Balluff BTL7-A5 Series User manual

II 3 G Ex nA IIC T4 X
II 2 D Ex tb IIIC T135°C X IP6x
User's Guide
english
BTL7-A/C/E/G5 __ -M ____ -K(8)-NEX-SR32/K___

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Ignition protection
“nA” and “tb”
BTL7-A/C/E/G5__-M____-K(8)-NEX-SR32/K___
Micropulse Transducer - Rod Style
1 Notes to the user 5
1.1 Validity 5
1.2 Scope of delivery 5
1.3 Qualified personnel 5
1.4 Languages 5
1.5 Symbols and conventions 5
1.6 Explanationof the warnings 5
1.7 Disposal 5
2 ATEX safety notes 6
2.1 Intended use 6
2.2 Safety measures 6
2.3 Approvals, standards, and conformity 6
2.4 Use and inspection 7
2.4.1 Device category and suitability 7
2.4.2 Special conditions (“X” symbol) 7
2.4.3 Operator documents 7
2.5 Assembly, installation, and setup 7
2.6 Connectors and magnets 8
2.7 Maintenance, inspection, repair 8
3 Construction and function 9
3.1 Construction 9
3.2 Function 9
4 Installation and connection 10
4.1 Installation guidelines 10
4.2 Preparing for installation 10
4.3 Installing the transducer 11
4.3.1 Installation recommendation for hydraulic cylinders 11
4.4 Electrical connection 12
4.4.1 Connector SR32/cable connection K__ 12
4.5 Shielding and cable routing 12
5 Startup 13
5.1 Starting up the system 13
5.2 Operating notes 13
6 Calibration procedure 14
6.1 Programming inputs 14
6.2 Calibration procedure notes 14
6.3 Calibration procedure overview 15
6.3.1 Teach-in 15
6.3.2 Adjusting 16
6.3.3 Reset 16
7 Teach-in 17
8 Adjusting 18
9 Resetting all values (reset) 20

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Ignition protection
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BTL7-A/C/E/G5__-M____-K(8)-NEX-SR32/K___
Micropulse Transducer - Rod Style
10 Technical data 21
10.1 Accuracy 21
10.2 Ambient conditions 21
10.3 Supply voltage (external) 21
10.4 Output 21
10.5 Input 21
10.6 Dimensions, weights 22
11 Accessories 23
11.1 Magnets 23
11.2 Connectors and cables 24
11.3 Calibration box 24
12 Type code breakdown 25
13 Appendix 26
13.1 Converting units of length 26
13.2 Part label 26

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Ignition protection
“nA” and “tb”
1.1 Validity
This guide describes the construction, function and setup
options for the BTL7 Micropulse Transducer with analog
interface. It applies to types
BTL7-A/C/E/G5 __ -M ____ -K(8)-NEX-SR32/K__
(see Type code breakdown on page25).
Section2 “ATEX safety notes” contains important
information on and requirements for using the transducer
in explosive areas. The other sections in this user’s guide
include additional information that must be taken into
account for areas not classified as explosive zones as well.
1.2 Scope of delivery
– BTL7 transducer
– 6 mounting screws
– User’s guide (incl. declaration of conformity)
You can find the declaration of conformity for
your specific device in the download area at
www.balluff.com. Please enter the type
designation or the ordering code in the search
field.
Connectors and magnets are available in
various models, which is why they must be
ordered separately (see Accessories from
page23).
1.3 Qualified personnel
This user’s guide is intended for technical personnel who
have the appropriate knowledge for proper selection,
installation, and operation.
1.4 Languages
The original user’s guide was written in German. Versions
in other languages are translations of the original user’s
guide. The information in the original user’s guide will apply
if the contents of the translated versions are not clear or
the information is contradictory.
Do not start up the transducer if you do not have a user’s
guide in the language of the country where the product will
be used. In such cases, please contact BALLUFF.
1.5 Symbols and conventions
Individual instructions are indicated by a preceding
triangle.
►Instruction 1
Action sequences are numbered consecutively:
1. Instruction 1
2. Instruction 2
Note, tip
This symbol indicates general notes.
