KTR DATAFLEX 85 Series Manual

KTR Kupplungstechnik
GmbH
D-48407 Rheine
DATAFLEX
®
85/...
Torque Measuring Shaft
Operating/Assembly instructions
KTR-N
Sheet:
Edition:
49012 EN
1 of 18
6
Please note protection
mark ISO 16016. Drawn: 03.09.13 Pz/Koe Replaced for: KTR-N valid from 28.05.13
Verified: 22.10.13 Pz Replaced by:
DATAFLEX®
Torque measuring shaft type 85/…
DATAFLEX®is a maintenance-free torque measuring shaft with integrated speed measurement.
Combined with the steel lamina coupling RADEX®-N the complete system forms a torsionally stiff,
double-cardanic coupling with integrated measuring shaft.
Table of contents
1 Technical data
2 Advice
2.1 General advice
2.2 Safety and advice symbols
2.3 General hazard warnings
2.4 Intended use
3 Storage
4 Assembly
4.1 Components of DATAFLEX
®
torque measuring shaft
4.2 Advice regarding finish bore
4.3 Displacements - alignment of the torque measuring shaft
4.4 Assembly of the hubs
4.5 Assembly of the RADEX
®
-N clamping ring hubs on the DATAFLEX
®
torque
measuring shaft
4.6 Assembly of the hubs on driving and driven side
4.7 Assembly of the lamina sets
4.8 Tightening torque of the fitting screws
4.9 Advice for assembly of the DATAFLEX
®
torque measuring shaft
4.10 Technical description
4.11 Services, customer service addresses
5 EC certificate of conformity

KTR Kupplungstechnik
GmbH
D-48407 Rheine
DATAFLEX
®
85/...
Torque Measuring Shaft
Operating/Assembly instructions
KTR-N
Sheet:
Edition:
49012 EN
2 of 18
6
Please note protection
mark ISO 16016. Drawn: 03.09.13 Pz/Koe Replaced for: KTR-N valid from 28.05.13
Verified: 22.10.13 Pz Replaced by:
1 Technical data
DATAFLEX®torque measuring shaft
Illustration 1: DATAFLEX®torque measuring shaft
Table 1: Dimensions
DATAFLEX
®
type Dimensions [mm]
d D L1L
2L 3L 4L 5
85/2000 85 215 344 90 164 153 10
85/5000
85/10000
Table 2: Technical data
Coupling size DATAFLEX
®
85/2000 85/5000 85/10000
Electrical data
Nominal torque TKN [Nm] -2000 .. +2000 Nm -5000 .. +5000 Nm -10000 .. +10000 Nm
Band width of torque signal [kHz] (-3dB) 16
Error in linearity incl. hysteresis [%]
1)
< ±0,5
Influence of temperature [%/10K] 0,5
Nominal temperature range [°C] 0 - 55
Supply voltage [V] DC 24 ± 4
Max. current consumption [mA] 100
Torque output
Output voltage torque [V] 0 ... 10
Output current torque [mA] 4 ... 20
Speed output
2)
Number of impulses / revolution 60
Amplitude [V] 24/5V
DC speed output [V] 0 - 10
Scale of direct voltage output 16 settings via micro switch
Inaccuracy of DC output [%]
3)
± 0,2
Direction signal [V] to be omitted
Mechanical data
Static load limit TKmax.
1)
[%] 150
Breaking load TK break
1)
[%] 300
Max. bending torque [Nm] 380 760 1270
Max. radial force [N] 1500 3000 5000
Max. axial force [kN] 50 80 110
Weight [kg] 22,6 23,3 23,9
Torsion spring stiffness CT[Nm/rad] 382000 818570 1273330
Torsion angle with TKN [degrees] 0,30 0,35 0,45
Mass moment of inertia [kgmm
2
] 16360 16790 17420
Max. speed [rpm] 2500
1) Referring to rated torque TKN
2) With connection housing DF2
3) Referring to measuring range value

