Kobold SMV User manual

Operating Instructions
for
Flow Meter / Monitor
Model: SMV

SMV
page 2 SMV K18/0322
1. Contents
1.Contents ........................................................................................................ 2
2.Note .............................................................................................................. 3
3.Instrument Inspection .................................................................................... 3
4.Regulation Use ............................................................................................. 4
5.Operating Principle ........................................................................................ 5
5.1.SMV ..................................................................................................... 5
5.2.SMV-..21H and SMV-..22H .................................................................. 6
6.Mechanical Connection ................................................................................. 6
7.Electrical Connection .................................................................................... 7
7.1.SMV-1... and SMV-3... with Plug Connection ...................................... 7
7.2.Note for Reed contacts ........................................................................ 7
7.3.Example for Contact Protective Measures ........................................... 7
8.Use in hazardous area .................................................................................. 8
8.1.Statement an apparatus not containing an own potential ignition
source .................................................................................................. 8
8.2.ATEX contact ...F0... (not for SMV-...21H/...22H) ................................ 9
8.3.ATEX reed contact 41R57** ............................................................... 9
9.Operation .................................................................................................... 16
10.Maintenance ............................................................................................... 17
11.Technical Information .................................................................................. 18
12.Order Codes ............................................................................................... 20
13.Recommended Spare Parts ........................................................................ 22
14.Dimensions ................................................................................................. 23
14.1.SMV ................................................................................................... 23
14.2.SMV-...21H/...22H .............................................................................. 24
15.EU Declaration of Conformance (SMV) ...................................................... 27
16.UK Declaration of Conformity (SMV) ........................................................... 28
17.EU Declaration of conformance (Reed contact 41R57**) ............................ 29
18.Statement of conformity reed contact 41R57** ........................................... 30
19.Declaration of the Manufacturer (F0) .......................................................... 34
20.Ex-Type Examination Certificate Magnetic reed switch (F0) ....................... 35
21.IECEx certificate (F0) .................................................................................. 38
Manufactured and sold by:
Kobold Messring GmbH
Nordring 22-24
D-65719 Hofheim
Tel.: [phone]
Fax: [phone]
E-Mail: [email protected]
Internet: www.kobold.com

SMV
SMV K18/0322 page 3
2. Note
Please read these operating instructions before unpacking and putting the unit
into operation. Follow the instructions precisely as described herein.
The instruction manuals on our website www.kobold.com are always for currently
manufactured version of our products. Due to technical changes, the instruction
manuals available online may not always correspond to the product version you
have purchased. If you need an instruction manual that corresponds to the
purchased product version, you can request it from us free of charge by email
([email protected]) in PDF format, specifying the relevant invoice number and
serial number. If you wish, the operating instructions can also be sent to you by
post in paper form against an applicable postage fee.
The devices are only to be used, maintained and serviced by persons familiar
with these operating instructions and in accordance with local regulations
applying to Health & Safety and prevention of accidents.
When used in machines, the measuring unit SMV should be used only when the
machines fulfil the EC-machine guidelines.
as per PED 2014/68/EU
In acc. with Article 4 Paragraph (3), "Sound Engineering Practice", of the PED
2014/68/EU no CE mark.
Pipe
Table 8
Group 1
dangerous fluids
Table 9
Group 2
no dangerous fluids
SMV, 1/4" - 1" Art. 4, § 3 Art. 4, § 3
SMV, brass, 1 1/4" not deliverable Art. 4, § 3
SMV, stainless steel, 1 1/4" Cat. II Art. 4, § 3
3. Instrument Inspection
Instruments are inspected before shipping and sent out in perfect condition.
Should damage to a device be visible, we recommend a thorough inspection of
the delivery packaging. In case of damage, please inform your parcel service /
forwarding agent immediately, since they are responsible for damages during
transit.
Scope of delivery:
The standard delivery includes:
 Flow Meter / Monitor model: SMV

