ABB Sensyflow FMT400-VTS Training manual

CI/FMT400-VTS/VTCS-EN Sensyflow FMT400-VTS, FMT400-VTCS
Commissioning Instructions
Thermal Mass Flowmeter
Sensyflow FMT400-VTS, FMT400-VTCS


CI/FMT400-VTS/VTCS-EN Sensyflow FMT400-VTS, FMT400-VTCS EN - 1
Neu
Thermal Mass Flowmeter
Sensyflow FMT400-VTS, FMT400-VTCS
Commissioning Instruction - EN
CI/FMT400-VTS/VTCS-EN
07.2017
Rev. B
Original instruction
Manufacturer:
ABB Automation Products GmbH
Measurement & Analytics
Dransfelder Straße 2
D-37079 Göttingen
Germany
Tel.: [phone]
Fax: [phone]
Customer service center
Phone: [phone]
Fax: [phone]-29031
[email protected]
© Copyright 2017 by ABB Automation Products GmbH
Subject to changes without notice
This document is protected by copyright. It assists the user in safe and efficient operation of the device. The contents of this
document, whether whole or in part, may not be copied or reproduced without prior approval by the copyright holder.
Contents

Contents 
2 - EN Sensyflow FMT400-VTS, FMT400-VTCS CI/FMT400-VTS/VTCS-EN
1Safety....................................................................................................................................................................3
1.1General information and notes for the reader ................................................................................................3
1.2Intended use...................................................................................................................................................3
1.2.1General information.................................................................................................................................4
1.2.2Installing / Disassembling pipe components ...........................................................................................5
1.2.3Installing / Disassembling the flowmeter sensor.....................................................................................5
1.3Target groups and qualifications ....................................................................................................................5
1.4Plates and symbols ........................................................................................................................................6
1.4.1Safety- / warning symbols, note symbols................................................................................................6
1.5Name plate .....................................................................................................................................................7
1.6Safety instructions for electrical installation ...................................................................................................7
1.6.1Safety instructions for operation .............................................................................................................7
1.7Returning devices...........................................................................................................................................8
1.8Integrated management system.....................................................................................................................8
1.9Disposal..........................................................................................................................................................9
1.9.1Information on WEEE Directive 2012/19/EU (Waste Electrical and Electronic Equipment)...................9
2Use in potentially explosive atmospheres........................................................................................................9
3Design and function ..........................................................................................................................................10
4Mounting ............................................................................................................................................................11
4.1Recommended steadying lengths according to DIN EN ISO 5167-1 ..........................................................11
4.2Installing the flowmeter sensor and pipe components .................................................................................12
4.3Weld-on adapter for Sensyflow FMT400-VTS .............................................................................................13
4.4Weld-on adapter with ball valve for Sensyflow FMT400-VTS......................................................................15
4.5Integrated hot tap fitting for Sensyflow FMT400-VTS ..................................................................................17
4.5.1Specifications for integrated hot tap fittings ..........................................................................................18
4.5.2Installing the wafer version....................................................................................................................18
4.5.3Installing the weld-in version .................................................................................................................19
4.5.4Installing the transmitter during actual operation ..................................................................................20
4.5.5Disassembling the transmitter during actual operation.........................................................................22
5Electrical connections ......................................................................................................................................23
6Commissioning..................................................................................................................................................24
6.1Checking the installation ..............................................................................................................................24
6.2Connecting the power supply.......................................................................................................................24
6.3Switching on .................................................................................................................................................24
7Parameterization................................................................................................................................................25
8Error messages .................................................................................................................................................25
9Appendix ............................................................................................................................................................26
9.1Decommissioning and packaging ................................................................................................................26
9.2Approvals and certifications .........................................................................................................................26

