WYLER LEVELTRONIC NT User manual

WYLER AG
Im Hölderli
CH-8405 WINTERTHUR
Switzerland
Tel. [phone]
Fax. [phone]
Homepage: http://www.wylerag.com
E-Mail:[e-mail]
OPERATOR'SMANUAL
LEVELTRONIC NT and MINILEVEL NT
with
Radio transmission
and
LEVELMETER 2000
File: „nt_funke.doc“ April 24/.2000

Seite 2 von 53 Seiten
Content
Subject Page
1. BASICS 3
1.1. Instrument's overview 3
1.2. Measuring instruments / External display instruments 4
1.3. Measuring procedure / general use 6
1.4. Zero setting by reversal measurement (Absolute ZERO) 11
1.5. Applications 11
1.6. WYLER software LEVEL SOFT 16
2. DETAILED INFORMATION to the various instruments 18
2.1. MINILEVEL / LEVELTRONIC „classic“ 18
2.2. MINILEVEL / LEVELTRONIC „NT“ 32
3. TECHNICAL DATA 45
3.1. LEVELTRONIC NT 45
3.2. MINILEVEL NT 45
3.3. RADIO MODULE 46
4. UPGRADE OF MINILEVEL NT AND LEVELTRONIC NT TO RADIO TRANSMISSION UNITS 47
5. MAINTENANCE / easy to cure malfunctions 49
6. ACCESSORIES / SPARE PARTS 51
7. STORING 51
8. DECLARATION OF CONFORMITY 52
Änderungen / Modifications:
Datum / Date Geändert durch
Modified by Beschreibung der Änderung Description of modifications
The following manuals are ready for download on the internet homepage http://www.wylerag.com:
• DYNAM, the software for measuring and monitoring for use with ZEROTRONIC-
sensors
• LEVELSOFT WIN99, the software for inclination and flatness measurement with
WYLER inclination measuring instruments
• LEVELMETER 2000
• LEVELMETER „light“
• +CLINO PLUS+, the handy inclination measuring instrument
• CLINO 2000, the instrument with a number of features
• MINILEVEL / LEVELTRONIC „classic“ and „NT“
• Remote Display, the simple display unit
• COMPENDIUM, the informative brochure for our agents with an overview on our
products, technologies and applications
• Interface description RS485
These manuals can also be received against a nominal fee on a CD „ALL-IN-ONE“ if ordered at WYLER AG.
On this CD the manuals are available in different languages

Seite 3 von 53 Seiten
1. BASICS
The family of electronic inclination measuring instruments is very well suited for all kind of precision
measurement.
Two configurations are possible
I. Communication from the measuring instrument to the external display unit via cable
Using this conventional configuration the data transmission between the measuring instruments
(MINILEVEL NT und LEVELTRONIC NT) are connected to the external display unit (LEVELMETER 2000
or Levelmeter C25 (analogue model)) with cables
II. Communication from the measuring instrument to the external display unit via radio module
Using the configuration „wireless transmission“ the data will be transmitted via radio transmission to the
external display unit (possible with LEVELMETER 2000 only)
IMPORTANT: The MINILEVEL NT still can be used as stand alone instruments as well
Depending on the country in which the units are used the respective available free to use frequencies are
433MHz or 902 MHz.
(Technical data see Point 3)
1.1 INSTRUMENT’S OVERVIEW
MINILEVEL NT with integrated display and radio
transmission unit installed 2LEVELTRONIC NT with LEVELMETER 2000 and cable connection
2MINILEVEL NT with LEVELMETER 2000 and
radio transmission module as an engineer set

Seite 4 von 53 Seiten
1.2 MEASURING INSTRUMENTS / EXTERNAL DISPLAY UNITS
Differences between MINILEVEL / LEVELTRONIC concerning display.
The MINILEVEL is equipped with an integrated
display and can be used as a stand-alone
instrument. It is however possible to connect it to
a Levelmeter (E.g. LEVELMETER 2000) to
receive remote display or to use it together with
another instrument for differential measurement.
Picture right:
MINILEVEL NT with integrated radio transmission
module
MINILEVEL NT with integrated radio transmission module
The LEVELTRONIC instruments are not
equipped with an internal display and require
therefore the connection to an external display
unit.
Picture rights:
LEVELTRONIC with integrated radio transmission
module
LEVELTRONIC NT with integrated radio transmission
module
2LEVELTRONIC NT with
LEVELMETER 2000
(Cable connection)
2LEVELTRONIC NT with
LEVELMETER 2000 and radio transmission box

Seite 5 von 53 Seiten
Differences between LEVELMETER 25, C25 and LEVELMETER 2000
LEVELMETER C25/DC
Measured values in analogue form possible via cables
only
The LEVELMETER C25 is very simple in using
Possible connections are:
• LEVELTRONIC NT
• MINILEVEL NT
• MINILEVEL „classic“
LEVELMETER 2000
Digital data transmission possible via cables or via
wireless transmission
The LEVELMETER 2000 has a number of built-in
sophisticated options, which can be used by the skilled user.
The Version „RADIO TRANSMISSION“ is only possible
with the LEVELMETER 2000
The LEVELMETER C25 and LEVELMETER 2000 are especially well suited for use with the above-mentioned
instruments, especially when differential measurement is applied in precision measurements. (Engineer set)
All the mentioned instruments are optimally used together with the flatness measurement software of
WYLER AG (LEVELSOFT WIN99)

