MICRO-EPSILON NLS3181 User manual

OC
SENSORS & SYSTEMS
MICRO-EPSILON
Authority in Displacement Measurement
Instruction Manual
Non Contact Compact
Displacement Measuring System
on Eddy Current rinciple
NLS3181

MICRO-EPSILON
MESSTECHNIK
GmbH & Co. KG
Königbacher Strasse 15
D-94496 Ortenburg
el. +49/85 42/1 68-0
Fax [phone]
e-mail [email protected]
www.micro-epsilon.com
Zertificated acc. to DIN EN ISO 9001: 2000

X9751115-A030094MSC
Contents
1. Safety ................................................................... 5
1.1 Symbols Used ......................................................................5
1.2 Warnings............................................................................... 5
1.3 Notes on CE Identification ................................................... 5
1.4 Proper Use ...........................................................................6
1.5 Proper Environment .............................................................6
2. System Descr pt on ............................................. 7
2.1 Area of Application ...............................................................7
2.2 Measuring Principle ..............................................................7
2.3 Structure of the Complete Measuring System .....................7
2.4 Glossary................................................................................8
3. Techn cal Data ..................................................... 9
4. Installat on and Assembly ................................ 10
4.1 Precautions.........................................................................10
4.2 Sensor ................................................................................10
4.3 Sensor Cables ....................................................................11
4.4 Controller ............................................................................12
4.6 System Adjustment ............................................................13
5. Operat on ........................................................... 13
5.1 Control Elements ................................................................15
5.2 Calibration ..........................................................................15
6. El m nat ng Errors ............................................. 16
7. Accessor es ....................................................... 16
8. Warranty ............................................................ 17

X9751115-A030094MSC

X9751115-A030094MSC 5
1. Safety
he handling of the system assumes knowledge of the instruction manual.
1.1 Symbols Used
he following symbols are used in this instruction manual:
DANGER! - imminent danger
WARNING! - potentially dangerous situation
i
IMPORTANT! - useful tips and information
1.2 Warn ngs
 Avoid banging and knocking the electronics / sensors
ðDamage to or destruction of the electronics / sensors
 Power supply must be connected in accordance with the safety regulations
for electrical equipment
ðDanger of injury
ðDamage to or destruction of the sensor safety
 Protect the cables against damage
ðFailure of the measuring device
1.3 Notes on CE Ident f cat on
he following applies to NLS3181:
EU regulation 89/336/EEC
Products which carry the CE mark satisfy the requirements of the EU regulati-
on EU 89/336/EEC Electromagnetic Compatibility and the European stan-
dards (EN) isted therein.
he EU declaration of conformity is kept available according to EU regulation,
article 10 by the authorities responsible at
MICRO-EPSILON MESS ECHNIK
GmbH & Co. KG
Königbacher Straße 15
94496 Ortenburg
Safety

6 X9751115-A030094MSC
he NLS3181 is designed for use in industry and satisfy the requirements of
the standards
 EN 50 081-2 RFI emission
 EN 61000-6-2 Immunity to interference
he system satisfy the requirements if they comply with the regulations descri-
bed in the instruction manual for installation and operation.
1.4 Proper Use
 he NLS3181 is designed for use in industrial areas.
 It is used for machine supervision and for measuring and testing in process
quality assurance.
 he system may only be used in such a way that does not endanger per-
sons or cause damage to the machine due to malfunctions or total failure of
the system.
 Additional precautions for safety and damage prevention must be taken for
safety-related applications.
1.5 Proper Env ronment
 Protection class
Sensor: IP 65
Controller: IP 54
 Operating temperature
Sensor and sensor cable: -50 to +150 °C (-58 to +302 °F)
Controller: +10 to +65 °C (+50 to +149 °F)
 Humidity: 5 - 95 % (no condensation)
 Ambient pressure: atmospheric pressure
 Power supply: 24 VDC (9 ... 36 VDC)
 Storage temperature: -25 to +75 °C (-13 to +167 °F)
Safety

