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Chronoskop CHR-9 Timegrapher 

User manual 

www.CHRONOSKOP.com 

13 

3.2.  Optical Light Barrier measurement 

Optical measurement  is based  on  the  principle  of the  light  barrier.  If the clock  pendulum  or 

the  minute  hand  interrupts  or  reflects  the  light  beam  of  the  transmitter  diode,  the  receiver 

diode of the time scale receives a pulse. Please note that the frequency of the infrared light 

emitted  by  the  diode  is  outside  the  visible  range.  Avoid  strong  extraneous  light  during  the 

measurement. 

Light barrier measurement of the pendulum (internal light barrier) 

Pendulum  clocks  can  be  measured  with  the  optical  light  barrier.  In  order  to  measure  the 

clock with the built-in light barrier, the Timegrapher is to be placed with the outgoing infrared 

LEDs  and  the  supplied  reflector  toward  the  swinging  pendulum,  so  that  the  pendulum 

interrupts  the  invisible  light  beam  (see  picture  bolow).  If  the  invisible  infrared  beam  of  the 

light  barrier  is  interrupted,  the  Timegrapher  registers  an  impulse.  The  reflector  should  be 

aligned as possible directly opposite to the diodes, parallel to the rear wall of the housing. Do 

not  stick  the  reflector  directly  to  the  watch  case.  With  a  reflective  pendulum  you  can  even 

work without the reflector.  

 

 

 

 

 

 

 

 

 

 Light barrier measurement of the pendulum (external light barrier) 

When  using  the  external  light  barrier  place  it  so  that  the  oscillating 

pendulum  passes  through  the  light  barrier  between  the  two  beveled 

ends of the fiber optic columns.  

Optical  measurement  of  the  minute  hand  (external  Licht  Barrier 

Sensor) 

The  external  light  barrier  also  allows  the  measurement  directly  at  the 

minute  hand.  To  do  this,  place  the  light  barrier  so  that  the  pointer 

passes through the light barrier during the hourly cycle.  

 

The external light barrier is an optional accessory and can be ordered necessary. 

Summary of Contents for CHRONOSKOP CHR-9

Page 1: ...CHRONOSKOP CHR 9 Digital watch timing machine Instruction Manual 2017 www CHRONOSKOP com ENGLISH...

Page 2: ......

Page 3: ...K NOT DEFINED 3 5 MENUEAUFBAU 14 3 6 START DER MESSUNG UND DIE SCHALTFL CHEN ERROR BOOKMARK NOT DEFINED 3 7 MESSUNG AUSGABE DER ZAHLENWERTE 16 3 8 MEASUREMENT DIAGRAM VIEW 17 3 9 MESSUNG DIE ZEITACHSE...

Page 4: ...MENT DATA 28 7 PC SOFTWARE CHRONOPORT 2 0 29 7 1 GENERAL FUNCTIONS 29 7 2 SYSTEM REQUIREMENTS 29 7 3 CONNECT THE TIMEGRAPHER 29 7 4 INSTALLATION OF THE SOFTWARE 30 7 5 DIRECT START OF THE APPLICATION...

Page 5: ...of the clock can be measured In a long term measurement the temporal behavior of the rate can be observed on a graph The measurement results are displayed as graphically and as numerical values on th...

Page 6: ...ontrast adjustment knob and a touchpen slot The measurement results can be sent via a USB interface to a PC where they can be saved or printed with the software Chronoport 2 0 All data is constantly s...

Page 7: ...gnal of the radio reciver or heating LED Red Error or incorrect signal during the measuring or calibrating Headphone port Microphone sensitivity adjustment Analog microphone port External digital sens...

Page 8: ...r supply included in the package or our battery pack Commissioning of the unit should be considered in the ambient temperature in which the instrument has been calibrated see chapter calibration The t...

Page 9: ...is the average time between beats Period duration is calculated as follows TP TTIC TTAC 2 The number of beats per hour is called the Beat Number BR 2 2 Beat error If the balance oscillates asymmetrica...

Page 10: ...ss lever escapement consists of three impulses 1 Impuls The lever of the roller hits the fork of the anchor 2 Impuls A tooth of the escape wheel hits the impulse surface of a pallet and the anchor for...

Page 11: ...sitivity of the microphone despite digital filtering ambient noise should be avoided The signal gain can be adjusted with the rotary knob placed in the front wall of the device For very quiet watches...

