premet c 1.11

Operator manual for the electronic engine indicator PREMET C Version 1.11

LEHMANN & MICHELS GmbH Sales & Service Center

Siemenstrasse 9 • D-25462 Rellingen • GERMANY Tel. +49 4101 5880 0 • Fax +49 4101 5880 129

e-mail: [email protected] • visit us at www.lemag.de 1/35

Operating Instructions

for the

Electronic Indicator

PREMET® C

Version 1.11 2010-01-19

Subject to change without notice





Thank you for buying the LEMAG PREMET® C electronic indicator. The technology and handling of the LEMAG PREMET® C Indicator has been developed and designed for the future. It is easy to operate, record, store and analyse all measurement data on the unit’s colour display for quick results, high accuracy and repeatability. The LEMAG PREMET® C can measure up to 30 peak pressures for 1-20 cylinders and calculate the statistical data. It also compensates for temperature changes prior to every measurement. The LEMAG PREMET® C will provide you with essential data about your engines. Different versions of the electronic indicator are available and additional features can be upgraded at a later stage if required. Depending on your version, the LEMAG PREMET® C can e.g. measure and calculate the mean indicated pressure, indicated power and combustion pressure in relation to the crank angle by using a TDC Sensor, inductive or optional laser type. Analysis software is also integrated into the LEMAG PREMET® C to enable more detailed analyses on any compatible PC. To ease this operation the unit acts like an external mass storage device (USB stick). There is no need for installing a device driver for the PREMET C on computers with Windows XP or VISTA. Reading the operating instructions will help you benefit from all the instruments functions. Our high quality LEMAG PREMET® C indicators can increase efficiency and we are certain that it will become a vital tool on board.

Safety Instructions Please note that compressed exhaust gases are extremely dangerous due to their high temperatures and pressures. The connection between the indicator cock and indicator must be absolutely gas tight. Please ensure that the connection nut on the indicator cock is securely fitted before opening. The indicator valve must be completely closed before dismounting the LEMAG PREMET® C.

Temperature Range This instruments temperature range for storage is -20° C to +70° C. The temperature range for measuring is an environmental temperature of 0° C to 50° C.

LEMAG PREMET® C





Contents Page

1. Start screen 5 2. Menu point MAIN MENU 5

3. Menu point MANUAL SETUP 6

3.1 Menu point SETUP SHIPS 6

3.2 Menu point SETUP ENGINES 7 3.2.1 Setup pressure unit 9

3.2.2 Setup power unit 9

3.2.3 Setup scav air pressure 10 3.2.4 Setup stroke type 2/4 10 3.2.5 Setup bank type line/Vee 11 3.2.6 Setup number of cylinders 11 3.2.7 Setup number of workstrokes 11 3.2.8 Setup limit pmax dev. 12 3.2.9 Setup TDC sensor YES/NO 12 3.2.10 Setup MS sensor YES/NO 12 3.2.11 Setup firingorder 13 3.2.12 Setup TDC deviation 13 3.2.13 Setup bore diameter 14 3.2.14 Setup stroke length 14 3.2.15 Setup conrod length 14 3.2.16 Setup TDC correction 15 3.2.17 Setup Average curve 15 3.2.18 Setup Fuel sensor 15 3.2.19 Setup ACL sensor 16

3.3 Menu point SETUP CLOCK 16 3.3.1 Setup hour 16 3.3.2 Setup minute 16 3.3.3 Setup second 17 3.3.4 Setup year 17 3.3.5 Setup month 17 3.3.6 Setup day 17 4. Menu point SCAN ENGINE 18 5. Menu point ANALYSE DATA 21 6. Menu point DELETE DATA 24 7. Menu point CHECK TDC SENSOR 25 8. Menu point CALIBRATE 27 9. Menu point CONNECT TO USB-PC 28 10. Final note 35





Preface: The PREMET C can have different options installed e.g. additional Fuel and/or ACL sensors. Some of the options may not available in your instrument.





1. Start screen After power on the electronic indicator PREMET C will show the following start screen:

LEHMANN & MICHELS GmbH

PREMET C

SN: 34567

Version: 1.11

2009-05-22

LS XL MS FUEL ACL

- Serial number of the instrument - Firmware version - Date of firmware version - green: installed options

Pressing any key will leave the start screen for the MAIN MENU.

