Engine Tachometers
BATTERY TACHO CDSS6,CDSS6BT (DX211-12, DX211-12BT)
Battery sensing type for Petrol and Diesel Engines
This adapter measures the frequency modulation ripple of the alternator across the battery
terminals, and converts this information into engine speed signal.CDSS6BT and DX211-12BT are
wireless variants
Connections
STATUS LED
ON: Power/Initialising FLASH:
Measurement in progress
SIGNAL OUTPUT
via comms lead DX230-261 (Not
CDSS6BT)
BATTERY CLIPS Red to
battery +VE Black to
battery -VE
CDSS6/CDSS6BT RPM Operation
Ensure the CDSS6 is connected to the host PC via the DX230-261 Comms lead (Not required on
CDSS6BT).
Before starting the vehicle, attach the crocodile clips on CDSS6 power/sensing cable to battery
terminals, ensuring that the polarity is correct.
Start engine, switch on vehicle lights and allow to idle.
The unit will search for a steady speed each time it is powered up, if the engine speed falls or the
engine type is changed. This is the initialisation period and may last up to 17 seconds. During this
time, the status LED will flash slowly and the rpm will read zero.
Once the speed has been detected, readings will appear on the host analyser. The CDSS6
updates 10 readings per second.
Note: Please note that on a small number of vehicles the readings may be unstable, inaccurate or
unreadable. To minimise the risk of this:-
Load the battery as much as possible by doing the
following: Switch on the vehicle headlights/Main beam/
Fog/Spots,
Switch on the heated rear window,
However - Switch off the cabin fan as this can introduce interference.
Keep the engine speed stable during the initialisation time <17Sec.
If, after initialisation the speed is stable but reading incorrectly, change the
cylinder setting on the ‘Tacho Set-up’ screen until the correct value appears.
To Next Page
Loading...