KTR Kupplungstechnik
GmbH
D-48407 Rheine
DATAFLEX
®
85/...
Torque Measuring Shaft
Operating/Assembly instructions
KTR-N
Sheet:
Edition:
49012 EN
3 of 18
6
Please note protection
mark ISO 16016. Drawn: 03.09.13 Pz/Koe Replaced for: KTR-N valid from 28.05.13
Verified: 22.10.13 Pz Replaced by:
1 Technical data
DATAFLEX®torque measuring shaft in combination with RADEX®-N
Illustration 2: DATAFLEX®with RADEX®-N
Table 3: Dimensions and technical data
Coupling size DATAFLEX
®
85/2000 85/5000 85/10000
Coupling size RADEX
®
-N 105 115 135
Dimensions [mm]
Dimension d1/d2max. 105 115 135
Dimension D1225 265 305
Dimension D2147 163 184
Dimension L6344 364 434
Dimension L790 100 135
Dimension L8384 410 488
Dimension LGes 564 610 758
Dimension E 20 23 27
Setscrew [mm]
Dimension G M12 M12 M20
Dimension t 30 30 40
Tightening torque TA[Nm] 40 40 140
Mechanical data of the combination (DATAFLEX
®
with RADEX
®
-N)
Mass moment of inertia [kgmm²] 225000 473500 1006700
Torsion spring stiffness [Nm/rad] 29300 55600 92800
Weight [kg] 61,5 85,6 130,2
Max. speed [rpm]
1)
2500
1) Higher speeds on request.

KTR Kupplungstechnik
GmbH
D-48407 Rheine
DATAFLEX
®
85/...
Torque Measuring Shaft
Operating/Assembly instructions
KTR-N
Sheet:
Edition:
49012 EN
4 of 18
6
Please note protection
mark ISO 16016. Drawn: 03.09.13 Pz/Koe Replaced for: KTR-N valid from 28.05.13
Verified: 22.10.13 Pz Replaced by:
2 Advice
2.1 General advice
Please read through these assembly/operating instructions carefully before you start up the measuring shaft.
Please pay special attention to the safety instructions!
The mounting instructions are part of your product. Please keep them carefully and close to the measuring shaft.
The copyright for these mounting instructions remains with KTR Kupplungstechnik GmbH.
2.2 Safety and advice symbols
STOP DANGER! Dangerofinjurytopersons.
! CAUTION! Damagesonthemachinepossible.
A TTE NT IO N! Pointing to important items.
2.3 General hazard warnings
STOP
DANGER!
With the assembly, operation and maintenance of the measuring shaft it is important to
secure the entire drive train against accidental switch-on. Please read through and observe
the following safety instructions.
All operations with and on the measuring shaft must be performed based on the idea of “Safety First”.
Secure the measuring shaft and the disengaged drive before the operations are performed.
Secure the drive system against accidental switch-on, for example place warning signs at the switch or
remove the fuse.
Do not touch the measuring shaft when it is in operation.
Protect the measuring shaft from accidental contact. Use an appropriate cover or shield.
2.4 Intended use
You may only assemble, operate and maintain the measuring shaft if you
carefully read through the mounting instructions and understood them
had technical training
are authorized by your company
The measuring shaft can only be used in accordance with the technical data (see table 1 to 3). Unauthorized
alterations to the measuring shaft are not allowed. We will not assume liability for any damage that may arise. In
the interest of further development we reserve the right for technical modifications.
The DATAFLEX®torque measuring shaft described corresponds to the technical status at the time of printing
these assembly instructions.