1.6 Explanationof the warnings
Always observe the warnings in these instructions and the
measures described to avoid hazards.
The warnings used here contain various signal words and
are structured as follows:
SIGNAL WORD
Hazard type and source
Consequences if not complied with
►Measures to avoid hazards
The individual signal words mean:
NOTICE
Identifies a hazard that could damage or destroy the
product.
DANGER
The general warning symbol in conjunction with the
signal word DANGER identifies a hazard which, if not
avoided, will certainly result in death or serious injury.
1.7 Disposal
►Observe the national regulations for disposal.
1 Notes to the user
BTL7-A/C/E/G5__-M____-K(8)-NEX-SR32/K___
Micropulse Transducer - Rod Style

6english
Ignition protection
“nA” and “tb”
2.1 Intended use
In line with its identification, this micropulse transducer is
suitable as electrical equipment for use in gas and dust
explosive areas. When installed in a machine or system,
the transducer forms a position measuring system in
conjunction with a controller or evaluation unit and may
only be used for this purpose.
When selecting the electrical equipment, the person
setting up the machine or system is responsible for
assessing its suitability for the planned area of application.
The information in the user’s guide and other applicable
safety regulations and provisions must be observed during
set-up. Flawless function is ensured only when using
original BALLUFF accessories. Use of any other
components will void the warranty.
The operator of the machine or system must ensure that
the transducer is applied under the permissible operating
conditions in line with the information in this user’s guide
and in compliance with the applicable safety regulations
and provisions.
Unauthorized interventions, non-permissible use, or
application outside the permissible operating conditions
will result in the loss of warranty and liability claims against
the manufacturer.
2.2 Safety measures
The persons setting up and operating the machine or
system must take steps to ensure that a malfunction in the
transducer will not result in hazards to persons or
equipment. If there are any indications of damage or
malfunctions, the transducer must be immediately taken
out of operation and secured against unauthorized use.
Even with correct explosion protection, residual risks
remain that could pose a hazard to persons and systems
when the device is correctly operated or if there are any
fault states.
2.3 Approvals, standards, and conformity
The CE Mark verifies that our products
meet the requirements of the current
EMC Directive as well as the ATEX
Directive. Compliance is confirmed with
the enclosed declaration of conformity
from the manufacturer.
The transducer meets the requirements of the following
product standard:
– EN61326-2-3 (noise immunity and emission)
Emission tests:
– RF emission
EN55011
Noise immunity tests:
– Static electricity (ESD)
EN 61000-4-2 Severity level3
– Electromagnetic fields (RFI)
EN 61000-4-3 Severity level3
– Electrical fast transients (burst)
EN 61000-4-4 Severity level3
– Surge
EN 61000-4-5 Severity level2
– Conducted interference induced
by high-frequency fields
EN 61000-4-6 Severity level3
– Magnetic fields
EN 61000-4-8 Severity level4
The transducer with identification II3GEx
nAIICT4X and II2DExtbIIICT135°CXIP6x
fulfills the requirements for electrical equipment for
explosive areas in accordance with the following
standards:
– EN60079-0:General requirements
– EN60079-15:Ignition protection “n”
– EN60079-31:Ignition protection “t”
In addition to the ATEX requirements, the
transducer has been authenticated under
certificate number
IECExEPS13.0004X.
The current status of the certificate and further information
can be found under www.iecex.com in the “Certified
Equipment Scheme” section. The certificate number is
indicated on the part label.
Further applicable safety regulations and standard
requirements must be observed during selection, set-up,
and operation:
– Special conditions for safe operation (“X” symbol)
– Requirements for occupational safety
– Requirements for explosion protection
– Electrical installations erection in explosive
atmospheres (DIN EN 60079-14)
– Further regulations
More detailed information on the guidelines,
approvals, and standards is included in the
declaration of conformity.
2 ATEX safety notes
BTL7-A/C/E/G5__-M____-K(8)-NEX-SR32/K___
Micropulse Transducer - Rod Style

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Ignition protection
“nA” and “tb”
2.4 Use and inspection
2.4.1 Device category and suitability
The transducer has been classified as electrical equipment
in device group II, i.e. it is suitable for all explosive areas,
with the exception of fire damp-prone mines. It may be
used in gas and dust explosive areas in accordance with
the following descriptions.