Safety
CI/FMT400-VTS/VTCS-EN Sensyflow FMT400-VTS, FMT400-VTCS EN - 3
1 Safety
1.1 General information and notes for the reader
You must read these instructions carefully prior to installing and commissioning the device.
These instructions are an important part of the product and must be kept for future reference.
These instructions are intended as an overview and do not contain detailed information on all
designs for this product or every possible aspect of installation, operation and maintenance.
For additional information or if specific problems occur that are not discussed in these
instructions, contact the manufacturer.
The content of these instructions is neither part of any previous or existing agreement, promise
or legal relationship nor is it intended to change the same.
This product is built based on state-of-the-art technology and is operationally safe. It has been
tested and left the factory in perfect working order from a safety perspective. The information in
the manual must be observed and followed in order to maintain this state throughout the period
of operation.
Modifications and repairs to the product may only be performed if expressly permitted by these
instructions.
Only by observing all of the safety instructions and all safety/warning symbols in these
instructions can optimum protection of both personnel and the environment, as well as safe and
fault-free operation of the device, be ensured.
Information and symbols directly on the product must be observed. They may not be removed
and must be fully legible at all times.
1.2 Intended use
Mass flow measurement of gases and gas mixtures in closed pipelines.
Can be used:
- As a plug-in sensor flanged into the pipe component in pipelines with nominal diameters
DN 25 ... DN 200 (1 ... 8"),
- Via a weld-on adapter directly in pipelines of nominal diameter DN 100 (4") and above, as
well as for non-circular cross-sections.
WARNING
These devices are not permitted for use in zone 0 or zone 1 potentially explosive
atmospheres.
Sensyflow FMT400-VTS is available in a version suitable for use in zone 2/22.
The device is designed for use exclusively within the stated values on the name plate and in the
technical specifications. (see data sheet, chapter “Technical data”)

Safety 
4 - EN Sensyflow FMT400-VTS, FMT400-VTCS CI/FMT400-VTS/VTCS-EN
1.2.1 General information
• The device (including the pipe components) has been designed, produced and approved in
accordance with Pressure Equipment Directive 2014/68/EU. The pipe components take the
form of a
- Wafer design
- Flange design with integrated measuring section
- Weld-on adapter
The device may only be used in accordance with the application specified on the order
confirmation; other operating conditions may prevent the device from functioning correctly,
cause damage to it or even damage it beyond repair.
• Care must be taken to ensure that the measuring media used do not impair the chemical and
physical properties of the components that come into contact with the fluids concerned.
• The threshold value for alternating load cycles corresponds to AD-2000 instruction sheet S1,
Section 1.4 and is not calculated or checked by the manufacturer.
• The device should be included in any regular maintenance activities that are carried out on
the entire system.
• The materials used must be checked by the user to ensure their suitability for the application
concerned.
• The maximum operating conditions relating to pressure and temperature, as stated on the
name plate / in the operating instructions, must not be exceeded.
• When installing and disassembling pipe components or flowmeter sensors, ensure that the
pipeline has been depressurized.
- Exception: If you are using a hot tap fitting.
• Before carrying out installation work on pipelines used to carry aggressive or toxic measuring
media, media that may be classed as irritant, or other kinds of hazardous media, the fluids
concerned must be adequately flushed out. Compliance with the relevant accident
prevention regulations must also be ensured.
• If damaged, components must no longer be used. They must be taken out of circulation and
sent to the manufacturer for repair.
• If disassembled components have come into contact with aggressive or toxic measuring
media, media that may be classed as irritant, or other kinds of hazardous media, before
being sent off they must be cleaned and then packed and labeled accordingly.
• If leaks occur at the measuring point, it must immediately be taken out of service.
• Defective gaskets or O-rings must be removed from use and must be replaced as a matter of
urgency.
• The subsequent mechanical labeling or machining of pipe components and flowmeter
sensors can result in damage and is prohibited.
- Exception: Cutting to length and welding onto the pipeline in the case of weld-on
adapters.

