KTR MONITEX BT Operating/Mounting Instructions

MONITEX® BT measuring hub
Operating/Assembly instructions
KTR-N
Sheet:
Edition:
49110 EN
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3
MONITEX® BT
Flexible jaw coupling with integrated measurement of torque and speed
MONITEX® BT is a flexible jaw coupling with integrated torque and speed measurement. It is
composed of a coupling hub with integrated measurement electronics and an inductive energy
transducer (inductive head). The measuring data are contactlessly transmitted to a mobile device or PC
and can be additionally read via a display on the coupling with rotation. A digital-to-analog converter is
optionally available providing the data as analog output values.
KTR PC software 1
KTR mobile apps
Display
DAC analog output
IoT Edge Device 1)
1) Please contact KTR for further details about „IoT Edge Device“.
Please observe protection
note ISO 16016.
Drawn:
Verified:
2024-02-07 Pz/Da
2024-02-08 Pz
Replacing:
Replaced by:
KTR-N dated 2023-06-20
MONITEX® BT measuring hub
Operating/Assembly instructions
KTR-N
Sheet:
Edition:
49110 EN
2 of 21
3
Table of contents
1
Technical data
3
2
Advice
5
2.1
2.2
2.3
2.4
2.5
5
5
5
6
6
3
4
General advice
Safety and advice symbols
General hazard warnings
Intended use
Reference to EC Machinery Directive 2006/42/EC
Storage, transport and packaging
6
3.1
3.2
6
6
Storage
Transport and packaging
Assembly
4.1
4.2
4.3
4.4
4.5
4.6
4.7
4.8
5
6
7
Mounting instructions of the MONITEX® BT measuring hub
Components of the MONITEX® BT measuring coupling
Technical description
Advice for finish bore of ROTEX®/ROTEX® GS hub resp. coupling flange N
Assembly of the coupling (general)
Assembly of the hub resp. coupling flange N and the MONITEX® BT measuring hub
Displacements - alignment of the ROTEX® GS couplings
Assembly of the MONITEX® BT inductive head (energy transducer)
7
7
8
8
9
9
10
11
Start-up
12
5.1
5.2
12
12
Electrical connections
Operation
DAC analog output
13
6.1
6.2
13
14
DAC connections and technical data
DAC operation
7
Disposal
15
8
Maintenance and service
15
9
Services, customer service addresses
15
10
Description of the MONITEX® BT app
16
10.1 System requirements
10.2 Linking of hardware
10.3 Measuring mode
10.4 Settings
10.5 Saving of measuring data
16
16
17
18
19
Declaration of conformity
20
11.1 EU Declaration of conformity
11.2 UK Declaration of conformity
20
21
11
Please observe protection
note ISO 16016.
Drawn:
Verified:
2024-02-07 Pz/Da
2024-02-08 Pz
Replacing:
Replaced by:
KTR-N dated 2023-06-20
KTR-N
Sheet:
Edition:
MONITEX® BT measuring hub
Operating/Assembly instructions
1
49110 EN
3 of 21
3
Technical data
MONITEX® BT measuring hub
Illustration 1: MONITEX® BT measuring hub
Table 1: Dimensions
MONITEX® BT size
28/200
42/800
DA
112.4
138.4
DH
65
95
DN
90
120
D4
54
80
Dimensions in mm
D5
44
65
L5
1.5
1.5
L7
28
33
N
10
10
Zx M
8x M6
12x M8
Table 2: Technical data
Coupling size of MONITEX® BT
28/200
42/800
Electrical data
Supply voltage DC in V
Max. current consumption in mA
24 ±4
200
Torque measurement
Measuring range - rated torque TKN in Nm
-200 … +200
-800 … +800
Measuring frequency of PC software in Hz
500
Measuring frequency of mobile device (Android, iOS) in Hz
60
Error in linearity in % 1)
±0.25 1)
Influence of temperature in %/10K
0.05 1)
Nominal temperature range in °C
0 - 55
Speed measurement
Measuring range in rpm
30 - 3500
Inaccuracy in rpm
1
Measuring frequency of PC software in Hz
5
Measuring frequency of mobile device (Android, iOS) in Hz
3
Display
Number of digits of torque
3 + 1 decimal places + sign
Number of digits of speed
4
300
Switch-on threshold in rpm
Mechanical data
Static load limit TKmax. in % 1)
150
150
Breaking load TK break in % 1)
300
300
Max. bending torque in Nm
22.0
86.0
Max. radial force in N
250
700
Max. axial force in kN
8.0
20.0
Weight in kg
0.84
1.72
Torsion spring stiffness CT in Nm/rad
46000
194000
Torsion angle with TKN in degrees
0.25
0.24
Mass moment of inertia in kgmm2
765.0
2690.0
Max. speed in rpm
3500
1) Referring to rated torque TKN (different TKN figures of spider, see table 3)
Please observe protection
note ISO 16016.
