Quick Start Guide
for mass flow meter & controller

MASS-STREAM™
D-641x, D-642x, D-644x, D-646x, D-646xA,
D-647x, D-647xA, D-6471/DR3
D-648x, D-649x, MS-10x
IMPORTANT!
Read carefully before use.
Keep for future reference.

Safety First▶ Please read this manual carefully before installing andoperating the product.
▶ All instructions must be observed, including the online
available comprehensive instruction manual of the product.
▶ Failure to comply with the instructions may result in material
damage and personal injury, including danger to life.
▶ Scan the QR code (Product info) on the back cover to download
the additional product manuals.
▶ If in any doubt: scan the QR code (Service & Support) on theback cover to get in contact with Bronkhorst.
▶ Before working on the product: de-energize the product.
▶ Take appropriate measures to prevent electrostatic discharge(ESD) while working on the product.
▶ Always check for fluid leakage before and after working on theproduct.
▶ The product may run hot during operation depending on
process fluid and ambient temperature.
▶ Allow the product to cool down before carrying out any work.
▶ If necessary, wear protective gloves.

Intended Use
The product has been developed to measure and/or control mass
flow rates of clean and dry gases in a fluid system. The productis suited for general-purpose indoor (dry) applications, likelaboratories and machine enclosures, as well as for shelteredoutdoor applications, like installations in plant constructions.
Any other use is considered not intended.
▶ Observe the details on the serial number label and this guideto ensure correct use.

Notices for the user
The product requires professional experience and knowledge ofinstallation, operational requirements of the relevant industry, andknowledge of the type of application and national requirements
according to relevant standards and regulations.

Modifications
The product may not be disassembled or modified in any way or for
any purpose. Unauthorized modifications can undo safety features,compromise system specifications and cause failure to comply
with applicable laws, regulations and directives.
Any unauthorized modification will be considered as unintended
and improper use.

Process fluid
The product is intended for the use of the process fluid indicated on
the serial number label.
▶ Make sure that the process fluid used is identical to thatindicated on the serial number label.
In any other case:▶ Refer to the online available comprehensive manual forwhether the required process fluid is suitable for the producttype and wetted materials used.
▶ If in any doubt: scan the QR code (Service & Support) on theback cover to get in contact with Bronkhorst.
The user is responsible for taking the necessary safety measures
to prevent damage and/or injury while working with the productand process fluid.
▶ Please refer to the on-site available material safety data sheetof the process fluid (MSDS) before working on the product.

System pressure
The maximum permissible pressure is indicated in the technicalspecifications table in this guide. Exceeding this value may resultin product damage or leakage.
▶ Make sure that the maximum permissible pressure of theproduct is equal to or greater than the process conditions ofthe system.

Product types
This document only applies to the product types indicated on thefront cover of this Quick Start Guide.
▶ Check whether this Quick Start Guide applies to the product.

About this Quick Start GuideAll illustrations are general representations and may
differ from the actual configuration and product type.
This Quick Start Guide is intended for commissioning the productin a non-critical process. It will guide the user in controlling andmonitoring research and pilot setups using Bronkhorst FlowSuite
software.
▶ Prior to work, check whether a newer version of this document
is available on the Bronkhorst website.
▶ Scan the QR code (Product info) on the back cover to go theproduct landing page to download the latest version.

3456A

271

FLOW

MASS-STREAM™
1.
2.
3.
4.

Fluid inlet
Display/buttons (optional)
Connector (optional)
Switch/Push button

5.
6.
7.
8.

Status LEDs
Connector
Serial number label
Fluid outlet

8

Before Installation

52▶ Check the contents of the packaging box for damage.
▶ Install only undamaged products.

43

Label ‘Pressure Tested’

17A
Pinout - 8 DIN
1. TX-RS232/BUS
2. Analog output
3. Analog input
4. 0 V power
5. Custom*
6. RX-RS232/BUS
7. +Us (15 ... 24 Vdc)
8. 0 V sense
9.
10.
11. * Default disabled, 0 Vdc

86The red label ‘Pressure Tested’ indicates that the product has beentested and approved.
▶ Check if the label is on the product.
In case the label is missing, the product should be returned:▶ Scan the QR code (Service & Support) on the back cover to getin contact with a Bronkhorst representative.