Gas explosion protection
Device category II3G covers devices that have been
designed to ensure a normal level of safety during normal
operation within the operational parameters stated by the
manufacturer. Devices in the category may be used in
zone2, i.e. in areas in which an explosive atmosphere
caused by gases, vapors, or mist is not expected. If such
an atmosphere develops, this is very likely to occur only
seldom and for a short period.
The ignition protection type nA ensures that the electrical
equipment is unable to ignite a surrounding explosive
atmosphere during normal operation and under specific
abnormal conditions.
The risk of sparks is minimized.
Gas group IIC indicates that the transducer can be used in
all gases in compliance with the temperature class.
Temperature class T4 indicates that the outer surface
temperature of the transducer is below 135°C, even if the
permissible operating conditions are unfavorable. As a
result, an explosive gas atmosphere with an ignition
temperature of over 135°C cannot be ignited.
Dust explosion protection
Device category II 2 D covers devices that have been
designed to ensure the required amount of safety, even in
case of frequent device malfunctions or error states which
are generally to be expected. Devices in this category may
be used in zone21 in which an explosive atmosphere
caused by dust/air mixtures may occasionally occur.
The ignition protection type tb indicates that the electrical
equipment is protected against dust entry by housing.
Dust group IIIC covers possible use in all areas with an
explosive dust atmosphere, both with conductive and
non-conductive dusts and flammable fibers.
The temperature specification T135°C indicates that the
external surface temperature of the transducer is below
135°C under all conditions of the device category.
IP6x confirms the dust resistance of the housing.
2.4.2 Special conditions (“X” symbol)
The “X” symbol indicates special conditions that must be
noted for safe operation:
– The permissible ambient temperature is limited to
−40°C to +60°C.
– The impact resistance test was done in accordance
with a low degree of mechanical risk.
– Cable and line inlets were tested with reduced tensile
force in accordance with EN60079-0. This is why the
connection cable must be routed in a permanent
location and protected against tension and rotary loads
using an additional clamp. Drag chains may not be
used.
2.4.3 Operator documents
Zone classification in the system is the responsibility of the
operator and must be documented in an explosion
protection document. This document must also contain
the hazard analysis and assessment, proof of training,
maintenance plans and other documents as required
under Directive 1999/92/EC.
We expressly recommend including the user’s guide in the
operator’s documentation. For safety reasons, it must be
taken over completely and without any changes.
2.5 Assembly, installation, and setup
Assembly, installation, and setup of the transducer must
not be done in an explosive atmosphere.
Protect the transducer from damage and wear. In addition
to mechanical protection, this also includes precautions to
prevent non-permissible operating conditions and damage
due to environmental influences.
Note that the position measuring system must be
connected to the potential compensation system in
accordance with the requirements in EN60079-14. The
external connection for the transducer is accomplished by
means of metallic conducting installation in a grounded
area. The flange and housing are mechanically fixed with
electrically conductive connections, so that no potential
differences can occur between them. The cable shield is
connected to the housing and must be connected to the
potential of the system’s control cabinet.
2ATEX safety notes (continued)
BTL7-A/C/E/G5__-M____-K(8)-NEX-SR32/K___
Micropulse Transducer - Rod Style

8english
Ignition protection
“nA” and “tb”
Do not disconnect the BKS-S___ connector of the
transducer in explosive areas if it is under voltage! This is
why the following warning label is affixed to transducers
with plug connections.
The connection cable must be routed in a permanent
location and protected against tension and rotary loads
using an additional clamp. Drag chains may not be used.
The open line ends are to be connected outside the
classified zones or inside an approved housing.
The transducer’s IP protection must also be maintained
when unplugged. If dust or water accumulates, a suitable
protective cap must be attached to the connector.
The calibration box is not approved for gas-explosive
areas. As a result, the transducer may not be adjusted in a
potentially explosive atmosphere. The calibration box must
be removed from the installation for operation.