SMV
page 4 SMV K18/0322
4. Regulation Use
Series SMV instruments are used for measuring and monitoring liquids. Only
clean, low viscosity and homogeneous media may be measured, against which
the used materials are resistant. On higher viscous media large measuring errors
may occur particularly. Large dirt particles may lead to blocking of the float and
therefore large measurement and signal errors. Ferrite particles that stick to the
float body (with internal magnet) may also lead to a similar effect. (We
recommend a magnet filter).
The instruments are provided as follows:
Flow Measurement
The actual flow may be taken locally from the pointer indication, which is mounted
at the side of the housing. The scale shows the flow rate directly in litres per
minute of water.
Limit Value Contacts (only model SMV-1.. and SMV-3..)
For the monitoring of the flow rate, the instruments may be fitted with one or two
adjustable limit value contacts.
Type of contact:
 N/O contact (standard)
 Changeover contact (standard)
 N/O contact (cCSAus)
 Changeover contact (cCSAus)
The contact is adjustable over the full measuring range by taking the hysteresis
into consideration.

SMV
SMV K18/0322 page 5
5. Operating Principle
5.1. SMV
The KOBOLD Flow Meters and Switches model SMV-...
are based on the principle of the well-known float-type
flow meters except for the conventional tapering
measuring tube.
These patented instruments are provided instead with a
cylindrical flow tube with conical slots around the
periphery. This eliminates the usual problems of guiding
the cylindrical float within a tapering measuring glass.
The novel design including the provision of an
appropriately dimensioned annular gap of constant
width between the float and the flow tube has enabled
the sensitivity to dirt to be considerably reduced.
The float comprises permanent magnets actuating a
bistable reed contact external to the flow circuit, that is,
the flowing medium is hermetically separated from the
electrical contact. In addition, it is embedded in a height-
adjustable switch housing thus ensuring that the contact
cannot be damaged even by an aggressive atmosphere.
As the medium enters the instrument the float rises. Once its magnetic field
reaches the contact tips of the reed switch the contact closes. As the flow
increases the float rises further until it reaches its stop. This prevents the float
from going beyond the contact range of the magnetic operating tube, that is, the
contact remains closed thus ensuring bistable switching.
With the models SMV-2... and SMV-3... the magnetic field also activates an
external, that is, hermetically separated indicator, as a result of which flows are
measured accurately even at high operating pressures.
The magnetic field and the indicator are designed so as to ensure that the pointer
follows even abrupt changes in flow rate.

SMV
page 6 SMV K18/0322
5.2. SMV-..21H and SMV-..22H
KOBOLD flow meters and -switches series SMV-...21H and SMV-...22H are
equipped with a spring-loaded float which is guided within a cylindrical measuring
pipe and in opposite to the principals known up to now it is hollow. The medium
flows through a circular clearance, which is built by the bore of the float and the
mandrel bar (conical shaft) inside.
The float comprises permanent magnets actuating a bistable reed contact
external to the flow circuit, that is, the flowing medium is hermetically separated
from the electrical contact. In addition, it is embedded in a height-adjustable
switch housing thus ensuring that even an aggressive atmosphere cannot
damage the contact.
As the medium enters the instrument the float rises. Once the magnetic field
reaches the contact tips of the reed switch the contact closes. As the flow
increases the float rises further until it reaches its stop. This prevents the float
from going beyond the contact range of the magnetic operating tube, that is, the
contact remains closed thus ensuring bistable switching.
With the models SMV-2... and SMV-3... the magnetic field also activates an
external, that is, hermetically separated indicator, as a result of which flows are
measured accurately even at high operating pressures.
The magnetic field and the indicator are designed so as to ensure that the pointer
follows even abrupt changes in flow rate.
6. Mechanical Connection
Before installation:
 Make sure that the permitted max. operating pressure
and temperature ratings are not exceeded.
 The installation of the unit takes place vertically in the
pipe. Flow direction is from bottom to top (according
the arrow).
 Remove all the transport safety locks and ensure that
no packing material particles remain inside the unit.
 The sealing of connection joints can be realised
through Teflon tape or similar material.
 The units may not be installed within the influence of
an inductive field.
 If possible, after the mechanical installation, the
sealing of connection joints/pipes should be checked.

