Burster 86-2554 User manual

burster Italia s.r.l. · Sede legale ed operativa · Via Cesare Battisti, 16/18 · 24035 Curno (BG) · Tel. [phone] · Fax [phone]
e-mail: [e-mail] · http://www.burster.it
C.F. e P.IVA 11048400151 · Capitale sociale Euro 49.920,00 ·R.E.A. di Bergamo 276749
Apparecchi di misura di precisione. Sensori e Sistemi
per grandezze elettriche, termiche e meccaniche
Operation Manual
for Torque Sensors
For Type 86-2554

burster Italia s.r.l. · Sede legale ed operativa · Via Cesare Battisti, 16/18 · 24035 Curno (BG) · Tel. [phone] · Fax [phone]
e-mail: [e-mail] · http://www.burster.it
C.F. e P.IVA 11048400151 · Capitale sociale Euro 49.920,00 ·R.E.A. di Bergamo 276749
Apparecchi di misura di precisione. Sensori e Sistemi
per grandezze elettriche, termiche e meccaniche
Imprint
Valid for... Torque sensor type 86-2554
Reprint Interdiction Reprints, even in extracts, only with written authority.
Modification Technical changes reserved.

burster Italia s.r.l. · Sede legale ed operativa · Via Cesare Battisti, 16/18 · 24035 Curno (BG) · Tel. [phone] · Fax [phone]
e-mail: [e-mail] · http://www.burster.it
C.F. e P.IVA 11048400151 · Capitale sociale Euro 49.920,00 ·R.E.A. di Bergamo 276749
Apparecchi di misura di precisione. Sensori e Sistemi
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References in this Text
1.6 Warning Notes; Page 6
Attention must be paid to the accident prevention regulations of the trade associations.
Coverings and casings are necessary before operating the sensor. This is also valid for commissioning,
maintenance and trouble shooting.
Duties of the coverings and casings are:
⇒Protection from detaching parts
⇒Protection from contusion and shear
⇒Prevention from reaching rotating parts
⇒Prevention from being tangled up and/or getting caught by parts
Coverings may
⇒Not grind
⇒Not rotate
Coverings are also necessary outside of operating and motion travel areas of persons.
These demands can be modified if other sufficient safety devices are available. During operation, the
safety precautions must be operative. By vibrations, damages can occur at the device.
4.0 Mechanical Assembly; Page 8
Caution: During the assembly inadmissibly large forces may not act on the sensor or the couplings.
Connect the sensor electrically during the assembly and observe the signal, the measurement signal may
not exceed the limit values
During the assembly, the sensor must be supported to protect if from falling down.
Admissible assembly offset from rotor to stator: see data sheet.
4.3.1 Couplings; Page 11
•The power transmission of the tension ring hubs or the clamping ring hubs occurs frictionally
locked; the contact surface between tension ring and hub and between clamping ring and hub are
lubricated on-site
•Hub drillings and shaft ends must be totally free of grease during the assembly. Greasy or oily
drillings or shafts do not transfer the maximum torque of the coupling.
•The shafts may not be equipped with a keyway.
•Hub and tension or clamping ring must be totally unbent, if necessary loosen the screws.
4.3.2 Alignment of the Measurement Arrangement; Page 11
For further references see coupling manual and data sheet for the torque sensor.
4.3.3 Assembly Example of Hubs with Tension Ring; Page 11
For further references see coupling manual.
4.3.4 Assembly Example of Hubs with Clamping Ring; Page 12
For further references see coupling manual.
4.3.5 Assembly Example of Hubs with Feather Key Hub; Page 12
For further references see coupling manual.
6.1 Engaging; Page 13
Warming-up period of the torque sensor is approx. 5 min.
6.4.2 Natural Resonances; Page 14
An operation of the device in natural resonance can lead to permanent damages.