2.6 Connectors and magnets
Permissible connectors and magnets are listed in section
11 “Accessories”.
For transducers with plug connections, only the following
connectors with cables that have been preassembled at
the factory are tested and approved:
– BKS-S32M-__
– BKS-S33M-__
Only the magnet versions listed in section 11 “Accessories”
may be used.
If another connector, cable, or magnet is used, the
operator must ensure compliance with the explosion
protection requirements.
2.7 Maintenance, inspection, repair
The measuring principle used in this transducer is
maintenance-free and wear-free. The operator must
regularly inspect the transducer for signs of damage or
malfunctions in line with the operating conditions and
environmental influences. If any damage or wear is found,
the transducer must be immediately taken out of
operation.
Only service technicians from BALLUFF GmbH may repair
defective transducers. Intervention in the product by the
operator is not permitted due to safety reasons.
The transducer’s housing may not be opened or loosened!
This is why the following warning label is affixed over a gap
in the housing.
開けないでください。
Não abrir
Не вскрывать
2ATEX safety notes (continued)
BTL7-A/C/E/G5__-M____-K(8)-NEX-SR32/K___
Micropulse Transducer - Rod Style

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Ignition protection
“nA” and “tb”
Fig. 3-1:
30°
34 40-1
6
Ø D1
Ø 18 h6
60
25
20.5
G
Ø 79
Ø 64
Ø 6.4
Ø 11
86
20.5
11.5
~18
6
Version D1 G
…-K-… 10.2 mm Thread
M4x4/6deep
…-K8-… 8 mm No thread
Transducer BTL7-…-K(8)-… transducer, construction and function
3.1 Construction
Electrical connection: The electrical connection is made
via a cable or a connector (see Type code breakdown on
page25).
Housing: Housing containing the processing electronics.
Fastening: For secure fastening, tighten the transducer
with cylinder screws (ISO4762, M6×16-A2-70) at all
6mounting holes (see Figure 3-1). All screws must be
tightened with 3.5Nm.
The transducers with Ø 10.2 mm have an additional thread
at the end of the rod to support larger nominal lengths.
Magnet: Defines the position to be measured on the
waveguide. Magnets are available in various models and
must be ordered separately (see Accessories on page23).
Nominal length: Defines the available measuring range.
Rods with various nominal lengths from 25 mm to
5500mm are available depending on the version:
– Ø10.2mm: Nominal length from 25mm to 5500mm
– Ø8mm: Nominal length from 25mm to 1016mm
Damping zone: Area at the end of the rod that cannot be
used for measurements, but which may be passed over.
3 Construction and function
BTL7-…-SR32
BTL7-… cable
Mounting
surface
1) Unusable area
2) Not included in scope of delivery
Damping zone
Magnet
1)
Nominal length =
Measuring range
2)
1)
6 holes to fasten
the transducer
3.2 Function
The Micropulse Transducer contains the waveguide which
is protected by an outer stainless steel tube (rod). A
magnet is moved along the waveguide. This magnet is
connected to the system part whose position is to be
determined.
The magnet defines the position to be measured on the
waveguide.
An internally generated INIT pulse interacts with the
magnetic field of the magnet to generate a torsional wave
in the waveguide which propagates at ultrasonic speed.
The component of the torsional wave which arrives at the
end of the waveguide is absorbed in the damping zone to
prevent reflection. The component of the torsional wave
which arrives at the beginning of the waveguide is
converted by a coil into an electrical signal. The travel time
of the wave is used to calculate the position. Depending
on the version, this information is made available as a
voltage or current output with a rising or falling gradient.
BTL7-A/C/E/G5__-M____-K(8)-NEX-SR32/K___
Micropulse Transducer - Rod Style

10 english
Ignition protection
“nA” and “tb”
4.1 Installation guidelines
Non-magnetizable material
min. Ø D21)
Magnet
Non-magnetizable material
1) Min. ØD2= Minimum diameter of the bore (seeTab.4-1)
Fig. 4-1: Installation in non-magnetizable material
Magnetizable material
If using magnetizable material, the transducer must be
protected against magnetic interference through suitable
measures (e.g. spacer ring made of non-magnetizable
material, a suitable distance from strong external magnetic
fields).
