Aim MyChron5 660 Manuale utente
User Manual
MyChron5 660 –660
Release 1.00
1
INDEX
1 –MyChron5 660 in a few words 2
2 –What is in the kit 3
3 –Installation, connections and powering 4
3.1 –Installing MyChron5 660 4
3.2 –Installing the RPM wire 4
3.3 –Installing Exhaust Gas thermocouple 5
3.4 –Installing the Cylinder Heat Thermocouple 6
3.5 –Installing the speed sensor 7
3.6 –Connecting MyChron5 660 to sensors and LCU-One CAN expansion 8
3.7 –Powering MyChron5 660 10
4 –MyChron5 660 keyboard and configuration 11
4.1 –Configuration Wizard 12
4.2 –Configuration Menu 13
4.2 –Backlight 14
4.3 –System Settings 15
4.3.1 –Drive Setup 16
4.3.2 –RPM Setup 16
4.3.3 –Unit of measure 17
4.3.4 –LED Setup 17
4.3.5 –System Info 18
4.4 –Engine Pass Counters 18
4.5 –Date time 19
4.6 –Wi-Fi 19
4.7 –Language 20
4.8 –Configuration Wizard (see paragraph 4.1) 20
4.9 –Clear memory 20
5 –Data Recall 21
6 –Connection to the PC 22
7 –Data download and Analysis 24
8 –W-Fi Configuration 25
8.1 –Configuring MyChron5 660 as an Access Point (AP) 28
8.2 –Adding MyChron5 660 to an existing network 31
8.3 –Wi-Fi network settings 33
8.4 –The Internet connectivity 34
8.5 –Connection issues 34
8.6 –Working on MacTM with virtualized WindowsTM 35
8.7 –Connected device visualization issues 37
9 –Firmware and software upgrading 38
10 –Technical specifications and drawings 39
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1 –MyChron5 660 in a few words
MyChron5 660 is the new AiM system properly designed and developed for dragsters with integrated GPS Module. It features:
•1 speed input
•2 temperature inputs for cylinder head and exhaust gas thermocouple
•2 configurable alarm LEDs
•5 RGB LEDs configurable as shift lights or alarm
•4 Gb internal memory
•Lithium rechargeable battery
Is MyChron5 660 an expandable logger?
Yes, MyChron 5 660 can be connected to AiM LCU-One CAN and no configuration is needed. MyChron5 660 detects it at the
only condition that the connection is made before switching the logger on.
Which data does MyChron5 660 samples and records?
MyChron5 660 samples and records 50 times per second (50 Hz) Engine RPM, wheel speed in MPH (calculated by jackshaft, RPS
and final jackshaft RPM). All data can be downloaded to a PC and analysed through Race Studio Analysis software, freely
downloadable from www.aim-sportline.com sw/fw download section.
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2 –What is in the kit
MyChron5 660 kit includes:
•MyChron5 660 (1)
•CAN Extension Module (2)
•Dragster split cable (3)
•Phonic wheel kit (4) made up of Teflon and composed of two parts: an internal ring that includes 4 magnets and an external
bushing that protects the internal ring. The external bushing is fixed to the internal ring using two hex screws.
•Magnetic wheel speed sensor with nuts (5) composed of a sensing end inside the brass threaded cylinder and a 250mm
(10”) long cable
•Cylinder head thermocouple (6)
•Exhaust gas thermocouple (7)
•USB Cable (8)
•Battery charger with cable (9)
PHOTO OF THE KIT
Each item can be bought separately as spare part with the following part numbers:
•CAN Extension Module X08EXCAN00
•Dragster split cable V05CCB04MDR
•Phonic wheel kit for dragster DNKTRF660
•Magnetic wheel speed sensor XSMSNVB301
•Cylinder head thermocouple X05SOT14A4516MS
•Exhaust gas thermocouple 3CVGAS807
•USB Cable X90TMPC000
•Battery charger with cable available with four different plugs:
oEuropean plug X06AHB068
oUK plug X06AHB069
oUSA plug X06AHB070
oAustralian plug X06AHB071
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3 –Installation, connections and powering
Each item of the kit needs to be carefully installed, MyChron5 660 first. Incorrect installation may result in system malfunction.
3.1 –Installing MyChron5 660
MyChron5 660 allows the mechanics to set up the engine carburetion immediately before the race. For this reason it is
important to install it in a place where the mechanics can see its display while working on the dragster engine. A commonly used
position is the metal bulkhead which separates the racer’s seat from the engine. AiM recommends to install MyChron5 660
under the engine ON/OFF switch.