2. MAIN MENU From the main menu the user selects the different functions of the device.

By using the keys UP ⇑⇑⇑⇑ and DOWN ⇓⇓⇓⇓ the user can pre select a function. The pre selected function is highlighted by a white background colour. By pressing the ENTER key the user starts the selected function :

MAIN MENU

MANUAL SETUP - setup functions SCAN ENGINE - measurement functions ANALYSE DATA - analyse measurements DELETE DATA - delete measurements CHECK TDC SENSOR - check crank angle sensors TDC and MS CALIBRATE - check calibration, temp and Ubattery

If the user selects the menu point CALIBRATE and moves the cursor downwards the following menu is shown allowing to connect the device to the PC via USB.

MAIN MENU

Back to main - return to MAIN MENU CONNECT TO USB-PC - connect the device to USB





3. Menu point MANUAL SETUP The menu point MANUAL SETUP is intended to allow the user to setup the instrument for usage. The MANUAL SETUP will show the following sub menu:

MANUAL SETUP

SETUP SHIPS - setup functions for different ships SETUP ENGINES - setup functions for different engines SETUP CLOCK - setup functions for internal clock

By using the keys UP ⇑⇑⇑⇑ and DOWN ⇓⇓⇓⇓ the user can pre select a function. The pre selected function is highlighted by a white background colour. By pressing the ENTER key the user starts the selected function. By pressing the ESC key the user returns to the main menu. 3.1 Menu point SETUP SHIPS The PREMET C can measure and store measurements for 5 ships with 6 engines for each ship. In menu point SETUP SHIPS the user is able to edit the name of the individual ships SHIP1 … SHIP5. Select the function SETUP SHIPS from the menu MANUAL SETUP:

MANUAL SETUP

SETUP SHIPS - setup functions for different ships SETUP ENGINES SETUP CLOCK

Then select a ship to edit its shipname:

SETUP SHIPS

SHIP1 - select SHIP1 for editing SHIP2 - select SHIP2 for editing SHIP3 - select SHIP3 for editing SHIP4 - select SHIP4 for editing SHIP5 - select SHIP5 for editing

By using the keys UP ⇑⇑⇑⇑ and DOWN ⇓⇓⇓⇓ the user can pre select a ship for editing. The pre selected ship is highlighted by a white background colour.





By pressing the ENTER key the user starts to edit the selected ship. By pressing the ESC key the user returns to the main menu.

SETUP SHIPS

Edit shipname For SHIP 1

SHIP1 - edit the shipname

By using the keys UP ⇑⇑⇑⇑ and DOWN ⇓⇓⇓⇓ the user can change the actual character highlighted by the cursor. Allowed characters are 0..9,A..Z,a..z. The max. length of the shipname is 16 characters. By using the ENTER key the actual character is accepted and the cursor moves to the next character. By using the ESC key the inserted shipname is skipped and the user returns to the main menu. If the last character was accepted with the ENTER key the new shipname is stored in the internal flash ROM of the PREMET C. 3.2 Menu point SETUP ENGINES

The PREMET C can measure and store measurements for 5 ships with 6 engines for each ship. In menu point SETUP ENGINES the user is able to edit the name of the individual engine and the engine setup data like number of cylinders,2/4 stroke and others. Select the function SETUP ENGINES from the menu MANUAL SETUP:

MANUAL SETUP

SETUP SHIPS SETUP ENGINES - setup functions for different engines SETUP CLOCK

Acknowledge with ENTER.





First the user has to select to which ship the engine belongs:

SELECT SHIP

SHIP1 - select SHIP1 SHIP2 - select SHIP2 SHIP3 - select SHIP3 SHIP4 - select SHIP4 SHIP5 - select SHIP5

Select the ship with UP ⇑⇑⇑⇑ and DOWN ⇓⇓⇓⇓ keys and press ENTER to select the engine to edit:

SETUP ENGINES

MAINENG1 - select main engine 1 MAINENG2 - select main engine 2 AUXENG1 - select aux engine 1 AUXENG2 - select aux engine 2 AUXENG3 - select aux engine 3 AUXENG4 - select aux engine 4

Select the engine with UP ⇑⇑⇑⇑ and DOWN ⇓⇓⇓⇓ keys and press ENTER to start editing:

SETUP ENGINES

Edit enginename

MAINENG1 - edit the enginename

By using the keys UP ⇑⇑⇑⇑ and DOWN ⇓⇓⇓⇓ the user can change the actual character highlighted by the cursor. Allowed characters are 0..9,A..Z,a..z. The max. length of the shipname is 10 characters. By using the ENTER key the actual character is accepted and the cursor moves to the next character. By using the ESC key the inserted enginename is skipped and the user returns to the main menu. If the last character was accepted with the ENTER key the new enginename is stored in the internal flash ROM of the PREMET C.