Spacer ring made of non-magnetizable
material
Magnet
1)
min. Ø D2
Spacer ring made of non-magnetizable
material
Magnet
1) Min.ØD2=Minimum diameter of the bore (seeTab.4-1)
Fig. 4-2: Installation in magnetizable material
Rod diameter Bore diameter D2
10.2mm At least 13mm
8mm At least 11mm
Tab. 4-1: Bore diameter if installed in a hydraulic cylinder
4.2 Preparing for installation
Installation note: We recommend using non-
magnetizable material to mount the transducer and
magnet.
Horizontal assembly: For horizontal assembly with
nominal lengths > 500 mm, support the rod and tighten it
at the end if necessary (only possible with a diameter of
10.2mm).
Hydraulic cylinder: If installed in a hydraulic cylinder,
ensure that the minimum value for the bore diameter of the
support piston is complied with (seeTab.4-1).
Fitting bore: The mounting surface of the BTL housing
must make full contact with the supporting surface. A
suitable O-ring must completely seal the bore, i.e. the
countersink for the O-ring must be produced in
accordance with Figure4-3.
Fig. 4-3: Fitting bore for installing the BTL with O-ring
Magnet: Various magnets are available for the BTL7
transducer (See Accessories on page23).
4 Installation and connection
Fitting bore
Countersink for
O-ring 15.4×2.1
BTL7-A/C/E/G5__-M____-K(8)-NEX-SR32/K___
Micropulse Transducer - Rod Style

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Ignition protection
“nA” and “tb”
4.3 Installing the transducer
NOTICE
Interference in function
Improper installation can compromise the function of the
transducer and result in increased wear.
►The mounting surface of the transducer must make
full contact with the supporting surface.
►The bore must be perfectly sealed (O-ring/flat seal).
►For secure fastening, tighten the transducer with
cylinder screws (ISO4762, M6×16-A2-70) at all
6mounting holes.
►All screws must be tightened with 3.5Nm.
►Install the magnet (accessories).
►From 500mm nominal length: support the rod and
tighten it at the end if necessary (only possible with a
diameter of 10.2mm).
4.3.1 Installation recommendation for hydraulic
cylinders
If you seal the hole with a flat seal, the max. operating
pressure will be reduced in accordance with the larger
pressurized surface.
If installing horizontally in a hydraulic cylinder (nominal
lengths>500mm), we recommend affixing a slide element
to protect the rod end from wear.
Dimensioning of the detailed solutions is the
responsibility of the cylinder manufacturer.
The slide element material must be suitable for the
appropriate load case, medium used, and application
temperatures. E.g. Torlon, Teflon or bronze are all possible
materials.
Fig. 4-4:
Slide element
Magnet
Example 1, transducer installed with slide element
The slide element can be screwed on or bonded.
►Secure the screws so they cannot be loosened or lost.
►Select a suitable adhesive.
Slide element
rod
Piston rod
Slide surface
Flow gap
Fig. 4-5: Detailed view and top view of slide element
There must be a gap between the slide element and piston
bore that is sufficiently large for the hydraulic oil to flow
through.
Options for fixing the magnet:
– Screws
– Threaded ring
– Press fitting
– Notches (center punching)
If installed in a hydraulic cylinder, the magnet
should not make contact with the rod.
The hole in the spacer ring must ensure optimum guidance
of the rod by the slide element.
Fig. 4-6:
Spacer ring
Magnet
Fixing of magnet
Fixing of magnet
An example of how to install the transducer with a
supporting rod is shown in Fig.4-7 on page12.
4Installation and connection (continued)
BTL7-A/C/E/G5__-M____-K(8)-NEX-SR32/K___
Micropulse Transducer - Rod Style

12 english
Ignition protection
“nA” and “tb”
Fig. 4-7:
Magnet
(e.g. BTL-P-1028-15R)
Supporting rod made of non-magnetizable material
Example2, transducer installed with supporting rod
4.4 Electrical connection
Depending on the model, the electrical connection is made
using a cable (BTL7-…-K) or a connector (BTL7-…-SR32).