Safety
CI/FMT400-VTS/VTCS-EN Sensyflow FMT400-VTS, FMT400-VTCS EN - 5
1.2.2 Installing / Disassembling pipe components
• During installation, it is important to ensure that the flow direction corresponds to the
attached label.
• When welding the weld-on adapter, remember to observe the relevant welding instructions.
The amount of heat introduced must be kept to an absolute minimum to prevent warping of
the mounting flange's sealing surface.
• In the case of flanged connections, flat gaskets must be installed. These must be in perfect
condition and resistant to the measuring media.
• Before installing pipe components or flowmeter sensors, check all components and gaskets
for damage.
• Pipe components must not be installed under tension, otherwise the pipeline may be
subjected to impermissible forces.
• When assembling the flanged connections, use screws that offer the required strength and
dimensions.
• The screws must be tightened evenly and to the required torque.
• Once the pipe components have been installed, the insertion connection must be sealed by
means of a blind flange plus gasket or by closing a shut-off device (if present).
1.2.3 Installing / Disassembling the flowmeter sensor
• Installation in the pipe component or weld-on adapter is only possible if the flowmeter sensor
data matches the measuring point specifications.
• It is very important to use the O-ring supplied (not a flat gasket). This is resistant to
measuring media and should be inserted in the groove provided in the pipe component
flange.
• Take care not to damage the measuring elements when inserting the flowmeter sensor into
the pipe component, as this is not permitted.
• The flowmeter sensor should be firmly bolted together with the flange of the insertion
connection. The screws must be tightened evenly to the required torque.
• Torque for screws supplied: 87 Nm (unlubricated, without using spring washers).
• If you are using a pipe component with a hot tap fitting, you must check that the hot tap fitting
is in the disassembly position before releasing the mounting screws.
1.3 Target groups and qualifications
Installation, commissioning, and maintenance of the product may only be performed by trained
specialist personnel who have been authorized by the plant operator to do so. The specialist
personnel must have read and understood the manual and comply with its instructions.
Prior to using corrosive and abrasive materials for measurement purposes, the operator must
check the level of resistance of all parts coming into contact with the materials to be measured.
ABB Automation Products GmbH will gladly support you in selecting the materials, but cannot
accept any liability in doing so.
The operators must strictly observe the applicable national regulations with regards to
installation, function tests, repairs, and maintenance of electrical products.

Safety 
6 - EN Sensyflow FMT400-VTS, FMT400-VTCS CI/FMT400-VTS/VTCS-EN
1.4 Plates and symbols
1.4.1 Safety- / warning symbols, note symbols
DANGER – <Serious damage to health / risk to life>
This symbol in conjunction with the signal word "Danger" indicates an imminent danger.
Failure to observe this safety information will result in death or severe injury.
DANGER – <Serious damage to health / risk to life>
This symbol in conjunction with the signal word "Danger" indicates an imminent electrical
hazard. Failure to observe this safety information will result in death or severe injury.
WARNING – <Bodily injury>
This symbol in conjunction with the signal word “Warning“ indicates a possibly dangerous
situation. Failure to observe this safety information may result in death or severe injury.
WARNING – <Bodily injury>
This symbol in conjunction with the signal word "Warning" indicates a potential electrical
hazard. Failure to observe this safety information may result in death or severe injury.
CAUTION – <Minor injury>
This symbol in conjunction with the signal word “Caution“ indicates a possibly dangerous
situation. Failure to observe this safety information may result in minor or moderate injury.
This may also be used for property damage warnings.
NOTICE – <Property damage>!
The symbol indicates a potentially damaging situation.
Failure to observe this safety information may result in damage to or destruction of the product
and/or other system components.
IMPORTANT (NOTE)
This symbol indicates operator tips, particularly useful information, or important information
about the product or its further uses. It does not indicate a dangerous or damaging situation.

Safety
CI/FMT400-VTS/VTCS-EN Sensyflow FMT400-VTS, FMT400-VTCS EN - 7
1.5 Name plate
G01001-01
3
2
1
4
5
6
7
8
9
10
Fig. 1
1Manufacturer
2Serial number
3Serial number
4ID number (internal calibration number)
5Explosion protection labeling, e.g., ATEX
6Year of manufacture, country of manufacture
7Model name
8Power supply
9Permissible ambient temperature
10Measured medium temperature
1.6 Safety instructions for electrical installation
The electrical connection may only be made by authorized specialist personnel according to the
electrical plans.
The electrical connection information in the manual must be observed; otherwise, the electrical
protection type may be adversely affected.
Ground the measurement system according to requirements.
1.6.1 Safety instructions for operation
WARNING
Touching the surface can lead to burns if the measuring media are hot.
This can result in severe injuries or death.
Do not touch.
WARNING
If the measuring medium is allowed to escape in an uncontrolled manner, this can result in
severe injuries or death.
Check pipelines and gaskets on a regular basis.
WARNING
Toavoiddamagetothesensors,thedevicemustbeswitchedoffforCIPcleaning.