Drawn:
Verified:
2024-02-07 Pz/Da
2024-02-08 Pz
Replacing:
Replaced by:
KTR-N dated 2023-06-20
KTR-N
Sheet:
Edition:
MONITEX® BT measuring hub
Operating/Assembly instructions
1
49110 EN
4 of 21
3
Technical data
MONITEX® BT measuring coupling in combination with a coupling flange
Illustration 2: MONITEX® BT measuring coupling with coupling flange
Table 3: Dimensions and technical data
MONITEX® BT
size
Size
28/200
28
42/800
42
ROTEX® GS
Spider GS
Rated torque TKN
shore hardness
in Nm
92 ShA
95
98 ShA
160
57 ShD
178
64 ShD
200
72 ShD
260
98 ShA
450
57 ShD
495
64 ShD
560
72 ShD 1)
728
Dimensions 2) in mm
Max. finish bore
D
D1
DA
DH
DBSE
DN
DN2
35
30
112.4
65
54.5
90
42
55
45
138.4
95
65.0
120
62
Dimensions 2) in mm
MONITEX® BT
size
D4
L
L1
L2
L5
L7
E
B1
S
28/200
42/800
54
80
125
166
35
50
35.5
51.0
35
50
28
33
20
26
15
20
2.5
3.0
Cap screws DIN EN ISO 4762
Number Z
M
TA in Nm
8
M6
17
12
M8
41
1) When using the 72 ShD spider, we recommend to use hubs made of steel.
2) For dimensions G, G1, T and T1 see table 4

Please note that with the use of the 72 ShD spider of ROTEX® GS size 28 the max.
permissible torque of MONITEX® BT (see table 2) must not be exceeded.
Please observe protection
note ISO 16016.
Drawn:
Verified:
2024-02-07 Pz/Da
2024-02-08 Pz
Replacing:
Replaced by:
KTR-N dated 2023-06-20
MONITEX® BT measuring hub
Operating/Assembly instructions
2
Advice
2.1
General advice
KTR-N
Sheet:
Edition:
49110 EN
5 of 21
3
Read carefully through these operating/assembly instructions before you start up the measuring coupling.
Pay special attention to the safety instructions!
The operating/assembly instructions are part of your product. Please store them carefully and close to the
measuring coupling. The copyright for these operating/assembly instructions remains with KTR.
2.2
Safety and advice symbols
Warning of potentially explosive
atmospheres
This symbol indicates notes which may contribute to
preventing bodily injuries or serious bodily injuries that
may result in death caused by explosion.
Warning of personal injury
This symbol indicates notes which may contribute to
preventing bodily injuries or serious bodily injuries that
may result in death.
Warning of product damages
This symbol indicates notes which may contribute to
preventing material or machine damage.
Warning of electromagnetic field
This symbol indicates notes which may contribute to
preventing injuries resulting from electromagnetic
radiation.

General advice
This symbol indicates notes which may contribute to
preventing adverse results or conditions.
2.3
General hazard warnings
STOP
!
STOP
With assembly, operation and maintenance of the measuring coupling it has to be made
sure that the entire drive train is secured against accidental switch-on. You may be seriously
hurt by rotating parts. Make absolutely sure to read through and observe the following
safety indications.
• All operations on and with the measuring coupling have to be performed taking into account "safety first".
• Make sure to switch off the power pack before you perform your work on the measuring coupling.
• Secure the power pack against accidental switch-on, e. g. by providing warning signs at the place of switch-on
or removing the fuse for current supply.
• The front side of the MONITEX® BT inductive head must not have any contact with metallic surfaces when
switched on. Metallic surfaces reduce the transmission performance and may damage the electronics
assembly with permanent contact. The minimum distance to metallic surfaces should not fall below 10 mm.
