gtm M Series User manual

Operating manual
2 N·m - 10.000 N·m
Torque Transducer
Series M

© 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
4.1 Cable connection | pluggable................................................. 10
4.2 Cable connection | permanent............................................... 11
5. Double Bridge | from 20 N.m.............................................................. 12
6. Temperature Measurement............................................................... 12
7. Application instructions .................................................................... 13
7.1 Assembly instruction............................................................... 13
8. Mating dimensions ............................................................................. 15
8.1 Construction size | 2 - 10 N·m ................................................. 15
8.2 Construction size | 20 N·m - 10 kN·m ..................................... 16
9. Technical Data..................................................................................... 17
9.1 Construction size | 2 - 500 N·m ............................................... 17
9.2 Construction size | 1.000 - 10.000 N·m ................................... 19
10. Technical support ............................................................................... 21
11. Declaration of incorporation............................................................... 22
12. Notes .................................................................................................. 23

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1. Product description
1.1 Designated use
The torque transducer of the M series is is suitable for measuring static and
non-rotating dynamic pure torques.
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 torque transducer is not suitable for rotating operation. The torque 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 M

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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 M is state-of-the-art technology and safe to operate.
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 M 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.

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4. Cable connection
Cable connection
▶ pluggable cable connection
▶ permanent cable connection,
end connected (up to size 10 N·m)
x x
Permanent connection
end connected1)3)4)
Steckbarer
Kabelans chlus s 1)2)5)
7-pin LEMO Series 1
Female
7-pin LEMO Series 0
Female: - Male:
C onnection
Supply voltage (+)
Uin+
Supply voltage (-)
Uin-
Meas urement s ignal (+)
Uout+
Meas urement s ignal (-)
Uout-
Sens e (+) Sens e+
Sens e (-) Sens e-
Shielding
5) A vailable from size 20 N·m.
1) V iew too w eldings ide 2) Female LEMO S.A . Typ: EGG.1B.307.CLL; Male: FGG.1B.307.CLA .D72
3) Up to size 10 N·m. 4) Cable lenght 0,5 m.
6
Hous ing
4
5
2
1
3
Pin
4.1 Cable connection| pluggable

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Cable connection
▶ pluggable cable connection (Ø 6.5 mm )
▶ permanent cable connection,
end not connected (Ø 2.9 mm )
4.2 Cable connection| permanent
x x
Permanent connection
end connected1)3)4)
Steckbarer
Kabelanschluss1)2)5)
7-pin LEMO Series 1
Female
7-pin LEMO Series 0
Female: - Male:
Connection
Supply voltage (+)
Uin+
Supply voltage (-)
Uin-
Measurement signal (+)
Uout+
Measurement signal (-)
Uout-
Sense (+) Sense+
Sense (-) Sense-
Shielding
5) Available from size 20 N·m.
1) View too weldingside 2) Female LEMO S.A. Typ: EGG.1B.307.CLL; Male: FGG.1B.307.CLA.D72
3) Up to size 10 N·m. 4) Cable lenght 0,5 m.
6
Housing
4
5
2
1
3
Pin

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5. Double Bridge | from 20 N.m
Options
▶ 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.
6. 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-pin
Ø 2,2 mm
vibration-proof, 4 x 0,04 mm²
Temperature range: -50 °C to +105 °C
6-pin LEMO Series 0
female: - male:
D-Sub 15-pin
C onnection C olor
U (+) A white 1 5
S ens e (+) B red 3 12
U (-) C black 4 6
Sens e (–) D green 6 13
S hielding E hous ing
1) V iew to w eldingside
Permanent connection1)

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7. Application instructions
Application instructions
7.1 Assembly instruction
▶ Tighten the screws evenly and crosswise.
▶ 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
Nominal force Screw s ize Screw quality Fas tening torque
Surface pres s ure 1)
Nm - - N·m N/mm²
2 2); 5; 10 M4 10.9 4.1 90
20; 50; 100 M6 10.9 14 160
200; 500 M10 10.9 68 340
1000; 1500; 2000 M16 10.9 280 160
4000; 6000 M20 10.9 560 140
10000 M24 10.9 960 145
1) Surface pressure on the contact area as a result of the max. Fastening torque
2) The fastening torque should not be initiated through the force transducer

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Application instructions
▶ Assembly surfaces

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8. Mating dimensions
Mating dimensions
8.1 Construction size | 2 - 10 N·m
R ated Torque Mnom N·m 2 ; 5 ; 10
Diameter
ØD 1mm 30
Diameter
ØD 2mm 22
Diameter
ØD 3mm 8H7
Pitch circle diameter ØP mm 15
Thread
T1M4
Height
H1mm 44
Height
H2mm 9
Height
H3mm 6
Height
H4mm ca. 7
Angle a45°

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Mating dimensions
8.2 Construction size | 20 N·m - 10 kN·m
R ated Torque Mnom N·m
20
50
100
200
500
1000
1500
2000
3000
4000
5000
6000
10000
Diameter
ØD 1mm 50 73 107 141 205
Diameter
ØD 2mm 20H7 30H7 45H7 60H7 120H7
Diameter
ØD 3mm 8H8
Pitch circle diameter ØP mm
30±0.1 45±0.1 71±0.1 95±0.1 155±0.1
Thread
T1M6 M10 M16 M20 M24
Height
H1mm 61-0.1 82-0.1 107-0.1 130 170
Height
H2mm 30.5 41 54 65 85
Height
H3mm 12
Height
H4mm 8
Height
H5mm
Height
H6mm 815 22 25 35
Angle a
4
45°
22
10H8
8