Now the user is able to edit the engine base information:

MANUAL SETUP

EDIT PARAMETERS

ALLOWED: NO ?

At first the instrument asks if the user wants to view the data only (Allowed: NO) or if he wants to edit the data (Allowed: YES). 3.2.1 Setup pressure unit The PREMET C can present pressure readings using one of the following engineering units: Bar, psi, Mpa, kg/cm2. This menu allows selecting the engineering unit:

MANUAL SETUP

UNIT FOR PRESSURE

IS: bar ?

Press ENTER to acknowledge the unit or press ESC to leave the setup unchanged. 3.2.2 Setup power unit The PREMET C can present the indicated power using one of the following engineering units: kW, hp This menu allows selecting the engineering unit:

MANUAL SETUP

UNIT FOR POWER

IS: kW ?

Press ENTER to acknowledge the unit or press ESC to leave the setup unchanged.





3.2.3 Setup scav air pressure The PREMET C relates all measured pressures to the scavenging air pressure (2-stroke engine) or charging air pressure (4-stroke engine). This pressure has to be given to the instrument prior to the measurement. Because this pressure depends on the actual load during the measurement it should be edited before start of measurement. This menu allows editing the scavenging/charging air pressure:

MANUAL SETUP

SCAV AIR PRESSURE

IS: 1 .00bar ? Adjust before Start measurement

Use UP and DOWN keys to change the highlighted position. Press ENTER to acknowledge the value or press ESC to leave the setup unchanged. 3.2.4 Setup stroke type 2/4 The PREMET C needs to know if the engine is of type 2- or 4-stroke. This information is used for the calculation of the individual cylinder TDC positions compared to the TDC/MS sensor signal:

MANUAL SETUP

STROKE TYPE

IS: 4-stroke ?

Use UP and DOWN keys to change the highlighted position. Press ENTER to acknowledge the value or press ESC to leave the setup unchanged.





3.2.5 Setup bank type line/Vee (only for option XL or MS) The PREMET C needs to know if the engine is of type line or Vee. This information is used for the calculation of the individual cylinder positions with relation to the TDC/MS sensor signal:

MANUAL SETUP

BANK TYPE

IS: In-line ?

Use UP and DOWN keys to change the highlighted position. Press ENTER to acknowledge the value or press ESC to leave the setup unchanged. 3.2.6 Setup number of cylinders This menu allows editing the number of cylinders (1...20) of the engine:

MANUAL SETUP

NUMBER OF

CYLINDERS: 06 ?

Use UP and DOWN keys to change the highlighted position. Press ENTER to acknowledge the value or press ESC to leave the setup unchanged. 3.2.7 Setup number of workstrokes This menu allows editing the number of work strokes (1...30) to measure:

MANUAL SETUP

NUMBER OF WORK-

STROKES: 10 ?






3.2.8 Setup limit pmax dev. The PREMET C can calculate the number of work strokes of each cylinder which is in an area around the mean peak pressure of all work strokes of this cylinder. This menu allows editing this limit:

MANUAL SETUP

LIMIT P MAX DEV.

IS: 05.0 bar ?

Use UP and DOWN keys to change the highlighted position. Press ENTER to acknowledge the value or press ESC to leave the setup unchanged. 3.2.9 Setup TDC sensor YES/NO (only for option XL or MS) This menu allows selecting if the actual engine should be measured using a TDC sensor:

MANUAL SETUP

TDC SENSOR: YES ?

Use UP and DOWN keys to change the highlighted position. Press ENTER to acknowledge the value or press ESC to leave the setup unchanged. 3.2.10 Setup MS sensor YES/NO

(only for option MS) This menu allows selecting if the actual engine should be measured using the LEMAG MS-sensor (multi-scan sensor, 1 deg CA physical resolution):

MANUAL SETUP

MS SENSOR: YES ?






