to see which methods are enabled.
Default value: 7 (bits/methods 0, 1 and 2 enabled)
The following methods are supported:
Bit
0
1
2
3
3.2.7
Value
1
2
4
8
Description
Micro-switch
External
By parameter Reset
Automatic (e.g. when counter value is reset)
Network configuration
Changes made to the network settings will not be restored by a factory reset.
Communication via fieldbus connection (RS485)
Use the following parameters to configure the instrument for communication via the fieldbus connection (5-pin M12):
Bus address
Type
Access
Range
FlowDDE
FLOW-BUS
Modbus
Unsigned char
RW 
0…255
199
125/10
0x0FAA/4011
Type
Access
Range
FlowDDE
FLOW-BUS
Modbus
Unsigned long
RW 
0…1.0E10
201
125/9
0xFD48…0xFD49/64841…64842
Baudrate
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Bus 1 parity
Type
Access
Range
FlowDDE
FLOW-BUS
Modbus
Unsigned char
RW 
0…2
335
125/12
0x0FAC/4013
The following values are accepted:
Value
0
1
2
Description
No parity
Odd parity
Even parity
Communication via standard connection (RS232/RS485)
Use the following parameters to configure the instrument for communication via the 8-pin M12 connection:
If the instrument is configured for RS485 FLOW-BUS or Modbus communication on the standard connection, it will not
respond when connected to an RS232 configuration. If that is the case, use the power-up functionality of the
multifunctional switch to switch to configuration mode and enable RS232 communication.
After configuring the required parameters, remember to return the instrument to the original communication mode.
Bus 2 address
Type
Access
Range
FlowDDE
FLOW-BUS
Modbus
Unsigned char
RW 
0…255
309
124/10
0x0F8A/3979
Type
Access
Range
FlowDDE
FLOW-BUS
Modbus
Unsigned long
RW 
0…1.0E10
310
124/9
0xFC48…0xFC49/64585…64586
Type
Access
Range
FlowDDE
FLOW-BUS
Modbus
Unsigned char
RW 
0…2
336
124/12
0x0F8C/3981
Bus 2 baudrate
Bus 2 parity
The following values are accepted:
Value
0
1
2
9.17.116A
Description
No parity
Odd parity
Even parity
Instruction Manual ES-FLOW™
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Bronkhorst®
Default configuration
Network configuration is done ex factory, as indicated on the instrument label or in the technical specifications. The table
below shows the supported configurations for the different interface protocols (default settings are printed in boldface):
Protocol
FLOW-BUS
(RS232)
FLOW-BUS
(RS485)
Modbus
(RTU/ASCII)
PROFIBUS DP
DeviceNet™
Bus address
3
3…125
1…247
0…126
0…63
Baud rate
9600
19200
38400
57600
115200
230400
460800
187500
400000
9600
19200
38400
56000
57600
115200
128000
256000
(autodetect)
9600
19200
45450
93750
187500
500000
1500000
3000000
6000000
12000000
125000
250000
500000
Parity
0
0
0, 1, 2
2
0
3.2.8
Controller
The picture below shows a basic diagram of the PID controller algorithm (proportional, integral, derivative) used in a digital
instrument.
The controller speed controls the overall performance of the controller algorithm. Basically, to adjust the controller
response, only the controller speed needs to be changed.
The algorithm is based upon the difference between the setpoint and the measured value (called the error value). The
correction signal to eliminate the error is assembled from 3 basic components:
· The P-action (proportional) multiplies the error value by a constant factor, to adjust the measure towards the (new)
setpoint.
· The I-action (integral) amplifies the correction signal with a factor depending on the integral of the error value over time.
· The D-action (derivative) reduces the strength of the P-action, to prevent overshoot when the (new) setpoint is reached.
The proportional action is enhanced by one of three additional response factors, depending on the control cycle stage:
· Open from zero: the setpoint is larger than zero and the measured value is below 2% of the full scale range.
· Normal step: the measured value differs more than 2% from the setpoint, typically after changing the setpoint (step).