• Do not reach into the operating area of the measuring coupling as long as it is in operation.
• Secure the rotating components of the measuring coupling against accidental contact. Provide for the
necessary protection devices and covers.
The device must not be used by persons with a pacemaker, since the energy needed for the
operation is transmitted by an inductive head. We cannot rule out that the emerging
electromagnetic radiation may generate malfunctions or damages on vital medical devices.
Please observe protection
note ISO 16016.
Drawn:
Verified:
2024-02-07 Pz/Da
2024-02-08 Pz
Replacing:
Replaced by:
KTR-N dated 2023-06-20
MONITEX® BT measuring hub
Operating/Assembly instructions
2
Advice
2.4
Intended use
KTR-N
Sheet:
Edition:
49110 EN
6 of 21
3
You may only assemble, operate and maintain the measuring coupling if you
• have carefully read through the operating/assembly instructions and understood them
• are technically qualified and specifically trained (e. g. safety, environment, logistics)
• are authorized by your company
The measuring coupling may only be used in accordance with the technical data (see chapter 1). Unauthorized
modifications on the measuring coupling design are not admissible. 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 MONITEX® BT measuring hub described in here corresponds to the state of the art at the time of printing of
these operating/assembly instructions.
2.5
Reference to EC Machinery Directive 2006/42/EC
The measuring equipment supplied by KTR should be considered as components, not machines or partly
completed machines according to EC Machinery Directive 2006/42/EC. Consequently KTR does not have to
issue a declaration of incorporation. For details about safe assembly, start-up and safe operation refer to the
present operating/assembly instructions considering the warnings.
3
Storage, transport and packaging
3.1
Storage
!
3.2
!
Humid storage rooms are not suitable.
Make sure that condensation is not generated. The best relative air humidity is less than
65 %.
Transport and packaging
In order to avoid any injuries and any kind of damage always make use of proper transport
and lifting equipment.
The measuring couplings are packed differently each depending on size, number and kind of transport. Unless
otherwise contractually agreed, packaging will follow the in-house packaging specifications of KTR.
Please observe protection
note ISO 16016.
Drawn:
Verified:
2024-02-07 Pz/Da
2024-02-08 Pz
Replacing:
Replaced by:
KTR-N dated 2023-06-20
MONITEX® BT measuring hub
Operating/Assembly instructions
4
Assembly
4.1
Mounting instructions of the MONITEX® BT measuring hub
!
KTR-N
Sheet:
Edition:
49110 EN
7 of 21
3
Opening the housing is not required and may cause damage to the measuring shaft.
• Protection class
The MONITEX® BT measuring hub complies with protection class IP51 acc. to DIN EN 60529.
• Maintenance
The MONITEX® BT measuring hub is maintenance-free. Lubrication or cleaning is not necessary.
• Calibration
The transducer is calibrated when supplied. We recommend an annual inspection of the calibration.
The mounting position of MONITEX® BT is variable. The measurement system can be mounted both horizontally
and vertically. Vertical assembly may require a support in the bottom coupling hub.
4.2
Components of the MONITEX® BT measuring coupling
Components of the MONITEX® BT measuring coupling
Component
1
2
3 1)
4 2)
5 2)
6 2)
7 2)
8 2)
Quantity
1
1
1
1
1
1
see table 3
2
Subassembly
MONITEX® BT measuring hub
MONITEX® BT inductive head (inductive current transmission)
MONITEX® BT connection cable
ROTEX®/ROTEX® GS hub
ROTEX® GS spider
ROTEX® coupling flange N
Cap screws DIN EN ISO 4762 - 12.9
Setscrew DIN EN ISO 4029
1) not graphically displayed in illustration 3
2) Optionally available
Illustration 3: MONITEX® BT measuring coupling
Please observe protection
note ISO 16016.
Drawn:
Verified:
2024-02-07 Pz/Da
2024-02-08 Pz
Replacing:
Replaced by:
KTR-N dated 2023-06-20
KTR-N
Sheet:
Edition:
MONITEX® BT measuring hub
Operating/Assembly instructions
4
Assembly
4.3
Technical description
49110 EN
8 of 21
3
1. General description
The MONITEX® BT measuring hub has an integrated measuring system for measuring the current torque and
speed.