3.2.11 Setup firingorder (only for option XL or MS)

The PREMET C can automatically calculate the TDC position of every cylinder with relation to the TDC/MS sensor signal. For this it needs to know the position of every cylinder in the firing order of the engine:

MANUAL SETUP

FIRINGORDER

Position: 01 Cylinder: 01 ?

Use UP and DOWN keys to change the highlighted position. Press ENTER to acknowledge the value or press ESC to leave the setup unchanged. After finishing of the input of the firingorder the instrument asks if the user wants the automatic calculation of the individual TDC deviations of each cylinder TDC with relation to the TDC/MS sensor signal:

MANUAL SETUP

DO YOU WANT AUTOMATIC CALC. OF TDC DEVIATION

OF ALL CYL NO

If the user selects YES the instrument will calculate the TDC position of every cylinder automatically based on the number of cylinders, 2/4-stroke, line/vee and firing order. If the user selects NO the individual TDC positions have to be inserted manually: 3.2.12 Setup TDC deviation

(only for option XL or MS)

MANUAL SETUP

TDC deviation

Cylinder: 01 Deviation: 000.0 ?






3.2.13 Setup bore diameter (only for option XL or MS)

For the calculation of the indicated power the PREMET C needs the cylinder bore:

MANUAL SETUP

CYLINDER BORE

IS: 0100 mm ?

Use UP and DOWN keys to change the highlighted position. Press ENTER to acknowledge the value or press ESC to leave the setup unchanged. 3.2.14 Setup stroke length

(only for option XL or MS) For the calculation of the indicated power the PREMET C needs the stroke length:

MANUAL SETUP

STROKE LENGTH

IS: 0120 mm ?

Use UP and DOWN keys to change the highlighted position. Press ENTER to acknowledge the value or press ESC to leave the setup unchanged. 3.2.15 Setup conrod length

(only for option XL or MS) For the calculation of the indicated power the PREMET C needs the length of the connecting rod (between centre of big end and small end bearing):

MANUAL SETUP

CONROD LENGTH

IS: 0120 mm ?






3.2.16 Setup TDC correction (only for option XL or MS)

For correct calculation of the indicated power the PREMET C needs the correct TDC position of all cylinders. If the TDC/MS sensor is not accurately adjusted it is possible to electronically shift the TDC position of all cylinders with relation to the TDC/MS sensor signal:

MANUAL SETUP

TDC CORRECTION

IS: +000.0 deg CA

Use UP and DOWN keys to change the highlighted position. Press ENTER to acknowledge the value or press ESC to leave the setup unchanged. 3.2.17 Setup Average curve

(only for option XL or MS) The stored pressure curve of every cylinder can be an average curve of all the strokes of the individual cylinder or the pressure curve of the last measured stroke:

MANUAL SETUP

AVERAGE CURVE:

YES

Use UP and DOWN keys to change the highlighted position. Press ENTER to acknowledge the value or press ESC to leave the setup unchanged. 3.2.18 Setup Fuel sensor

(only for option FUEL) In this menu it is possible to select if the injection pressure sensor should be used for the measurement:

MANUAL SETUP

FUEL SENSOR: YES ?






3.2.19 Setup ACL sensor (only for option ACL)

In this menu it is possible to select if the vibration sensor ACL should be used for the measurement:

MANUAL SETUP

ACL SENSOR: YES ?


3.3 Menu point SETUP CLOCK The PREMET C contains an internal clock with a backup battery. Over longer time periods the internal clock may differ from other clocks and may need to be corrected. For this purpose the menu point SETUP CLOCK exists. 3.3.1 Setup hour Setup the hour 0...23 by using the UP and DOWN keys and accept with ENTER:

MANUAL SETUP

SETUP TIME: HOUR

16 ESC UP DOWN ENTER

3.3.2 Setup minute Setup the minute 0...59 by using the UP and DOWN keys and accept with ENTER:

MANUAL SETUP

SETUP TIME: MINUTE






3.3.3 Setup second Setup the seconds 0...59 by using the UP and DOWN keys and accept with ENTER:

MANUAL SETUP

SETUP TIME: SECONDS:


3.3.4 Setup year Setup the year 2009...2099 by using the UP and DOWN keys and accept with ENTER

MANUAL SETUP

SETUP DATE: YEAR


3.3.5 Setup month Setup the month 1...12 by using the UP and DOWN keys and accept with ENTER:

MANUAL SETUP

SETUP DATE: MONTH


3.3.6 Setup day Setup the day 0...31 by using the UP and DOWN keys and accept with ENTER:

MANUAL SETUP

SETUP DATE: DAY:






4 Menu point SCAN ENGINE This menu point is used to start the measurement. Before starting the measurement the user has to select the ship (1...5) :

SCAN ENGINE


Now choose the engine of the ship which should be measured:

SCAN ENGINE

MAINENG 1 - select engine 1 MAINENG2 - select engine 2 AUXENG1 - select engine 3 AUXENG2 - select engine 4 AUXENG3 - select engine 5 AUXENG4 - select engine 6

Finally the user has to select if all cylinders should be measured in a sequence (ALL CYLINDERS) or if single cylinders should be measured (SINGLE CYLINDER):






The following screen will be displayed:

Now the first cylinder can be prepared. Open the valve for a short time to clean the indicator channel. After closing the indicator cock, mount the PREMET on the indicator cock and open the valve. After pressing the ACK button the measuring will start and the instrument will show

If the indicator cock is not open you will receive the following information:





If the measurement was successful the PREMET will display:

Close the indicator valve and remove the PREMET. Press ENTER to change to the next cylinder. Carry out the measurement as before with cylinder 1. Measure cylinders in the order 1, 2, 3 etc, not the firing order!





5. Menu point ANALYSE DATA This menu point is used to analyse stored measurements. Before starting the analysis the user has to select the ship (1...5):

ANAYLSE DATA


Now choose the engine of the ship which should be analysed:

ANALYSE DATA

MAINENG 1 - select engine 1 MAINENG2 - select engine 2 AUXENG1 - select engine 3 AUXENG2 - select engine 4 AUXENG3 - select engine 5 AUXENG4 - select engine 6

Next the year of the measurement should be selected:

Load File Select year : 2009 2010

Select the year and press ENTER Now the month has to be selected.

Load File Select Month : 8 9 10





Select the month and press ENTER Now the measurement has to be selected.

Load File Select file : 09081328.LS 09081734.LS

Select the file and press ENTER

ANALYSE DATA All CYLINDERS SINGLE CYLINDER

Select the choice and press ENTER The instrument will show the selected measurement.

The following picture appears, after pressing the ENTER button The next picture will show you the bar graphs. Then after pressing the ENTER button the next Cylinder will be shown.





To choose SINGLE CYLINDER select the Cylinder by pressing the UP and DOWN button and press ENTER.

ANALYSE DATA ALL CYLINDERS SINGLE CYLINDER

Now the measured cylinder will be shown.





6. Menu point DELETE DATA This menu point is used to delete stored measurements. Before starting the deletion the user has to select the ship (1...5) :

DELETE DATA

DELETE SHIP - select DELETE SHIP if you want to delet a ship

DELETE ENGINE - select DELETE ENGINE if you want to delete an engine

DELETE MEASUREM - select DELETE MEASUREM if you want to delete a measurement

You have to do it in the same way you select measurements for analysing. Select the Ship, Engine or Measurement which you want to delete in the same way you did for ANALYSING DATA and press ENTER.





7. Menu point CHECK TDC SENSOR (only for option XL or MS)

This menu point is used to check the functioning of the crank angle sensors TDC/MS.

CHECK TDC SENSOR

statically dynamically Count INC pulses

The sub menu statically is intended to allow a check of the wiring of the TDC/MS sensor while slow turning the engine. The submenu dynamically is intended to check the TDC/MS sensor on a running engine. The submenu count INC pulses is intended to check the number of INC pulses of the MS sensor while slow turning of the engine. 7.1 Menu point CHECK TDC SENSOR, statically (only for option XL or MS) The sub menu statically is intended to allow a check of the wiring of the TDC/MS sensor while slow turning the engine:

CHECK TDC SENSOR

Status of inputs: TDC: OFF INC: OFF

Input TDC: OFF -> no target in front of TDC sensor, LED on TDC sensor is OFF Or no slot in front of MS sensor, TDC LED on MS sensor is OFF Input TDC: ON -> target in front of TDC sensor, LED on TDC sensor is ON

Or slot in front of MS sensor, TDC LED on MS sensor is ON Input INC: OFF -> no slot in front of MS sensor, INC LED on MS sensor is OFF Input INC: ON -> slot in front of MS sensor, INC LED on MS sensor is ON This function runs until the user presses the ESC key.