KTR Kupplungstechnik
GmbH
D-48407 Rheine
DATAFLEX
®
85/...
Torque Measuring Shaft
Operating/Assembly instructions
KTR-N
Sheet:
Edition:
49012 EN
5 of 18
6
Please note protection
mark ISO 16016. Drawn: 03.09.13 Pz/Koe Replaced for: KTR-N valid from 28.05.13
Verified: 22.10.13 Pz Replaced by:
3 Storage
The RADEX®-N couplings are supplied in preserved condition. Both DATAFLEX®and RADEX®-N can be stored
at a dry and covered place for 6 - 9 months.
!
CAUTION!
Humid storage rooms are not suitable.
Please make sure that condensation is not generated. The best relative air humidity is less
than 65%.
4 Assembly
The measuring shaft and the couplings are supplied as single pre-assembled structural components. Before
assembly the measuring shaft should be checked for completeness.
The position of the DATAFLEX®is variable. The measurement system can be mounted horizontally as well as
vertically.
4.1 Components of DATAFLEX
®
torque measuring shaft
Components of
DATAFLEX®torque measuring shaft Components of RADEX®-N coupling
Component Quantity Designation Component Quantity Designation
1 1
DATAFLEX
®
torque measuring shaft 2 2 Flange hub
3 2 Lamina set
4 2
Clamping ring hub with
clamping ring
5 2 Setscrew DIN EN ISO 4029
Illustration 3: DATAFLEX®85 - torque measuring shaft with RADEX®-N

KTR Kupplungstechnik
GmbH
D-48407 Rheine
DATAFLEX
®
85/...
Torque Measuring Shaft
Operating/Assembly instructions
KTR-N
Sheet:
Edition:
49012 EN
6 of 18
6
Please note protection
mark ISO 16016. Drawn: 03.09.13 Pz/Koe Replaced for: KTR-N valid from 28.05.13
Verified: 22.10.13 Pz Replaced by:
4 Assembly
4.2 Advice regarding finish bore
STOP
DANGER!
The maximum permissible bore diameters d1max and
d2max (see RADEX®-N catalogue) must not be
exceeded. If these figures are disregarded, the
coupling may tear. Rotating particles may cause
danger to life.
Hub bores machined by the customer have to observe
concentricity or axial runout, respectively (see
illustration 4).
Please make absolutely sure to observe the figures
for Ø d1max and Ø d2max.
Carefully align the hubs when the finish bores are
drilled.
Please provide for a setscrew according to
DIN EN ISO 4029 with cup point or an end plate for
the axial fastening of the hubs.
Illustration 4: concentricity and axial run-out
4.3 Displacements - alignment of the torque measuring shaft
The displacement figures shown in table 4 provide for sufficient safety to compensate for external influences like,
for example, heat expansion or foundation settling.
!
CAUTION!
In order to ensure a long service life of the measuring shaft the shaft ends must be
accurately aligned. Please absolutely observe the displacement figures indicated (see
table 4). If the figures are exceeded, the measuring shaft with coupling will be damaged.
Please note:
The displacement figures given in table 4 are maximum values. They cannot occur at the same time.
When radial, axial and angular displacement occurs simultaneously, these values must be reduced (see
illustration 6).
Please inspect with a dial gauge, ruler or feeler whether the permissible displacement figures of table 4 can be
observed.
angular displacements radial displacements
Illustration 5: displacements
axial displacements

KTR Kupplungstechnik
GmbH
D-48407 Rheine
DATAFLEX
®
85/...
Torque Measuring Shaft
Operating/Assembly instructions
KTR-N
Sheet:
Edition:
49012 EN
7 of 18
6
Please note protection
mark ISO 16016. Drawn: 03.09.13 Pz/Koe Replaced for: KTR-N valid from 28.05.13
Verified: 22.10.13 Pz Replaced by:
4 Assembly
4.3 Displacements - alignment of the torque measuring shaft
Table 4: Displacement figures
DATAFLEX
®
size RADEX
®
-N
size Max. axial displacement
Ka[mm] Max. radial displacement
K
r
[mm] Max. angular displacement Kw[degree]
85/2000 105 2,4 6,3 1,0
(each lamina package)
85/5000 115 2,8 6,7
85/10000 135 3,5 8,0
Examples for the displacement
combinations given in illustration 6:
Example:
Kr= 60%
Kw= 20%
Ka= 20%
Illustration 6: combination of
displacements
Ktotal = Ka+ K
r
+

