SIKA Turbotron VTM25 User manual

Please keep this operating manual for future reference.
If the device is resold, please provide the operating manual along with it.
© SIKA •Ea4900_VT25_us •06/2019 .
Turbine Flow Sensor
Series Turbotron VT...25
Types VTH25 / VTM25
Operating manual
Operating manual
.................................................. page 1 - 20

VT...25
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Table of contents page
0About this operating manual.........................................................................................3
1Device description .........................................................................................................4
1.1 Intended use................................................................................................................4
1.2 Exclusion of liability ....................................................................................................4
2Safety instructions.........................................................................................................5
3Important notes to installation and operation..............................................................6
4Installation in piping......................................................................................................7
4.1 Version brass / stainless steel with connecting adaptors (recommended kind of
installation)..................................................................................................................7
4.2 Version brass / stainless steel without connecting adaptors ....................................7
4.3 Version plastic with SIKA hose nozzles ......................................................................8
4.4 Version plastic with gluing or welding adaptors ........................................................8
4.5 Version plastic without SIKA fittings...........................................................................8
5Electrical connection.....................................................................................................9
5.1 VT...25 with pulse output.............................................................................................9
5.2 VT...25 with analog output, version AI.........................................................................9
6Replacement of turbine insert ....................................................................................10
7Cleaning the Turbotron ...............................................................................................11
8Disassembly and disposal...........................................................................................12
9Technical data .............................................................................................................13
9.1 VT...25 with pulse output...........................................................................................13
9.1.1 Hall sensor VTH output signal characteristics ....................................................14
9.2 VT...25 with analog output, version AI.......................................................................15
9.3 Materials in contact with fluid ..................................................................................16
9.4 Dimensions (selection)..............................................................................................17
Copyright notice:
The reproduction, distribution and utilization of this operating manual as well as the communication
of its contents to others without express authorization is
prohibited. Offenders will be held liable for
the payment of damages. All rights reserved in the event of the grant of a patent, utility model or
design.

VT...25 About this operating manual
Technical changes reserved - 3 -
0About this operating manual
•The operating manual is aimed at specialists and semi-skilled personnel.
•Before each step, read through the relevant advice carefully and keep to the specified
order.
•Thoroughly read and understand the information in the section “Safety instructions”.
If you have any problems or questions, please contact your supplier or contact us directly
at:
1500 S. Sylvania Ave. • Suite 111
Sturtevant • WI 53177
262 886-2695 • 262 898-0101
[e-mail] • www.sika-usa.com
Hazard signs and other symbols used:
CAUTION! Electric current!
This sign indicates dangers which could arise from handling of electric current.
WARNING! / CAUTION! Risk of injury!
This sign indicates dangers that cause personal injuries that can lead to health defects or
cause considerable damage to property.
CAUTION! Material damage!
This sign indicates actions which could lead to possible damage to material or environmental
damage.
ADHERE TO OPERATING MANUAL!
NOTICE!
This symbol indicates important notices,
tips or information.
NO DOMESTIC WASTE!
The device must not be disposed of to-
gether with domestic waste.
Pay attention to and comply with infor-
mation that is marked with this symbol.
Follow the specified instructions and steps.
Adhere to the given order.

Check the specified points or notices.
Reference to another section, document or
source.
•Item.

Device description VT...25
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1Device description
The SIKA flow sensors of the series Turbotron VT...25 are transducers for flow rate and total
flow measurement.
It has an almost unlimited application through its exceptionally compact design, its very wide
measurement range and its convincing measurement accuracy.
Flow sensor components VT...25:
1.1 Intended use
The flow sensors of the series VT...25 may only be used for flow rate measurements or dos-
ing of liquids. Never use them for gas measurements.
WARNING! No safety component!
The flow sensors of the series VT...25 are not safety components in accordance with Di-
rective 2006/42/EC (Machine Directive).
Never use the VT...25 as a safety component.
The operational safety of the device supplied is only guaranteed by intended use. The speci-
fied limits (§ 9 “Technical data”) may under no circumstances be exceeded.
Before ordering and installation, check that the material of the turbine flow monitor is suita-
ble to the medium to be measured and the application (§ 9.3 “Materials in contact with flu-
id”).
1.2 Exclusion of liability
We accept no liability for any damage or malfunctions resulting from incorrect installation,
in-appropriate use of the device or failure to follow the instructions in this operating manual.

