WIKA F2221 User manual

Operating instructions
Betriebsanleitung
EN
DE
Tension/compression force transducer with external thread
Models F2220, F2221, F2226
Zug-/Druckkraftaufnehmer mit Außengewinde
Typen F2220, F2221, F2226
Models F2221, F2226

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ADPR1X914124.02 06/2021 EN/DE
WIKA operating instructions, models F2220, F2221, F2226
EN
DE
Operating instructions models F2220, F2221, F2226 Page 3 - 26
Betriebsanleitung Typen F2220, F2221, F2226 Seite 27 - 51
© 10/2020 WIKA Alexander Wiegand SE & Co. KG
All rights reserved. / Alle Rechte vorbehalten.
WIKA®is a registered trademark in various countries.
WIKA®ist eine geschützte Marke in verschiedenen Ländern.
Prior to starting any work, read the operating instructions!
Keep for later use!
Vor Beginn aller Arbeiten Betriebsanleitung lesen!
Zum späteren Gebrauch aufbewahren!

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WIKA operating instructions, models F2220, F2221, F2226
Contents
Contents
1. General information 4
2. Design and function 5
2.1 Overview models F2220, F2221 . . . . . . . . . . . . . . . .5
2.2 Overview model F2226 . . . . . . . . . . . . . . . . . . .5
3. Safety 6
3.1 Explanation of symbols . . . . . . . . . . . . . . . . . . .6
3.2 Description . . . . . . . . . . . . . . . . . . . . . . .6
3.3 Scope of delivery . . . . . . . . . . . . . . . . . . . . .6
3.4 Intended use . . . . . . . . . . . . . . . . . . . . . .7
3.5 Improper use . . . . . . . . . . . . . . . . . . . . . .8
3.6 Responsibility of the operator . . . . . . . . . . . . . . . . .8
3.7 Personnel qualification . . . . . . . . . . . . . . . . . . .9
3.8 Personal protective equipment . . . . . . . . . . . . . . . .9
3.9 Labelling, safety marks . . . . . . . . . . . . . . . . . . 10
4. Transport, packaging and storage 11
4.1 Transport. . . . . . . . . . . . . . . . . . . . . . . 11
4.2 Packaging and storage . . . . . . . . . . . . . . . . . . 11
5. Commissioning, operation 12
5.1 Precautions before commissioning . . . . . . . . . . . . . . 12
5.2 Mounting instructions . . . . . . . . . . . . . . . . . . 12
5.3 Installation of the tension/compression force transducer. . . . . . . 13
5.4 Installation of the tension/compression force transducer with swivel heads 14
5.5 Electrical connection. . . . . . . . . . . . . . . . . . . 15
5.6 Connecting an amplifier. . . . . . . . . . . . . . . . . . 15
5.7 Pin assignment models F2220, F2221. . . . . . . . . . . . . 15
5.8 Pin assignment model F2226 . . . . . . . . . . . . . . . . 15
6. Faults 16
7. Maintenance and cleaning 17
7.1 Maintenance . . . . . . . . . . . . . . . . . . . . . 17
7.2 Cleaning . . . . . . . . . . . . . . . . . . . . . . . 17
7.3 Recalibration . . . . . . . . . . . . . . . . . . . . . 17
8. Dismounting, return and disposal 18
8.1 Dismounting . . . . . . . . . . . . . . . . . . . . . 18
8.2 Return. . . . . . . . . . . . . . . . . . . . . . . . 18
8.3 Disposal . . . . . . . . . . . . . . . . . . . . . . . 18
9. Specifications 19
9.1 Approvals . . . . . . . . . . . . . . . . . . . . . . 25
10. Accessories 25
10.1 Cable . . . . . . . . . . . . . . . . . . . . . . . 25
Annex: EU declaration of conformity 26

