WIKA F2812 User manual

Operating instructions
Betriebsanleitung
EN
DE
Tension/compression force transducer with external thread
Model F2812
Zug-/Druckkraftaufnehmer mit Außengewinde
Typ F2812
Model F2812

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WIKA operating instructions, model F2812
EN
DE
Operating instructions model F2812 Page 3 - 46
Betriebsanleitung Typ F2812 Seite 47 - 91
© 09/2020 WIKA Alexander Wiegand SE & Co. KG
All rights reserved. / Alle Rechte vorbehalten.
WIKA®and tecsis®are registered trademarks in various countries.
WIKA®and tecsis®sind geschützte Marken 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, model F2812
Contents
Contents
1. General information 4
2. Design and function 5
2.1 Overview. . . . . . . . . . . . . . . . . . . . . . . .5
2.2 Description . . . . . . . . . . . . . . . . . . . . . . .6
2.3 Scope of delivery . . . . . . . . . . . . . . . . . . . . .6
3. Safety 6
3.1 Explanation of symbols . . . . . . . . . . . . . . . . . . .6
3.2 Intended use . . . . . . . . . . . . . . . . . . . . . .7
3.3 Improper use . . . . . . . . . . . . . . . . . . . . . .8
3.4 Responsibility of the operator . . . . . . . . . . . . . . . . .8
3.5 Personnel qualification . . . . . . . . . . . . . . . . . . .9
3.6 Personal protective equipment . . . . . . . . . . . . . . . .9
3.7 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 . . . . . . . . . . . . . . . . . . . . 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 . . . . . . . . . . . . . . . . . . . . . . 19
10. Accessories 20
Annex: EU declaration of conformity 21

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WIKA operating instructions, model F2812
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 / DKD/DAkkS calibrations are carried out in accordance with
international standards.
Further information:
- Internet address: www.wika.de
- Relevant data sheet: FO 51.49 (F2812)
- 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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2. Design and function
2. Design and function
2.1 Overview
Force introduction
Measuring spring
Electrical connection





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2.2 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.
2.3 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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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
F2812 Version for measuring ranges 0 ... 50 N to 0 ... 1 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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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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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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3. Safety
3.7 Labelling, safety marks
Product label








11
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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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).
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, model F2812
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
■
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.
■
Torsional moments, eccentric loads and transverse loads or lateral
forces cause measuring errors and may permanently damage the
tension/compression force transducer.
■
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.
■
When subjected to loads in other devices, other than those planned
in the application, a change in the zero signal may result in permanent
damage.
■
If high shear forces or lateral forces are to be expected, the use of
swivel heads is recommended.
■
The device must not touch the deformation element.

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WIKA operating instructions, model F2812
5.3 Installation of the tension/compression force transducer
5. Commissioning, operation
1


2




F
F
Thread
Force transducer
Measuring object
Screw thread of the force transducer into
the measuring object.
Load the force transducer in the specified
direction.

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WIKA operating instructions, model F2812
5.4 Installation of the tension/compression force transducer with swivel heads
5. Commissioning, operation
12












F
F
Screw the swivel heads onto the thread of
the force transducer.
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 in the specified
direction.
Thread
Kraftaufnehmer
Gelenkköpfe
Haltevorrichtung
Haltebolzen

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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 (+) Green
Signal (-) White
Shield Shield
5.7 Pin assignment

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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, model F2812
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
DKD/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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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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9. Specifications
9. Specifications
Model F2812
Rated force Fnom N50, 100, 150, 200, 300, 500, 600, 1,000
Relative linearity error dlin ±0.5 % Fnom
Relative reversibility error v ±0.5 % Fnom
Relative span in unchanged mounting position
brg
±0.25 % Fnom
Relative deviation of zero signal dS, 0 ±2 % Fnom
Temperature eect on the zero signal TK0≤ ±0.2 %/10 °C
Temperature eect on the characteristic value
TKC
≤ ±0.2 %/10 °C
Limit force FL120 % Fnom
Breaking force FB200 % Fnom
Material of the measuring body Stainless steel
Rated temperature range BT, nom -10 … +60 °C
Service temperature range BT, G -20 … +80 °C
Input resistance Re700 ±30 Ω
Output resistance Ra700 ±5 Ω
Insulation resistance Ris ≥ 5,000 MΩ/DC 100 V
Output signal (rated characteristic value) Cnom 2.0 ±10 % mV/V
Electrical connection Measuring cable ∅ 3 x 3,000 mm
Voltage supply
without amplier DC 10 V (max. 15 V)
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 in kg 0.1
9.1 Approvals
Logo Description Country
EU declaration of conformity
■
EMC directive
■
RoHS directive
European Union
EAC
■
EMC directive
Eurasian Economic
Community

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9. Specifications / 10. Accessories
Rated load in N M
50, 100, 150, 200, 300, 500 M5
600, 1,000 M6
3000
Ø7
12.6
Ø25.4
Ø10
M(2x)
8
37
9.5 13 3
Dimensions in mm
10.Accessories
WIKA accessories can be found online at www.wika.com.