X9751115-A030094MSC 7
i
IMPORTANT!
he components are mat-
ched.
he allocation of the sensor
and the controller determi-
ned by the serial number.
System Description
2. System Descr pt on
2.1 Area of Appl cat on
he NLS3181 non-contact, compact displacement measuring systems are de-
signed for industrial applications to measure the movement of injection need-
les.
2.2 Measur ng Pr nc ple
he NLS3181 displacement measuring system operates without contact using
eddy current technology. It is used for making measurements on targets made
of ferromagnetic electrically conductive materials.
High-frequency alternating current flows through a coil cast in a sensor casing.
he electromagnetic coil field induces eddy currents in the conductive target
thus changing the ac resistance of the coil. his change in impedance is inter-
pretted by demodulation electronics which generate an electrical signal pro-
portional to the distance of the target from the sensor.
A patented electronic compensation technique reduces temperature-depen-
dent measuring errors to a minimum.
2.3 Structure of the Complete Measur ng System
he NLS3181 non-contact single channel displacement measuring system
(Fig. 2.1) consists of:
- Sensor LS04
- Connecting cable C3/1
- Signal conditioning electronics (controller)
built into a compact aluminium housing
- Power supply and output cable PC3/4
Sensor
connection
Power supply
Signal output

8 X9751115-A030094MSC
System Description
2.4 Glossary
SMR Start of measuring range. Minimum overlapping between sensor and
the injection needle groove.
MMR Midrange
EMR End of measuring range. Maximum overlapping between sensor and
the injection needle groove.
-5 V
0
+5 V
Signal
Sensor
SMR MMR EMR
Displacement
Injection
needle

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echnical Data
3. Techn cal Data
ledomrosneS40SL
rellortnoC1813SLN
egnargnirusaeMRM)"610.(mm4.0
RMSegnargnirusaemfotratS )"800.(mm2.0-
RMEegnargnirusaemfodnE)"800.(mm2.0+
ytiraeniL ≤OSF%5.1±
noituloseRcitats
cimanyd
)slim200.0(mµ50.0
)slim20.0(mµ5.0
esnopserycneuqerF)Bd3-(zHk001
ytilibataepeRcitatsOSF%50.0±
gnitarepO
erutarepmet
rosneS
elbaC+
C°051+...01+
)F°203+...05+(
rellortnoCC°56+...01+
)F°941+...05+(
erutarepmetegarotS C°57+...52-
)F°761+...31-(
ytilibatserutarepme ≤(C°/OSF%50.0± ≤)F°/OSF%30.0±
ssalcnoitcetorProsneS
elbaC+ 56PI
rellortnoC45PI
elbacrosneshtgneLdradnatS
noisnetxE
,)%51±(m5.0
)%51±(m3
elbacrosneslairetaM)nolfet(EFP
tuptuolangiS CDV5+...CDV5-
ylppusrewoP )CDV63...CDV9(CDV42+
ytilibitapmoccitengamortcelE 2-6-00016NE/2-18005NE.cca
he specified technical data apply for the reference material mild steel St37
DIN1.0116 at 20 °C.
FSO = Full Sale Output

10 X9751115-A030094MSC
4. Installat on and Assembly
4.1 Precaut ons
No sharp or heavy objects should be allowed to affect the cable sheath of the
sensor cable, the supply cable and of the output cable. All plug-in connections
must be checked for firm seating before starting operation.
4.2 Sensor
ype designation: LS04
Construction: he front part of the sensor with encapsulated coil
consists of electrically non-conducting materials.
Important: In the radial direction metal parts in the vicinity may
behave similar to the measurement object,
rendering the measurement result inaccurate.
Legend:
mm
(inches)
Installation and Assembly
Fig. 4.2: Bonding the sensor into the injection body
i
IMPORTANT!
he sensor needs to be
bonded into the injection
body for high pressure
applications.
Fig. 4.1: Sensor Dimensions LS04 with integral cable
3.42 (.13)
2.42 (.10)
ø2.6
(.10)
ø0.5 (.02)
-0.05
R 0.1
70 ° ±0.2 °
Integral cable
length: 500 (20)
Honed
ø3.5
(.14)
Injection body Sensor LS04 Mounting screw
Cold-cured adhesive