These data can be directly received by bluetooth compatible devices, e. g. mobile phones or tablets. Free apps
for Android and iOS are available in the app stores.
Those PCs that are able to receive data via bluetooth are also supported. The PC software can be downloaded
via the KTR homepage.

4.4
STOP
Please consider the respective system requirements of your device (see chapter 10.1).
Advice for finish bore of ROTEX®/ROTEX® GS hub resp. coupling flange N
The maximum permissible bore diameters D (see chapter
1 - technical data) must not be exceeded. If these figures
are disregarded, the coupling may tear. Rotating particles
may cause danger to life.
• Bores machined or remachined by the customer have to
observe concentricity respectively axial runout (see
illustration 4).
• Make absolutely sure to observe the figures for ØD.
• Carefully align the hubs when the finish bores are drilled.
• Provide for a setscrew according to DIN EN ISO 4029 with
a cup point or an end plate to axially fasten the hubs.
Illustration 4: Concentricity and axial runout
!
The customer bears the sole responsibility for all machining processes performed
subsequently on unbored or pilot bored as well as finish machined coupling components
and spare parts. KTR does not assume any warranty claims resulting from insufficient
remachining.
Table 4: Setscrew DIN EN ISO 4029
Size
Dimension G, G1 in mm
Dimension T, T1 in mm
Tightening torque TA in Nm
Please observe protection
note ISO 16016.
Drawn:
Verified:
28
M8
15
10
2024-02-07 Pz/Da
2024-02-08 Pz
42
M8
20
10
Replacing:
Replaced by:
KTR-N dated 2023-06-20
MONITEX® BT measuring hub
Operating/Assembly instructions
4
Assembly
4.5
Assembly of the coupling (general)

KTR-N
Sheet:
Edition:
49110 EN
9 of 21
3
We recommend to inspect bores, shaft, keyway and feather key for dimensional accuracy
before assembly.
Heating the hub or coupling flange lightly (approx. 80 °C) allows for an easier mounting on
the shaft.
STOP
Touching the heated components causes burns.
Please wear safety gloves.
!
With the assembly make sure that the distance dimension E or DBSE (see table 3) is
observed to allow for axial clearance of the spider when in operation.
Disregarding this advice may cause damage to the coupling.
4.6
Assembly of the hub resp. coupling flange N and the MONITEX® BT measuring hub
• Mount the coupling flange N on the shaft of the
driving side and the hub on the shaft of the driven
side (see illustration 5).
• The internal sides of the components must be flush
with the front sides of the shafts.
• Fasten the hub and coupling flange by tightening the
setscrews DIN EN ISO 4029 with a cup point
(tightening torques see table 4).
Illustration 5: Assembly of hub resp. coupling flange N
• Insert the MONITEX® BT measuring hub in front of
the coupling flange (see illustration 6).
• Hand-tighten the components first.
• Tighten the screws at the tightening torques TA
specified in table 3 by means of a suitable torque
key.
Illustration 6: Assembly of the MONITEX® BT measuring hub
• Insert the spider in the cam section of the hub (see
illustration 7).
• Shift the power packs in axial direction until the
distance dimension E or DBSE is achieved (see
illustration 2 and table 3).
• Centre the spider between the hub and the coupling
flange N and check the dimension E and S (see
illustration 2 and table 3).
Illustration 7: Assembly of spider
!
Having started up the measuring coupling, the wear of the spider has to be inspected at
regular maintenance intervals and the spider has to be replaced, if necessary.
Please observe protection
note ISO 16016.
Drawn:
Verified:
2024-02-07 Pz/Da
2024-02-08 Pz
Replacing:
Replaced by:
KTR-N dated 2023-06-20
KTR-N
Sheet:
Edition:
MONITEX® BT measuring hub
Operating/Assembly instructions
4
Assembly
4.7
Displacements - alignment of the ROTEX® GS couplings
49110 EN
10 of 21
3
In order to ensure a long service life of the components, the shaft ends have to be
accurately aligned. Please absolutely observe the displacement figures specified (see table
5). If the figures are exceeded, the measuring coupling will be damaged.
The more accurate the alignment of the coupling, the longer is its service life.
!
Please note:
• The displacement figures specified in table 5 are maximum figures which must not arise in parallel. If axial,
radial and angular displacement arises at the same time, these values must be reduced (see illustration 9).