Safety 
8 - EN Sensyflow FMT400-VTS, FMT400-VTCS CI/FMT400-VTS/VTCS-EN
1.7 Returning devices
Use the original packaging or a secure transport container of an appropriate type if you need to
return the device for repair or recalibration purposes. Fill out the return form (see the Appendix)
and include this with the device.
The EU Directive governing hazardous materials dictates that the owners of any hazardous
waste are also responsible for disposing of it.
All devices delivered to the manufacturer must be free from any hazardous materials (acids,
alkalis, solvents, etc.).
Pipe components and flowmeter sensors contain hollow spaces. If they have been used in
conjunction with hazardous materials, they must therefore be rinsed out in order to neutralize
any such substances.
The owner will be charged for any costs incurred as a result of the device not having been
adequately cleaned or of any failure to dispose of hazardous materials. The manufacturer
reserves the right to return a contaminated device.
Please
Please contact Customer Center Service acc. to page 1 for nearest service location.
1.8 Integrated management system
ABB Automation Products GmbH operates an integrated management system, consisting of:
• Quality management system to ISO 9001
• Environmental management system to ISO 14001
• Occupational health and safety management system to BS OHSAS 18001 and
• Data and information protection management system
Environmental awareness is an important part of our company policy.
Our products and solutions are intended to have a minimal impact on the environment and on
people during manufacturing, storage, transport, use, and disposal.
This includes the environmentally-friendly use of natural resources. We conducts an open
dialog with the public through our publications.

Use in potentially explosive atmospheres
CI/FMT400-VTS/VTCS-EN Sensyflow FMT400-VTS, FMT400-VTCS EN - 9
1.9 Disposal
This product is manufactured from materials that can be reused by specialist recycling
companies.
1.9.1 Information on WEEE Directive 2012/19/EU (Waste Electrical and Electronic Equipment)
This product is not subject to WEEE Directive 2012/19/EU or relevant national laws
(e.g., ElektroG in Germany).
The product must be disposed of at a specialist recycling facility. Do not use municipal garbage
collection points. According to the WEEE Directive 2012/19/EU, only products used in private
applications may be disposed of at municipal garbage facilities. Proper disposal prevents
negative effects on people and the environment, and supports the reuse of valuable raw
materials.
If it is not possible to dispose of old equipment properly, ABB Service can accept and dispose of
returns for a fee.
2 Use in potentially explosive atmospheres
The device is available in a hazardous area design for zone 2 and zone 22 and is supplied with
a manufacturer's declaration in accordance with ATEX. When operating these devices in the
approved range, only the data and information contained in this manufacturer's declaration shall
apply (see Appendix).
WARNING - General risks!
It is not permitted to use the devices in zone 1 / 21 or in zone 0 / 20.

Design and function 
10 - EN Sensyflow FMT400-VTS, FMT400-VTCS CI/FMT400-VTS/VTCS-EN
3 Design and function
Process version Hygienic version
2
2
3
3
Type 1 pipe component in wafer
design
DN 40 ... DN 200 / ASME 1 1/2 ... 8"
Integrated hot tap fitting in wafer
design
DN 50 ... DN 200 / ASME 2 ... 8"
Pipe component in hygienic version with
threaded pipe connections S in accordance
with DIN 11851
DN 25, 40, 50, 80 / ASME 1", 1 1/2", 2", 3"
G01000
1
1
1
Type 2 pipe component as a measuring section
DN 25 ... DN 80 / ASME 1 ... 2"
Weld-on adapter
DN 100 / ASME 4" and above
Weld-on adapter with ball valve
DN 100 / ASME 4" and above
Fig. 2
1Centering pin, outflow side
2Flowmeter sensor FMT400-VTS_VTCS
3Transmitter

