gtm MKA Series User manual

Operating manual
Size
I - VI
Multicomponent Transducer
Series MKA

© GTM Testing and Metrology GmbH
All rights reserved. This document may not be photocopied, duplicated in any other
form or translated into another language either in whole or in part without the prior
written consent of GTM.
The content of these manual is intended solely for information purposes and can be
changed at any time without prior notification.
With regard to the warranty and liability, we refer expressly to our 'General commercial
terms and conditions' (www.gtm-gmbh.com) and the instructions and regulations con-
tained in these installation and operating instructions.
GTM Testing and Metrology GmbH
Philipp-Reis-Straße 4-6
64404 Bickenbach
Deutschland
Tel: [phone]
Fax: [phone]
[e-mail]
www.gtm-gmbh.com

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Table of contents
1. Product description.............................................................................. 4
1.1 Designated use........................................................................... 4
1.2 Exempted use............................................................................. 4
2. Safety instructions................................................................................ 5
3. Storage and transport instructions ..................................................... 9
4. Cable connection ............................................................................... 10
5. Application instructions .................................................................... 11
5.1 Assembly instruction............................................................... 11
5.2 Definition of force and torque................................................. 14
6. Mating dimensions ............................................................................. 15
7. Technical Data .................................................................................... 16
7.1 Metrological Data..................................................................... 16
7.2 Load range................................................................................ 17
7.3 Configurations.......................................................................... 17
8. Technical support............................................................................... 18
9. Declaration of incorporation.............................................................. 19

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1. Product description
1.1 Designated use
The multicomponent transducer of the MKA series is to be used for measuring
static and dynamic forces and torque vectors in test benches and test machi-
nes.
Any other use is not intended and is therefore prohibited. No claims may be
made for damage resulting from inappropriate use.
The limit values for the total load and all other limits must be complied with.
1.2 Exempted use
The multicomponent transducer is not a safety component. You must not use
it in a complete system in which its failure may lead to the life and well being
of people being endangered.
The transducer is not suitable or approved for use in potentially explosive
areas.
Multicomponent Transducer Series MKA

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2. Safety instructions
Markings used
The following designations and symbols are used in the operating manual
to identify hazards:
▶ Denotes handling instructions
Denotes lists
DANGER!
Denotes a possibly hazardous situation that can lead to physical
injuries or death.
DANGER!
Denotes a hazardous situation due to electrical voltage that can
lead to physical injuries or death.
NOTE!
Denotes usage tips, general information and other useful notes.
DANGER OF BURSTING!
Denotes a potentially hazardous situation that can cause physical
injuries or death if ignored.
Safety instructions

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Additional regulations
This operating manual contains the most important notes for safe operation
of the transducer. Consideration must also be given to the legal and safety re-
gulations applicable at the operating location, the accident prevention regula-
tions applicable at the operating location and the technical data in connection
with the safety regulations listed here.
Residual hazards
The transducer of series MKA is state-of-the-art technology and safe to opera-
te.
Residual hazards can arise during operation if the devices are used and opera-
ted improperly by unqualified personnel.
The scope of delivery for the transducer only covers a partial area of mechat-
ronic metrology. The safety-related criteria for using the transducer within a
complete system must be taken into account by the system design engineer,
the equipment manufacturer and/or the operator so that residual hazards are
minimised. Reference must be made to the remaining residual hazards in the
complete system.
DANGER!
In the case of a complete system, the safety-related criteria must
be taken into account so that any failure of the transducer does not
present a hazard to anyone.
Safety instructions

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Transducer condition and modifications
You may only operate the transducer in a perfect condition while complying
with the instructions given in the operating manual.
The transducer must not be modified either in its design or safety-related fea-
tures, without our express, written permission.
Personnel qualifications
The transducer and additional components must only be operated and as-
sembled by qualified personnel. Qualified personnel are those persons who
are acquainted with the assembly, commissioning and operation of the trans-
ducer and who have the appropriate qualifications for their job.
Safety instructions
DANGER OF BURSTING!
Do not overload the transducer!
The attached parts must also be designed to bear the maximum load.
Only use attached parts in an appropriate condition.
In case of new, untested designs, you must provide additional protec-
tive measures against bursting parts.
Overloading
All transducers of this series have already been subjected to an overload test
at the manufacturer's. No additional overloads are permissible; always com-
ply with the nominal loads of the transducer.
NOTE
GTM oers training courses to qualify personnel.