Kw100%
4.4 Assembly of the hubs
ATTENTION!
We recommend to inspect bores, shaft, keyway and feather key for dimensional accuracy
before assembly.
4.5 Assembly of the RADEX
®
-N clamping ring hubs on the
DATAFLEX®torque measuring shaft
The force is transmitted through a frictional connection. The fit for the shaft and clamping ring hub is H7/h6.
During assembly please pay attention to the following procedures:
Please clean and degrease the contact surfaces of the hub bores and the shafts before assembly.
!
CAUTION!
Oil and grease with Molybdenum Disulfide or other hydrocarbons as well as grease paste
should not be used.
The clamping screws must be lightly unscrewed, the clamping ring hub should be placed on the shaft and
adjusted to the L6dimension (see illustration 7 and 8).
The clamping screws must be tightened evenly crosswise. The tightening torques should be increased
gradually. This procedure should be repeated until the tightening torque of all of the clamping screws
corresponds to the value given in table 5.

KTR Kupplungstechnik
GmbH
D-48407 Rheine
DATAFLEX
®
85/...
Torque Measuring Shaft
Operating/Assembly instructions
KTR-N
Sheet:
Edition:
49012 EN
8 of 18
6
Please note protection
mark ISO 16016. Drawn: 03.09.13 Pz/Koe Replaced for: KTR-N valid from 28.05.13
Verified: 22.10.13 Pz Replaced by:
4 Assembly
4.5 Assembly of the RADEX
®
-N clamping ring hubs on the
DATAFLEX®torque measuring shaft
Illustration 7: assembly of the clamping ring hubs Illustration 8: adjusting to the L6dimension
Table 5: Tightening torque of the clamping screws
Coupling size DATAFLEX
®
85/2000 85/5000 85/10000
Coupling size RADEX
®
-N 105 115 135
Screw size M12 M12 M16
Number z 9 12 9
Tightening torque TA[Nm] 120 120 295
Transmittable torque [Nm]
1)
(frictional torque) 8000 10900 15600
1) H7/h6 shaft/hub fit
4.6 Assembly of the hubs on driving and driven side
Assemble the hubs on the shafts of the driven and driving side (illustration 9). The ends of the shafts must not
protrude through the hubs.
Move the units in axial direction until the dimension L8is achieved (illustration 10).
If the unit is fixed move the hubs on the shaft to achieve the L8dimension.
ATTENTION!
On request the hubs can be machined for a set screw to secure the hubs in axial
direction. Please mention this request in your order.
!
CAUTION!
During assembly please make sure the correct L8is observed (table 3). If this is not done
the measuring shaft (coupling) can be damaged.
Illustration 9: assembly of the driven and driving side hubs Illustration 10: adjusting to the L8dimension

KTR Kupplungstechnik
GmbH
D-48407 Rheine
DATAFLEX
®
85/...
Torque Measuring Shaft
Operating/Assembly instructions
KTR-N
Sheet:
Edition:
49012 EN
9 of 18
6
Please note protection
mark ISO 16016. Drawn: 03.09.13 Pz/Koe Replaced for: KTR-N valid from 28.05.13
Verified: 22.10.13 Pz Replaced by:
4 Assembly
4.7 Assembly of the lamina sets
!
CAUTION!
During assembly it is important that the lamina sets are assembled free from distortion in
axial direction. If this is not done the coupling can be damaged.
Insert the lamina sets and the DATAFLEX®measuring shaft.
Screw the components hand-tight for the time being, while the fitting screws have to be mounted offset from
left to right (see illustration 11).
Tighten the fitting screws to the tightening torques mentioned in table 6 by means of a torque key.
Illustration 11: assembly of the lamina sets
4.8 Tightening torque of the fitting screws
The fitting screws have to be tightened to the tightening torques TAmentioned in table 6.
Table 6: Tightening torque of the fitting screws
Coupling size DATAFLEX
®
85/2000 85/5000 85/10000
Coupling size RADEX
®
-N 105 115 135
Screw size M16 M20 M24
Tightening torque TA[Nm] 280 550 900
!
CAUTION!
After the coupling has been put into operation the tightening torque of the fitting screws
should be checked during normal maintenance intervals.
4.9 Advice for assembly of the DATAFLEX
®
torque measuring shaft
Fix the housing
!
CAUTION!
The housing must be protected from rotation. For this purpose there is a thread size M4
at the bottom side. Please make absolutely sure to avoid a rigid fixing of the housing!
!
CAUTION!
Opening the housing is not required and can lead to damage of the measurement shaft.