Mounting
CI/FMT400-VTS/VTCS-EN Sensyflow FMT400-VTS, FMT400-VTCS EN - 11
4 Mounting
4.1 Recommended steadying lengths according to DIN EN ISO 5167-1
G00805
XD×5D×
G00806
< 7°
Expansion
X = 15
< 7°
G00807
Reducer
X = 15
G00808
90° elbow
X = 20
G00809
Two 90° elbow
in one level
X = 25
G00810
Two 90°elbow
in two levels
X = 40
G00811
Valve / slide
X = 50
Change from one to two colu mns
To achieve the stated measuring accuracy, the steadying lengths
seen above must be provided. For combinations of inlet run dist-
urbances, e. g. valve and reducer, you must always consider the
longer inlet run length. In confined spaces at the mounting location the
outlet run length can be shortened to 3 x D. The reduction of the
minimum inlet run length, however, will impact on the achievable
accuracy.
High repeatability of the measuring value is still provided. Under
certain circumstances, special calibration can be performed for insuf-
ficient steadying lengths. For this purpose and in individual cases
consulting is necessary.
For gases with extremely low density (hydrogen, helium) the stead-
ying lengths must be doubled.
Change from one to two colu mns

Mounting 
12 - EN Sensyflow FMT400-VTS, FMT400-VTCS CI/FMT400-VTS/VTCS-EN
4.2 Installing the flowmeter sensor and pipe components
Pipe components can be supplied in a wafer design (type 1) or as a measuring section (type 2)
(see Fig. 2) and should be installed stress-free (without torsion / bending stress) in the pipeline
along with the appropriate gaskets.
Gaskets must not alter the cross-section of the opening in the pipeline and must ensure
complete tightness once the flowmeter sensor and pipe component have been installed. It must
be ensured that the gaskets are compatible with the measured medium and the associated
temperature.
In the case of the type 1 pipe component (wafer design), care must be taken to ensure centered
installation. The internal diameters of the pipe and flange must match exactly. Any differences in
levels or edges, or untidy weld seams, will reduce the measuring accuracy.
Installation is described using the example of a pipe component of type 1 with the wafer design.
The description also applies to a type 2 pipe component and the weld-on adapters.
The flow direction must correspond to the arrow indicated on the pipe component. The
centering pin on the pipe component / weld-on adapter must be located on the outflow side
(behind the measuring point).
G00793
2
1
5
4
3
Fig. 3: Schematic representation of type 1 pipe component with wafer design
1Centering pin, outflow side
2Flowmeter sensor FMT400-VTS
3Transmitter
4O-ring
5Type 1 pipe component
with wafer design
DN 40 .... DN 200 (ASME 1 1/2 ... 8")