SMV
SMV K18/0322 page 7
7. Electrical Connection
7.1. SMV-1... and SMV-3... with Plug Connection
 Make sure that the supply wires are de-energized.
 Loosen the holding screw of the plug and pull out the cap
from the socket.
 Make connection inside the plug-cap according to the
wiring diagram.
 If the contact has not been adjusted yet, it would be
appropriate to do so at this point.
(see section 9 Operation)
 Push on the plug to the socket, by using the locking screw.
(see section 9 Operation).
7.2. Note for Reed contacts
Attention! The given electrical specifications of reed switches may
never be exceeded, even for a short time. For higher switching
capacities we recommend the use of contact protection relays or
any other contact protection device.
 After your designated external units are connected to the limit contact and
adjustment of desired switching points is accomplished, then all the work
regarding connections is finished.
 The unit can now be set in operation.
7.3. Example for Contact Protective Measures
For capacitive and inductive loads (long conductors and relay/protection) we
recommend the following protective schemes.

SMV
page 8 SMV K18/0322
8. Use in hazardous area
8.1. Statement an apparatus not containing an own potential
ignition source

SMV
SMV K18/0322 page 9
8.2. ATEX contact ...F0... (not for SMV-...21H/...22H)
II 2G Ex mb IIC T6 Gb
II 2 D Ex mb IIC T80 °C Db
max. 250 VAC/1.5 A/100 VA
8.3. ATEX reed contact 41R57**
ATEX N/O contact 41R57
II 3G Ex ic IIC T4 Gc
II 3 D Ex ic IIIC T125 °C Dc
-20 °C ≤Ta≤80 °C
max. 250 VAC/DC/1.5 A/100 W/100 VA
ATEX changeover contact 41R57U
II 3G Ex ic IIC T4 Gc
II 3 D Ex ic IIIC T125 °C Dc
-20 °C ≤Ta≤80 °C
max. 250 VAC/DC/1 A/30 W/60 VA

SMV
page 10 SMV K18/0322
Ex-relevant excerpt of the operating instructions of the reed contact
41R57 **
1. Preambel
This excerpt of the operating instructions only represents the ex-relevant aspects.
It is copied into the original operating manual in the same or analogous form;
Textual changes are permitted, the ex-relevant statements remain.
To ensure the function and for your own safety, please read the enclosed
operating instructions carefully before you begin the installation. If you have any
questions, please contact the KOBOLD Messring GmbH, Hofheim. It applies with
the original operating instructions.
The following standard issues were considered in the evaluation of the product:
a) IEC 60079-0:2017 Ed. 7 / EN 60079-0:2018 Explosive atmospheres –
Part 0: Equipment - General requirements
b) IEC 60079-11:2011 Ed. 6 + Corr. 2012 / EN 60079-11:2012 Explosive
atmospheres - Part 11: Equipment protection by intrinsic safety "i"
2. General information on explosion protection
The reed switches work together with various KOBOLD products and serve there
for monitoring. It is available as N/O contact or changeover contact.
The electrical connection is made via a plug - only in intrinsically safe systems.
The reed switch is intended for commercial use and may only be used in
accordance with the specifications in the technical documentation of Kobold and
the information on the nameplate. It is only operated together with certified
products via an intrinsically safe circuit. They comply with the valid standards and
regulations.
The installation regulations (e.g. EN 60079-14) for systems in potentially
explosive atmospheres must be observed.
Further important details can be found in the corresponding EC-type examination
certificate.
Permitted use
• The intrinsically safe reed switch can be used as follows:
• In Zone 2 (Gas-Ex, EPL Gc) in explosion groups IIA, IIB and IIC
• In Zone 22 (Dust-Ex, EPL Dc) in explosion groups IIIA, IIIB and IIIC
• The requirements for simple electrical equipment for use in intrinsically safe
circuits in zones 1/21 are fulfilled.
• The qualification regarding the surface temperature is T4. For all gases, vapors,
mists with an ignition temperature> 135 ° C the equipment is not an ignition
source.
• In the dust Ex area, 125 ° C is the reference temperature for further
consideration regarding the safety distance from the smoldering temperature.
• The ambient temperature range is -20 ° C ≤ Ta ≤ 80 ° C.