· Stable situation: the measured value differs less than 2% from the setpoint.
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Because controlling characteristics are optimized during manufacture, Bronkhorst strongly advises not to change these
parameters. If changing controller settings is absolutely necessary, it should be performed by or under supervision of
trained service personnel only.
Controller speed
Type
Access
Range
FlowDDE
FLOW-BUS
Modbus
Float
RW
0.2…5
254
114/30
0xF2F0…0xF2F1/62193…62194
This parameter sets the overall controller speed factor for the selected fluid set. Kspeed is set ex factory between value
'0.5' (slow) and '2' (fast). The default value is '1'.
PID-Kp
Type
Access
Range
FlowDDE
FLOW-BUS
Modbus
Float
RW 
0…1E+10
167
114/21
0xF2A8…0xF2A9/62121…62122
PID controller proportional action, multiplication factor.
PID-Ti
Type
Access
Range
FlowDDE
FLOW-BUS
Modbus
Float
RW 
0…1E+10
168
114/22
0xF2B0…0xF2B1/62129…62130
PID controller integral action in seconds.
PID-Td
Type
Access
Range
FlowDDE
FLOW-BUS
Modbus
Float
RW 
0…1E+10
169
114/23
0xF2B8…0xF2B9/62137…62138
PID controller derivative action in seconds. The default value is 0.0.
Open from zero response
Type
Access
Range
FlowDDE
FLOW-BUS
Modbus
Unsigned char
RW 
0…255
165
114/18
0x0E52/3667
Response factor, applied to proportional action when opening the valve from 0%.
· Default value: 128 (no correction)
· Other values adjust the controller gain (correction signal) as follows: Controller gain = Controller speed * PID-Kp * 1.05(response
factor - 128)
Normal step response
Type
Access
Range
FlowDDE
FLOW-BUS
Modbus
Unsigned char
RW 
0…255
72
114/5
0x0E45/3654
Response factor, applied to proportional action during normal control (at setpoint step).
· Default value: 128 (no correction)
· Other values adjust the controller gain (correction signal) as follows: Controller gain = Controller speed * PID-Kp * 1.05(response
factor - 128)
Stable situation response
Type
Access
Range
FlowDDE
FLOW-BUS
Modbus
Unsigned char
RW 
0…255
141
114/17
0x0E51/3666
Stable situation response, applied when the controller is stable (within a 2% band around the setpoint).
· Default value: 128 (no correction)
· Other values adjust the controller gain (correction signal) as follows: Controller gain = Controller speed * PID-Kp * 1.05(response
factor - 128)
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3.2.9
Master/slave configuration
Normally, there is no communication between slave instruments in a fieldbus system. The FLOW-BUS system, however,
provides a feature to set up a master/slave relationship between two instruments. The typical behavior of a slave
instrument is to automatically set its own setpoint relative to the output of its master.
The output value of any instrument connected to FLOW-BUS is automatically available to all other instruments (without
extra wiring). A FLOW-BUS system can have multiple masters and slaves. A slave instrument can also be a master to other
instruments.
To setup a master/slave relationship between instruments, first determine which instrument should be the master and
which should be the slave, then set Control Mode of the slave instrument to ‘FLOW-BUS Slave’ (value 2) or ‘FLOW-BUS Analog
Slave’ (value 13), depending on how the Slave Factor should be set.
The slave instrument periodically polls the measurement value (output) of its master, multiplying it by the slave factor to
control its own flow to a percentage of the master's.
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.
To avoid damage to the instruments an/or the systems they are connected to, be sure to avoid circular references between
devices on the same fieldbus. The FLOW-BUS system does not have a protection mechanism.
Master Node
Type
Access
Range
FlowDDE
FLOW-BUS
Modbus
Unsigned char
RW
1…128
158
33/14
n/a
Set the master node for the instrument
Note that this parameter only is effective in a FLOW-BUS system.
Slave Factor
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 Slave Factor/100% to get the slave instrument setpoint.
In systems other than FLOW-BUS, Slave Factor is effective only if Control Mode is set to 'Analog slave'.