burster Italia s.r.l. · Sede legale ed operativa · Via Cesare Battisti, 16/18 · 24035 Curno (BG) · Tel. [phone] · Fax [phone]
e-mail: [e-mail] · http://www.burster.it
C.F. e P.IVA 11048400151 · Capitale sociale Euro 49.920,00 ·R.E.A. di Bergamo 276749
Apparecchi di misura di precisione. Sensori e Sistemi
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Contents
1 Read First ......................................................................................................................................................5
1.1 Safety and Caution Symbols..................................................................................................................5
1.2 Intended Use..........................................................................................................................................5
1.3 Dangers..................................................................................................................................................5
1.3.1 Neglecting of Safety Notes .............................................................................................................5
1.3.2 Remaining Dangers........................................................................................................................5
1.4 Reconstructions and Modifications ........................................................................................................5
1.5 Personnel ...............................................................................................................................................5
1.6 Warning Notes .......................................................................................................................................6
2 Term Definitions.............................................................................................................................................6
2.1 Terms .....................................................................................................................................................6
2.2 Definition of the Pictograms on the Torque Sensor ...............................................................................6
3 Product Description .......................................................................................................................................6
3.1 Mechanical Setup...................................................................................................................................7
3.2 Electrical Setup ......................................................................................................................................7
4 Mechanical Assembly ....................................................................................................................................8
4.1 Basic Assembly......................................................................................................................................9
4.1.1 Example for assembly with Clamping Set ......................................................................................9
4.1.2 Example for Assembly with Radial Clamping Hub .......................................................................10
4.2 Examples for Torque Sensors without integrated Couplings ...............................................................10
4.2.1 Use of Centre Bore.......................................................................................................................10
4.3 Couplings .............................................................................................................................................11
4.3.1 Couplings......................................................................................................................................11
4.3.2 Alignment of the Measurement Arrangement...............................................................................11
4.3.3 Assembly Example of Hubs with Tension Ring ............................................................................11
4.3.4 Assembly Example of Hubs with Clamping Ring..........................................................................12
4.3.5 Assembly Example of Hubs with Feather Key Hub ......................................................................12
5 Electrical Connection ...................................................................................................................................12
5.1 Pin Connection.....................................................................................................................................12
5.2 Cable....................................................................................................................................................13
5.3 Shielding Connection ...........................................................................................................................13
5.4 Running of Measuring Cables..............................................................................................................13
5.5 Speed Sensor (Option) ........................................................................................................................13
6 Measuring ....................................................................................................................................................13
6.1 Engaging ..............................................................................................................................................13
6.2 Direction of Torque...............................................................................................................................13
6.3 Static / Quasi-Static Torques ...............................................................................................................13
6.4 Dynamic Torques .................................................................................................................................14
6.4.1 General.........................................................................................................................................14
6.4.2 Natural Resonances .....................................................................................................................14
6.5 Speed Limits ........................................................................................................................................14
6.6 Disturbance Variables ..........................................................................................................................14
7 Maintenance ................................................................................................................................................14
7.1 Maintenance Schedule.........................................................................................................................14
7.2 Rotating Torque Sensors .....................................................................................................................14
7.3 Trouble Shooting..................................................................................................................................15
8 Decommission .............................................................................................................................................15
9 Transportation and Storage .........................................................................................................................15
9.1 Transportation ......................................................................................................................................15
9.2 Storage.................................................................................................................................................16
10 Disposal ...................................................................................................................................................16
11 Calibration................................................................................................................................................16
11.1 Proprietary Calibration......................................................................................................................16
11.2 DKD-Calibration ...............................................................................................................................16
11.3 Re-Calibration ..................................................................................................................................16
12 Data Sheet ...............................................................................................................................................16

