EXXOTEST DTM7000 User Manual Download

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Vehicle training equipment

User’s guide for DTM7000

Set of 9 training modules:

LIGHTING & SIGNALLING SYSTEMS

Summary of Contents for DTM7000

Page 1: ...Vehicle training equipment User s guide for DTM7000 Set of 9 training modules LIGHTING SIGNALLING SYSTEMS...

Page 2: ...taken from DIN 72 552 6 Connections 6 Electrical circuit components 8 Fuse 9 Diodes 10 Transistors 10 Consumers 12 Relays 12 3 DETAILS OF THE DTM7000 SERIES OF MODULES 13 Module DTM7001D 13 Module DT...

Page 3: ...orkshop Classroom the noise generated will not exceed 70 dBA Modules are protected from potential user errors Calibration maintenance of all DTM7000 modules Calibration Factory Settings Servicing inte...

Page 4: ...circuit the flow of current is controlled by the following two rules The lower the resistance the greater the current flowing through the circuit The higher the voltage the higher the current flowing...

Page 5: ...als of the component to be tested The following precautions must be taken during use The device should never be connected to an external power supply Components to be measured must be disconnected fro...

Page 6: ...hicles Capacity in Ah Ampere Hours i e the number of amps which can be consumed for a period of one hour before the battery is fully discharged Caution with a half charged battery it may prove difficu...

Page 7: ...erature probe HV coil etc used by PSA and Renault Female connector 9 15 way leak tight powered ventilation control unit etc used by PSA Bulkhead connector 10 14 23 way leak tight used by PSA 15 25 35...

Page 8: ...c 00293978 v1 Electrical circuit components Connecting multi strand copper wires of various cross sections depending on current The resistance within the circuit depends on Length Cross section flow T...

Page 9: ...69 63 2 476 Fuse A fuse is a safety device used to protect an electrical circuit from excess current Generally fuses comprise a metal strip which melts at a given temperature If the current flowing th...

Page 10: ...he opposite direction the diode will let current pass but this will damage it rendering it unusable However the Zener diode will permit voltages above a certain level to pass through it in the opposit...

Page 11: ...indestructible No induced currents Very low control current from emitter to base Instant disconnection Can be used as an amplifier Noiseless Each transistor is characterised by its gain This is a coe...

Page 12: ...med is important when dealing with consumers as for a given voltage one can determine the absorbed current Example of the various modules along with their consumers Relays A relay is made up of two pa...

Page 13: ...he rear lighting cluster on the right hand side and includes the indicator rear light fog lamp and brake light Module DTM7001G This module represents the rear lighting cluster on the left hand side an...

Page 14: ...esents the front lighting unit on the left hand side and includes the indicator side light and dipped main beam headlights Connection point for common earth Connector terminals Indicator bulb Front R...

Page 15: ...the first a standard relay the second a polarised relay fitted with a free wheeling diode Connection point for common earth E g Earth 85 86 Control circuit Power circuit 30 common 87a rest position 87...

Page 16: ...etic field which will in turn activate the power circuit 30 or 3 87b or 4 87 or 5 At rest Active Common Power circuit Coil de energized Terminal 30 is connected to Terminal 87b at rest position Coil e...

Page 17: ...Indicator RHS Indicator switch right Module DTM7007 This module represents the hazard warning selector ID Description Functionalities 1 Power supply output for flasher unit module DTM7008 Constant sup...

Page 18: ...nd positive from battery when active 0v System earth Earth C Output to Terminal 7 on the DTM7007 When current is drawn through terminal C to the DTM7007 a square wave signal will be created R Instrume...

Page 19: ...Lighting Signalling modules 19 Site exxotest com 4 WIRING EXAMPLES Wiring example indicator lights...

Page 20: ...DTM7000 20 Doc 00293978 v1 Wiring example indicators and hazard warning lights...

Page 21: ...72 A The safety coefficient used is 1 5 meaning a fuse of at least 5 58 A should be used the next available fuse is 7 5 A making the safety coefficient 2 2 Determining the diameter of the wire for th...

Page 22: ...DTM7000 22 Doc 00293978 v1 Wiring for side lights dipped beams with a relay...

Page 23: ...d to connect an additional set of driving lights assuming they are to be controlled from a relay in the vicinity of the battery approximately 1 2m from the right hand light The earth from the bulbs wi...

Page 24: ...nger and thinner the wire the greater the voltage drop across the terminals How does the voltage change once the circuit has been energised The voltage reaches a peak then first connected then decreas...

Page 25: ...e terminals and the current passing through it by means of a Reflet and MI 25A Display these readings as curves recording the data from the moment of initial energising until the voltage across the wi...

Page 26: ...rrent flow as the lower temperature means a lower resistance At a stable operating temperature both voltage and current stabilise The changing voltage across the test wire terminals is inversely propo...

Page 27: ...Lighting Signalling modules 27 Site exxotest com Propose a method for fitting dipped main beams which causes no operational inconveniences...

Page 28: ...A and turn on the lights What happens The left hand rear light and fog lamp light up dimly Trace the circuit the current is flowing along What can one deduce from the voltage across the bulb terminals...

Page 29: ...108 EC 15 December 2004 and satisfies the requirements of the following standard NF EN 61326 1 dated 07 1997 A1 of 10 1998 A2 of 09 2001 Electrical measurement control and laboratory equipment EMC re...