KTR Kupplungstechnik
GmbH
D-48407 Rheine
DATAFLEX
®
85/...
Torque Measuring Shaft
Operating/Assembly instructions
KTR-N
Sheet:
Edition:
49012 EN
10 of 18
6
Please note protection
mark ISO 16016. Drawn: 03.09.13 Pz/Koe Replaced for: KTR-N valid from 28.05.13
Verified: 22.10.13 Pz Replaced by:
4 Assembly
4.9 Advice for assembly of the DATAFLEX
®
torque measuring shaft
Insulation
All DATAFLEX®measuring shafts of type 85 correspond to the Protection IP50 according to DIN EN 60529.
Maintenance
The DATAFLEX® measuring shaft is maintenance-free. Lubrication or cleaning is not necessary.
Calibration
The unit is supplied with a calibration sheet. We recommend to inspect the calibration every six months.
4.10 Technical description
1. General description
The overall measuring electronics is installed in the fixed housing so that additional devices for signal processing
are not necessary. The measuring shaft can be wired either by the terminal housing DF2 available as accessories
or manually by a 12-pole coupling (type Binder series 432) (pin configuration see table 7). The measuring system
has three measuring terminals which the analogous terminal figures for torque and speed can be measured on.
Two digital terminals show the current operating condition, while two digital inputs can be used for calibration.
ATTENTION!
The measuring shaft should initially be switched on when all of the connections have been
properly connected. After it has been switched on for the first time the measuring shaft will
take around 5 minutes until this warm up phase is finished and the measurement device will
have its standard accuracy.
2. Pin assignment of the measuring shaft
Table 7: Pin assignment of the type Binder series 423 connection
Connection Pin Characteristic
Illustration 12: plug connection
DATAFLEX®
Input Voltage
Supply voltage + 24VIN M 24 V DC ± 4 V / 100 mA
Supply voltage - GND L
Torque Output
Output voltage + UOUT F 0 ... 10 V (RA= 1 k

)
Output voltage - GND E
Output current + IOUT G 4 ... 20 mA (RA

500

)
Output current - lOUT- L
Speed Output
Output speed + DRZ H 24 V / 60 impulse/revolution
Output speed - GND J
LED-Output
Program-LED ULED1+ D 5 V / 5 mA prepared for LED
U
LED1- C
Fault signal ULED2+ K 24 V / 5mA prepared for LED
GND L
Calibration Input
Auto-Offset T1 A activ on connection with GND
(Pin L)
Program T2 B

KTR Kupplungstechnik
GmbH
D-48407 Rheine
DATAFLEX
®
85/...
Torque Measuring Shaft
Operating/Assembly instructions
KTR-N
Sheet:
Edition:
49012 EN
11 of 18
6
Please note protection
mark ISO 16016. Drawn: 03.09.13 Pz/Koe Replaced for: KTR-N valid from 28.05.13
Verified: 22.10.13 Pz Replaced by:
4 Assembly
4.10 Technical description
3. Connection housing DF2
The connection housing DF2 has 12 screwed connections for power supply, display equipment and switches.
The torque signal is displayed as proportional direct voltage 0 … 10 V and as current of 4 … 20 mA.
For speed output a square wave signal and a scalable voltage signal is available (for pin configuration see
table 8).
The switch T1 serves for programming and can be bridged externally from GND via the terminal 12 (T1).
Table 8: Pin assignment of the connection housing DF2
No. Designation Function Characteristic
Illustration 13:
connection housing DF2
Input voltage
10 24V Supply voltage + 24 V DC ± 4 V / 100 mA
11 GND Supply voltage -
Torque output
4 M-U
Output voltage + 0 V ... 10 V (RA= 1 k