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WIKA operating instructions, models F2220, F2221, F2226
1. General information
1. General information
■
The tension/compression force transducers described in the operating instructions
have been designed and manufactured using state-of-the-art technology. All compo-
nents are subject to stringent quality and environmental criteria during production.
Our management systems are certified to ISO 9001.
■
These operating instructions contain important information on handling the instru-
ment. Working safely requires that all safety instructions and work instructions are
observed.
■
Observe the relevant local accident prevention regulations and general safety
regulations for the instrument's range of use.
■
The operating instructions are part of the product and must be kept in the immediate
vicinity of the instrument and readily accessible to skilled personnel at any time. Pass
the operating instructions on to the next operator or owner of the instrument.
■
Skilled personnel must have carefully read and understood the operating instructions
prior to beginning any work.
■
The general terms and conditions contained in the sales documentation shall apply.
■
Subject to technical modifications.
■
Factory calibrations / DAkkS calibrations are carried out in accordance with internati-
onal standards.
Further information:
- Internet address: www.wika.de
- Relevant data sheet: FO 51.16 (F2220)
FO 51.26 (F2221)
FO 51.51 (F2226)
- Application consultant: Tel.: [phone]
Fax: [phone]
[e-mail]
Abbreviations, definitions
2-wire The two connection lines are used for the voltage supply.
The measuring signal also provides the supply current.
3-wire Two connection lines are used for the voltage supply.
One connection line is used for the measuring signal.
UB+ Positive power supply terminal
UB- Negative power supply terminal
S+ Positive output terminal
S- Negative output terminal
Shield Case

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WIKA operating instructions, models F2220, F2221, F2226
2. Design and function
2. Design and function
2.1 Overview models F2220, F2221
Force introduction
Measuring spring
Electrical connection
2.2 Overview model F2226
Force introduction
Measuring spring
Electrical connection
Counter nuts










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WIKA operating instructions, models F2220, F2221, F2226
2.3 Description
The tension/compression force transducer is designed for measuring static and dyna-
mic tension/compression forces.The tension/compression force transducer consists
of a measuring spring on which strain gauges (SGs) are applied.The measuring body
is made of corrosion-resistant stainless steel and is elastically deformed by a tension/
compression force introduced in the force direction.The resulting mechanical tensions
are measured by the strain gauges and output as an electrical output signal. The strain
gauges are arranged so that two of them are stretched and the other two are com-
pressed when a force is applied to the transducer.The pick-up circuit includes correc-
tion and compensation resistors to eliminate unwanted eects on the zero signal and
characteristic value.
2.4 Scope of delivery
■
Tension/compression force transducers
■
Operating instructions
3. Safety
3.1 Explanation of symbols
WARNING!
... indicates a potentially dangerous situation that can result in serious
injury or death, if not avoided.
CAUTION!
... indicates a potentially dangerous situation that can result in light injuries
or damage to property or the environment, if not avoided.
Information
... points out useful tips, recommendations and information for efficient
and trouble-free operation.
2. Design and function / 3. Safety

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WIKA operating instructions, models F2220, F2221, F2226
3. Safety
3.2 Intended use
The tension/compression force transducers are designed for measuring static and
dynamic tension and/or compression forces.
Model Version
F2220 Version for small measuring ranges 0 ... 10 N to 0 ... 5,000 N
F2221 Version for small measuring ranges 0 ... 10 N to 0 ... 50 kN
F2226 Version for measuring ranges 0 ... 10 kN to 0 ... 3,300 kN
These instruments have been designed and tested in accordance with the relevant
safety regulations for electronic measuring instruments. Any usage outside of this is
deemed to be improper.The perfect functioning and operational safety of the trans-
ducers can only be guaranteed when complying with the instructions given in the
operating instructions. During its use, the legal and safety regulations (e.g. VDE 0100)
required for the particular application must additionally be observed.This also applies
accordingly when using accessories.Tension/compression force transducers are RoHS-
compliant in accordance with Directive 2011/65/EU. Faultless and safe operation of this
transducer requires proper transport, professional storage, installation and mounting as
well as careful operation and corrective maintenance.
The instrument has been designed and built solely for the intended use described here,
and may only be used accordingly. The technical specifications contained in these
operating instructions must be observed. Improper handling or operation of the instru-
ment outside of its technical specifications requires the instrument to be taken out of
service immediately and inspected by an authorised service engineer.
Handle electronic precision measuring instruments with the required care (protect from
humidity, impacts, strong magnetic fields, static electricity and extreme temperatures,
do not insert any objects into the instrument or its openings). Connectors, stranded
wires and sockets must be protected from contamination.
The manufacturer shall not be liable for claims of any type based on operation contrary
to the intended use.