Product specifications▶ Verify that the specifications on the serial number label matchthe application.
▶ Make sure that the product is sufficiently clean for its intendeduse.

Install Bronkhorst FlowSuite▶ Scan the QR code (Service & Support) on the back cover.
▶ Go to the Bronkhorst website and select your operating
system to download Bronkhorst FlowSuite. For download
information, see the back cover of this manual.
▶ Follow the on-screen instructions to install the application ona Windows PC.

Mounting location
To ensure reliable measurements, it is important to choose acorrect mounting location. For optimal performance, observe thefollowing guidelines:▶ Install the product on a flat, rigid, and clean surface [1].
▶ Avoid installation close to mechanical vibrations [2].
▶ Avoid installation close to magnetic field sources.
▶ Avoid installation close to heat sources [3].
▶ Mount the product to a rigid construction using the mounting
holes at the bottom of the base.
Bolt size

M3M4M5M61HzM8Torque [Nm] 0,51,2
2,44,09,7▶ See online available dimensional drawings for further details.

2Pressure rating▶ If applicable: install the process connections according to themanufacturer’s instructions.
▶ Check the maximum permissible system pressure in thetechnical specifications table in this guide.
▶ Make sure that the pressure rating of the product, is equal to orgreater than the maximum applied system pressure.

°C3

Piping requirements
The nominated upstream pressure must be fully
available directly at the inlet of the product.
For reliable measurements, it is important to:▶ Prevent turbulence in the flow.
▶ Provide a stable upstream pressure.
▶ Avoid using reducers, abrupt angles or any objects directly on
inlet and outlet of the product.
▶ Keep a minimum straight length according to the table below.
Minimum straightlength(1Without flow
straightenerWith flow
straightener

ABCDd1A

Product typeD-6471/DR3
Other> 20*d> 10*d> 6*d> 4*d> 10*d> 5*d---The minimum straight length is calculated by multiplying thespecified factor by the inside diameter (d) of the fluid line.

Bd2(1CD

Fluid line connection
CAUTION
Risk of personal injury due to fluid leakage!
Unsuitable piping material and loose connectors canlead to fluid leakage and severe injury.
▶ Use piping and tubing that are suitable for theoperating conditions of the application.
▶ Check all connections for fluid leakage before andafter applying fluid pressure.
▶ Cut the pipes/tubing squarely.
▶ Make sure that the pipes are clean and deburred before mounting.

▶ Connect the piping without stress to the product fluid inlet
and fluid outlet.
▶ Tighten fluid connections according to the manufacturer’sinstructions.
▶ Clean all connectors and tubing from dirt and debris.

Electrical connection
For basic setup, it is recommended to use Bronkhorst®
accessories (not included) as described in this manual.
▶ Connect the product to the PC by using a T-part 8DIN/SubD-9
cable and USB converter.
▶ Connect the PiPS-IN-8DIN power supply to the T-part.
▶ Turn on power.

24 V

When using third-party power supply and cables:▶ Make sure that the maximum power of the power supply issufficient to power the product.
▶ Check the pinout diagram for the correct pin layout.

Adding the product to Bronkhorst FlowSuite
When Bronkhorst FlowSuite is started, the software willautomatically search for connected products. All found products
are displayed in the left pane.
▶ Use the refresh option to check for newly connected products.
If the product is not found, it may not be set to serial RS-232.
▶ Follow the instructions on the next page to set the productto serial RS-232.

1Commissioning30 min▶ Apply fluid pressure gradually to prevent pressure shocks [1].
▶ Warm up the product for at least 30 minutes before starting
measurement [2].

Adjusting Zero PointTo ensure correct measurements, adjust Zero Point in the following
situations: before first use and after remounting [3].
To start adjusting Zero Point:▶ Open Bronkhorst FlowSuite on the PC.
▶ Select the product in the left pane.
▶ Go to the Actions menu.
▶ Press the button Auto Zero.
▶ Follow the on-screen instructions.
The product is ready for use!

23

Switching to serial RS-232

Product status in Bronkhorst FlowSuite

If a connection between the product and Bronkhorst FlowSuitecannot be established, the switch/push button can be used toenter the configuration mode and enable the required RS-232
communication. To activate the RS232 communication:▶ Switch off the power supply of the product.
▶ Push and hold the button while switching on the power.
▶ Release the button after 12 to 16 sec. when both LED’s (redand green) are fast blinking.
If the RS-232 communication is active, the green LED will longflash.