VT...25 Safety instructions
Technical changes reserved - 5 -
2Safety instructions
Before you install the VT...25, read through this operating manual carefully. If the in-
structions contained within it are not followed, in particular the safety guidelines, this
could result in danger for people, the environment, and the device and the system it is
connected to.
The VT...25 correspond to the state-of-the-art technology. This concerns the accuracy, the
operating mode and the safe operation of the device.
In order to guarantee that the device operates safely, the operator must act competently and
be conscious of safety issues.
SIKA provides support for the use of its products either personally or via relevant literature.
The customer verifies that our product is fit for purpose based on our technical information.
The customer performs customer- and application-specific tests to ensure that the product
is suitable for the intended use. With this verification all hazards and risks are transferred to
our customers; our warranty is not valid.
Qualified personnel:
The personnel who are charged for the installation, operation and maintenance of the
VT...25 must hold a relevant qualification. This can be based on training or relevant tui-
tion.
The personnel must be aware of this operating manual and have access to it at all times.
The electrical connection should only be carried out by a fully qualified electrician.
General safety instructions:
In all work, the existing national regulations for accident prevention and safety in the
workplace must be complied with. Any internal regulations of the operator must also be
complied with, even if these are not mentioned in this manual.
Degree of protection according to EN 60529:
Ensure that the ambient conditions at the site of use does not exceed the requirements
for the stated protection rating (§ 9 “Technical data”).
Suitable measures should be taken to prevent the medium from freezing.
The flow sensors are not suitable for monitoring oils due to their materials used. The
strength of the plastic parts used would be significantly reduced.
Only use the VT...25 if it is in perfect condition. Damaged or faulty devices must be
checked without delay and, if necessary, replaced.
When fitting, connecting and removing the VT...25 use only suitable appropriate tools.
Do not remove or obliterate type plates or other markings on the device, as otherwise the
warranty is rendered null and void.
Attention:
The sensor housing is sealed and must not be opened!
If this component is opened, the fixation of the turbine system loosens and it is damaged.
Special safety instructions:
Warnings that are specifically relevant to individual operating procedures or activities can be
found at the beginning of the relevant sections of this operating manual.

Important notes to installation and operation VT...25
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3Important notes to installation and operation
CAUTION! Malfunction due to bubbles!
Gas bubbles which are also formed by cavitation in the medium can cause a malfunction
of the sensor and must be prevented.
Observe the following instructions in order to achieve highest-possible measurement accu-
racy and specified output signal:
•Before installing the turbine flow monitor flush the pipe carefully. You avoid a blocking of
the turbine caused by particles from the pipe installation.
•The installation position of the flow monitor is unreserved. If it is installed into vertical
pipes, the flow direction is preferably from below upward. You must avoid a free outlet.
•The arrow which is placed on the flow monitor () shows the only permitted flow direc-
tion.
•In order to achieve the best measurement accuracy, a straight tube in front of the flow
monitor must be retained, min 10 x Diameter. Behind the flow monitor, a straight outlet
tube of 5 x Diameter must be kept.
The internal diameter of the in- and outlet tubes must correspond with the internal di-
ameter of the flow monitor. Before and behind the stabilization tubes, the line may be
contracted or enlarged.
In practice these instructions often cannot be observed. Then the pulse rate and the
measurement accuracy can be affected.
•The flow medium to be monitored should preferably contain as few solid particles as possible.
Present particles must not exceed a diameter of 0.025 inch. If necessary, install a screen
filter!
•The material of the devices is not suitable for monitoring oils. The strength of the used
plastic parts would be considerably reduced.
•Attention:
The sensor housing is sealed and must not be opened!

VT...25 Installation in piping
Technical changes reserved - 7 -
4Installation in piping
Now you can install the flow sensor in the piping system which was prepared according to § 3.
Note:
•Use only a suitable compound for sealing.
If you seal the male thread, take care that no fibrous sealing compounds get into the
turbine (hemp or Teflon strip).
4.1 Version brass / stainless steel with connecting adaptors (recommended kind
of installation)
At first screw-in the connecting adaptors into the tube.
Now install the turbine. Make sure that the provided seals fit properly and tighten the un-
ion nuts.
4.2 Version brass / stainless steel without connecting adaptors
The turbine system fits into the Turbotron cas-
ing and is correctly positioned by the two con-
necting adaptors. If you do not want to use con-
necting adaptors, you must observe the follow-
ing instructions:
Your piping system must have a collar at the
outlet side of the Turbotron which prevents
slipping of the turbine insert.
Recommended dimensions are
Internal diameter: 0.984 - 1.024 inch
External diameter: 1.496 - 1.516 inch
When installing the Turbotron, make sure
that the seals fit properly.

