WIKA F2802 User manual

Operating instructions
Betriebsanleitung
EN
DE
Tension/compression force transducer S-type
Models F2802, F2808
Zug-/Druckkraftaufnehmer S-Typ
Typen F2802, F2808
Example: Models F2802, F2808

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WIKA operating instructions, models F2802, F2808
EN
DE
Operating instructions models F2802, F2808 Page 3 - 24
Betriebsanleitung Typen F2802, F2808 Seite 25 - 48
© 07/2020 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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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 F2802 and F2808 tension/compression force transducer 13
5.4 Installation of the F2802 tension/compression force transducer with swivel
heads . . . . . . . . . . . . . . . . . . . . . . . . 15
5.5 Electrical connection. . . . . . . . . . . . . . . . . . . 17
5.6 Connecting an amplifier. . . . . . . . . . . . . . . . . . 17
5.7 Pin assignment . . . . . . . . . . . . . . . . . . . . 17
6. Faults 18
7. Maintenance and cleaning 18
7.1 Maintenance . . . . . . . . . . . . . . . . . . . . . 18
7.2 Cleaning . . . . . . . . . . . . . . . . . . . . . . . 18
7.3 Recalibration . . . . . . . . . . . . . . . . . . . . . 19
8. Dismounting, return and disposal 19
8.1 Dismounting . . . . . . . . . . . . . . . . . . . . . 19
8.2 Return. . . . . . . . . . . . . . . . . . . . . . . . 19
8.3 Disposal . . . . . . . . . . . . . . . . . . . . . . . 19
9. Specifications 20
9.1 Approvals . . . . . . . . . . . . . . . . . . . . . . 23
Appendix: EU declaration of conformity 24

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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 regula-
tions 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 51.48 (F2802)
FO 51.68 (F2808)
- 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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

F
F


EN
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
dynamic tension/compression forces.The tension/compression force transducer con-
sists 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 tensioned and the other two
are compressed when a force is applied to the transducer. The pick-up circuit includes
correction and compensation resistors to eliminate unwanted eects on the zero signal
and characteristic value.
2.3 Scope of delivery
■
Tension/compression force transducer
■
Operating instructions
EN
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
F2802 Measuring ranges 0 ... 0.5 kN to 0 ... 50 kN
F2808 Measuring ranges 0 ... 5 N to 0 ... 2,000 N
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). Plugs, 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 equip-
ment.
▶
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 techni-
cal 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 environment 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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







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
EN
3. Safety
3.7 Labelling, safety marks
Product label

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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 inter-
nal 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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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.
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 transverse forces must be avoided. Transverse loads
and lateral forces also include the corresponding components of the
measurands that are introduced slanted.
■
Torsional torques, 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 mechani-
cal 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.
■
Do not use the tension/compression force transducer as a climbing aid.
■
If high shear forces or lateral forces are to be expected, the use of
swivel heads is recommended.

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5.3 Installation of the F2802 and F2808 tension/compression force transducer
Counter nuts (optional) Thread measuring object, matching part
Thread measuring object Force transducer
5. Commissioning, operation
If necessary, screw the counter nuts  onto
the threads of the measuring object 
and the counterpart of the measuring
object .
Screw the force transducer onto the
thread of the measuring object 
and
onto the thread of the counterpart of the
measuring object . If necessary, secure
with counter nut . Observe the max.
torque.






1 2


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5. Commissioning, operation
If necessary, secure with counter nut .
Observe the max. torque. On model
F2808, the counter nuts must not touch
the force transducer. Load force transducer.
3



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5. Commissioning, operation
5.4 Installation of the F2802 tension/compression force transducer with
swivel heads
Counter nuts (optional) Force transducer Retaining bolt
Swivel heads Clamping system
If necessary, screw counter nuts  on
each thread of the swivel heads .
Screw the swivel heads into the force
transducer .







1 2

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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 .
5. Commissioning, operation
Tighten counter nuts . Observe the max.
torque.


3



4





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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 transdu-
cer. 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 transdu-
cer (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 optionally possible.
■
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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6. Faults / 7. Maintenance and cleaning
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.
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.

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7. Maintenance and cleaning / 8. Dismounting, return ..
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.
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 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 F2802
Rated force Fnom kN 0.5, 1, 2, 5, 10, 20, 30, 50
Relative linearity error dlin
Steel ±0.03 % Fnom
Stainless steel ±0.05 % Fnom
Relative creep, 30 min.
Steel ±0.03 % Fnom
Stainless steel ±0.05 % Fnom
Relative reversibility error v
Steel ±0.03 % Fnom
Stainless steel ±0.05 % Fnom
Relative span in unchanged mounting
position brg
Steel ±0.03 % Fnom
Stainless steel ±0.05 % Fnom
Relative deviation of zero signal dS, 0 ±2 % Fnom
Temperature eect on the zero signal TK0≤ ±0.025 %/10 °C
Temperature eect on the characteristic
value TKC
≤ ±0.025 %/10 °C
Limit force FL150 % 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 Re385 ± 30 Ω
Output resistance Ra350 ± 5 Ω
Insulation resistance Ris ≥ 5,000 MΩ/DC 100 V
Output signal (rated characteristic value)
Cnom
2.0 ± 5 % mV/V
Electrical connection Measuring cable ∅ 5 x 3,000 mm
Excitation voltage BU, nom DC 10 V (max. 15 V)
Ingress protection (per IEC/EN 60529) IP65 (< 5 kN), IP67 (≥ 5 kN)
Weight in kg
0.5 kN 0.3
1, 2 kN 0.5
50, 10 kN 0.5
20, 30 kN 1.3
50 kN 1.4