SMV
SMV K18/0322 page 11
2.1. Electrical characteristics for Ex i
Electrical data:
• Rated voltage up to 45 volt AC / DC
• Rated current up to 2 A
• UiIC ≤ 30 V AC / DC, IiIIC ≤ 250 mA
• UiIIB ≤ 45 V AC / DC, IiIB ≤ 2 A
• UiIIIC ≤ 45 V AC / DC, IiIIIC ≤ 250 mA
• Li = negligible, Ci = negligible
• Heating on the outer housing <15 K
2.2 Type code
The equipment is identified by the following type code:
Type Description Item-No. Remarks
41R57 A B T
y
pe codin
g
41R57 Contact device
A
N/O contact
(
2 wires
)
, Plu
g
with black cap
Change-over contact (3 wires), Plug with grey
cap
B 70
–
75 with markin
g
(
not ex-relevant
)
202.289 N/O
45
–
50 with markin
g
202.285 N/O
50
–
55 with markin
g
202.286 N/O
60 – 65 with marking 202.287 N/O
70
–
75 with markin
g
202.288 Chan
g
e-over
60
–
65 chan
g
e-over contact 202.290 Chan
g
e-over
2.3 Temperature class
The reed switch is suitable for temperature class T4 / T125 ° C.
2.4 General requirements
2.4.1 Intended Use
a) To ensure safe operation, the products may only be used according to the
instructions in the assembly instructions. During use, the legal and safety
regulations required for the respective application must be observed in
addition. This applies analogously when using accessories.
b) Failure to comply with the instructions given in this excerpt or in the case of
improper handling of the product will render our liability null and void. In
addition, the warranty on products and spare parts is void.
c) The products are not safety elements in terms of their intended use.
d) Only original parts of the manufacturer may be used.

SMV
page 12 SMV K18/0322
2.4.2 General safety instructions
The reed switch corresponds to the state of the art and is reliable. The reed
switch may pose a residual hazard if improperly used and operated by untrained
personnel.
Every person, responsible for the installation, commissioning, maintenance or
repair of the reed switch, must have read and understood the assembly
instructions and in particular the safety instructions.
a) Follow the general rules of technology for the selection and proper
operation of a product.
b) All connected electrical and mechanical equipment must be suitable for
the respective application.
c) Observe the notes in these operating instructions as well as the
conditions of use and permissible data that appear from the imprints /
nameplates of the respective products.
d) It must be ensured that only product protection types corresponding to
the zones are installed!
e) The product is only approved for proper and intended use in a normal
industrial atmosphere. Immersion in liquids is not permitted.
f) It must be ensured that no falling objects can hit the product.
g) The operator must ensure the lightning protection for the entire system in
accordance with local regulations.
h) It is the responsibility of the installer to ensure that the function of the
reed switch in conjunction with the individual evaluation devices functions
properly and is approved for the intended use.
i) The intrinsically safe connection - including the reed switches - must be
made via approved / tested evaluation devices, which may need to be
equipped with suitable zener barriers or switching amplifiers.
3. Commissioning, installation
Depending on the IP degree of protection, the time for cleaning the equipment
(dust deposits) must be specified. Other important facts:
a) The product may be put into operation in Zone 2 (Cat. 3G, EPL Gc)
or in Zone 22 (Cat. 3D, EPL Dc in intrinsically safe circuits only by
specialists with a qualification similar to a qualified person according
to TRBS 1203.
b) The requirements for simple electrical equipment that apply to the
hazardous area of Zones 1/21 according to EN 60079-11 are
fulfilled.
c) The products may only be used in the usual industrial atmosphere.
In the presence of aggressive substances in the air, the
manufacturer must always be consulted. The products must be
adequately protected in adverse environmental conditions.
d) Operation of the product is only permitted in fully assembled and
undamaged enclosures. In case of possible damage, a zone
carryover may have to be considered by the operator; Moreover,
operation of the housing is not permitted if the housing is damaged.
e) The environmental conditions specified in the operating instructions
must be adhered to and protected against adverse environmental
conditions.