As shown here above on the right the logger needs a bracket. Use an aluminium or steel self-made bracket a 0.1”(2.5 mm)
thickness so to resist the vibration when the engine is on. Firmly fix the bracket to the vertical bulkhead and then fix MyChro5
660 to the bracket. Please be careful not to overtighten the mounting nut; this can cause damage to the display unit case.
3.2 –Installing the RPM wire
RPM wire needs to be connected to the dragster ON/OFF switch. The switch is in most cases a 2 poles (some switches only are a
1 pole). The two poles are RPM and coil. RPM wire should be going to the coil side of the kill switch. Running it to the grounded
side of the switch causes RPM signal to drop in and out and sometimes not to work at all. Being the ON/OFF switch opposite of
the bulkhead drill a 0.2”(5mm) hole inside the bulkhead and remember to insert the rubber wire-holder in the hole to protect
RPM wire from tears and cuts.
AiM recommends to keep RPM wire as far as possible from temperature ones while connecting the first to MyChron5
660. If RPM and temperature wires are wrapped together temperature channels might be noisy.
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3.3 –Installing Exhaust Gas thermocouple
Install EGT (Exhaust Gas Thermocouple) inside the exhaust header pipe at a distance of approximately 5.9” (150 mm) from the
exhaust port and between 25% and 50% inside the exhaust gas header. For a correct installation follow these steps:
•drill a 0.2”(5mm) hole inside the exhaust header
•fix the metal wrapper to the exhaust header pipe in the hole you have drilled; please remember: pipe hole and wrapper
threaded must be coaxial
•screw EGT thermocouple in the wrapper nut and firmly fix it. Plug the thermocouple male Mignon connector to the EGT
input wire of the “dragster split cable”
EGT thermocouple can also be installed using a steel adapter to be welded to the exhaust header following these steps:
•drill a 0.4”hole inside the exhaust header (1)
•weld EGT adapter inside the hole (2)
•screw the EGT thermocouple inside the EGT adapter (3)
•plug the EGT thermocouple male Mignon connector to the EGT input wire of the 2 temperatures split cable (part number
V02CCB04MDR).
Here below is an EGT thermocouple installed on the right and an installation with steel adapter on the right.
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3.4 –Installing the Cylinder Heat Thermocouple
To install the cylinder head thermocouple:
•remove the spark plug washer
•insert the sensor
•tighten the sensor but be careful to minimise movement in order to avoid damage.
•plug the thermocouple male Mignon connector to the sensor 2 temperatures split cable (part number V02CCB04MDR).
The image here below shows a cylinder head thermocouple correctly installed.
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3.5 –Installing the speed sensor
To sample the dragster speed a magneto-resistive speed sensor (part number XSMSNVB301) is to be installed at a 4-8 mm
distance from the phonic wheel (part number DNKTRF660) that is to be installed on the jackshaft (3/4” diameter) moved by the
clutch. The movement of jackshaft and wheel are related to the crown/pinion ratio.
The scheme below shows the layout of the installation.
To correctly install the speed kit, follow these steps:
•remove the pinion and insert the phonic wheel (internal diameter ¾”) on the jackshaft.
•fix the phonic wheel to the jackshaft screwing the nut.
•install the magneto-resistive speed sensor on a self-made bracket; please remember that sensing distance –the distance
between the sensor and the phonic wheel –is to be 4-8mm (0.15”-0.3”)
•plug the speed sensor male connector in the 4 pins Binder 712 female connector rear of MyChron5 660 highlighted here
below.
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3.6 –Connecting MyChron5 660 to sensors and LCU-One CAN expansion
To connect MyChron5 660 to the temperature sensors included in the kit:
•connect the 5 pins Binder 712 male connector of the dragster split cable to the 7 pins Binder 712 female connector placed
top rear of the logger.
•connect exhaust gas temperature thermocouple mignon male connector to one of the two mignon female connector of the
dragster split cable.
•connect cylinder head temperature thermocouple mignon male connector to the other mignon female connector of the
temperature split cable.
•connect the 4 pins Binder 712 male connector of the speed sensor to the 4 pins Binder 712 female connector placed central
rear of the logger.
•connect 5 pins Binder 712 male connector of CAN Extension Module to 5 pins Binder 712 female connector placed bottom
rear of MyChron5 660.
•connect 5 pins Binder 712 male connector of LCU-One CAN to 5 pins Binder 712 female connector of CAN Extension.
Please remember to always keep RPM wire well separated from thermocouples cables in order to minimize
interferences.
Here below is a complete connection schematic.
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