7.2 Menu point CHECK TDC SENSOR, dynamically (only for option XL or MS) The submenu dynamically is intended to check the TDC/MS sensor on a running engine:

CHECK TDC SENSOR

Measure RPM Status: wait RPM: 0000.0

This function automatically scans the TDC sensor input. If there is no signal for 3 seconds the status shows: no signal and the rpm is set to 0000.0 rev/min. If there is a speed signal the RPM is set to the actual engine speed. If the PREMET has the option MS and a MS sensor is connected the status shows the number of INC pulses / revolution. If the number of INC pulses / revolution differs from 360 pulses the MS sensor should be checked. This function runs until the user presses the ESC key. 7.3 Menu point CHECK TDC SENSOR, count INC pulses (only for option MS) The submenu count INC pulses is intended to check the number of INC pulses of the MS sensor while slow turning of the engine:

CHECK TDC SENSOR

Count INC pulses Status: wait TDC INC: 000

This function waits for the first occurrence of the TDC signal (status: wait TDC). If the TDC signal occurred the status changes to status: measuring and the number of INC pulses are updated. If the next TDC pulse appears the measurement is stopped (status: finished). The number of INC pulses should be 360. Otherwise the MS sensor should be checked. This function runs until the user presses ESC.





8. Menu point CALIBRATE This menu is intended to let the user to statically check the calibration of the cylinder pressure sensor. Also service functions with relation to instrument calibration are located here. These functions are only accessible for LEHMANN & MICHELS:

CALIBRATE

Check calibration New calibration Temp calibration Volt calibration Fuel calibration Set serialnumber

8.1 Menu point CALIBRATE, check calibration This menu is intended to allow the user to statically check the calibration of the cylinder pressure sensor:

CHECK CALIBRATION

Apply test pressure Then press ENTER

Apply a known test pressure, for example 100 bar. Then press the ENTER key if the test pressure is stable.

CHECK CALIBRATION

Ubat = 7,75 Volt Temp= 20 degC Apply 0 bar

Then press ENTER

The instrument shows the battery voltage and the internal temperature. Now release the pressure as soon as possible and press the ENTER key as soon as possible:

CHECK CALIBRATION

Pressure = 100.5 bar Press any key

The shown pressure should not deviate more than 1.6 % from the known test pressure. Otherwise the instrument should be returned to LEHMANN & MICHELS for recalibration.





9. Menu point CONNECT TO USB-PC The setup information for ships and engines as well as all measurements are stored in the PREMET C. The data will not be not lost if the PREMET C battery is empty or if it is removed. For more in depth analysis the measurements can be transmitted to a PC connected via USB 2.0. To ease this operation the PREMET C acts like an external mass storage device (USB stick). There is no need to install a device driver for the PREMET C if using it with Windows XP,VISTA and later editions. Carry out the following steps to access to the PREMET C measurements:

1. Connect the PREMET C via USB to a PC or Laptop. 2. Select CONNECT TO USB-PC from the main menu:

Press ENTER. The PREMET C will show the following screen:

- return to MAIN MENU - connect the device to USB





If the PREMET C is connected to the PC an additional drive will be shown:

This drive ( PREMET_C G: ) can be used to get access to the measurements of the PREMET C.

Attention! The drive (here G:) is assigned by Windows and can be different on your computer.

To disconnect the PREMET C from your computer, either use the Windows function for disconnecting external USB devices or press a key on the PREMET C.

Attention! Do not disconnect or press any key on the PREMET C during Read or Write operations.

Attention! No directories on the PREMET C should be deleted using the PC. Measurements deleted on the PREMET C cannot be recovered.





If you select the PREMET_C (G:) the following screen will appear:

Select a SHIP to see the individual engines





Select the engine you want to analyse.

Select the year when the measurement was taken.





Then select the month to show the measurements.





If you are using the WPREMET software to open a measurement on the PREMET C, please you the menu function Analyse:

Select the correct ship and then the engine:





Select the year and month of the measurement:

Finally select the measurment file:

The file will open and can be analysed. The data file can be copied or moved from the PREMET C to the PC using the Windows Explorer.





10. Final Note We hope this instruction book will help you use our electronic PREMET® indicator to its full potential. We are sure that you will soon discover how easy it is to handle our instrument and discover how essential the engine data is. Please do not hesitate to contact us if you have any questions, requests or suggestions. Your knowledge and experience is vital to us.

premet c 1.11

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