Inspect with a dial gauge, ruler or feeler gauge whether the permissible displacement figures specified in table
5 can be observed.
Axial displacements
Radial displacements
Lmax = L +/- Ka
Angular displacements
Kw in mm = L1max - L1min
Illustration 8: Displacements
Examples of the displacement
combinations specified in illustration 9:
Example 1:
Kr = 30 %
Kw = 70 %
Illustration 9:
Combinations of
displacement
Example 2:
Kr = 60 %
Kw = 40 %
Ktotal = Kr + Kw  100 %
Table 5: Displacement figures
MONITEX® BT
size
ROTEX® GS
size
28/200
28
42/800
42
Please observe protection
note ISO 16016.
Spider GS
shore hardness
92 ShA
98 ShA
57 ShD
64 ShD
72 ShD
98 ShA
57 ShD
64 ShD
72 ShD
Drawn:
Verified:
Max. axial displacement
Ka in mm
+1.5 / -0.7
+2.0 / -1.0
2024-02-07 Pz/Da
2024-02-08 Pz
Max. radial displacement
Kr in mm
0.15
0.11
0.09
0.08
0.05
0.14
0.12
0.10
0.07
Replacing:
Replaced by:
Max. angular
displacement
Kw in degree
1.00
0.90
0.85
0.80
0.70
0.90
0.85
0.80
0.70
KTR-N dated 2023-06-20
MONITEX® BT measuring hub
Operating/Assembly instructions
KTR-N
Sheet:
Edition:
4
Assembly
4.8
Assembly of the MONITEX® BT inductive head (energy transducer)
49110 EN
11 of 21
3
a) Fastening of inductive head
Mounting of the inductive head is made by fastening
the mounting profile fitted on the back side to a
suitable fixture.
Illustration 10: Dimensions of inductive head
b) Arrangement of inductive head
The inductive head (energy transducer) is mounted radially beside the measuring hub inductively providing the
rotating unit with energy. The following items should be observed:
• The maximum distance is 10 mm, the maximum axial displacement from the centre is ±2.5 mm.
• The orientation is directed vertically to the axis of rotation.
• The front side of the transducer is directed to the external surface of the rotor.


Illustration 11: Correct positioning of the inductive head
Please observe protection
note ISO 16016.
Drawn:
Verified:
Illustration 12: Incorrect positioning of the inductive head
2024-02-07 Pz/Da
2024-02-08 Pz
Replacing:
Replaced by:
KTR-N dated 2023-06-20
MONITEX® BT measuring hub
Operating/Assembly instructions
5
Start-up
5.1
Electrical connections
KTR-N
Sheet:
Edition:
49110 EN
12 of 21
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a) Connection cable
The connection cable has a four-pole M8 circular connector that can be screwed together with the mating
connector of the inductive head (see illustration 13). Table 6 shows the pin assignment.
Table 6: Pin assignment
Colour
White
Black
Blue
Brown
Connection
Operating voltage +24 V
Operating voltage GND
Not assigned
Not assigned
Illustration 13: Connector plug
b) Operating voltage 24 V
The supply voltage is 24 V ±4 V direct current voltage
(DC). The current consumption is 200 mA at the
maximum.
c) Ground connection
To avoid interferences, the mounting aid resp. the
mounting bracket of the inductive head should be
grounded (see illustration 14).
Illustration 14: Grounding of inductive head
5.2
Operation
a) Switching on
Having positioned and connected the inductive head, the system can be switched on via the on/off switch. The
orange function LED on the inductive head lights up. The LEDs integrated in the rotor light up one after
another from inside to outside and indicate starting of the measurement.
b) Bluetooth signal
Having switched on the measuring hub the bluetooth signal is available for a mobile device or a PC. The
bluetooth device resp. the PC can now be coupled with MONITEX® BT. Having opened the app resp.the PC
software, the torque and speed signals are available.
c) Display
With speeds exceeding 300 rpm the rotating display switches on. The measurement values for torque and
speed can be read out directly on the sensor. If the distance of the inductive head to the rotor is too big, the
display shows the hint "distance" alerting about a termination of energy supply. In this case the distance
between the inductive head and the rotor must be investigated and the alignment must be inspected. The
centre of the display is 90 degrees at the right of the position of the inductive head.
Please observe protection
note ISO 16016.
