Kistler 2629DK Manuel utilisateur
Instruction
Manual
2629DK_002-819e-09.18
TDC Sensor System
Type 2629DK
Instruction
Manual
2629DK_002-819e-09.18
TDC Sensor System
Type 2629DK
Page 12629DK_002-819e-09.18
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guished by technical innovation, precision and long life.
Information in this document is subject to change without
notice. Kistler reserves the right to change or improve its
products and make changes in the content without obliga-
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or improvements.
©2018 Kistler Group.
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Foreword
Foreword
TDC Sensor System Type 2629DK
2629DK_002-819e-09.18Page 2
Content
1. Introduction .................................................................................................................................3
2. TDC Sensor System introduction..............................................................................................4
3. Important notes / protection of the instruments......................................................................5
3.1 For your safety....................................................................................................................5
3.2 Disposal instructions for electronic equipment ...................................................................5
4. Structure of the TDC Sensor System........................................................................................6
5. Installation of the TDC Sensor System.....................................................................................7
5.1 Mounting the TDC probe ....................................................................................................7
6. Installation of the TDC electronic............................................................................................10
7. TDC determination with TDC Sensor System ........................................................................12
8. Principle of capacitive TDC determination.............................................................................13
9. Technical data ...........................................................................................................................14
9.1 TDCprobewithintegratedsignalamplier,Type2629D10/2629D11 ..............................14
9.2 TDC electronic, Type 2629D20.........................................................................................15
10. Warranty.....................................................................................................................................16
11. Appendix....................................................................................................................................17
Total pages 17
Introduction
Page 32629DK_002-819e-09.18
1. Introduction
Please take the time to thoroughly read this instruction
manual. It will help you with the installation, maintenance,
and use of this product.
To the extent permitted by law Kistler does not accept any
liability if this instruction manual is not followed or pro-
ducts other than those listed under Accessories are used.
Kistler offers a wide range of products for use in measu-
ring technology:
Piezoelectric sensors for measuring force, torque,
strain, pressure, acceleration, shock, vibration and
acoustic-emission
Strain gage sensor systems for measuring force and
moment
Piezoresistive pressure sensors and transmitters
Signal conditioners, indicators and calibrators
Electronic control and monitoring systems as well as
softwareforspecicmeasurementapplications
Data transmission modules (telemetry)
Kistler also develops and produces measuring solutions
fortheapplicationeldsengines,vehicles,manufacturing,
plastics and biomechanics sectors.
Our product and application brochures will provide you
with an overview of our product range. Detailed data
sheets are available for almost all products.
If you need additional help beyond what can be found
either online or in this manual, please contact Kistler‘s
extensive support organization.
TDC Sensor System Type 2629DK
2629DK_002-819e-09.18Page 4
2. TDC Sensor System introduction
The TDC Sensor System is used for the dynamic deter-
mination of the top dead centre position (TDC) in recipro-
cating piston engines. It consists of the TDC probe with
integratedsignalamplierandTDCelectronic.Thedevice
is installed in the nozzle holder or spark plug hole of the
engine.
In general, the TDC calibration process can be executed
via a motored engine mode, or by using the pressure sig-
nalfromanunredcylinder(oftenachievedbyinterrupt-
ingignition/fuelinthesparkignitionengineorbydisabling
fuel injection in a Diesel engine).
It is important to note that knowledge of the exact top
dead centre position is of great importance for investiga-
ting energy conversion processes occurring inside engi-
nes. This is due to the fact that all measurements are re-
corded against crank angle and with respect to TDC.
With some thermodynamic quantities such as mean indi-
cated pressure (IMEP), a deviation of only 0,1° crank ang-
le from the true top dead location will result in an error of
approximately1%inthenalIMEPvalue.
If, after studying these instructions, there are particular
questions, which you wish to have answered, then the
worldwide Kistler customer service is available to you. lt is
also competent to advise you on how to deal with applica-
tion-specicproblems.
Importantnotes/protectionoftheinstruments
Page 52629DK_002-819e-09.18
3. Important notes / protection of the instruments
It is essential for your personal safety when working with
the TDC Sensor System that you read the following ins-
tructions carefully and follow them. This will then ensure
long-term, hazard-free and fault-free operation of the in-
strument.
3.1 For your safety
This instrument has left the factory in a perfectly safe con-
dition. ln order to maintain this condition and to ensure
hazard-free operation, the user must comply with the user
operating instructions and the information and warning
notes contained in them and/or those printed on the in-
strument.
Additionally, local safety regulations concerning the hand-
ling and use of electrical and electronic equipment must
be observed.
Should there be a suspicion that safe operation will be no
longer possible, then the instrument must be shut down
and made safe against accidental start-up.
It must be assumed that safe operation is no longer pos-
sible.
when the instrument shows visible signs of damage,
when the instrument is no longer functioning properly,
If, according to the criteria listed above, safe and hazard-
free operation of the instrument can no longer be assu-
med as being assured, then the instrument must be im-
mediately returned to Kistler for repair.
3.2 Disposal instructions for electronic equipment
Do not discard old electronic devices in municipal trash.
For disposal at end of life, please return this product to
an authorized local electronic waste disposal service
or contact the nearest Kistler sales ofce for return
instructions.
TDC Sensor System Type 2629DK
2629DK_002-819e-09.18Page 6
4. Structure of the TDC Sensor System
The TDC Sensor System consists of
TDCprobewithintegratedsignalamplier
TDC electronic
Mains cable
Cable for TDC probe
Installation adapters
Instrument rod and adjuster rings
This system produces a capacitive displacement current
as the measuring signal, which is a function of the piston
movement and thus of the crank angle (see chapter 8).
TheTDCsignalamplierisintegratedintheTDCprobe.It
converts the position-dependent TDC probe capacitance
into a voltage signal. This can be connected, over a dis-
tance of up to 10 m, to the TDC electronic.
TDC probe
Fig. 1: TDC probe positioned in engine
The TDC electronic provides an output at a BNC socket
(voltage). The signal output is normally recorded against
crank angle position and then can be evaluated to de-
termine the exact TDC position. This process requires a
crank angle encoder and a combustion analysis system
(e.g. KiBox) for the purpose of recording and evaluating
the TDC signal.
Installation of the TDC Sensor System
Page 72629DK_002-819e-09.18
5. Installation of the TDC Sensor System
Install the measuring set-up, described above, in ac-
cordance with the following instructions:
5.1 Mounting the TDC probe
The installation adapter is mounted together with the TDC
probe in the bore of a spark plug or glow plug bore.
Installation adapter
Fig. 2: Assembling the installation adapter
Step 1:
Mount the installation adapter without the TDC probe in
the bore of the cylinder head, see Fig. 2. In the scope
of delivery is a M10, M12 and M14 installation adapter.
Additional adapters are available upon request.
For mounting the installation adapters we recommend
mounting tool Type 1377 (tabular socket wrench hex
14mm/18mm,length250mm)whichisavailableun-
der optional accessories.
The recommended torque for mounting the installation
adapters are as follows:
Installation adapter Thread Torque
Type 6592A1 M10x1 10N∙m
Type 6592A6 M12x1.25 12N∙m
Type 6592A2 M14x1.25 15N∙m
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