)
5 GND Ground torque output
6 M-I Output current 4 mA … 20 mA
Speed output pulse signal
7 N1 Speed output channel 1 HTL (24V, 60 pulses /rev.)
TTL (5V, 60 pulses /rev.)
8 GND
Ground for pulse speed
output
9 N2 Without function
Speed output DC-voltage
1 R/L Without function
2 GND Ground for DC speed output
3 N-U Speed output DC-voltage 0 V ... 10 V (scalable)
Other connections / operating device
12 T1 Push button T1 External connection T1
13 L1, L2 Signal LED’s
14 T1, T2 Push button T1, T2 Push button for programming
15 TP Switch low pass filter On/off switch low-pass
16 - Connection measuring shaft 1:1 Connection Cable
17 - Switch for speed scaling see table 12
4. Description of connections
a) Supply voltage 24V
The supply voltage is 24V DC with a maximum current consumption of 100 mA.
b) Torque output U, l
To record the torque there are a voltage and a current output available. Both outputs can be used at the same
time.

KTR Kupplungstechnik
GmbH
D-48407 Rheine
DATAFLEX
®
85/...
Torque Measuring Shaft
Operating/Assembly instructions
KTR-N
Sheet:
Edition:
49012 EN
12 of 18
6
Please note protection
mark ISO 16016. Drawn: 03.09.13 Pz/Koe Replaced for: KTR-N valid from 28.05.13
Verified: 22.10.13 Pz Replaced by:
4 Assembly
4.10 Technical description
Table 9: Relation between torque - output values
DATAFLEX
®
size

U /

M I / M
85/2000 2,5 V / 1000 Nm 4 mA / 1000 Nm
85/5000 1 V / 1000 Nm 1,6 mA / 1000 Nm
85/10000 0,5 V / 1000 Nm 0,8 mA / 1000 Nm
The characteristic curves of the output are shown in illustration 14.1 and 14.2.
The characteristic curves of the output values (see illustration 14.1 and 14.2)
Illustration 14.1: voltage to torque relationship
Illustration 14.2: current to torque relationship

KTR Kupplungstechnik
GmbH
D-48407 Rheine
DATAFLEX
®
85/...
Torque Measuring Shaft
Operating/Assembly instructions
KTR-N
Sheet:
Edition:
49012 EN
13 of 18
6
Please note protection
mark ISO 16016. Drawn: 03.09.13 Pz/Koe Replaced for: KTR-N valid from 28.05.13
Verified: 22.10.13 Pz Replaced by:
4 Assembly
4.10 Technical description
Low pass filter (No. 15)
If the connection housing DF2 is used, the signal of the voltage output can be filtered.
Table 10: Low pass switch (No. 15)
Button adjustment TP Left Right
Low-Pass on Low-Pass off
The limit frequency of the filter can be changed by varying the
DIP switches (see illustration 15) inside the connection housing:
Illustration 15: position of DIP switch
Table 11: Adjustment of the requested filter frequency
Limit frequency [Hz] Switch 1 Switch 2 Switch 3 Switch 4
15000 OFF OFF OFF OFF
1000 OFF OFF OFF ON
100 OFF OFF
ON OFF
10 OFF
ON OFF OFF
1 ON OFF OFF OFF
A filter frequency of 1000 Hz is pre-set.
c) Output speed N1 (No. 7)
For determining the speed a square wave with a frequency of 60 pulses per revolution is available. The height of
the square wave voltage is 24 volts.
Illustration 16
speed (1/min) = 1 / ta(s)
speed (1/min) = f (1/s)