In Bronkhorst FlowSuite, an icon is displayed next to the productin the left pane. The icon indicates the status of the product. Whenselecting a product from the left pane, more status information is
given in the overview screen.
The icon colors are based on the NAMUR NE 107 standard and area simplified representation of the diagnostic data of the product.
Icon Icon color

Product status

Green

Normal operation- Valid output signal

Blue

Fast blink

Yellow
Long flash

Orange
1 sec

1 sec

To return to the factory configuration:▶ Repeat the procedure as described above.

RedMaintenance required- Output signal still valid
Out of specification- Signal out of the specified range
Check function- Output signal temporary non-valid
Critical failure- Non-valid output signal

Information on the Status LED on the product can befound in the online available comprehensive manual.

MaintenanceTechnical specifications

Although no routine maintenance is required, to ensure that theproduct works correctly and safely, a regular (visual) inspection isrecommended.

Description

UnitValue

Maximum fluid pressurebar(g)See serial numberlabelPermissible fluid temp.

°C (°F)

0 ... 50 (32 ... 122)

Permissible ambient temp.

°C (°F)

0 ... 50 (32 ... 122)

Storage conditions°C (°F)

0 ... 50 (32 ... 122)

Check prior to each use▶ Check cabling for proper connection, damage and wear.
▶ Check fluid lines and connections for leaks, damage and wear.
▶ Carry out repairs immediately.

Removing contamination
In case of clogging or contamination of the fluid path, purging theproduct and fluid lines may solve the issue.
▶ Purge the fluid path with a clean, dry and inert gas.

Cleaning exterior▶ Clean the product with a dry or slightly damp cloth.
▶ Avoid using abrasive or aggressive cleaning agents.

%RH

95 (non condensing)Max. install. altitudem (ft)2000 (6560)

Warm-up timemin.

30

Ingress protection
Power input

IP65
Vdc

15 ... 24 (±10 %)Power connector

8-DIN (male)Chamber thread

BSPP ISO 1179-1

Service and support

Disposal - end of life

If you have a question about the product or it does not meetthe specifications as ordered, do not hesitate to contact yourBronkhorst representative.
▶ To help you quickly, make sure you have the serial number ofthe product at hand.
▶ Scan the QR code (Service) on the back of this manual to get
in touch.

This symbol means that the product must not be disposedof with other waste, and instead must be returned (WEEE).
Bronkhorst will take care of proper dismantling, recycling
and/or reuse. By ensuring this product is disposed ofcorrectly, you will help prevent potential negative consequences
for the environment caused by inappropriate waste handling of
this product.

Customer Care

Within the EU:

No matter the time zone, our experts within the Customer Caredepartment are available to answer your request immediately ortake appropriate further action.

Return the item(s) following the return instructions on our website.
▶ Mention during the return process that the product is being
returned for disposal.

For information about Bronkhorst® and worldwide service
addresses, please visit our website.
▶ Scan the QR code (Service) on the back of this guide to get
in touch.

Outside the EU:

Conditions of sales
For information about the conditions of sales, please visit theBronkhorst website:www.bronkhorst.com/about/conditions-of-salesDisposal of electrical and electronic equipment (EEE) may besubject to local or national directives and/or legislation.
▶ Consult local or national authorities to learn how to handle EEE
properly in your area.

Declaration of conformity
The CE mark on the product indicates that it complies withrequirements imposed by the European Union.
The UKCA mark on the product indicates that it complies
with requirements imposed by Great Britain.
The full text of the applicable declarations of conformity areavailable at the following web address:
https://www.bronkhorst.com/downloads.

© 2024 Bronkhorst Instruments GmbH - All rights reserved
Bronkhorst® is a registered trademark. All trademarks are the property of
their respective owners.

Service & Support

9.17.183C • 2024-06

Bronkhorst Instruments GmbH+49 8166 9921 0

Am Ziegelwerk 1

info.bhi@bronkhorst.com

D-85391 Leonhardsbuch, Germany

www.bronkhorst.com

Bronkhorst FlowSuite

Product Info