burster Italia s.r.l. · Sede legale ed operativa · Via Cesare Battisti, 16/18 · 24035 Curno (BG) · Tel. [phone] · Fax [phone]
e-mail: [e-mail] · http://www.burster.it
C.F. e P.IVA 11048400151 · Capitale sociale Euro 49.920,00 ·R.E.A. di Bergamo 276749
Apparecchi di misura di precisione. Sensori e Sistemi
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1 Read First
1.1 Safety and Caution Symbols
Caution:
Injury Risk for Persons
Damage of the Device is possible.
Note:
Important points to be considered.
1.2 Intended Use
Torque sensors are intended for the measurement of torques. This measurement is further suitable for control tasks. The
valid safety regulations should be absolutely respected. The torque sensors are not safety components in the sense of the
intended use. The sensors need to be transported and stored appropriately. The assembly, commissioning and
disassembling must take place professionally.
1.3 Dangers
The torque sensor is fail-safe and corresponds to the state of technology.
1.3.1 Neglecting of Safety Notes
At inappropriate use, remaining dangers can emerge (e.g. by untrained personnel). The operation manual must be read and
understood by each person entrusted with the assembly, maintenance, repair, operation and disassembly of the torque
sensor.
1.3.2 Remaining Dangers
The plant designer, the supplier, as well as the operator must plan, realize and take responsibility for safety-related interests
for the sensor. Remaining dangers must be minimized. Remaining dangers of the torque measurement technique must be
pointed out.
Human mistakes must be considered. The construction of the plant must be suitable for the avoidance of dangers. A
danger-analysis for the plant must be carried out.
1.4 Reconstructions and Modifications
Each modification of the sensors without our written approval excludes liability on our part.
1.5 Personnel
The installation, assembly, commissioning, operation and the disassembly must be carried out by qualified personnel only.
The personnel must have the knowledge and make use of the legal regulations and safety instructions.

burster Italia s.r.l. · Sede legale ed operativa · Via Cesare Battisti, 16/18 · 24035 Curno (BG) · Tel. [phone] · Fax [phone]
e-mail: [e-mail] · http://www.burster.it
C.F. e P.IVA 11048400151 · Capitale sociale Euro 49.920,00 ·R.E.A. di Bergamo 276749
Apparecchi di misura di precisione. Sensori e Sistemi
per grandezze elettriche, termiche e meccaniche
1.6 Warning Notes
Attention must be paid to the accident prevention regulations of the trade associations.
Coverings and casings are necessary before operating the sensor. This is also valid for
commissioning, maintenance and trouble shooting.
Duties of the coverings and casings are:
⇒Protection from detaching parts
⇒Protection from contusion and shear
⇒Prevention from reaching rotating parts
⇒Prevention from being tangled up and/or getting caught by parts
Coverings may
⇒Not grind
⇒Not rotate
Coverings are also necessary outside of operating and motion travel areas of persons.
These demands can be modified if other sufficient safety devices are available. During
operation, the safety precautions must be operative. By vibrations, damages can occur
at the device.
2 Term Definitions
2.1 Terms
Measuring Side:
Mechanical connection of the torque sensor in which the torque to be measured is applied. Usually this side has the
smallest moment of inertia.
Drive Side:
Mechanical connection of the torque sensor on the opposite side of the measuring side, usually with the largest moment of
inertia. At static torque sensors the housing is fastened on this side.
Low Torque Resistance Side:
The shaft of the arrangement (drive, load) which can be turned considerably smaller with torque than the nominal torque of
the torque sensor M << Mnenn .
2.2 Definition of the Pictograms on the Torque Sensor
The measuring side of the torque sensor is designated as follows:
Measuring side:
or M
More information can be found on the data sheet, if needed.
3 Product Description
The sensor measures static and dynamic torques. The mounting position of the torque sensor is horizontally.
Caution: it is to be differentiated between measuring side and drive side, see data sheet of the sensor: http://www.burster.it
M