KTR Kupplungstechnik
GmbH
D-48407 Rheine
DATAFLEX
®
85/...
Torque Measuring Shaft
Operating/Assembly instructions
KTR-N
Sheet:
Edition:
49012 EN
14 of 18
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Please note protection
mark ISO 16016. Drawn: 03.09.13 Pz/Koe Replaced for: KTR-N valid from 28.05.13
Verified: 22.10.13 Pz Replaced by:
4 Assembly
4.10 Technical description
Output circuit (connection N1)
The speed output N1 has short-circuit proof push-pull outputs
providing a square-wave voltage with an amplitude of 24V
and a maximum switching current of 30 mA. The output
terminals must not be charged with an external voltage (see
illustration 17).
The output voltage of speed lines can be varied by modifying
the jumper position in the connection housing to 5V level
(see illustration 18). Illustration 17: output circuit of speed outputs
Illustration 18: modification of voltage level for the speed signal
d) Outputs N-U
The KTR connection housing DF02 contains an integrated f/U
converter. It converts the pulses of the encoder to a linear
DC-voltage output (terminal N-U).
On the bottom side of the connection housing DF02 there is a
sixfold multiple switch allowing to adapt the scaling of the
speed signal to the type of measuring shaft and the speed
range (see illustration 13 and 19).
Illustration 19: switch positions

KTR Kupplungstechnik
GmbH
D-48407 Rheine
DATAFLEX
®
85/...
Torque Measuring Shaft
Operating/Assembly instructions
KTR-N
Sheet:
Edition:
49012 EN
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6
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mark ISO 16016. Drawn: 03.09.13 Pz/Koe Replaced for: KTR-N valid from 28.05.13
Verified: 22.10.13 Pz Replaced by:
4 Assembly
4.10 Technical description
Scaling of the speed direct voltage output
Table 12: Switch position S1-S4 and the corresponding scale of the speed output N-U
Max. speed Scaling S1 S2 S3 S4
Illustration 20
10 1 U/min / V 0 0 0 0
20 2 U/min / V 0 0 0 1
40 4 U/min / V 0 0 1 0
60 6 U/min / V 0 0 1 1
80 8 U/min / V 0 1 0 0
100 10 U/min / V 0 1 0 1
200 20 U/min / V 0 1 1 0
400 40 U/min / V 0 1 1 1
600 60 U/min / V 1 0 0 0
800 80 U/min / V 1 0 0 1
1000 100 U/min / V 1 0 1 0
2000 200 U/min / V 1 0 1 1
4000 400 U/min / V 1 1 0 0
6000 600 U/min / V 1 1 0 1
8000 800 U/min / V 1 1 1 0
10000 1000 U/min / V 1 1 1 1
Table 13: Selection of DATAFLEX®series
DATAFLEX
®
type S5 S6
DATAFLEX
®
22, 42, 85, 140 0 0
DATAFLEX
®
16 1 1
DATAFLEX
®
32 0 1
e) Digital input and output
The general parameters for calibration of the measuring shaft
are stored electronically and can be changed by operating
the external calibration input T1 and T2. As done in the
connection box DF2 accessory the connections for the LED
output and the calibration input are wired as shown in
illustration 21 (see table 7).
Illustration 21
LED 1 (Program)
For calibration of the measuring shaft the factors for amplification and offset can be set in steps. According to the
description of the procedure in chapter 4 (calibration) the PROGRAM-LED shows a change in the mode of
operation.
LED 2 (Error) / Error Signal
The perfect operation of the measuring system is permanently supervised.
An electronic defect is shown by an error signal. If an error is permanently shown, the measuring system is
damaged and must be returned to KTR.