Example:
· master output = 80%
· Slave Factor = 50
 slave instrument setpoint = 80% x 50%/100% = 40%
3.3
Zeroing
The reliability and precision of a flow meter are affected by its mounting position and ambient conditions. The zero point
of the instrument (the point at which it detects no flow) is factory adjusted at conditions as stated on the product label or
in the technical specifications. If the ambient conditions or mounting position are significantly different, the instrument
may detect a flow when actually there is none. In that case, the instrument needs to be adapted to the new conditions by
re-adjusting the zero point.
Zeroing an instrument requires that:
· the ambient conditions (temperature, pressure) match those of the operating environment of the instrument
· the instrument is filled homogeneously with the operational media
· there is absolutely no fluid flow through the instrument
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The zeroing procedure can be performed in the following ways:
· with the autozero function of the integrated user interface module
· manually (using the multifunctional switch)
· digitally (via RS232 or fieldbus)
Once started, the zeroing procedure takes approximately 20 seconds to complete (longer if the output signal is unstable),
regardless of the preferred method.
3.3.1
Autozero function
The readout and control unit provides an automatic function for re-adjusting the zero-point of a flow meter, which
automatically steps through the required parameter settings. This autozero function can be found in the Advanced section
of the Settings menu:
1. In the Settings menu,
select the Advanced
item:
3.3.2
2. Enter the Advanced sub
menu and select the
Autozero item:
3. Enter the Autozero sub
menu and select Start
auto zero:
4. Press
to start the
procedure and wait
until it finishes:
Manual procedure
To start the zeroing function with the multifunctional switch, follow these instructions:
1. Change the setpoint of the instrument to 0 (zero)
2. Press and hold the multifunctional switch. After 4 seconds ,the red LED
green LED starts glowing
3. At that moment (which is after 8 to 12 seconds), release the switch
•
• starts glowing for 4 seconds, after which the
The green LED starts to blink fast, indicating that the zeroing procedure is being performed. On (successful) completion, the
green LED starts to glow continuously, while the output signal is 0% (parameter Measure = 0).
3.3.3
Digital procedure
To re-adjust the zero-point using a digital communication protocol (RS232 or fieldbus), set parameter values in the
following sequence:
Sequence #
1
2
3
4
5
6
Parameter
Setpoint
Init reset
Control mode
Calibration mode
Calibration mode
Calibration mode
Value
0
64
9
255
0
9
Action
stop flow (close control valve)
unlock secured parameters
enable calibration mode
enable error mode
reset calibration mode
start zeroing
The green LED starts to blink fast, indicating that the zeroing procedure is being performed. On completion, the green LED
starts to glow continuously, while the output signal is 0% (parameter Measure = 0). At the same time, parameter Control mode
changes back to its original value. If the zeroing procedure was successful, parameter Calibration mode changes to 0 (idle). If
the procedure fails, Calibration mode changes to 255.
After performing the zeroing procedure, remember to set parameter Init reset to value 0 to lock secured parameters
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4
Maintenance
4.1
General
No regular maintenance is required if the ES-FLOW is operated properly, with clean media, compatible with the wetted
materials, avoiding pressure and thermal shocks and vibrations. Units may be purged with a clean, dry and inert gas.
In case of severe contamination, cleaning the inside of the device may be required. After cleaning, the instrument has to be
re-calibrated.
Inexpertly servicing instruments can lead to serious personal injury and/or damage to the instrument or the system it is
used in. Therefore, servicing must be performed by trained and qualified personnel. Contact Bronkhorst for information
about cleaning and calibration. Bronkhorst has a trained staff available.
4.2
Calibration
The ES-FLOW is factory calibrated. Bronkhorst certifies that the instrument meets the rated accuracy. Calibration is
performed using measurement standards traceable to the Dutch Metrology Institute (VSL). Calibration certificates are
included in the scope of delivery.
Periodical inspection, recalibration or verification of the accuracy may be subject to individual requirements of the end user.