burster Italia s.r.l. · Sede legale ed operativa · Via Cesare Battisti, 16/18 · 24035 Curno (BG) · Tel. [phone] · Fax [phone]
e-mail: [e-mail] · http://www.burster.it
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3.1 Mechanical Setup
The sensor consists of a stationary part, the stator and a rotary part, the rotor.
3.2 Electrical Setup
The electronics integrated in the sensor consists of two parts.
The first part is in the stator and has following tasks:
Stabilization of the supply voltage
Electric supply of the rotor electronics through the rotating transformer
Preparation of the measurement signal from the rotor
Readout of the torque measurement signal to the cable connection
The second part of the electronics is placed in the rotor of the torque sensor
and has following functions:
Supply of the SG full bridge with d.c. voltage
Preparation of the electrical torque measurement signal
Transmission of the measurement signal to the stator
Stator Electronics
supply and measuring
am
p
lifie
r
Double-Jointed Coupling
for the balance of shaft
misalignments
Rotor Electronics
supply of the SG full
bridge and the
measuring amplifier
Stator
Rotating Transformer
signal transmission from stator
to rotor and contrariwise
Tension Ring
for clamping of the shaft
Clamping Ring
for clamping of the shaft
Gaging Member
with SG bridge
Cable Connection
electrical connection
Air Gap
for free rotation of
the rotor
Mounting Plate
used for fastening of the stator
Slot Drillings 2 x M8
for fastening

burster Italia s.r.l. · Sede legale ed operativa · Via Cesare Battisti, 16/18 · 24035 Curno (BG) · Tel. [phone] · Fax [phone]
e-mail: [e-mail] · http://www.burster.it
C.F. e P.IVA 11048400151 · Capitale sociale Euro 49.920,00 ·R.E.A. di Bergamo 276749
Apparecchi di misura di precisione. Sensori e Sistemi
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4 Mechanical Assembly
Caution: During the assembly inadmissibly large forces may not act on the sensor or the couplings.
Connect the sensor electrically during the assembly and observe the signal, the measurement
signal may not exceed the limit values
During the assembly, the sensor must be supported to protect if from falling down.
Admissible assembly offset from rotor to stator: see data sheet.
For transportation and easier assembly, the torque sensor is delivered with fixing plates.
Assembled fixing plates Removed fixing plates Without fixing plates
The installation and the alignment of the torque sensor occurs with mounted fixing plates.
Afterwards remove the 3 fixing plates and control position of shaft to stator:
a) Axial alignment of the shaft
b) Evenness of the air gap (shaft may not grind at the stator)

burster Italia s.r.l. · Sede legale ed operativa · Via Cesare Battisti, 16/18 · 24035 Curno (BG) · Tel. [phone] · Fax [phone]
e-mail: [e-mail] · http://www.burster.it
C.F. e P.IVA 11048400151 · Capitale sociale Euro 49.920,00 ·R.E.A. di Bergamo 276749
Apparecchi di misura di precisione. Sensori e Sistemi
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4.1 Basic Assembly
4.1.1 Example for assembly with Clamping Set
Setup completely assembled.
DR-2554 with coupling
Specimen
Load machine
Shaft
Mounting surface Mounting block
Clamping set
Shaft
Spannsatz
Clamping at front side
Measurin
g
side
SpecimenDR-2554 with couplingLoad machine
Meas. side

burster Italia s.r.l. · Sede legale ed operativa · Via Cesare Battisti, 16/18 · 24035 Curno (BG) · Tel. [phone] · Fax [phone]
e-mail: [e-mail] · http://www.burster.it
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4.1.2 Example for Assembly with Radial Clamping Hub
4.2 Examples for Torque Sensors without integrated Couplings
By special adapters, the sensor can be connected to any connection element.
Disturbance variables such as
•radial misalignments,
•angular misalignments,
•axial misalignments
always need to be balanced (double-jointed coupling).
4.2.1 Use of Centre Bore
Each part which is led-through the torque sensor means a torque shunt.
•By this, a part of the torque is led-through passed the sensor.
•This proportion is not measured →the shunt must be small compared to the measured torque.
The large centre bore is suitable for the lead-through of
•hydraulic hoses
•pneumatic hoses
•rods
Please note
•The lead-through part may not acquire torque
which will influence the measurement result
•The shunt torque for the transposition of the led-
through parts must be very small against the
applied torque.
At this configuration consider:
Stges MMM +=
St MM >> e.g. tS MM 1000
1
<
Otherwise a disturbance of the measuring signal will occur through the torque shunt.
DR-2554
Load machine
Bearing block
Supply ring
Double-jointed coupling
Radial clamping hub
Radial clamping hub
Clamping screw
Hose
Sensor
ges
M
r
S
M
r
t
M
r