SMV
SMV K18/0322 page 13
f) Heat radiation from foreign products / components must also be
considered.
g) The reed switch must be protected against inadmissible access of
liquids and / or soiling.
h) Fixed parts (e.g. due to frost or corrosion) must not be loosened by
force in the presence of an explosive atmosphere. Icing must
therefore be avoided.
i) The reed switch may only be subjected to minor vibrations, see also
IEC 34-14.
j) To ensure the discharge of electrostatic charges, the national
requirements must be considered.
k) In particular, isolated capacities must be prevented.
l) Only those zener barriers or switching amplifiers may be used
whose output circuits are approved / tested for use in potentially
explosive atmospheres. In Europe, use in Zones 1/21 requires an
EC type-examination certificate for the equipment concerned issued
by a body designated for explosion protection.
m) The voltage of the supply units must be less than or equal to the
voltage Ui of the reed switch.
n) The total current Io of the supply units must be less than or equal to
the current Ii of the reed switch.
o) For the installation of the intrinsically safe circuit, a control drawing
(system description) to be created by the installer / operator is
required.
p) Equipotential bonding must be established along the intrinsically
safe circuit when using a grounded supply.
q) The certificates must be taken into account, including the special
conditions specified therein.
r) Resistant parts of the product (e.g. due to frost or corrosion) must
not be forcibly loosened in the presence of an explosive
atmosphere.
s) Within the potentially explosive area, installation may only be
carried out taking into account the locally applicable installation
regulations. The following conditions must be observed
(incomplete):
t) Installation and maintenance may only be carried out in an
explosion-free atmosphere and in compliance with the regulations in
force in the country of the operator.
u) Additional precautions must be taken if the presence of hydrogen
sulphide, ethylene oxide and / or carbon monoxide is to be
expected: these substances have very low ignition energy!
v) In the presence of these substances and in the presence of a
substance of the explosion group IIC and in the case of presumably
existing potentially explosive atmosphere, only spark-free tools may
be used!

SMV
page 14 SMV K18/0322
4. Maintenance, servicing
Definition of terms according to IEC 60079-17:
Maintenance and Repair: A combination of all activities performed to maintain or
recover an item in a condition that meets the requirements of the specification in
question and ensures the performance of the required functions.
Inspection: An activity involving the careful examination of an object, with the
aim of obtaining a reliable statement of the condition of the object, carried out
without disassembly or, if necessary, with partial disassembly, supplemented by
measures such as measurements becomes.
Visual inspection: A visual inspection is a test that detects visible faults, such as
missing screws, without the use of access devices or tools.
Close-up Test: A test that identifies, in addition to the aspects of visual
inspection, such errors, such as loose screws, which can only be obtained by
using access devices, such as a screwdriver, e.g. steps (if necessary), and tools
are visible. For close-up tests, housing usually does not need to be opened or the
equipment must be de-energized.
Detail test: A test that detects, in addition to the aspects of close-up testing, such
defects as, for example, loose connections that can only be recognized by
opening housings and / or, if necessary, using tools and test equipment.
a) Maintenance measures may only be carried out by qualified persons.
b) Only use accessories in potentially explosive atmospheres that comply
with all requirements of European directives and national legislation.
c) Maintenance measures with dismantling of the reed switch may only be
carried out in an ex-free atmosphere.
d) The replacement of components may only be carried out with original
spare parts, which are also approved for use in potentially explosive areas.
e) The products must be regularly maintained and cleaned in the Ex area.
The intervals are set by the operator according to the environmental
demands on site.