Seite 6 von 53 Seiten
1.3 MEASURING PROCEDURE / GENERAL USE
1.3.1. TYPICAL CONFIGURATION WITH AND WITHOUT RADIO TRANSMISSION
Analogue data transmission
Two LEVELTRONIC NT or MINILEVEL NT are
connected to a LEVELMETER C25
Digital data transmission via cables
Two LEVELTRONIC NT or MINILEVEL NT connected
with a LEVELMETER 2000
Digital data transfer via radio transmission
Two LEVELTRONIC NT or MINILEVEL NT wireless
connected via a transmission box to a LEVELMETER
2000
Digital data transfer via radio transmission as well
as with cable
Generally it is also possible to connect one of the
instruments via cable to the LEVELMETER 2000 and
receive the data of the second, further away
instrument, via radio transmission to the
LEVELMETER 2000.
Additional information to the configuration can be seen under Point 2 „Detailed information to the various
instruments”

Seite 7 von 53 Seiten
1.3.2. BASIC SET-UP OF THE INCLINATION MEASURING INSTRUMENTS /PLUS -MINUS RULE
The instrument should always be placed in a way that the cable output is on the right hand side.
Inclined to the right: positive
Declined to the right: negative
(Practical remark: positive values
indicate that some material may be
removed on the measured piece)
Before starting the measurement enough acclimatization time must be allowed for the instruments.
Place the instrument (LEVELTRONIC or MINILEVEL) carefully to the required measuring spot. (Surface) and
read the value on the LEVELMETER or on the integrated display.
It is important to measure always in the direction of the cable connector, respectively the cable.
Example: Flatness measurement of a measuring and setting plate of granite
IMPORTANT:
• Touch the instruments only at the
handle (Temperature!!!)
• Measuring from left to right and from
closetofar.
• Cable respectively cable connector in
measuring
direction

Seite 8 von 53 Seiten
1.3.3 ABSOLUTE MEASUREMENT /RELATIVE MEASUREMENT /DIFFERENTIAL MEASUREMENT
Absolute measurement
(Absolute ZERO) Condition for the absolute measurement is the performing of a reversal measurement
for determining the absolute zero (to the center of the earth)
After this procedure the instrument will display the effective deviation from the center
of gravity. This means the value is an absolute angle of the measured surface.
Example: if the object to be measured is absolutely level, the display is "0"
Relative measurement
(Relative ZERO) A number of measurements do not require the absolute ZERO as described above.
Example: Angular deviation between two objects. (Lines, surfaces, guide ways)
The measurement instrument is placed on an object and the displayed value is
changed to "0". Then the instrument is relocated to a second object and the displayed
value of the angle is the angular difference between the two surfaces. If the display is
also "0", then both surfaces are parallel.
Most important is that always the instrument is placed on both positions in the same
direction.
Differential measurement
A differential measurement is a measurement with two instruments Measuring
instrument (A) and Reference instrument (B), measuring the angular difference
between the two. This means e.g. if the angular change in both instruments is the
same the displayed value (Difference A - B) does not change. In principle this is a
special relative measurement.
I the following measuring tasks the differential measurement is especially used
• Measurement on object with vibrations imposed.
• Measurements on unstable systems or objects
Example: Measuring the flatness of a machine bed. The reference instrument is
placed on a stable part of the machine where the measurement is not
interfered. With the measuring instrument the measurement is taking place
without removing the reference instrument.

Seite 9 von 53 Seiten
1.3.4 GENERAL REMARKS ABOUT "ANGLES"
Every angle may be defined in different
ways. The most popular way is a definition
in Degrees / Minutes / Seconds.
This is shown in the graph.
Such a definition is especially useful for
larger angles.
With an angular measuring instrument not only an
angle may be measured but also the height of a
certain point over a defined base length can be
calculated. for a profile of a line or a surface) Due to
this simple and reliable method a number of tasks
are possible, especially for measuring guide ways
and surface plates definition. Angle α
αα
α= Height of the measuring point related to a
defined base.
Height of the measuring point = tan α
αα
αx length of base
Example:
Angle = Height related to a defined base.
e.g.. 22 µm/m
Example:
Because the relation µm/m is 1/1'000'000 the same
relation can also be applied to micro inch/inch
Angle = Height related to a defined base.
e.g. 22 µm/m are equal to 22 micro inch/inch or
0,000022 Inch / Inch

Seite 10 von 53 Seiten
1.3.5 HEIGHT RELATED TO THE STEP LENGTH
Height Hx in [µm] related to
step length Height Hx [µm] = ]mm[LLength ]mm[LxSteplength]µm[HHeight ×
Height Hx in [micro Inch] related
to step length
1 micro Inch = 0,000001 Inch
Height Hx [micro Inch] = ]Inch[LLength ]Inch[LxSteplength]mikroINCH[HHeight ×
Height Hx in [µm] related to
step length Height Hx [µm] = ]mm[LxLength
3600
sec]arc[
tan ×
α
Height Hx in [micro Inch] related
to step length
1 micro Inch = 0,000001 Inch
Height Hx [micro Inch] = = 000'000'1]Inch[LxLength
3600
sec]arc[
tan ××
α