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WIKA operating instructions, models F2220, F2221, F2226
3. Safety
3.3 Improper use
WARNING!
Injuries through improper use
Improper use of the instrument can lead to hazardous situations and
injuries.
▶
Refrain from unauthorised modifications to the instrument.
Any use beyond or different to the intended use is considered as improper use.
3.4 Responsibility of the operator
The instrument is used in the industrial sector. The operator is therefore responsible for
legal obligations regarding safety at work.
The safety instructions within these operating instructions, as well as the safety, accident
prevention and environmental protection regulations for the application area must be
maintained.
The operator is obliged to maintain the product label in a legible condition.
To ensure safe working on the instrument, the operating company must ensure
■
that suitable first-aid equipment is available and aid is provided whenever required.
■
that the skilled electrical personnel are regularly instructed in all topics regarding
work safety, first aid and environmental protection and know the operating instruc-
tions and in particular, the safety instructions contained therein.
■
that the instrument is suitable for the particular application in accordance with its
intended use.
■
that personal protective equipment is available.

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WIKA operating instructions, models F2220, F2221, F2226
3. Safety
3.5 Personnel qualification
WARNING!
Risk of injury should qualification be insufficient
Improper handling can result in considerable injury and damage to
equipment.
▶
The activities described in these operating instructions may only be
carried out by skilled personnel who have the qualifications described
below.
Skilled electrical personnel
Skilled electrical personnel are understood to be personnel who, based on their
technical training, know-how and experience as well as their knowledge of country-
specific regulations, current standards and directives, are capable of carrying out work
on electrical systems and independently recognising and avoiding potential hazards.
The skilled electrical personnel have been specifically trained for the work environ-
ment they are working in and know the relevant standards and regulations.The skilled
electrical personnel must comply with current legal accident prevention regulations.
3.6 Personal protective equipment
The requirements for the required protective equipment result from the ambient
conditions at the place of use, other products or the connection to other products.
The requisite personal protective equipment must be provided by the operating
company.The operator is in no way relieved of his obligations under labour law for the
safety and the protection of workers' health.
The design of the personal protective equipment must take into account all operating
parameters of the place of use.

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WIKA operating instructions, models F2220, F2221, F2226








11
3. Safety
3.7 Labelling, safety marks
Product label
Type
Manufacturer logo
Serial number
Ingress protection per DIN EN 60529
Pin assignment
Manufacturer address
Force direction
Supply voltage
Output signal
Measuring range
Product code
11

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WIKA operating instructions, models F2220, F2221, F2226
4. Transport, packaging and storage
4. Transport, packaging and storage
4.1 Transport
Check the tension/compression force transducer for any damage that may have been
caused by transport. Obvious damage must be reported immediately.
CAUTION!
Damage through improper transport
With improper transport, a high level of damage to property can occur.
▶
When unloading packed goods upon delivery as well as during
internal transport, proceed carefully and observe the symbols on the
packaging.
▶
With internal transport, observe the instructions in chapter 4.2
“Packaging and storage”.
As precision measuring instruments, transducers require careful handling during
transport and mounting. Load impacts during transport (e.g. hitting a hard surface) can
lead to permanent damage, resulting in measuring errors in the subsequent measuring
operation.
4.2 Packaging and storage
Do not remove packaging until just before mounting.
Keep the packaging as it will provide optimum protection during transport (e.g. change
in installation site, sending for repair).
Model F2226
During storage the protection cap must always be on the electrical connection to avoid
entry of moisture and dirt.
Permissible conditions at the place of storage:
■
Storage temperature: Follow the instructions given in chapter 9 “Specifications”
■
Humidity: 35 ... 85 % relative humidity (non-condensing)
Avoid exposure to the following factors:
■
Mechanical vibration, mechanical shock (putting it down hard)
■
Dust, dirt, and other objects may not be deposited in such a way that they form a
force shunt with the measuring spring, since this will falsify the measuring signal.

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WIKA operating instructions, models F2220, F2221, F2226
5. Commissioning, operation
5. Commissioning, operation
5.1 Precautions before commissioning
■
Tension/compression force transducers are sensitive measuring instruments and
must be handled with appropriate care.
■
Before installing the tension/compression force transducer, check whether the
threaded bores of the mounting position have been executed dimensionally
accurately, thus guaranteeing problem-free mechanical installation of the tension/
compression force transducer.
■
Before installation, make sure that any drilling chips have been removed from the
threaded bores.
5.2 Mounting instructions
CAUTION!
Damage to the instrument through improper installation
■
Torsional moments, eccentric loads and transverse loads or lateral forces cause
measuring errors and may permanently damage the tension/compression force
transducer.
■
Incorrect loads can cause permanent damage, resulting in a zero signal deviation in
the unloaded state.
▶
With the installation of the tension/compression force transducer, the installation
position and the load direction must be considered.
▶
Torsional and shear forces must be avoided.Transverse loads and lateral forces
also include the corresponding components of the measurands that are introduced
slanted.
▶
The installation of the tension/compression force transducer must not be made with
any violent force.
▶
During installation of the tension/compression force transducer, the output signal
(force value) must always be monitored to avoid mechanical overload.
▶
If high shear forces or lateral forces are to be expected, the use of swivel heads is
recommended.
▶
The supplied counter nuts for model F2226 must never rest on the deformation
element. A gap of at least 0.5 mm must be provided.
▶
With models F2220 and F2221, the device must not touch the deformation element.

