gtm KTN-LF Series User manual

Operating manual
Nominal Force
1 MN - 30 MN
Force Transfer Standard
Series KTN-LF

© 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. Double Bridge ..................................................................................... 11
6. Bending Moment Measuring Circuits ................................................ 12
7. Temperature Measurement ............................................................... 13
8. Application instructions .................................................................... 14
8.1 Assembly instruction............................................................... 14
8.2 Additional tips.......................................................................... 14
9. Mating dimensions ............................................................................. 15
10. Technical Data..................................................................................... 17
11. Technical support ............................................................................... 18
12. Declaration of incorporation.............................................................. 19

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1. Product description
1.1 Designated use
The force transducer of the KTN-LF series is is suitable for measuring uniaxial
compressive forces and is used for calibration of static measuring machines,
for example in accordance with ISO 376. For safe operation, original force int-
roducing components must be used.
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 force transducer is not suitable for dynamic applications. The force trans-
ducer 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 endange-
red.
The transducer is not suitable or approved for use in potentially explosive
areas.
Force Transducer Standard Series KTN-LF

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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 KTN-LF is state-of-the-art technology and safe to ope-
rate.
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
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 KTN-LF is a precision measuring device and must be
handled 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.
▶ Do not lay the transducer on the housing. The transducer must be always
transported and storaged in a standing position

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4. Cable connection
Cable connection
▶ pluggable cable connection
x x
Connection
pluggable1)2)
7-pin LEMO Series 1
Female: - Male:
Connection Pin
Supply voltage (+)
Uin+ 3
Supply voltage (-)
Uin- 2
Measurement signal (+)
Uout+ 1
Measurement signal (-)
Uout- 4
Sense (+) Sense+ 5
Sense (-) Sense- 6
Shielding Housing
1)View too weldingside
2) Female LEMO S.A. Typ: EGG.1B.307.CLL; Male: FGG.1B.307.CLA.D72
▶
All standard variants are equipped with a pluggable LEMO socket. Suitable
measuring cables S-CAB / C-CAB are available as accessories.
▶
We recommend S-CAB-DMC-L-5M-F as a suitable measuring cable.
▶
More cable types and lengths on request.
▶
Connector types on cable end: D-Sub 9; D-Sub 15; M-S 7pol.

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5. Double Bridge
Option: Double Bridge
▶ For transducers with a double measuring bridge the second signal is mea-
sured by means of an additional plug. The respective electrical connec-
tions can be found in the chapter Technical Data.

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6. Bending Moment Measuring Circuits
Option: Bending Moment Measuring Circuits
▶ During the test of force and torque introduction the bending moments Mx
and My are measured and output as separate channels.
▶ Position of the Bending Moment Measuring Circuits
Nominal load
Fnom MN 1 2 3 5 10 20 30
Temperature effect
on characteristic
value per 10 K
TK C%/10K
Temperature effect on
zero signal per 10 K TK 0%/10K
Input resistance
ReΩ
Operating range of
excitation voltage BU, G V
0.2
0.2
5 - 12
400

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7. Temperature measurement
Option: Temperature measurement
▶ For Type PT100 transducers with an integrated temperature sensor, obser-
ve the basic values of the resistors of the platinum measuring coils with a
nominal resistance of 100 Ohms at 0°C.
These values and the permissible deviations correspond to DIN EN 60751.
Temperature range: see nominal temperature range in Technical Data
Connection type: 4 Conductor technology
Permanent connection
end not connected
Black cable 4-wire
Ø 2,2 mm
4 x 0,04 mm²
Temperature range:
-50 °C bis +105 °C
6-pin LEMO Series 0
Female: - Male:
15-pin Sub-D
male
Connection Color Pin Pin
U (+) A White 1 5
Sense (+) B Red 3 12
U (-) C Black 4 6
Sense (–) D Green 6 13
Shielding E Housing Housing Housing
1) View to weldingside
Permanent connection1)

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8. Application instructions
Application instructions
8.2 Additional tips
▶ Make sure, that the transducer and its adaption parts get even-tempered
aer transportation.
▶ Fot the KTN-LF series we recommend an adaptation-time of 24h
for a temperature dierence of 5 °C.
▶ The transducer should be preheated by connecting the amplifi-
er at least 8 h before measurement.
▶ The design of the load pad may influence the sensitivity of the transducer.
Use only original adaption parts.
8.1 Assembly instruction
▶ Avoid mechanical strain on the cable and the connector.
▶ Wear gloves if you wish to touch the transducer during a series of measurements.
▶ 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.

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9. Mating dimensions
Mating dimensions

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Mating dimensions
Nominal force
Fnorm MN 1 2 3 5 10 20 30
Diameter
ØD 1mm -
Diameter
ØD 2mm 80 120 145 200 273 368 440
Diameter
ØD 3mm 80 120 145 200 273 368 440
Diameter
ØD 4mm 52 80 100 150 158 230 275
Height
H1mm 170 220 320 345 455 545 600
Height
H2mm 75 80 110 125 180 255 300
Height
H3mm 245 300 430 470 635 800 900
Height
H4mm 88.5 97.5 120 185 232.5 285 290
Height
H5mm -
30H7
10

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Technical Data
10. Technical Data
Nominal force Fnom MN 1 2 3 5 10 20 30
Force measurment range %
Interpolation error fc%
Reversibility error v%
Repeatability error in unchanged mounting position b, b rg %
Reproducibility error in different mounting positions b', b rv %
Zero error f0%
Creep 180 s…20 min %
Temperature effect on characteristic value per 10 K TK C%/10K
Temperature effect on zero signal per 10 K TK 0%/10K
Rated characteristic value Cnom mV/V
Input resistance ReΩ
Output resistance RaΩ
Insulation resistance Ris Ω
Operating range of excitation voltage BU, G V
Protection (DIN EN 60529)
Mass transducer mkg 618 35 65 143 308 527
Mass thrust piece mkg 3 6 13 30 70 186 314
Force limit %
Breaking force %
Permissible eccentricity eGmm
Rated temperature range BT, nom °C
Operating temperature range BT, G °C
10
Mechanical Data
Electrical Data
Metrological Data
0.02
0.045
20 - 100
0.03
0.09
5 - 12
ca. 700
0.045
0.14
0.02
2
0.02
ca. 750
>109
54
200
17 - 27
10 - 35
110

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Technical support
11. 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
12. 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
Force Transfer Standard Series KTN-LF
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