burster Italia s.r.l. · Sede legale ed operativa · Via Cesare Battisti, 16/18 · 24035 Curno (BG) · Tel. [phone] · Fax [phone]
e-mail: [e-mail] · http://www.burster.it
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Apparecchi di misura di precisione. Sensori e Sistemi
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4.3 Couplings
We recommend multi-disc couplings for our torque sensors. Couplings must be able to balance an axial, radial or angular
offset of the shafts and not allow large forces to act on the sensor. The assembly instructions of the respective coupling
manufacturer must be considered.
axial misalignment/radial misalignment/angular misalignment
4.3.1 Couplings
•The power transmission of the tension ring hubs or the clamping ring hubs occurs
frictionally locked; the contact surface between tension ring and hub and between
clamping ring and hub are lubricated on-site
•Hub drillings and shaft ends must be totally free of grease during the assembly. Greasy or
oily drillings or shafts do not transfer the maximum torque of the coupling.
•The shafts may not be equipped with a keyway.
•Hub and tension or clamping ring must be totally unbent, if necessary loosen the screws.
4.3.2 Alignment of the Measurement Arrangement
Precisely alignment of the couplings reduces the reaction forces and increases the durability of the couplings. Disturbance
variables are minimized as well.
Due to the multitude of applications, an alignment of the coupling with a straight edge in two levels, vertical to each other, is
sufficient.
However, in drives with high speed an alignment of the coupling (shaft ends) with a dial gauge or a laser is recommended.
Further Points to be considered
•The axis height of the torque sensor (data sheet) must be considered.
•An air gap between rotor and stator must be available. The rotor may not touch the stator in any operating
condition.
•Axial position of the rotor to the stator: see data sheet.
For further references see coupling manual and data sheet for torque sensor.
4.3.3 Assembly Example of Hubs with Tension Ring
•Shift the hubs with the proper appliance onto the shafts and position correctly.
•Uniformly tighten the clamping screws with the torque wrench in sequence and in several circulations to the
torque indicated in table 1.
•Control the applied tightening torque after 5-10 operating hours.
For further references see coupling manual
Clamping screws Drilling
Fixation for multi-disc assembly
Δ
K
a
Δ
K
w
2
x
Δ
K
w
ΔK
r

burster Italia s.r.l. · Sede legale ed operativa · Via Cesare Battisti, 16/18 · 24035 Curno (BG) · Tel. [phone] · Fax [phone]
e-mail: [e-mail] · http://www.burster.it
C.F. e P.IVA 11048400151 · Capitale sociale Euro 49.920,00 ·R.E.A. di Bergamo 276749
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4.3.4 Assembly Example of Hubs with Clamping Ring
•Shift the hubs with the proper appliance onto the shafts and position correctly.
•Tighten the clamping screw with the torque wrench to the indicated torque.
•Control the applied tightening torque after 5-10 operating hours.
For further references see coupling manual
4.3.5 Assembly Example of Hubs with Feather Key Hub
•Shift the hubs with the proper appliance onto the shafts and fix them axially (see picture below).
The axial fixation occurs through a threaded pin (set screw), which radially presses on the feather key, or through a
pressure-cap and a screw, fastened in centre thread of the shaft.
•The feather key must bear the complete hub length.
Radial securing Axial securing
For further references see coupling manual
5 Electrical Connection
5.1 Pin Connection
Also see test certificate
12-pin Analog Output
Pin A NC
Pin B NC
Pin C Signal ±5 V / (±10 V)
Pin D Signal GND 0 V
Pin E Excitation GND 0 V
Pin F Excitation + 12 ... 28 VDC
Pin G Option Speed TTL
Pin H NC
Pin J NC
Pin K NC
Pin L NC
Pin M Housing
View: socket on oldering side
Clamping screw