SMV
SMV K18/0322 page 15
Activity
visual
inspection per
month
Close
inspection
every 6
months
detailed
inspection
every
12 months
1
Visual inspection of the reed
switch for damage, remove
dust deposits
●
2 Check for integrity and
function ●
3 Testing the entire system The responsibility of the operator
5. Troubleshooting
Products operated in conjunction with potentially explosive atmospheres must not
be modified. Repairs to the product may only be performed by specially trained
and authorized personnel.
6. Disposal
Disposal of the packaging and used parts must be in accordance with the
regulations of the country in which the product is installed.
7. Marking of the reed switch (nameplate)
In the serial number the year of manufacture can be coded; optionally, it can also
be specified as plain text.
As a rule, a readable marking has been made for the type of explosion protection
required in field use - even before the product is put into operation for the first
time.
A reed switch that has already been operated in non-intrinsically safe circuits may
no longer be used in intrinsically safe circuits later on.

SMV
page 16 SMV K18/0322
9. Operation
Adjustment of limit switches (model SMV-3.., display and
contact)
 Loosen both safety screws on contact-socket with a
screwdriver.
 Push the switch housing downward.
 Remove the plug from the socket, after loosening the
safety screws.
 Connect pin 1 + 2 (changeover contact PIN 2 + 3) with a
suitable conductivity circuitry tester.
Attention! Sudden opening of inflow may lead
into pressure peaks, which exceeds the
operating pressure many times. Water hammer!
 Case 1:
with installed unit
Open the inlet pipe.
Let the medium flow
through it slowly, till
the pointer display
shows the flow
volume of desired
switching point.
 Case 2:
with non installed unit
Lift up the float with a
suitable tool, till the pointer
display shows flow volume
of desired switching point
 The reed contact is now closed (electrical conductivity).
 Push the switch housing upward, till the reed contact just opens (no electrical
flow). The contact is now set for decreasing flow. If the contact is to be
adjusted for the rising flow, the contact must be pushed around hysteresis, i.e.
3-5 mm downwards.
 In this position tighten the safety screws through forced turning. Place the plug
cap back. The unit is now ready for operation.
 With right adjustment of limit-switch, bistable operation is achieved, that means
on overstepping of adjusted limit value the contact remains closed and with
understepping of adjusted limit value, the contact remains open.

SMV
SMV K18/0322 page 17
Adjustment of limit value (model SMV-1...)
 Loosen the safety screws on the contact-socket.
 Set the adjustment notch on contact-socket at the desired value on the scale in
the housing.
 In this position, tighten the safety screws.
Hysteresis
Hysteresis indicates the difference between switch-on and switch-off points of the
contacts. Through factory set coordination of magnet and contact force (AW-
number) a float upstroke (hysteresis) of approx. 3-5 mm is achieved. At the same
time, it is ensured that the contact operates in a bistable manner.
Overranging
Attention! Pulsating flow should be avoided. Continuous
overranging through pulsating flow and subsequently resulting
impacts of the float against the float stops may lead to increased
wear and tear as well as damage to the unit. In such cases, please
consult your supplier.
With continuous flow, the measuring range can be overranged, where only an
increase in pressure loss is noticed.
(Permissible max. operational pressure must not be exceeded.)
10. Maintenance
In case, the medium to be measured is uncontaminated, the series SMV are
almost maintenance-free. However, at furring or dirt deposits form in the housing
or other internal parts, the instruments should be regularly cleaned
With a suitable wrench, remove the instrument from the pipe. After removal
of the upper connection, the internal parts may be removed for cleaning.
The internal parts can be cleaned with a suitable brush. After cleaning
reassemble the instrument in the correct order of assembly.
We recommend the replacement of O-ring of the connection joints after cleaning.
Attention! Before starting with the maintenance work, please ensure
that the electric supply lines are de-energized.