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WIKA operating instructions, models F2220, F2221, F2226
5.3 Installation of the tension/compression force transducer
Counter nuts (only model F2226) Measuring object
Thread Measuring object, matching part
Force transducer
5. Commissioning, operation









If necessary, screw counter nuts on each
thread of the force transducer.
Screw the force transducer into the
measuring object. If necessary, secure
with counter nut. Observe the max. torque.
Screw the matching part of the measuring
object onto the free thread. As necessary,
secure with counter nut. Observe the max.
torque. Load the force transducer.
1
3
2




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WIKA operating instructions, models F2220, F2221, F2226
5.4 Installation of the tension/compression force transducer with swivel heads
Counter nuts (only model F2226) Force transducer Clamping system
Thread Swivel heads Retaining bolt
5. Commissioning, operation
If necessary, screw counter nuts on each
thread of the force transducer.
Screw swivel heads onto the thread.
Tighten counter nuts. Observe the max.
torque.
Place the swivel heads in the clamping
device and fix with retaining bolts. The
retaining bolts must not restrict the free
location of the force transducer. Load the
force transducer.






34






12




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WIKA operating instructions, models F2220, F2221, F2226
5. Commissioning, operation
5.5 Electrical connection
To prevent interferences from coupling into the system:
■
Use only shielded and low-capacitance measuring cables (for cables, see chapter 10
“Accessories”).
■
Ground the shield of the measuring cable.
■
Connect the cable shield with the case of the tension/compression force trans-
ducer. In the cables of the accessories, the cable shield is connected by means
of the knurled nut, thus connecting it to the case of the tension/compression force
transducer (for cables, see chapter 10 “Accessories”).
■
Do not install measuring cables in parallel to 3-phase-current cables and control cables.
■
Avoid stray fields of transformers, motors and contactors.
■
Transducers, amplifiers and processing or display units must not be grounded sever-
al times. Connect all instruments to the same protective conductor.
The pin assignment of the connector or of the cable can be found on the product label.
When using extensions, only shielded and low-capacitance cables should be used.The
permitted maximum and minimum lengths of cable are defined in ISO 11898-2. Care
should be taken about the shielding.
5.6 Connecting an amplifier
■
The use of an amplifier is possible as an option.
■
The amplifier is not included in delivery.
■
The tension/compression force transducers described in these operating instructions
output a signal in mV/V based on strain gauges.
■
Any DC amplifiers and carrier amplifiers designed for strain gauge measuring
systems can be used.
Electrical connection - Cable assignment
Excitation voltage (+) Red
Excitation voltage (-) Black
Signal (+) White
Signal (-) Green
A
B
C
D
E
F
Electrical connection mV/V connector
Excitation voltage (+) Pin A&B
Excitation voltage (-) Pin C&D
Signal (+) Pin F
Signal (-) Pin E
5.7 Pin assignment models F2220, F2221
5.8 Pin assignment model F2226

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WIKA operating instructions, models F2220, F2221, F2226
Faults Causes Measures
No output signal No or wrong power supply,
current pulse
Rectify the power supply
Cable break Check the continuity
No or wrong output signal Wrong pin assignment Check pin assignment
Deviating zero point signal Overload, last offset, wrong
connection
Consult the manufacturer
Constant output signal when
changing force
Mechanical overload, wrong
pin assignment
Consult the manufacturer
Signal span varies EMC interference sources in
the environment; for example,
frequency converter
Shield instrument; cable
shield; remove source of
interference
Signal span drops/too small Mechanical overload Consult the manufacturer
6. Faults
6. Faults
CAUTION!
Physical injuries, damage to equipment
If faults cannot be eliminated by means of the measures listed, the tensi-
on/compression force transducer must be taken out of operation immedi-
ately.
▶
Contact the manufacturer.
▶
If a return is needed, please follow the instructions given in chapter 9.2
“Return”.
For contact details see chapter 1 “General information” or the back page
of the operating instructions.