Mounting
CI/FMT400-VTS/VTCS-EN Sensyflow FMT400-VTS, FMT400-VTCS EN - 13
Installing the flowmeter sensor
1.Insert the O-ring (55 x 3 mm [2.16 x 0.12 inches]) supplied into the groove provided for this
purpose.
2.Push the flowmeter sensor into the adapter and screw into place.
3.All flange screws must be installed properly.
Before disassembling the flowmeter sensor, ensure that the pipeline has been depressurized.
WARNING
If you attempt to install / disassemble the flowmeter sensor at an absolute pressure of more
than 1.1 bar, it could fly out, resulting in severe injuries or death.
Use the integrated hot tap fitting.
WARNING
Attempting the installation / disassembly process at high temperatures or when using
hazardous gases can result in severe injuries or death.
Use the integrated hot tap fitting.
IMPORTANT (NOTE)
In the case of the type 1 pipe component (wafer design) with ball valve, flowmeter sensors
with a length of 425 mm (16.73 inches) must be used for nominal diameters of DN 125, DN
150, and DN 200 / ASME 6" and ASME 8".
4.3 Weld-on adapter for Sensyflow FMT400-VTS
If you are installing the flowmeter sensor in larger nominal diameters or non-circular cable cross
sections, you must observe the following points when attaching the weld-on adapter to the
pipeline:
1The length of the weld-on adapter must be equal to L once it has been welded on
(see Figures 7 and 8)
L = h – 1/2 x Ø Dexternal where h = 263 mm (10.35 inches), 425 mm (16.73 inches) or
775 mm (30.51 inches) (flowmeter sensor lengths)
- Shorten the length of the weld-on adapter as appropriate before welding it on. Once it has
been welded on, the weld-on adapter may extend into the pipeline by several mm
(max. 10 mm [0.39 inches]).
- Observe thickness of pipeline wall and degree of shrinkage when welding on.
- The distance h from the upper edge of the adapter flange to the the pipe central axis
must be within a tolerance of ± 2 mm (0.08 inches).
2It is essential to maintain a right angle to the pipe axis (max. tolerance: 2°).
3The adapter centering pin must be aligned with the pipe axis in the flow direction (outflow
side, behind the measuring point).
4Once welding is complete, there must be a passage of at least 28 mm (1.10 inches) free for
the purpose of mounting the flowmeter sensor; drill to create if necessary.
5Installing the flowmeter sensor:
- Insert the O-ring (55 x 3 mm [2.16 x 0.12 inches]) supplied into the groove provided for
this purpose.
- Push the flowmeter sensor into the adapter and screw into place.

Mounting 
14 - EN Sensyflow FMT400-VTS, FMT400-VTCS CI/FMT400-VTS/VTCS-EN
G00802
min. 28 (1,10)
h
L
Ø 33,7 (1,33)
450 (17,72)
Ød
ØD
2
3
1
1
←Direction of flow
Fig. 4: Dimensions in mm (inch)
1Centering pin
2Sealing ring groove
3Connection flange DN 25 (1”)
DOuter pipe diameter
Flowmeter sensor length h
in mm (inch)
Outer pipe diameter min. / max.
in mm (inch)
263 (10.35) 100 ... 350 (3.94 ... 13.78)
425 (16.73) > 350 ... 700 (13.78 ... 27.56)
775 (30.51) > 700 ... 1400 (27.56 ... 55.12)1)
1) This maximum pipe diameter specification is only valid when installing the sensor unit centrically in the pipe.
For larger diameters or angular ducts a non-centric sensor position is taken into account for calibration.
IMPORTANT (NOTE)
Deviations from the stated dimension and position tolerances cause additional measuring
uncertainty.

Mounting
CI/FMT400-VTS/VTCS-EN Sensyflow FMT400-VTS, FMT400-VTCS EN - 15
4.4 Weld-on adapter with ball valve for Sensyflow FMT400-VTS
Versions featuring a ball valve enable the flowmeter sensor to be installed and disassembled at
low gauge pressures in the pipeline with minimal gas leakage.
Install the weld-on adapter as described in Section 4.3.
WARNING
During welding, the gaskets in the ball valve may overheat.
This can lead to the measuring medium escaping in an uncontrolled manner.
This can result in severe injuries or death.
Disassemble the ball valve prior to welding.
Before the flowmeter sensor is installed, the ball valve must be opened completely. Then, the
flowmeter sensor can be installed along with the appropriate gasket and screwed into place.
Before disassembling the flowmeter sensor, ensure that the pipeline has been depressurized.
Then, you can release the screws on the flange, remove the flowmeter sensor and close the
ball valve.
NOTICE - Potential damage to parts!
Closing the ball valve before you remove the flowmeter sensor can seriously damage the
protective cage or the sensor elements.
Do not close the ball valve until the flowmeter sensor has been removed.