burster Italia s.r.l. · Sede legale ed operativa · Via Cesare Battisti, 16/18 · 24035 Curno (BG) · Tel. [phone] · Fax [phone]
e-mail: [e-mail] · http://www.burster.it
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5.2 Cable
Only use a shielded cable with preferably small capacity. We recommend measuring cables from our product range. They
have been tested in combination with our sensors and meet the metrological requirements.
5.3 Shielding Connection
In combination with the sensor and the external electronics, the shield forms a Faraday Cage. By this, electro-magnetic
disturbances do not have any influence on the measurement signal.
5.4 Running of Measuring Cables
Do not run measuring cables together with control or heavy-current cables. Always assure that a large distance is kept to
engines, transformers and contactors, because their stray fields can lead to interferences of the measuring signals.
If troubles occur through the measuring cable, we recommend to run the cable in a grounded steel conduit.
5.5 Speed Sensor (Option)
A hall sensor is located between the pulse wheel and the permanent magnet. If a tooth of the pulse wheel passes the
energized hall sensor, the field intensity of the permanent magnet changes. By this, hall voltage occurs which is conditioned
to a rectangular signal by the integrated evaluation electronics.
6 Measuring
6.1 Engaging
The warming-up period of the torque sensor is approx. 5 min. Afterwards the measurement can be started.
The warming-up period of the torque sensor is approx. 5 min.
6.2 Direction of Torque
Torque means clockwise or clockwise torque if the torque acts clockwise when facing the shaft end. In this case a positive
electrical signal is obtained at the output.
Torque sensors by burster can measure both, clockwise and counter-clockwise direction.
6.3 Static / Quasi-Static Torques
Static and/or quasi-static torque is a slowly changing torque.
The calibration of the sensors occurs statically on a calibration device.
The applied torque may accept any value up to the nominal torque.
Pulse wheel
(ferromagnetic)
N SPermanent magnet
Hall-probe
Output signal

burster Italia s.r.l. · Sede legale ed operativa · Via Cesare Battisti, 16/18 · 24035 Curno (BG) · Tel. [phone] · Fax [phone]
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6.4 Dynamic Torques
6.4.1 General
The static calibration procedure of torque sensors is also valid for dynamic applications.
Note: The frequency of torques must be smaller than the natural frequency of the mechanical measurement setup.
The band width of alternating torque must be limited to 70 % of the nominal torque.
6.4.2 Natural Resonances
Estimate of the mechanical natural frequencies:
⎟
⎟
⎠
⎞
⎜
⎜
⎝
⎛+⋅⋅
⋅
=
21
011
2
1JJ
cf
π
f0
J1, J2
c
= Natural Frequency in Hz
= Moment of Inertia in kg*m²
= Torsional Rigidity in Nm/rad
Further methods for the calculation of natural resonances are corresponding purchasable programs or books (e.g. Holzer-
Procedure (Dubbel, Taschenbuch für den Maschinenbau, Springer Verlag)
Operation of the device in natural resonance can lead to permanent damages.
6.5 Speed Limits
The maximum speed indicated in the data sheet may not be exceeded in any operating state..
6.6 Disturbance Variables
By disturbances, measured value falsifications can occur by
•Vibrations,
•Temperature gradients,
•Temperature changes,
•Arising disturbance variables during operation, e.g. imbalance,
•Electrical disturbances,
•Magnetic disturbances,
•EMC (electromagnetic disturbances),
Therefore avoid these disturbance variables by decoupling of vibrations, covers, etc.
7 Maintenance
To a large extend, the torque sensor is maintenance-free
7.1 Maintenance Schedule
Action Frequency Date Date Date
Control of cables and connectors 1x p.a.
Calibration < 26 months
Control of fixation (flanges, shafts) 1x p.a.
7.2 Rotating Torque Sensors
To a large extend, this sensor type is maintenance free.
J1J2
c