The connection or pin assignments for the respective
version can be found in Table4-2.
Note the information on shielding and cable
routing.
4Installation and connection (continued)
4.4.1 Connector SR32/cable connection K__
Pin Cable color -A_10 -G_10 -C_00 -C_70 -E_00 -E_70
Fig. 4-8: Pin assignment of SR32
(view of connector pins of
transducer), 8-pin M16
circular plug
1 YE yellow Not used1) 0…20 mA 20…0 mA 4…20 mA 20…4 mA
2 GY gray 0 V
3 PK pink 10…0V 10…−10V 10…0V3)
4 RD red La (programming input)
5 GN green 0…10V −10…10V 0…10V3)
6 BU blue GND2)
7 BN brown 10…30V
8 WH white Lb (programming input)
1) Unassigned leads can be connected to the GND on the controller side but not to the shield.
2) Reference potential for supply voltage and EMC-GND.
3) The voltage outputs may exhibit a minimal offset to the harmonized current output.
Tab. 4-2: Connection assignment BTL7-…-SR32/K__
4.5 Shielding and cable routing
Defined ground!
The transducer and the control cabinet must be
at the same ground potential.
Shielding
To ensure electromagnetic compatibility (EMC), observe
the following:
– Connect transducer and controller using a shielded
cable.
Shielding: Braided copper shield with minimum 85%.
– Connector version: Shield is internally connected to
connector housing.
– Cable version: On the transducer side, the cable
shielding is connected to the housing.
Ground the cable shielding on the controller side
(connect with the protective earth conductor).
Magnetic fields
The linear encoder is a magnetostrictive system. It is
important to maintain adequate distance between the
transducer/holding cylinder and strong, external magnetic
fields.
Cable routing
Do not route the cable between the transducer, controller,
and power supply near high voltage cables (inductive stray
noise is possible).
The cable must be routed tension-free.
Bending radius for fixed cable
The bending radius for a fixed cable must be at least five
times the cable diameter.
Cable length
BTL7-A/G Max. 30 m1)
BTL7-C/E Max. 100 m1)
1) Prerequisite: Construction, shielding and routing preclude the effect of
any external noise fields.
Tab. 4-3: Cable lengths BTL7
BTL7-A/C/E/G5__-M____-K(8)-NEX-SR32/K___
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Ignition protection
“nA” and “tb”
5 Startup
5.1 Starting up the system
DANGER
Uncontrolled system movement
When starting up, if the position measuring system is
part of a closed loop system whose parameters have not
yet been set, the system may perform uncontrolled
movements. This could result in personal injury and
equipment damage.
►Persons must keep away from the system's
hazardous zones.
►Startup must be performed only by trained technical
personnel.
►Observe the safety instructions of the equipment or
system manufacturer.
1. Check connections for tightness and correct polarity.
Replace damaged connections.
2. Turn on the system.
3. Check measured values and adjustable parameters
and readjust the transducer, if necessary.
Check for the correct values at the null point
and end point, especially after replacing the
transducer or after repair by the manufacturer.
5.2 Operating notes
– Check the function of the linear encoder and all
associated components on a regular basis.
– Take the linear encoder out of operation whenever
there is a malfunction.
– Secure the system against unauthorized use.
BTL7-A/C/E/G5__-M____-K(8)-NEX-SR32/K___
Micropulse Transducer - Rod Style

14 english
Ignition protection
“nA” and “tb”
Output
gradient
Linear
transducer
Unit Min.
value
Null
value
Indication
for
adjustment
Indication
for teach-in
End
value
Max.
value
Error
value
Rising BTL7-A… V −0.5 0 2.0 4.0 +10.0 +10.5 +10.5
BTL7-G… V −10.5 −10.0 2.0 4.0 +10.0 +10.5 +10.5
BTL7-C… mA 0 0 6.0 12.0 20.0 20.4 20.4
BTL7-E… mA 3.6 4.0 6.0 12.0 20.0 20.4 3.6
Falling BTL7-A… V +10.5 +10.0 2.0 4.0 0 −0.5 −0.5
BTL7-G… V +10.5 +10.0 2.0 4.0 −10.0 −10.5 −10.5
BTL7-C… mA 20.4 20.0 6.0 12.0 0 0 20.4
BTL7-E… mA 20.4 20.0 6.0 12.0 4.0 3.6 3.6
Tab. 6-1: Value table for teach-in and inverting
6.1 Programming inputs
Programming inputs La and Lb must be used in order to
make settings. A programming input at 10 to 30V
corresponds to activation (high active).
