Siemens SITRANS WF100 User manual

SITRANS WF100
SITRANS
Flowmeters
SITRA
NS WF100
Operating Instructions
7MH7186
08/2021
A5E51108132
-AA
Introduction
1
Safety notes
2
Description
3
Installing/Mounting
4
Connecting
5
Commissioning
6
Service and maintenance
7
Technical specifications
8
Dimension drawings
9
Product documentation and
support
A

Siemens AG
Commercial Vehicles
Postfach 48 48
90026 NÜRNBERG
GERMANY
Document order number: A5E51108132
Ⓟ
03/2022 Subject to change
Copyright © Siemens AG 2021.
All rights reserved
Legal information
Warning notice system
This manual contains notices you have to observe in order to ensure your personal safety, as well as to prevent
damage to property. The notices referring to your personal safety are highlighted in the manual by a safety alert
symbol, notices referring only to property damage have no safety alert symbol. These notices shown below are
graded according to the degree of danger.
DANGER
indicates that death or severe personal injury will result if proper precautions are not taken.
WARNING
indicates that death or severe personal injury may result if proper precautions are not taken.
CAUTION
indicates that minor personal injury can result if proper precautions are not taken.
NOTICE
indicates that property damage can result if proper precautions are not taken.
If more than one degree of danger is present, the warning notice representing the highest degree of danger will
be used. A notice warning of injury to persons with a safety alert symbol may also include a warning relating to
property damage.
Qualified Personnel
The product/system described in this documentation may be operated only by personnel qualified for the specific
task in accordance with the relevant documentation, in particular its warning notices and safety instructions.
Qualified personnel are those who, based on their training and experience, are capable of identifying risks and
avoiding potential hazards when working with these products/systems.
Proper use of Siemens products
Note the following:
WARNING
Siemens products may only be used for the applications described in the catalog and in the relevant technical
documentation. If products and components from other manufacturers are used, these must be recommended
or approved by Siemens. Proper transport, storage, installation, assembly, commissioning, operation and
maintenance are required to ensure that the products operate safely and without any problems. The permissible
ambient conditions must be complied with. The information in the relevant documentation must be observed.
Trademarks
All names identified by ® are registered trademarks of Siemens AG. The remaining trademarks in this publication
may be trademarks whose use by third parties for their own purposes could violate the rights of the owner.
Disclaimer of Liability
We have reviewed the contents of this publication to ensure consistency with the hardware and software
described. Since variance cannot be precluded entirely, we cannot guarantee full consistency. However, the
information in this publication is reviewed regularly and any necessary corrections are included in subsequent
editions.

SITRANS WF100
Operating Instructions, 08/2021, A5E51108132-AA 3
Table of contents
1 Introduction ........................................................................................................................................... 4
2 Safety notes........................................................................................................................................... 5
2.1 General safety instructions................................................................................................... 5
2.2 Installation in hazardous areas ............................................................................................. 6
3 Description............................................................................................................................................. 9
3.1 Material feed examples...................................................................................................... 13
4 Installing/Mounting ............................................................................................................................. 19
5 Connecting .......................................................................................................................................... 22
6 Commissioning .................................................................................................................................... 23
7 Service and maintenance .................................................................................................................... 27
8 Technical specifications....................................................................................................................... 31
9 Dimension drawings ............................................................................................................................ 33
A Product documentation and support................................................................................................... 34
A.1 Product documentation ..................................................................................................... 34
A.2 Technical support .............................................................................................................. 35
Index .................................................................................................................................................... 36

SITRANS WF100
4Operating Instructions, 08/2021, A5E51108132-AA
Introduction
1
Note
The Siemens flowmeter system is to be used only in the manner outlined in these operating
instructions, otherwise protection provided by equipment may be impaired.
•
It is your responsibility to read these operating instructions before installing and starting
up any component of the system to which the flowmeter is being applied.
Note
For industrial use only
This product is intended for use in industrial areas. Operation of this equipment in a
residential area may cause interference to several frequency based communications.
These operating instructions cover only solids flowmeter installation, operation, and
maintenance procedures. Integrator operating instructions are available for download from
our website:
Siemens weighing (http://www.siemens.com/weighing)
Follow these operating instructions for quick, trouble-free installation, and maximum
accuracy and reliability of your flow system.
We always welcome suggestions and comments about manual content, design, and
accessibility. Please direct your comments to:
Technical publications ([e-mail])

SITRANS WF100
Operating Instructions, 08/2021, A5E51108132-AA 5
Safety notes
2
2.1 General safety instructions
CAUTION
Correct, reliable operation of the product requires proper transport, storage, positioning and
assembly as well as careful operation and maintenance. Only qualified personnel should
install or operate this instrument.
Note
Alterations to the
product, including opening or improper repairs of the product, are not
permitted.
If this requirement is not observed, the CE and UKCA marks and the manufacturer's warranty
will expire.