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Ambient conditions
The transducer is intended for use in enclosed rooms while complying with
the ambient conditions detailed in the technical specifications.
Safety instructions
The tranducer is not permitted for use in potentially explo-
sive areas.
Protect the transducer against the influences of weather,
such as rain and snow. Take appropriate measures on-site
against power surges, e.g. from lightning strike.
No welding circuits may be introduced through the body of
the transducer. If in doubt, you must dismantle the trans-
ducer.
DANGER!
The transducer is not suitable for:
- Potentially explosive areas
- Power surges
- Welding circuits

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3. Storage and transport instructions
Storage and transport instructions
The transducer series MKA is a precision measuring device and must be hand-
led with appropriate caution.
▶ If the transducer is dropped or jolted it can become damaged prohibiting
any further use.
▶ During storage, secure rotationally symmetrical transducers and attach-
ment parts from rolling away.
▶ Only use the original transport packaging and other appropriate cut-to-size
packaging for storage and transport.

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4. Cable connection
Cable connection
▶ pluggable cable connection▶ permanent cable connection, end not connected
xx
Steckbarer
Kabelans chlus s 1)2)
Grey cable
Ø 6,5 mm
6 x 0,25 mm²
Temperature range: -35 °C to +90 °C
Black cable 6-wire
Ø 2,9 mm
6 x 0,04 mm²
Temperature range: -50 °C to +105 °C
7-pin LEMO Series 0
Female: - Male:
Connection Color C olor Pin
Supply voltage (+)
Uin+ blue blue 3
Supply voltage (-)
Uin- black black 2
Measurement signal (+)
Uout+ white white 1
Measurement signal (-)
Uout- red red 4
Sense (+) Sens e+ green green 5
Sense (-) Sens e- grey yellow 6
Shielding yellow grey Hous ing
3) Gray cable with cable fitting P G7
4) Black cable with cable fitting M 6
Permanent connection3)4)
end not connected
1) View too weldingside
2) Female LEM O S.A. Typ: EGG.1B .307.CLL; M ale: FGG.1B.307.CLA .D72

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5. Application instructions
Application instructions
5.1 Assembly instruction
▶ Tighten the screws evenly and crosswise. For higher tightening torques, tighten the
screws in stages.
▶ Avoid mechanical strain on the cable and the connector.
▶ Avoid a deformation of the assembly surfaces. This could aect the measurement.
▶ Pay attention to the cleanliness of the mounting surfaces and connections. They
should be cleaned from dust and dirt before mounting and measuring, otherwise the
measuring would be influenced.
▶ Fastening torque for the screws
Size Screw s ize Screw quality
Fas tening torque Surface pres s ure 1)
--- N·m N/mm²
IM8 10.9 34 700
II M12 10.9 117 800
III M16 10.9 245 720
IV M20 10.9 590 795
V M20 12.9 710 800
VI M30 10.9 2000 680
1) Surface pres s ure on the contact area as a res ult of the max. Fas tening torque

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Application instructions
▶ Position of the coordinate cross

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Application instructions
▶ Recommended plate thickness
MKA Size
III III IV VVI
ØB1 mm 4 H7 4 H7 4 H7 4 H7 6 H7 8 H7
Tmm 1 1 1 1 2 2
Emm 20 25 30 40 60 80
▶ Surface condition of the mounting area; centering hole on both sides

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Application instructions
5.2 Definition of force and torque
A load on the top of the transducer in a positive direction result in a positive signal. Tor-
que vectors are positive according to the „Right-Hand-Rule“.
The zero point [N] of the coordinate system is located in the geometric center of the
transducer. Force vectors aligned through this point, doesn’t cause a measurable tor-
que Mx, My or Mz. On the other hand every vector, which doesn’t aligned through the
zero point cause a torque signal F*a (a is the distance from the zero point).

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6. Mating dimensions
Mating dimensions
Typ xxI I I II II II III III IV IV V V VI VI
C onnection LE MO Pg7 M6 LE MO Pg7 M6 LE MO Pg7 LE MO Pg7 LE MO Pg7 LE MO Pg7
Bore
ØB1mm
Diameter
ØD 1mm
Diameter
ØD 2mm
Pitch circle
diameter
ØP1mm
C entering
diameter
ØP2mm
Thread
T1
Height
H1mm
Height
H2mm
Height
H3mm 21 21
Height
H4mm
Height
H5mm
Height
H6mm
Height
H7mm
Angle
a1
Angle
a2
Angle
a340° 40°
Angle
a454° 54°
6H7
88
124
169
250
180
4H7
90±0.1
130±0.1
63-0.05
60±0.1
136-0.05
95-0.05
205-0.1
200±0.2
300-0.5
68+0.05
220+0.05
M8
103+0.05
M16
M20
M12
145+0.05
M30
315-0.05
52
82
180
112
90
56
90
60
41
30
180
26
45°
45°
5
10.5
22
8
10
30
7
17
30
68°
68°
68°
45°
5
5
2
45°
45°
12 x 30°
16 x 22.5°
+11.25°
8
16
33
33
33
20
155+0.05
145-0.05
280±0.2
352
8H7
36
20
30°