Mounting 
16 - EN Sensyflow FMT400-VTS, FMT400-VTCS CI/FMT400-VTS/VTCS-EN
G00803
540 (21,26)
Ø 48,3 (1,90)
h
L
min. 28 (1,10)
Ød
ØD
2
13
1
←Direction of flow
Fig. 5: Dimensions in mm (inch)
1Centering pin
2Sealing ring groove
3Connection flange DN 25 (1”)
D Outer pipe diameter
Flowmeter sensor length h
in mm (inch)
Outer pipe diameter min. / max.
in mm (inch)
263 (10.35) 100 ... 150 (3.94 ... 5.91)
425 (16.73) > 150 ... 500 (5.91 ... 19.69)
775 (30.51) > 500 ... 1150 (19.69 ... 45.28)1)
1) This maximum pipe diameter specification is only valid when installing the sensor unit centrically in the pipe.
For larger diameters or angular ducts a non-centric sensor position is taken into account for calibration.
IMPORTANT (NOTE)
Deviations from the stated dimension and position tolerances cause additional measuring
uncertainty.

Mounting
CI/FMT400-VTS/VTCS-EN Sensyflow FMT400-VTS, FMT400-VTCS EN - 17
4.5 Integrated hot tap fitting for Sensyflow FMT400-VTS
Water flange version – sensor unit in exchange position Weld-in version – sensor unit in measuring position
G00812
h = 425 (16,73)
50 (1,97)
Ø 50 (1,97)
Hub stroke / mm
20
10
30
40
0 - CLOSE - ZU
50 - OPEN - MESSEN
1
2
3
4
5
6
Fig. 6: Dimensions in mm (inch)
1Covers for DN 25 flange
2Spigot nur
3Bottom edge of spigot nut
4Display of sensor unit position, 50 mm (1,97“) stroke
5Sealing ring
6Sensor elements
Flowmeter sensor length h
Water flange version Weld-in version
h = 263 mm (10.35“)
for DN 50, DN 65 and DN 80 / 2“, 3“
h = 425 mm (16.73“)
for DN 100, DN 125, DN 150 and DN 200 / 4“, 6“, 8“
h = always 425 mm (16.73“)
If you want to be able to remove the sensor during actual operation without gas escaping, the
integrated hot tap fitting should be used instead of the pipe components and weld-on adapter.
We recommend that it is installed in main lines (e.g., compressed air supply), at measuring
points that need to be flushed out before disassembling the sensor or, more generally, in the
case of measurements that make it necessary to shut off system components before removing
the sensor.

Mounting 
18 - EN Sensyflow FMT400-VTS, FMT400-VTCS CI/FMT400-VTS/VTCS-EN
4.5.1 Specifications for integrated hot tap fittings
The hot tap fitting is designed for pressure loads of max. 16 bar abs. To ensure
interchangeability with standard pipe components (type 1), the wafer version (Fig. 8) has been
developed for DN 50 and DN 80 DIN flanges with a pressure stage of PN 40. In the case of the
DN 65 version with a pressure stage of PN 16, you should use connection flanges with 4 screw
holes. Imperial versions 2 ... 8“ designed for connection flange ASME B16.5 Cl.150 only. For
suitable flowmeter sensor lengths, see Fig. 6.
G00815
0
2
4
6
8
10
12
14
16
18
0 (32) 50 (122) 100 (212) 150 (302) 200 (392) 250 (482)
T [°C] (°F)
0
29
58
87
116
145
174
203
232
261
p [psi]
p [bar]
Temperature: Max. 200 °C (392 °F)
Pressure (abs):
16 bar - 90 °C (232 psi - 194 °F)
1 bar - 200 °C (14.5 psi - 392 °F)
Fig. 7: Maximum pressure / temperature values for integrated hot tap fitting
4.5.2 Installing the wafer version
Fig. 8 (left) shows the installed wafer version of the hot tap fitting in the disassembly position.
The guide tube is in its upper end position and seals the Sensyflow opening (right).
By means of the flat gaskets, the hot tap fitting is sealed on both sides against the mounting
flange of the pipeline. To ensure maximum measurement accuracy, it must be centered exactly
between the flanges (see Fig. 3). It is very important that you observe the proper flow direction
(arrow on pipe component).
G00851
1
Fig. 8: Hot tap fitting in disassembly position
1Sensyflow opening