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5
Troubleshooting and service
5.1
Troubleshooting
For a correct analysis of the proper operation of an instrument, it is recommended to disconnect the unit from the process
line and check it without applying fluid supply pressure. In case the unit is dirty or clogged, this can be ascertained
immediately by loosening the fittings and performing a visual inspection.
Energizing and de-energizing the instrument can indicate if there is an electronic failure. After energizing, control behavior
can be checked by applying fluid pressure.
If you suspect leakage, do not disassemble the instrument for inspection, but contact your local distributor for service or
repairs.
5.2
Common issues
Symptom
Possible cause
Action
No fieldbus communication
No power supply
· Check power supply
· Check cable connection
· Check cable hook-up
Invalid node address
Change node address (see Network
configuration)
Other
Reset instrument and/or restart master. Contact
Bronkhorst if problem persists.
No power supply
· Check power supply
· Check cable connection
· Check cable hook-up
Sensor failure
Return equipment to factory
Wrong controller settings
Adjust settings (e.g. with FlowPlot)
Check valve pulsating
Replace check valve if necessary
Air accumulation in tubing
Flush the system to remove air
No output signal
Control behavior unstable
No flow (sending a setpoint has no No fluid supply
effect)
Flow rate rises, but never reaches
setpoint
Measured value or output signal
much lower than setpoint
Check upstream components for obstruction,
e.g.:
· fluidic lines
· valves
· filters
Inlet pressure or differential
pressure out of bounds
Set inlet pressure to a value within
specifications
Flow meter clogged
Flush the system with clean, dry air or a nonaggressive cleaning liquid (e.g. ethanol or
isopropyl alcohol)
Outlet pressure too high
Check outlet pressure
Process outlet blocked
Check process outlet and downstream piping
Inlet pressure too low
Use equipment in conditions it was designed
for
Supplied fluid type does not match Supply equipment with other fluid or change
configured fluid type
fluid type in instrument configuration
Measured value or output signal
indicates a flow, while there is
none
9.17.116A
Instrument not mounted
horizontally or ambient conditions
differ significantly from conditions
stated on instrument label
Perform zeroing procedure (see Zeroing)
System leakage
Check the system for leakage. Follow vendor
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Bronkhorst®
Symptom
Possible cause
Action
instructions when installing third party
components (e.g. adapters, tubing, valves)
Continuous maximum measured
value or output signal
46
Inlet pressure too high
Check inlet pressure
Sensor failure
Return equipment to factory
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5.3
Service
For current information on Bronkhorst® and service addresses, please visit our website:
 http://www.bronkhorst.com
Do you have any questions about our products? Our Sales Department will gladly assist you selecting the right product for
your application. Contact sales by e-mail:
› [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
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6
Removal and return instructions
When returning materials, always clearly describe the problem, and, if possible, the work to be done, in a covering letter.
Instrument handling:
1. Purge all gas and/or fluid lines
2. If toxic or dangerous fluids have been used, the instrument must be cleaned before shipping
3. Disconnect all external cabling and tubing and remove the instrument from the process line
4. If applicable, secure movable parts with appropriate transport safety materials, to prevent damage during
transportation
5. The instrument must be at ambient temperature before packaging
6. Insert the instrument into a plastic bag and seal the bag
7. Place the bag in an appropriate shipping container; if possible, use the original packaging box
Add documentation:
· Reason of return
· Failure symptoms
· Contaminated condition
· Declaration on decontamination
It is absolutely required to notify the factory if toxic or dangerous fluids have been in contact with the device!
This is to enable the factory to take sufficient precautionary measures to safeguard the staff in their repair department.
All instruments must be dispatched with a completely filled in 'Declaration on decontamination'. Instruments without this
declaration will not be accepted.
A 'Declaration on decontamination' form (document no 9.17.032) can be downloaded from
http://www.bronkhorst.com/en/downloads.
Important:
Clearly note, on top of the package, the customs clearance number of Bronkhorst High-Tech B.V., namely:
NL801989978B01
(only if applicable, otherwise contact your distributor for local arrangements.)
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