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Technical Data
7. Technical Data
7.1 Metrological Data
Nominal force Fnom kN 100
Accuracy clas s % 0.2
Linearity error dlin % 0.2
Hys teres is h% 0.1
R epeatability (f.s .) % 0.01
C reep % 0.05
Temperature effect on
characteris tic value per 10 K
TK C%/10 K 0.025
Temperature effect on
zero s ignal per 10 K
TK 0%/10 K 0.04
Input res is tance ReΩ400 - 800
Output res is tance RaΩ350 - 700
Ins ulation res is tance Ris Ω> 109
Operating range of
excitation voltage
BU, G V 5 - 12
Protection (DIN EN 60529) IP 501)
R ated D is placement snom mm 2)
Spring rigidity cax kN/mm 2)
Mas s mkg 2)
Proportionate moving mas s mmess kg 2)
Fundamental
res onant frequency fGkHz 2)
Force limit % 2)
Torque limit % 2)
Breaking force % 2)
Breaking torque % 2)
R ated temperature range BT, nom °C 10 - 60
Operating temperature range BT, G °C 5 - 80
1) P ermanent co nnectio n
2) Data depending on co nfiguration. Data available on request
Limits
Mechanical Data
Metrological Data
E lectrical D ata

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Technical Data
7.2 Load range
xSize III III IV VVI
Load range1) Fxy kN 0.3 - 30 1 - 80 2 - 200 3 - 300 5 - 500 25 - 500
Load range1) FzkN 1 - 100 2 - 200 5 - 500 10 - 1000 20 - 1000 100 - 4000
Load range1) Mxy N·m 5 - 1500 25 - 5000 100 - 20000 250 - 25000 1000 - 100000 5000 - 200000
Load range1) MzN·m 5 - 1000 25 - 5000 100 - 10000 250 - 15000 1000 - 25000 5000 - 200000
1) This specifies the minimum and maximum lo ad o f the component fo r which an M KA can be interpreted. No t every combination is possible.
For the best possible design for yo ur applicatio n please co ntact us. Other special load ranges /designs on request
7.3 Configurations
xMKA size III III IV VVI
± F nom
1) kN 540 100 160 200 500
± Mnom
2) N·m 250 3000 10000 15000 20000 50000
Rated
characteristic value
CFx , C Fy mV/V 1.6
Rated
characteristic value
CFz mV/V 0.4
Rated
characteristic value
CMx , C My mV/V
Rated
characteristic value
CMz mV/V
1
2
1
1) Fx ,Fy, Fz
2) M x ,M y, M z
Other combinations of forces and mo ments are possible. The resulting nominal values are gladly given o n request.
2
0.4
2
▶ Other combinations of forces and torques vectors are possible.
The resulting signals are gladly given on request.

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Technical support
8. Technical support
If problems arise while working with the product the following GTM services
can be used:
E-mail support
[e-mail]
Worldwide contact
GTM Testing and Metrology GmbH
Philipp-Reis-Straße 4-6
64404 Bickenbach
Tel. [phone]
Fax [phone]
www.gtm-gmbh.com
Local contact in Czech Republic
GTM Praha s.r.o.
Prosecká 811/76 a
19000 Praha 9
Czech Republic
Tel. [phone]
[email protected]
www.gtm.cz

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Declaration of incorporation
9. Declaration of incorporation
In accordance with EC Machinery Directive 2006/42/EC from May 17, 2006,
Appendix II B
We,
GTM Testing and Metrology GmbH
Philipp-Reis-Straße 4-6
64404 Bickenbach
Deutschland
hereby declare that the product
Multicomponent Transducer Series MKA
complies with the following basic requirement:
▶ 2006/42/EG, Appendix II B EC Machinery Directive
▶ 2004/108/EC EMC Directive
The special technical documents were created in accordance with Appendix
VII, Part B of the EC Machinery Directive 2006/42/EC. Upon reasoned request
we shall undertake to submit them to the market supervision authority in
electronic form within an appropriate period.
The product delivered by us may only be put into operation if it has been de-
termined that the machine into which the product is to be incorporated li-
kewise complies with the provisions of the Machinery Directive.
Daniel Schwind, Technical Manager
Bickenbach, 30.06.2022

Subject to change without notice. All information
describes our products in general terms. They do
not represent agreed quality in the sense of § 434
Para. 1 of the BGB (German Civil Code).
Illustraons may dier from originals.
GTM Testing and Metrology GmbH
Tel: [phone]
Fax: [phone]
[e-mail]
www.gtm-gmbh.com