The Balluff BTL7-A-CB02-… calibration box can be used
for this (see Accessories on page24).
Automatic deactivation!
If no signals are transmitted via the
programming inputs for approx.10min,
programming mode is automatically ended.
6.2 Calibration procedure notes
Prerequisites
– Programming inputs are connected.
– The transducer is connected to the system controller.
– Voltage or current values from the transducer can be
read (using a multimeter, the system control or the
calibration box).
Fig. 6-1: Connecting the BTL7-A-CB02-S… calibration box
6 Calibration procedure
Values for null and end point
– Any desired position of the magnet can be used as the
null or end point. However, the null and end points may
not be reversed.
– The absolute null and end points must lie within the
minimum or maximum range of what can be output
(see value table).
The last set values are always saved, regardless
of whether the setting was ended using the
programming inputs or automatically after
10min have expired.
Value table for teach-in and inverting
The following examples refer to transducers
with 0 to 10 V or 4 to 20 mA output.
Linear transducer Calibration box Supply
Adapter cable with connector
(socket) Adapter cable with connector (luster terminal)
6-pin8-pin
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6.3 Calibration procedure overview
6.3.1 Teach-in
The factory set null point and end point is replaced by a
new null point and end point. The null point and end point
can be set separately, the output gradient changes.
The detailed procedure for teach-in is described
on page17.
Steps:
►Move magnet to the new null position.
►Read new null point by activating the programming
inputs.
⇒The current end point remains the same.
New null point
Before
After
Fig. 6-2: Reading new null point
6Calibration procedure (continued)
►Move magnet to the new end position.
►Read new end point by activating the programming
inputs.
⇒The current null point remains the same.
New end point
Before
After
Fig. 6-3: Reading new end point
Only with BTL7-C/E…:
►The gradient of the current output can be inverted by
activating the programming inputs.
⇒For example, a rising output gradient is changed to
a falling gradient. The voltage outputs are not
inverted.
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Ignition protection
“nA” and “tb”
6Calibration procedure (continued)
6.3.2 Adjusting
The detailed procedure for adjusting is
described on page18 ff.
The factory set null point and end point is replaced by a
new start point and end point and the associated output
values can be adjusted. The start and end values can be
adjusted as you like up to the limits.
Adjustment is possible from serial number
120615000xxxxx xx onwards.
Steps
►Move magnet to the new start position.
►Read new start point by activating the programming
inputs.
►Set the desired start value by activating the program-
ming inputs.
New null point
Before
After
Fig. 6-4: Adjust a new start value
►Move magnet to the new end position.
►Read new end point by activating the programming
inputs.
►Set the desired end value by activating the program-
ming inputs.
New end point
Before
After
Fig. 6-5: Adjust a new end value
6.3.3 Reset
Restoring the transducer to its factory settings.
The detailed procedure for the reset is
described on page20.
New start value
New end value
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Ignition protection
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7 Teach-in
NOTICE
Interference in function
Teach-in while the system is running may result in
malfunctions.
►Stop the system before performing teach-in.
Displayed values (example)
At 0 to 10 V At 4 to 20 mA
Initial situation:
– Transducer with magnet within measuring range 5.39 V 9.15 mA
Activate teach-in
Activate
a
for at least 4s. >4s
a
4.00 V 12.00 mA
⇒Indication for teach-in is displayed.
⇒The current position value is displayed again once
the button is released.