Installation in piping VT...25
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4.3 Version plastic with SIKA hose nozzles
In the outlet of the Turbotron, there is a spacer. Remove it before installation of the hose
nozzle.
Push the hose nozzle with a rotational movement into the Turbotron casing. Make sure
that the O-ring is not displaced and tighten the union nut.
Put the hose nozzle into the piping and fix it with suitable means, e.g. with hose band
clips.
4.4 Version plastic with gluing or welding adaptors
Glue or weld at first the connecting adaptors to the piping.
Now install the turbine. Make sure that the provided seals fit properly and tighten the un-
ion nuts.
4.5 Version plastic without SIKA fittings
Install the Turbotron without removing the
spacer from the outlet.
Your piping system must have a collar at the
outlet side of the Turbotron which prevents
slipping of the turbine insert.
Recommended dimensions are
Internal diameter: 0.984 - 1.024 inch
External diameter: 1.496 - 1.516 inch
When installing the Turbotron, make sure
that the seals fit properly.

VT...25 Electrical connection
Technical changes reserved - 9 -
5Electrical connection
Attention: We recommend using only screened cables. Connect the shield on one side (the
wire ends) on ground.
Electrical connection with 4-pin plug M12x1:
Screw on 4-pin plug M12x1 to sleeve and tighten plug with a starting torque of max. 0.74 ft lb.
5.1 VT...25 with pulse output
The output signal of Turbotron is a flow-proportional frequency signal. The shape of the sig-
nal is a square wave and its amplitude corresponds approximately with the supply voltage. It
is an open collector signal, NPN- or PNP-switching.
The connected electronic instrument should have a loading resistance (pull-up or pull-down
resistor) of 5 kΩin the inlet.
Schematic representation:
A connection is made with three leads, the supply voltage must be connected between +U and
GND (ground), the output signal can be tapped between and GND. The color assignment of
the supply cables can be taken from the sketch on the type plate.
VTH with connecting cable: VTM with plug M12x1:
Color code: BN = brown
BK = black
BU = blue
GN = green
WH = white
R = resistor
5.2 VT...25 with analog output, version AI
Connect the wiring as shown in the circuit diagram.
Circuit diagram:

Replacement of turbine insert VT...25
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6Replacement of turbine insert
Dismount the flow sensor. The sensor housing (Hall-Effect-Sensor or inductive proximity
switch) is sealed and must not be opened.
Press the turbine insert out of the tube piece in flow direction using a flat tool.
The insert fits very tight in the tube piece. You should not use your fingers and never use
a pointed tool to press it out of the tube.
The turbine insert consists of two cylinders of different diameters which must never be
dismounted.
Push the new insert with the small diameter to the front into the pipe section against the
flow direction. Turn the insert in such a way that the webs are not directly beneath the
Hall sensor or the proximity switch. Press the insert into the pipe section up to the stop.
The position will be correct, if the face of the inserts is flush with the pipe section (applies
only for metallic version). Plastic version: push the insert up to the stop, now do the same
with the spacer. The spacer must be flush with the tube piece.
Reinstall the Turbotron in the piping. Make sure that the provided seals fit properly.

VT...25 Cleaning the Turbotron
Technical changes reserved - 11 -
7Cleaning the Turbotron
Attention:
The sensor housing is sealed and must not be opened!
To remove dirt from the flow sensor, you should flush it
with water reverse to the flow direction.
•Warning:
Blowing out the VT...25 can damage the turbine bearing.
Never blow them free with compressed air.

Disassembly and disposal VT...25
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8Disassembly and disposal
CAUTION! Risk of injury!
Never remove the device from a plant in operation.
Make sure that the plant is shut down professionally.
Before disassembly:
Prior to disassembly, ensure that
the equipment is switched off and is in a safe and de-energized state.
the equipment is depressurized and has cooled down.
Disassembly:
Remove the electrical connectors.
Remove the VT...25 using suitable tools.
Disposal:
Compliant with the Directives 2011/65/EU (RoHS) and 2012/19/EU (WEEE)*, the device must
be disposed of separately as electrical and electronic waste.
NO HOUSEHOLD WASTE!
The VT...25 consists of various different materials. It must not be disposed of with house-
hold waste.
Take the VT...25 to your local recycling plant
or
send the VT...25 back to your supplier or to SIKA.
* WEEE reg. no.: DE 25976360