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Technical Data
9. Technical Data
9.1 Construction size | 2 - 500 N·m
R ated Torque Mnom N·m 2 5 10 20 50 100 200 500
Accuracy clas s
Torque meas urement range %
Linearity error dlin %
Interpolation error fc%
Hys teres is h%
R evers ibility error v%
R epeatability (f.s .) %
C reep %
Temperature effect on
characteris tic value per 10 K
TK C%/10 K
Temperature effect on
zero s ignal per 10 K
TK 0%/10 K
Bending moment effect %/N·m 1·10-2 4·10-3 2·10-3 1·10-3 4·10-4 2·10-4 1·10-4 4·10-5
Lateral force effect %/kN 0.9 0.5 0.3 0.15 0.1 0.05 0.03 0.02
Axial force effect %/kN 0.6 0.3 0.2 0.1 0.06 0.04 0.02 0.01
C haracteris tic value difference,
anticlockwis e/clockwis e
dRL %
R ated characteris tic value Cnom mV/V 1.8 1.6
C haracteris tic value tolerance dc%
Zero s ignal deviation dS,0 %
Input res is tance ReΩ
Output res is tance RaΩ
Ins ulation res is tance Ris Ω
Operating range of
excitation voltage BU, G V
Protection (D IN E N 60529)
1100 - 1500
> 109
5 - 15
0.2
0.04
0.05
1 - 100
0.025
0.025
0.003
0.2
0.4
0.05
0.05
Metrological Data
0.5
800 - 1200
2
1)
0.2
E lectrical D ata
IP 54

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Technical Data
R ated Torque Mnom N·m 2 5 10 20 50 100 200 500
R ated tors ion angle jnom rad 0.018 0.013 0.011 0.009 0.007
Tors ional rigidity cTN·m/rad 200 500 1000 1111 3846 9090 22220 71428
Mas s mkg 0.6
Fundamental res onant frequency fGkHz 40 50 30 40
Permis s ible os cillation s tres s %
Torque limit %
Breaking torque %
Lateral force limit kN 515 25 40 65 100
Bending moment limit Mb zul %
Axial force limit Fa zul kN 10 20 40 60 100 160
R ated temperature range BT, nom °C
Operating temperature range BT, G °C
1) The individual nominaö value is specified on the nameplate.
30
0.3
150
Limits
100
>300
5
10 - 60
2
-40 - +120
Mechanical D ata
80
0.5
0.01
1.6

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Technical Data
9.2 Construction size | 1.000 - 10.000 N·m
R ated Torque Mnom N·m 1000 1500 2000 3000 4000 5000 6000 10000
Accuracy clas s
Torque meas urement range %
Linearity error dlin %
Interpolation error fc%
Hys teres is h%
R evers ibility error v%
R epeatability (f.s .) %
C reep %
Temperature effect on
characteris tic value per 10 K
TK C%/10 K
Temperature effect on
zero s ignal per 10 K
TK 0%/10 K
Bending moment effect %/N·m 2·10-5 1·10-5 5·10-6 4·10-6 3·10-6 2·10-6
Lateral force effect %/kN 0.01 0.009 0.007 0.006 0.005 0.004 0.003 0.002
Axial force effect %/kN 0.01 0.006 0.005 0.004 0.003 0.003
C haracteris tic value difference,
anticlockwis e/clockwis e
dRL %
R ated characteris tic value Cnom mV/V
C haracteris tic value tolerance dc%
Zero s ignal deviation dS,0 %
Input res is tance ReΩ
Output res is tance RaΩ
Ins ulation res is tance Ris Ω
Operating range of
excitation voltage
BU, G V
Protection (D IN E N 60529)
0.025
0.05
0.05
5 - 15
0.5
0.2
IP 54
2
Metrological Data
1·10-5
0.003
1 - 100
0.05
0.04
0.2
800 - 1200
0.2
> 109
E lectrical D ata
0.025
0.4
0.002
1100 - 1500

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Technical Data
R ated Torque Mnom N·m 1000 1500 2000 3000 4000 5000 6000 10000
R ated tors ion angle jnom rad 0.006 0.0055 0.005 0.006
Tors ional rigidity cTN·m/rad 1.7·1052.7·1054·1057.5·1051·1061.25·1061.5·1061.8·106
Mas s mkg 7.6 7.7 7.8 7.9 28
Fundamental res onant
frequency
fGkHz 1.5 1.9 2.3 1.5 1.7 1.9 2.2 1.6
Permis s ible os cillation s tres s %
Torque limit %
Breaking torque %
Lateral force limit kN 180 200 300 400 500 650 800 1000
Bending moment limit Mb zul %
Axial force limit Fa zul kN 250 300 400 600 700 850 1000 1500
R ated temperature range BT, nom °C
Operating temperature range BT, G °C
4.8
300
Limits
10 - 60
-40 - +120
100
80
*) Data o n request
Mechanical D ata
0.004
150