5.39 V 9.15 mA
Set null point
Bring magnet to the new null point. 1.04 V 4.82 mA
Activate
a
for at least 2s. > 2s
a
⇒The new null point is set. 0.00 V 4.00 mA
Set end point
Bring magnet to the new end point. 9.89 V 19.13 mA
Activate
b
for at least 2s. >2s
b
⇒The new end point is set. 10.00 V 20.00 mA
Inverting the characteristic curve (only with BTL7-C/E)
Simultaneously activate
a
and
b
for at least 4s. >4s
a
b
3.60 mA
⇒Error value is displayed.
⇒The characteristic curve of the output is inverted
once released.
14.85 mA
End teach-in
Briefly activate
a
and
b
simultaneously (<1s). <1s
a
b
10.50 V 3.60 mA
⇒The output indicates the error value during
activation.
⇒Current position value is displayed. 10.00 V 4.00 mA
Any of the individual steps for settings can be
selected. The teach-in process can be ended at
any time.
Programming line La =
a
Programming line Lb =
b
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Ignition protection
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8 Adjusting
NOTICE
Interference in function
Adjustment while the system is running may result in
malfunctions.
►Stop the system before performing adjustment.
Displayed values (example)
At 0 to 10 V At 4 to 20 mA
Initial situation:
– Transducer with magnet within measuring range 5.39 V 9.15 mA
Activate adjusting
►Activate
b
for at least 4s. >4s
b
2.00 V 6.00mA
⇒Indication for adjustment is displayed.
⇒The current position value is displayed again once
the button is released.
5.39 V 9.15 mA
Set start point
►Bring magnet to the new start point. 1.04 V 4.82 mA
►Activate
a
for at least 2s. >2s
a
⇒The new start point is set with the last valid start
value.
0.00 V 4.00 mA
Adjust start value
►The start value can be changed using
a
and
b
.
The gradient of the curve changes (see page 16).
0.00 V 4.00 mA
0.90 V 7.20 mA
►End calibration procedure: Briefly activate
a
and
b
simultaneously (<1s). <1s
a
b
2.00 V 6.00mA
⇒Set position value is saved. 0.90 V 7.20 mA
For setting the end point, adjusting the end value,
and ending adjustment, see page 19.
Any of the individual steps for settings can be
selected. The adjustment process can be
ended at any time.
a
a
b
b
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a
a
b
b
8Adjusting (continued)
Displayed values (example)
At 0 to 10 V At 4 to 20 mA
Set end point
►Bring magnet to the new end point. 9.89 V 19.13 mA
►Activate
b
for at least 2s. > 2s
b
⇒The new end point is set with the last valid end
value.
10.00 V 20.00 mA
Adjust end value
►The end value can be changed using
a
and
b
. The
gradient of the curve changes (see page16). 10.00 V 20.00 mA
8.00 V 16.80 mA
►End calibration procedure: Briefly activate
a
and
b
simultaneously (<1s).
⇒Set position value is saved.
< 1s
a
b
2.00 V 6.00mA
8.00 V 16.80 mA
End adjusting
►Briefly activate
a
and
b
simultaneously (<1 s). < 1s
a
b10.50 V 3.60 mA
⇒The current position value is displayed once the
buttons are released. 7.63 V 18.56 mA
Any of the individual steps for settings can be
selected. The adjustment process can be
ended at any time.
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Ignition protection
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9 Resetting all values (reset)
NOTICE
Interference in function
Resetting the values while the system is running may
result in malfunctions.
►Stop the system before performing the reset.
The reset function can be used to restore all the settings
to the factory settings. For a reset the magnet may also be
located outside the measuring range.
Displayed values (example)
At 0 to 10 V At 4 to 20 mA
5.39 V 9.15 mA
Activate reset
►Simultaneously activate
a
and
b
for at least 4s. >4s
a
b
10.50 V 3.60 mA
Reset
►Simultaneously activate
a
and
b
for at least 4s. >4s
a
b
0.00 V 4.00 mA
After activation:
⇒All values are reset. 9.89 V 19.13 mA
⇒Current position value is displayed.
⇒Reset is deactivated.
Abort reset
Resetting can be aborted without any changes
being saved after the Activate reset step.
►Briefly activate
a
and
b
simultaneously (<1s). <1s
a
b
⇒Current position value is displayed.
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Micropulse Transducer - Rod Style