VT...25 Technical data
Technical changes reserved - 13 -
9Technical data
The technical data of customized versions may differ from the data in these instructions.
Please observe the information specified on the type plate.
9.1 VT...25 with pulse output
Type VTH25 VTM25
Characteristics measurement device
Measuring range
1.1...42.2 GPM*
Accuracy
±7 % of reading (≤ 1.32 GPM)
±
5 % of reading (> 1.32 GPM)
Repeatability
±0.5 %
Signal output from
< 0.26 GPM
Sensor
Hall effect sensor
Characteristics output signal
Pulse rate / K-factor
250 pulses/gallon
Resolution
15 ml/pulse
Signal shape
Square wave signal
NPN open collector
Signal current, max.
19 mA
Pull-up-resistor
5 kΩ (recommendation)
Electrical characteristics
Supply voltage
10...30 V
DC
optional: 4.5…26.5 VDC
6.5...24 V
DC
±10%
short circuit proof and
reverse polarity protected
Current consumption
< 10 mA
Electrical connection
6.6 ft PVC cable,
screened (T
max
= 167 °F)
4-pin plug M12x1
Degree of protection
(EN 60529)
IP 54
Process variables
Medium temperature, max.
- Brass
185 °F
185 °F
- Plastic
176 °F (29 psi)
140 °F (72.5 psi)
85 °F (145 psi)
-/-
- Stainless steel
-/-
185 °F
Medium temperature, min.
32 °F, non-freezing
Ambient temperature
32…167 °F
32…185 °F
Nominal diameter
1"
Nominal pressure
145 psi
725 psi
Particle size in the medium
< 0.025"
Process connection**
G 1¼ male thread
* Not suitable for continuous operation.
** For brass / stainless steel additional fitting required.

Technical data VT...25
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9.1.1 Hall sensor VTH output signal characteristics
Temperature dependency
Closed output transistor:
Voltage limitation Load current

VT...25 Technical data
Technical changes reserved - 15 -
9.2 VT...25 with analog output, version AI
Type VTH25 VTM25
Characteristics measurement device
Measuring range
(see type plate for scaling)
0...15.8 GPM*
0...26.4 GPM*
0...42.2 GPM*
Signal output from
< 0.26 GPM
Sensor
Hall effect sensor
Characteristics analog output
Output signal
4...20 mA
Signal current
~ 26 mA
Load
max. 250 Ω
Residual ripple
0.2 mAss over the entire range
Type
3-wire, galvanic not insulated,
common GND of power supply and output signal
Electrical characteristics
Supply voltage
18...30 V DC
Current consumption
max. 30 mA
Electrical connection
4-pin plug M12x1
Degree of protection
(EN 60529)
IP 54
Process variables
Medium temperature, max.
- Brass
176 °F
176 °F
- Plastic
176 °F (29 psi)
140 °F (72.5 psi)
85 °F (145 psi)
-/-
- Stainless steel
-/-
176 °F
Medium temperature, min.
32 °F, non-freezing
Ambient temperature
32…176 °F
Nominal diameter
1"
Nominal pressure
145 psi
725 psi
Particle size in the medium
< 0.025"
Process connection** G 1¼ male thread
* Not suitable for continuous operation.
** For brass / stainless steel additional fitting required.

Technical data VT...25
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9.3 Materials in contact with fluid
Type VTH25
Brass
VTH25
Plastic PP
VTM25
Brass
VTM25
Stainless steel
Pipe section
Brass CW724R
PP
Brass CW724R
Stainless steel
1.4571
Turbine cage
PS-ST Xarec® 20 % glass fibre reinforced
Rotor
PS-ST Xarec® 20 % glass fibre reinforced
Shaft
Stainless steel 1.4539
Bearings
Sapphire / PA
Housing for Hall effect
sensor
PS-ST Xarec® 20 % glass fibre
reinforced
Brass CW602N /
CW614N
Stainless steel
1.4571
O-ring
EPDM
Screen filter (option)
associated O-ring
Stainless steel
1.4301
EPDM
-/-
Stainless steel 1.4301
EPDM
Spacer
-/-
PP
-/-
-/-
Plastic parts of VTH25 brass / stainless steel comply with KTW-guidance or the Elastomer Guideline
of the German Federal Environmental Agency.

VT...25 Technical data
Technical changes reserved - 17 -
9.4 Dimensions (selection)
VTH 25 MS-180 with connecting adaptor
VTM 25 MS-180 VTM 25 VA-180 VTH 25 K6-180

Technical data VT...25
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VT…25 with analog output, version AI

VT...25
Technical changes reserved - 19 -

© SIKA •Ea4900_VT25_us •06/2019
SIKA USA Inc.
1500 S. Sylvania Ave.
• Suite 111
Sturtevant
WI 53177
Tel:
262 886-2695
Fax:
262 898-0101
info
@sika-usa.com
www.sika
-usa.com