Safety notes
2.2 Installation in hazardous areas
SITRANS WF100
6Operating Instructions, 08/2021, A5E51108132-AA
2.2 Installation in hazardous areas
Note
Nameplate
The nameplate shown is a typical example. Please check the nameplate on your device for
your specific device configuration.

Safety notes
2.2 Installation in hazardous areas
SITRANS WF100
Operating Instructions, 08/2021, A5E51108132-AA 7
Instructions specific to hazardous area installations
(Reference European ATEX Directive 2014/34/EU, Annex II, 1/0/6)
The following instructions apply to equipment covered by certificate number SIRA
11ATEX9367X, and CSAE 21UKEX9105X:
1. For use and assembly, refer to the main instructions.
2. The equipment is certified for use as Category 2D equipment and may be used in hazardous
zones 21 and 22 with dusts.
3. This equipment has a maximum surface temperature of T80 °C (in a 65 °C ambient). Refer to
the applicable code of practice for selection of this equipment with respect to specific dust
ignition temperatures.
4. The equipment is certified for use in an ambient temperature range of -40 °C to 65 °C.
5. If the conductors of the attached cable are terminated in the hazardous area, appropriate
explosion protection ('Ex') methods should be used that meet the requirements of European
Directive 2014/34/EU for Group II, Category 2D.
6. The equipment has not been assessed as a safety related device (as referred to by Directive
2014/34/EU Annex II, clause 1.5).
7. Installation and inspection of this equipment shall be carried out by suitably trained
personnel in accordance with the applicable code of practice.
8. Repair of this equipment shall be carried out by suitably trained personnel in accordance
with the applicable code of practice.
9. Components to be incorporated into or used as replacements in the equipment shall be
fitted by suitably trained personnel in accordance with the manufacturer’s documentation.
10.If the equipment is likely to come into contact with aggressive substances, then it is the
responsibility of the user to take suitable precautions that prevent it from being adversely
affected, thus ensuring that the type of protection is not compromised. Aggressive
substances: e.g. acidic liquids or gases that may attack metals or solvents that may affect
polymeric materials. Suitable precautions: e.g. regular checks as part of routine inspections
or establishing from the material’s data sheet that it is resistant to specific chemicals
Note
The flowmeter construction materials include: mild steel (polyester power coat painted) or
stainless steel, nonurethane encapsulant, and silicone rubber seals.
11.Product marking shall include the warning: Do not disassemble when an explosive dust
atmosphere is present.

Safety notes
2.2 Installation in hazardous areas
SITRANS WF100
8Operating Instructions, 08/2021, A5E51108132-AA
Conditions for safety use
•The equipment shall be installed such that the supply cable is protected from mechanical
damage. The cable shall not be subjected to tension or torque. If the cable is to be
terminated within an explosive atmosphere, then appropriate protection of the free end
of the cable shall be provided.
•The equipment shall be bonded to earth by the use of an approved type metal conduit and
conduit fittings.
•The equipment shall be supplied with an input voltage not exceeding 15 V.

SITRANS WF100
Operating Instructions, 08/2021, A5E51108132-AA 9
Description
3
SITRANS WF100 flowmeter is a low- to medium-capacity flowmeter for various product sizes,
densities, and fluidities in restricted spaces. This compact unit improves processing, increases
operating efficiency, and helps provide significant cost savings.
Operating with a microprocessor-based Siemens integrator, the Milltronics SF500 displays
flowrate, totalized flow, and alarms. Outputs are 0/4 to 20 mA proportional to rate and open
collector output for remote totalization.
Dry bulk solids enter the flowguide producing a mechanical deflection as they strike the
flowmeter sensing plate before continuing through the process unhindered. A strain gauge
load cell converts the horizontal force of the deflection into an electrical signal. The
integrator processes this to display the flowrate and integrated total weight. The process is
immune to the effect of product build-up as only horizontal force is measured.
WF100 features easy installation into standard pipe sizes, simple operation, and fast and
accurate flow response. WF100 is an accurate and repeatable force sensor and its
performance depends on consistent flow of material flow in and the quality of the
installation.

Description
SITRANS WF100
10 Operating Instructions, 08/2021, A5E51108132-AA
Components
Siemens flowmeters react to the horizontal component of force created by the impact of
material on the sensing plate. Siemens flowmeters consist of two physical components:
•the housing which includes the flowguide and the outlet: supports the sensing assembly
and guides the material flow
•the sensing assembly which includes the sensing plate and the load cell(s)
①
Load cell
②
Flowguide
③
Material
④
Outlet
⑤
Sensing plate
Note
On hazardous approved versions the load cell is
supplied with an integral cover which
must remain installed during operation