Drawn:
Verified:
2024-02-07 Pz/Da
2024-02-08 Pz
Replacing:
Replaced by:
KTR-N dated 2023-06-20
MONITEX® BT measuring hub
Operating/Assembly instructions
6
KTR-N
Sheet:
Edition:
49110 EN
13 of 21
3
DAC analog output
MONITEX® BT DAC is an optionally available digital-to analog-converter. It automatically connects to a
MONITEX® BT coupling and converts the measured values torque and speed to analog signals.
6.1
DAC connections and technical data
1 - Power supply input
2 - Voltage output of speed (0 - 10 V)
3 - Voltage output of torque (-10 … 10 V)
4 - Current output of torque (4 … 20 mA)
5 - Current output of speed (4 … 20 mA)
6 - Push button T1
7 - Status LED
Connectors
Würth Elektronik, Order No.: 691351500004
Connector type signal outputs
Würth Elektronik, Order No.: 691351500002
Connector type 24 V DC power supply
Please observe protection
note ISO 16016.
Drawn:
Verified:
2024-02-07 Pz/Da
2024-02-08 Pz
Replacing:
Replaced by:
KTR-N dated 2023-06-20
KTR-N
Sheet:
Edition:
MONITEX® BT measuring hub
Operating/Assembly instructions
6
DAC analog output
6.1
DAC connections and technical data
49110 EN
14 of 21
3
Table 7: Technical data of DAC
Electrical data
Power supply DC in V
Max. current consumption in mA
24 ± 4
< 100
Torque outputs
-10 … +10
4 … 20
500
200
Voltage output in V
Current output in mA
Converter frequency in Hz
Bandwidth in Hz
Speed outputs
0 … 10
4 … 20
5
3.5
Voltage output in V
Current output in mA
Converter frequency in Hz
Bandwidth in Hz
Resistance values
Output resistance of voltage output in ohm
Maximum current loop resistance in ohm
1000
560
Inaccuracies of converter
Voltage outputs in % 1)
Current outputs in % 1)
0.05
0.1
Mechanical data
Dimensions in mm (L x B x H)
Weight in g
100 x 62 x 26
85
LED
Status LED
red = not connected
green = connected
28/200
20
25
350
218.75
42/800
80
100
350
218.75
Scaling
Coupling size of MONITEX® BT
Voltage output torque in Nm/V
Output current torque in Nm/mA
Voltage output speed in rpm/V
Output current speed in rpm/mA
1) Referring to upper range value
6.2
DAC operation
a) DAC bluetooth connection
The status LED shows the connection status: green = connected, red = not connected.
During the first startup the DAC automatically connects to the next MONITEX ® BT coupling, which is not
linked. The DAC memorises the connected MONITEX ® BT In the following connections the DAC will always
pair with the memorised MONITEX® BT.
If linking with another measuring hub is to be made, the already coupled MONITEX ® BT hub must be switched
off while the new MONITEX® BT hub must be switched on. The new connection will be established when the
push button T1 is pressed for > 3 seconds. The status LED flashes green for confirmation, afterwards the DAC
connects to the new measuring hub.
b) Auto offset
If the push button T1 is pressed shortly, < 2seconds, the torque outputs of the DAC will be set to 0 Nm. The
status LED flashes red once for confirming the auto offset.
c) Reception error
If the status LED flashes red during a connection, the bluetooth reception is poor. Reduce the distance to the
measuring hub.
Please observe protection
note ISO 16016.
Drawn:
Verified:
2024-02-07 Pz/Da
2024-02-08 Pz
Replacing:
Replaced by:
KTR-N dated 2023-06-20
MONITEX® BT measuring hub
Operating/Assembly instructions
7
KTR-N
Sheet:
Edition:
49110 EN
15 of 21
3
Disposal
In respect of environmental protection we would ask you to dispose of the packaging resp. products on
termination of their service life in accordance with the legal regulations resp. standards that apply.
8
Maintenance and service
The MONITEX® BT is a low-maintenance torque measuring hub. We recommend to perform a visual inspection
on the coupling at least once a year. Pay special condition to the condition of the spiders of the ROTEX ® GS
coupling.
• Since the flexible machine bearings of the driving and driven side settle during the course of load, inspect the
alignment of the measuring coupling and re-align, if necessary.
• The components have to be inspected for damages.
• The screw connections have to be visually inspected.