burster Italia s.r.l. · Sede legale ed operativa · Via Cesare Battisti, 16/18 · 24035 Curno (BG) · Tel. [phone] · Fax [phone]
e-mail: [e-mail] · http://www.burster.it
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7.3 Trouble Shooting
This chart is used for searching for the most frequent errors and their elimination
Problem Possible Cause Trouble Shooting
No signal No sensor excitation •Outside of permissible range
•Connect excitation
•Cable defect
•No mains supply
Signal output connected wrong •Connect output correctly
•Evaluation electronics defect
Sensor does not react to torque Shaft not clamped •Clamp correctly
No power supply •Outside of permissible range
•Connect supply
•Cable defect
•No mains supply
Cable defect
•Repair cable
Connector connected wrong
•Connect correctly
Signal has dropouts Axial position rotor to stator outside
of tolerance
•Align rotor
Cable defect
•Repair cable
Zero point outside of tolerance Cable defect •Repair cable
Shaft mounted distorted •Mount correctly
Distorted shaft string •Release from distortion
Strong lateral forces
•Reduce lateral forces
Distorted flanges
•Check evenness of flange-
surfaces
Shaft overloaded
•Send to manufacturer
Wrong torque indication Calibration not correct •Re-calibrate
Sensor defect
•Repair by manufacturer
Torque shunt
•Eliminate shunt
Shaft drags Shaft drags in the rotor •Align shaft
•Concentricity of the parts is not
ensured
Lateral forces too large •Decrease lateral forces
Oscillations Alignment of shaft not correct •Align correctly
Unbalance
•Balance the corresponding
parts
8 Decommission
All sensors must be dismantled professionally. Do not strike sensor housings with tools. Do not apply bending moments on
the sensor, e.g. through levers. The torque sensor must be supported to avoid falling down during the dismantling.
9 Transportation and Storage
The transportation of the sensors must occur in suitable packing.
For smaller sensors, stable cartons which are well padded are sufficient (e.g., air cushion film, epoxy crisps, paper
shavings). The sensor should be tidily packed into film so that no packing material can reach into the sensor (ball bearings).
Larger sensors should be packed in cases.
9.1 Transportation
Only release well packed sensors for transportation. The sensor should not be able to move back and forth in the packing.
The sensors must be protected from moisture.
Only use suitable means of transportation.

burster Italia s.r.l. · Sede legale ed operativa · Via Cesare Battisti, 16/18 · 24035 Curno (BG) · Tel. [phone] · Fax [phone]
e-mail: [e-mail] · http://www.burster.it
C.F. e P.IVA 11048400151 · Capitale sociale Euro 49.920,00 ·R.E.A. di Bergamo 276749
Apparecchi di misura di precisione. Sensori e Sistemi
per grandezze elettriche, termiche e meccaniche
9.2 Storage
The storage of the sensors must occur in dry, dust-free rooms, only.
Slightly lubricate shafts and flanges with oil before storing (rust).
10 Disposal
The torque sensors must be disposed according to the valid provisions of law.
For this, see our “General Terms and Conditions” www.burster.it
11 Calibration
At the time of delivery, torque sensors have been adjusted and tested with traceable calibrated measuring equipment at
factory side. Optionally, a calibration of the sensors can be carried out.
11.1 Proprietary Calibration
Acquisition of measurement points and issuing of a calibration protocol Traceable calibrated measuring equipment is being
used for the calibration. The sensor data are being checked during this calibration.
11.2 DKD-Calibration
The calibration of the sensor is carried out according to the guidelines of the DKD. The surveillance of the calibrating-
laboratory takes place by the DKD. At this calibration, the uncertainty of measurement of the torque measuring instrument is
determined. Further information can be obtained from burster Italia S.r.l.
11.3 Re-Calibration
The recalibration of the torque sensor should be carried out after 26 months at the latest.
Shorter intervals are appropriate:
•Overload of the sensor
•After repair
•After inappropriate handling
•Demand of high-quality standards
•Special traceability requirements
12 Data Sheet
See www.burster.it