SMV
page 18 SMV K18/0322
11. Technical Information
SMV
Housing: SMV-x1.. : Brass, Ms 58
SMV-x2.. : St. Steel, 1.4301
Connections: SMV-x1.. : Brass, Ms 58
SMV-x2.. : St. Steel, 1.4301
Float: SMV-x1.. : Brass, Ms 58
SMV-x101 : PP
SMV-x2.. : St. Steel, 1.4301
SMV-x201 : PVDF
Nozzle: SMV-x1.. : Brass, Ms 58
SMV-x2.. : St. Steel, 1.3955
O-rings: SMV-x1.. : NBR
SMV-x2.. : FPM
Max. temperature: 100 °C
SMV-..01..: 70 °C
Max. pressure: SMV-..01..: 16 bar
SMV-x1.. : 250 bar
SMV-x2.. : 350 bar
Mounting position: vertical, flow from bottom
Accuracy: ± 5 % of F.S.
Repeatability ≤ 1 %
SMV-..21H and SMV-..22H
Housing: SMV-x1.. : Brass, Ms 58
SMV-x2.. : St. Steel, 1.4301
Mandrel bar and stop ring: SMV-x1.. : Brass, Ms 58
SMV-x2.. : Stainless steel, 1.4301
Float: Oxide, Ceramic (Magnets)
and
SMV-x1.. : Brass, Ms 58
SMV-x2.. : Stainless steel, 1.4301
Spring: Stainless steel 1.4310
Max. temperature: 100 °C
Max. pressure: SMV-x1.. : 250 bar
SMV-x2.. : 350 bar
Mounting position: independent
Accuracy: ± 5 % of F.S.
Repeatability ≤ 1 %

SMV
SMV K18/0322 page 19
Contacts with SMV-1..., SMV-3...
Electr. connection: valve connector DIN EN 175301-803
Electrical switching values: N/O contact
max. 250 VAC/DC / 1.5 A / 100 W / 100 VA
changeover contact
max. 250 VAC/DC / 1 A / 30 W / 60 VA
N/O contact and changeover contact (cCSAus)
max. 230 VDC / 0.26 A / 60 W,
60 VDC / 1 A / 60 W,
max. 240 VAC / 0.42 A / 100 W,
100 VAC / 1 A / 100 W
Protection: IP 65 (electr. contact)
IP 54 (pointer indication)
Contacts with SMV-1..., SMV-3... use in hazardous areas
Mechanics: The appparatus can be used as follows in
explosive atmospheres in accordance with the
applicable erection regulations on machines,
devices and plants, such as e.g. EN 1127-1,
EN 60079-14 etc.:
a) In Zone 1 (gas hazard, category IIG) in the
explosion groups IIA, IIB and IIC
b) In Zone 2 (gas hazard, category IIIG) in the
explosion groups IIA, IIB and IIC
c) In Zone 21 (dust hazard, category IID) in
the explosion groups IIIA and IIIB
d) In Zone 22 (dust hazard, category 3D) in
the explosion groups IIIA and IIIB
ATEX contact ...F0: II 2 G Ex mb IIC T6 Gb
II 2 D Ex mb IIC T80 °C Db
ATEX N/O contact 41R57
...G0 and GG: II 3 G Ex ic IIC T4 Gc
II 3 D Ex ic IIIC T125 °C Dc
-20 °C ≤Ta≤80 °C
max. 250 VAC/DC/1.5 A/100 W/100 VA
ATEX changeover contact 41R57U
...H0 and HH: II 3 G Ex ic IIC T4 Gc
II 3 D Ex ic IIIC T125 °C Dc
-20 °C ≤Ta≤80 °C
max. 250 VAC/DC/1 A/30 W/60 VA
Hysteresis: approx. 3.5 mm float movement
Protection: IP 65 (electr. contact)
IP 54 (side indicator)