9
Please consider our operating/assembly instructions KTR-N 45510 additionally when using
the ROTEX® GS coupling.
Services, customer service addresses
If requested, we are pleased to perform the calibration of your measuring hub 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.

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.
KTR Systems GmbH
Carl-Zeiss-Str. 25
D-48432 Rheine
Phone: +49 5971 798-0
E-mail: [email protected]
Please observe protection
note ISO 16016.
Drawn:
Verified:
2024-02-07 Pz/Da
2024-02-08 Pz
Replacing:
Replaced by:
KTR-N dated 2023-06-20
MONITEX® BT measuring hub
Operating/Assembly instructions
10
KTR-N
Sheet:
Edition:
49110 EN
16 of 21
3
Description of the MONITEX® BT app
10.1 System requirements
The KTR-MONITEX® BT app is available for Android and IOS in the app
stores free of charge. Both versions have the same functionality.
The versions of the operating systems from Android 6 and iOS 15.5 1) are
supported.
1) On old devices with low processing power the performance may be affected with long
measurements.
MONITEX® BT
Position the inductive head acc. to chapter 4.8 and switch on the power
supply. An animation of the rotor display informs about the proper function.
Switch-on animation
Please switch to the system settings and activate the bluetooth mode.
• With Apple devices you have to activate the function "allow new
connections". The sensor is usually not displayed in the system menu,
since linking is made by the app.
• Even if the name of the sensor appears in the system menu, do not
couple it at this point, but only with the app. If the sensor is coupled in the
system menu, it is no longer visible for the app.
Bluetooth menu
10.2 Linking of hardware
Please start the app.
Now the app is in the starting mode.
Start screen.
Please observe protection
note ISO 16016.
Drawn:
Verified:
2024-02-07 Pz/Da
2024-02-08 Pz
Replacing:
Replaced by:
KTR-N dated 2023-06-20
MONITEX® BT measuring hub
Operating/Assembly instructions
10
KTR-N
Sheet:
Edition:
49110 EN
17 of 21
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Description of the MONITEX® BT app
10.2 Linking of hardware
Having activated the scan button a new window is opened listing all
MONITEX® BT sensors that are available. The number displayed
corresponds to the last digits of the ident number of the sensor. The ident
number can be found as a label on the outer edge of the coupling and in the
calibration record.

Please note that a sensor is not listed if it is already in
connection with another device. If the sensor shall be
used, its linking must be disconnected first. The maximum
range may vary depending on the mounting situation.
Scan function
10.3 Measuring mode
Please select a sensor. The display switches into the measuring mode.
Measuring is started via the button "play". The measuring data is
automatically saved and can be processed later. Below the diagram a timer
informs about the expired test duration.
The display of the smartphone/tablet can be switched off during measuring.
Measuring is continued in the background.
Measuring mode
The display limits comply with the measuring range of the connected sensor.
The diagram can be shifted and zoomed in x and y direction.
The button "reset zoom" allows to set back the display range to standard
values.
The curves can be shifted to the beginning of the measurement, so that
incidents in the past can be analysed during the ongoing measurement as
well. For that purpose simply shift the curve right as far as necessary. The
button "go live" directs you to the end of the diagram again. The landscape
view enlarges the respective diagram tapping the diagramme surface once.
Please observe protection
note ISO 16016.
Drawn:
Verified:
2024-02-07 Pz/Da
2024-02-08 Pz
Replacing:
Replaced by:
KTR-N dated 2023-06-20
MONITEX® BT measuring hub
Operating/Assembly instructions
10
KTR-N
Sheet:
Edition:
49110 EN
18 of 21
3
Description of the MONITEX® BT app
10.3 Measuring mode
Using the number and curve icon the current view can be switched between
"number display" and "curve display".
On the left side of the numerical display the current values are shown. On
the right side maximum values, minimum values and average values of the
ongoing measurement are continuously calculated.
The period of calculation is displayed in a timer. The calculation of the
extreme values starts again once the timer is reset.
10.4 Settings
The gear wheel ícon refers to the menu "settings". The function "Auto offset"
allows to set the torque output to 0 Nm.
Limits serve for producing an alert in case if a defined range is exceeded or
fallen below. The alert can be visually signalized by discolouration of the
diagram background or acoustically by a warning signal. The volume can be
set via the media volume in the system menu.