KTR Kupplungstechnik
GmbH
D-48407 Rheine
DATAFLEX
®
85/...
Torque Measuring Shaft
Operating/Assembly instructions
KTR-N
Sheet:
Edition:
49012 EN
16 of 18
6
Please note protection
mark ISO 16016. Drawn: 03.09.13 Pz/Koe Replaced for: KTR-N valid from 28.05.13
Verified: 22.10.13 Pz Replaced by:
4 Assembly
4.10 Technical description
Table 14: Condition LED 2
Normal Operation OFF
Error ON
Automatic Offset Correction
If an incorrect value is indicated if no torque is applied (5,0 V), an automatic offset alignment can be effected by
pressing the button T1-Auto-Offset for 2 seconds.
For this purpose the torque is reduced to 0 and the button T1-AUTO-OFFSET must be pressed for 2 seconds.
After successful alignment the saving of the new values is confirmed by 6-fold blinking of the program - LED and
the normal measuring operation is continued automatically.
For an easy connection in control systems the Auto-Offset-Connection is accessible in the connection housing
DF2 (No. 12).
5. Calibration (Manual adjustment of amplification and offset.)
ATTENTION!
The measurement shaft is delivered in calibrated state.
We recommended checking the calibration every half year.
The amplification determines the correct relationship between
the torque and the output voltage as well as the output current. It
influences the incline of the curves shown in illustration 14.1 and
14.2. The displacement of the curves in vertical direction
depends on the offset alignment.
Both parameters can be set and saved one after the other (see
illustration 22).
Illustration 22: flow of the manual setting
Instructions for a new calibration:
1. Press the T2-Program key for 2 seconds. The PROGRAM-LED will blink two times. An adjustment of the
amplification factor is possible now.
2. The measurement shaft should now be alternately loaded and unloaded by a defined weight. The difference
between the output values should be compared to the actual difference between the load and unload.
3. Through a quick press of the T1-AUTO-OFFSET key the amplification factor can be roughly varied. While a
fine variation of the amplification factor can be made using a quick press of the T2-PROGRAM key. One after
the other all of the types of amplification factors can be adjusted (see illustration 23.1).
4. If the difference of the displayed measurement values of the loading and unloading corresponds with the
outside determined torque difference, the adjustment of the amplification is finished.
5. Press the T2-PROGRAM key for 2 seconds. The PROGRAM-LED will blink 4 times. The manual setting of the
offset can start now.
6. As described under point 3 the keys can be pressed quickly to set all of the values (see illustration 23.2). If no
torque is applied the measurement shaft should be adjusted to an output voltage of 5,0 V or rather an output
current of 12,0 mA.
7. When the offset adjustment is finished, pressing the T2-PROGRAM key for two seconds will save all of the
new parameters. The PROGRAM-LED will blink one time. The measuring shaft will be in its normal operating
mode again.

KTR Kupplungstechnik
GmbH
D-48407 Rheine
DATAFLEX
®
85/...
Torque Measuring Shaft
Operating/Assembly instructions
KTR-N
Sheet:
Edition:
49012 EN
17 of 18
6
Please note protection
mark ISO 16016. Drawn: 03.09.13 Pz/Koe Replaced for: KTR-N valid from 28.05.13
Verified: 22.10.13 Pz Replaced by:
4 Assembly
4.10 Technical description
Illustration 23.1 Illustration 23.2
!
CAUTION!
With saving all of the old data will be overwritten.
ATTENTION!
The calibration can be interrupted if the measurement device is switched off for a short
time and then switched on again. The previously saved parameters will then be
reproduced.
The safe measurement operation can be carried out after saving the new parameters
(point 7) or after interrupting the power supply.
After saving the new parameters (point 7) the parameters will stay the same even if the
power supply is interrupted.
4.11 Services, customer service addresses
If requested we are pleased to perform the calibration of your torque measuring shaft and other services.
Contact addresses of the KTR partners for spare parts and orders can be obtained from the KTR homepage at
www.ktr.com.
ATTENTION!
KTR does not assume any liability or warranty for the use of spare parts and accessories
which are not provided by KTR and for the damages which may incur as a result.

Please
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EN 61000-
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N
EN 61000-
4
N
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4
N
EN 61000-
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N
EN 61000-
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N
EN 61000-
6
N
EN 55011:
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28.05.201
3
Date
T
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03.09.
22.10.
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