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WIKA operating instructions, models F2220, F2221, F2226
7. Maintenance and cleaning
7. Maintenance and cleaning
For contact details see chapter 1 “General information” or the back page
of the operating instructions.
7.1 Maintenance
This instrument is maintenance-free.
Repairs must only be carried out by the manufacturer.
Only use original parts (see chapter 10 “Accessories”).
7.2 Cleaning
1. Prior to cleaning, disconnect the tension/compression force transducer from the
voltage supply and dismount it.
2. Clean the tension/compression force transducer with a cloth.
Electrical connections must not come into contact with moisture!
CAUTION!
Damage to the instrument
Improper cleaning may lead to damage to the instrument!
▶
Do not use any aggressive cleaning agents.
▶
Do not use any hard or pointed objects for cleaning.
7.3 Recalibration
DAkkS certificate - official certificates:
We recommend that the tension/compression force transducer is recalibrated by the
manufacturer at regular time intervals of approx. 24 months.The basic settings will be
corrected if necessary.

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WIKA operating instructions, models F2220, F2221, F2226
8. Dismounting, return and disposal
8. Dismounting, return and disposal
8.1 Dismounting
Release the load from the tension/compression force transducer and disconnect from
power. Remove the tension/compression force transducer from the mounting.
8.2 Return
Strictly observe the following when shipping the instrument:
All instruments delivered to WIKA must be free from any kind of hazardous substances
(acids, bases, solutions, etc.) and must therefore be cleaned before being returned.
When returning the instrument, use the original packaging or a suitable transport
packaging.
To avoid damage:
1. Wrap the instrument in an antistatic plastic film.
2. Place the instrument, along with the shock-absorbent material, in the packaging.
Place shock-absorbent material evenly on all sides of the transport packaging.
3. If possible, place a bag containing a desiccant inside the packaging.
4. Label the shipment as carriage of a highly sensitive measuring instrument.
Information on returns can be found under the heading “Service” on our
local website.
8.3 Disposal
Incorrect disposal can put the environment at risk.
Dispose of instrument components and packaging materials in an environmentally
compatible way and in accordance with the country-specific waste disposal regulations.
Do not dispose of with household waste. Ensure a proper disposal in
accordance with national regulations.

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WIKA operating instructions, models F2220, F2221, F2226
9. Specifications
9. Specifications
Model F2220
Rated force Fnom N10 / 20 / 50 / 100 / 200 / 500 / 1,000 / 2,000 / 5,000
Relative linearity error dlin
Tension or compression ± 0.5 % Fnom
Relative creep, 30 min. < ±0.1 % Fnom
Relative reversibility error v ±0.5 % Fnom
Relative deviation of zero signal dS, 0 ±2 % Fnom
Relative repeatability error in
unchainged mounting position brg
±0.1 % Fnom
Temperature eect on zero signal TK0< ±0.2 %/10 K
Temperature eect on characteristic
value TKC< ±0.4 %/10 K
Force limit FL150 % Fnom
Breaking force FB> 300 % Fnom
Permissible oscillation stress acc. to
DIN 50100 Frb
70 % Fnom
Rated displacement snom < 0.1 mm
Material Stainless steel
Rated temperature range BT, nom 15 … 70 °C (15 … 250 °C)
Others on request
Operating temperature range BT, G -54 … +121 °C
Output signal (rated output) Cnom 2 mV/V (10 N 1.5 mV/V)
Input-/output resistance Re/Ra350 Ω
Insulation resistance > 2 GΩ
Electrical connection Cable (PTFE) 1.5 m, open wires, 4-wire, shielded
Voltage supply
without amplier DC 2 … 5 V (max. 5 V) for mV/V output
with cable amplier DC 12 … 28 V for output 0(4) … 20 mA,
DC 0 … 10 V
Protection (acc. to IEC/EN 60529) IP65
Weight 5 g up to 30 g depending on rated force
Calibration (standard) Positive in tension

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WIKA operating instructions, models F2220, F2221, F2226
Dimensions in mm
Cable, length approx. 1 m,
stainless steel wire screen
Open wires,
4-wire, length
~ 50 cm
C
Threads at both ends
Rated force
in N
Dimensions in mm
ØD H A B C
10, 20, 50, 100, 200, 500 12.7 7.4 4.8 4.6 M3 x 0.5
1,000, 2,000, 5,000 19.1 9.7 7.9 7.9 M6 x 1.0
9. Specifications