The limits of the selected ranges are displayed in the diagram by dotted
lines.
Please observe protection
note ISO 16016.
Drawn:
Verified:
2024-02-07 Pz/Da
2024-02-08 Pz
Replacing:
Replaced by:
KTR-N dated 2023-06-20
MONITEX® BT measuring hub
Operating/Assembly instructions
10
KTR-N
Sheet:
Edition:
49110 EN
19 of 21
3
Description of the MONITEX® BT app
10.5 Saving of measuring data

The measuring data is automatically saved as soon as the measurement is started via the
button "play".
If a measurement is finished by the stop button, the button "share" is
displayed, it opens a window with possibilities to send or save thee
measured data.
The data format comprises a table in CSV format indicating the measuring
time in s, the torque in Nm and the speed in rpm. The semicolon is used as a
separator.
The sampling frequency of the torque is 60 Hz. The sampling frequency of
the speed signal is 3 Hz.
Please observe protection
note ISO 16016.
Drawn:
Verified:
2024-02-07 Pz/Da
2024-02-08 Pz
Replacing:
Replaced by:
KTR-N dated 2023-06-20
MONITEX® BT measuring hub
Operating/Assembly instructions
11
KTR-N
Sheet:
Edition:
49110 EN
20 of 21
3
Declaration of conformity
11.1 EU Declaration of conformity
EU Declaration of conformity
The manufacturer - KTR Systems GmbH, Carl-Zeiss-Str. 25, D-48432 Rheine - states that the
MONITEX® BT measuring hub
described in the present operating/assembly instructions is in accordance with the following directive:
2014/30/EU
Directive of the European Parliament and European Council dated
February 26. 2014 for harmonizing the legal provisions of the
member states regarding electromagnetic compatibility
Standards applied:
EN IEC 61000-6-2:
EN 61000-4-2:
EN IEC 61000-4-3:
EN 61000-4-4:
EN 61000-4-6:
EN IEC 61000-6-4:
EN 55011:
Rheine,
Place
Immunity standard for industrial environments
Electrostatic discharge immunity test (ESD)
Radiated, radio-frequency, electromagnetic field immunity test
Electrical fast transient/burst immunity test
Immunity to conducted disturbances, induced by radio-frequency fields
Emission standard for industrial environments
Intensity of radio interference area (class B)
2022-07-18
Date
Please observe protection
note ISO 16016.
Drawn:
Verified:
i. V.
Reinhard Wibbeling
Engineering/R&D
2024-02-07 Pz/Da
2024-02-08 Pz
i. A.
Jürgen Kösters
Product Manager
Replacing:
Replaced by:
KTR-N dated 2023-06-20
MONITEX® BT measuring hub
Operating/Assembly instructions
11
KTR-N
Sheet:
Edition:
49110 EN
21 of 21
3
Declaration of conformity
11.2 UK Declaration of conformity
UK Declaration of conformity
The manufacturer - KTR Systems GmbH, Carl-Zeiss-Str. 25, D-48432 Rheine - states that the
MONITEX® BT measuring hub
described in the present operating/assembly instructions is in accordance with the following directive:
SI 2016/1091
Electromagnetic Compatibility Regulations 2016
Standards applied:
EN IEC 61000-6-2:
EN 61000-4-2:
EN IEC 61000-4-3:
EN 61000-4-4:
EN 61000-4-6:
EN IEC 61000-6-4:
EN 55011:
Immunity standard for industrial environments
Electrostatic discharge immunity test (ESD)
Radiated, radio-frequency, electromagnetic field immunity test
Electrical fast transient/burst immunity test
Immunity to conducted disturbances, induced by radio-frequency fields
Emission standard for industrial environments
Intensity of radio interference area (class B)
Authorised representative:
KTR U.K. Ltd.
Robert House
Unit 7, Acorn Business Park
Woodseats Close
Sheffield
United Kingdom, S8 0TB
Year of UKCA marking: 2022
Rheine,
Place
2022-07-18
Date
Please observe protection
note ISO 16016.
Drawn:
Verified:
i. V.
Reinhard Wibbeling
Engineering/R&D
2024-02-07 Pz/Da
2024-02-08 Pz
i. A.
Jürgen Kösters
Product Manager
Replacing:
Replaced by:
KTR-N dated 2023-06-20
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