SMV
page 20 SMV K18/0322
12. Order Codes
Flow switches with 1 contact model: SMV-1...
(Example: SMV-1101H R0 R08)
Measur.
range
L/min.
water
Pressure
loss
Δ P [bar]
Float according to
version Brass Stainless
steel Contact Connection female thread
Brass St. steel
0.1...1 0.02 PP PVDF SMV-1101H... SMV-1201H... ..R0..= 1 N/O contact
..U0..= 1 SPDT.
..F0..**= 1 Ex N/O contact
..C0..= 1 N/O contact (cCSAus)
..D0..= 1 SPDT (cCSAus)
..G0..= 1 ATEX N/O contact
(model 41R57)
..H0..= 1 ATEX changeover
contact (model 41R57U)
..RR...= 2 N/O contact
..UU..= 2 SPDT
..CC..= 2 N/O contact (cCSAus)
..DD..= 2 SPDT (cCSAus)
..GG..= 2 ATEX N/O contact
(model 41R57)
..HH..= 2 ATEX changeover
contact (model 41R57U)
..R08= G 1/4
..R15= G 1/2
..N08= 1/4 NPT
..R15= 1/2 NPT
0.15...1.7 0.04 brass, st. steel SMV-1103H... SMV-1203H...
1...4.5 0.04 st. steel st. steel SMV-1105H... SMV-1205H...
1...7 0.11 brass, st. steel SMV-1107H... SMV-1207H...
1...9 0.12 st. steel st. steel SMV-1109H... SMV-1209H...
2...14 0.18 st. steel st. steel SMV-1111H... SMV-1211H...
2.5...20* 0.06 brass, st. steel SMV-1113H... SMV-1213H...
3...45 0.22 brass, st. steel SMV-1115H... SMV-1215H... ..R20= G 3/4
..R25= G 1 ..N20= 3/4 NPT
3.5...50 0.4 brass, st. steel SMV-1117H... SMV-1217H...
10...110 0.3 st. steel st. steel SMV-1119H... SMV-1219H... ..R32= G 1
1/4 ..N32= 1¼ NPT
*SMV-..13H..R08: Measuring range 2.5 ... 18 l/min water. Connections G 1¼ and 1¼ NPT without ATEX
** Not for SMV-xx19
Flow Meter model: SMV-2...
(Example: SMV-2109H 00 R15)
Measur.
range
L/min.
water
Pressure
loss
Δ P [bar]
Float according to
version Brass Stainless
steel Contact Connection female thread
Brass St. steel
0.1...1 0.02 PP PVDF SMV-2101H... SMV-2201H...
...00...= w/o contact
..R08= G 1/4
..R08= G 1/2
..N08= 1/4 NPT
..N15= 1/2 NPT
0.15...1.7 0.04 brass, st. steel SMV-2103H... SMV-2203H...
1...4.5 0.04 st. steel st. steel SMV-2105H... SMV-2205H...
1...7 0.11 brass, st. steel SMV-2107H... SMV-2207H...
1...9 0.12 st. steel st. steel SMV-2109H... SMV-2209H...
2...14 0.18 st. steel st. steel SMV-2111H... SMV-2211H...
2.5...20* 0.06 brass, st. steel SMV-2113H... SMV-2213H...
3...45 0.22 brass, st. steel SMV-2115H... SMV-2215H... ..R20= G 3/4
..R25= G 1 ..N20= 3/4 NPT
3.5...50 0.4 brass, st. steel SMV-2117H... SMV-2217H...
10...110 0.3 st. steel st. steel SMV-2119H... SMV-2219H... ..R32= G 1 1/4 ..N32= 1¼ NPT-
*SMV-..13H..R08: Measuring range 2.5 ... 18 l/min. water.
Connections G 1¼ and 1¼ NPT without ATEX