Page 12: ...s connected to the external power supply are not allowed to be used The crocodile microphone gives a lot of flexibility and is very useful when measuring a clock in different positions It is character...

Page 13: ...that the pendulum interrupts the invisible light beam see picture bolow If the invisible infrared beam of the light barrier is interrupted the Timegrapher registers an impulse The reflector should be...

Page 14: ...ne CAUTION Setting the volume too high may cause hearing damage 3 4 Measurement with external sensors External sensors such as radio receivers or active microphones can be connected to the built in 4...

Page 15: ...ble to switch between the display modes arbitrarily The buttons serve Numerical values view Diagram view Long Time behavior view Impulse analysis view Further buttons are Restart the measurement This...

Page 16: ...tude Temperature of the oscillator T Timing progress beats used for calculation Icons During the measurement in the lower right corner are displayed symbols so called icons which give some information...

Page 17: ...n the display The time between two successive clock beats period duration is measured and compared with the setpoint value If the measured time is exactly equal to the set point the new point on the g...

Page 18: ...he measurement with the time axis The following part shows some examples of errors These are the idealized representations and should be used only for guidance In reality usually several errors occur...

Page 19: ...ash Clock Rate graph in the long term monitoring The graph of the long tern rate monitoring helps you to observe how the rateof the clock behaves for a long time Graphing will restart if any of the fo...

Page 20: ...and can be used to switch between the manual and the automatic detection of the lifting time of the balance This value is decisive for the calculation of the Amplitude The lifting time of the balance...

Page 21: ...t the clock arm measurement in the beat number setting The pointer measurement measures the time periods in which the minute hand traverses the light barrier during the hourly cycle The time of each m...

Page 22: ...ings press OK 4 1 Selection of the menu language Here you can switch between the menu languages stored in the device The following languages are offered English German Spanish French Italian and Polis...

Page 23: ...er is taken from the values stored in the unit These are 3600 6000 7200 9000 12000 14400 17280 18000 19800 21600 27000 28800 and 36000 During measurement in Auto mode an A symbol appears next to the t...

Page 24: ...and averaged If the time integration is switched off only the last seconds are evaluated for the measurement This allows you to regulate the clock during the measurement 4 5 Setting the lifting angle...

Page 25: ...equency of the clock oscillator of the unit varies depending on the room temperature If the measurements have place at room temperature this is negligible However to ensure maximum measurement accurac...

Page 26: ...km in radius around Mainflingen In DCF77 signal is the time of the next minute coded The DCF77 signal is the definition of right time of Germany ATTENTION The reception of the signal is depending on...

Page 27: ...chieved s year In the lower right corner the number of pulses counted The accuracy of each second time signals is dependent of location and environmental factors Therefore the calibration should last...

Page 28: ...ow Version of the software Version of the hardware Frequency of the oscillator Supply voltage Temperature of the oscillator Information about the temperature on selected devices If the device has neve...

Page 29: ...art or to install the software Microsoft Windows Windows 98 SE or higher If the system does not have the latest updates it can happen that Microsoft NET Framework is not included This can be installed...

Page 30: ...application autorun exe from the root directory of the CD The software Chronoport can be downloaded on www chronoskop com Is the MS NET Framework in the system not included it should be installed firs...

Page 31: ...megrapher User manual www CHRONOSKOP com 31 A welcome screen will guide you in the installation Choose a directory for the application to be installed in You can choose where in the Start menu shortcu...

Page 32: ...egrapher User manual www CHRONOSKOP com 32 If all necessary information has been entered choose Next to confirm the start of the installation After installation you can find the shortcut to the progra...

Page 33: ...or select in the window that appears automatically after inserting the CD Run from the CD 7 6 Window structure The main window of Chronoport 2 0 includes three parts a graphical display of the curve r...

Page 34: ...the measurement data including measurement curve in a measure protocol Print Print the measurement protocol Print preview Preview of the measurement protocol Printer setup settings of the printer Exi...

Page 35: ...re connection To start the measurement press the Start button If automatic beat rate detection is set in the first seconds of the measurement in the text box is displayed analyzing followed by dots th...

Page 36: ...arts a graphical display of the curve results in numerical values and text box with messages 7 1 Deinstallation To uninstall the software from your computer please use Uninstall from the Start menu Al...

Page 37: ...www CHRONOSKOP com Timegraphers made by PRELIS LISIT Group 28 08 2018...

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