Omega Vehicle Security 850i Feature #28, Feature #29 Tach Wire or Tachless Starter Operation

The Last Door Arming feature may include, if desired, the automatic locking of the vehicle’s doors when the system arms itself.*

The Last Door Arming process:

1- When the vehicle’s ignition has been turned off, the system waits until a door is opened. When the door is closed, or when the last door is closed when more than one door is opened, the siren will chirp twice, the parking lights will flash twice, and the Status Light will begin flashing Red rapidly. The Last Door Arming countdown has begun.

2- Thirty seconds later the siren will again chirp twice, the parking lights will again flash twice, the starter interrupt will engage, and the Status Indicator Light will begin flashing Red slowly. If programmed , the vehicle’s doors will also lock.* Three seconds after these actions occur, the system is fully armed.

Notes:

•If the remote transceiver was last used to operate the system, when Last Door Arming is used to arm the system the transceiver will chirp twice and show the “ARM” icon when system becomes fully armed 30 seconds after the last door is closed. If the doors are programmed to also lock*, the “locked” icon will also appear when this occurs.

•If a door is reopened during the thirty second period between the first and second set of double chirps, the countdown will stop and reset. When the reopened door is closed again, the 30 second countdown starts over again at the beginning.

•Last Door Arming is separate from, and does not effect the operation of arming by using the transmitter or transceiver.

•All protected points must be closed or otherwise in a non-violated state for the Last Door Arming sequence to start. Unlike active arming from the transmit- ter or transceiver, the system can not bypass an open or detected zone and arm itself.

To temporarily prevent the system from arming itself:

•Place the system into Alarm Valet Mode using the Valet Switch (pages 23-24).

•Leave a vehicle door open. Although this varies depending on the vehicle, in most cases turning on the interior light will be detected by the system as an open door.

•Although the system will not Last Door Arm while the ignition is on, leaving the ignition key turned on without the engine running is not recommended.

*An optional doorlock interface must be installed

button to configure the system for gasoline engines (the siren will chirp once) or the "Disarm/Unlock" button to configure the system for diesel engines (the siren will chirp twice).

Feature #28	Extended Starter Cranking Time
	(Factory Default Setting Minimum)

This feature operates in conjunction with the next feature’s “Tachless” setting. The Crime Guard 850i4e’s processor is capable of detecting the running engine by two separate methods- the use of the vehicle’s tachometer (“tach”) wire for a direct engine RPM input, or by monitoring the fluctuating voltage levels caused by the starting process. This feature sets the duration of the starter output’s base timing for the voltage sensing type of starter output operation. There are four different base starter output time durations.

Programming Extended Starter Output Time:

Follow Steps 1 to 4 on page 28; at Step 4 the Valet Switch will be pressed and released twenty eight times. The system’s response will be twenty eight siren chirps, and the Status Light flashing twenty eight times, pausing, then repeating. Within 10 seconds, press and release the transmitter/transceiver’s button for one of these Extended Starter Output Times settings:

"Arm/Lock" button	= minimum (.7 second)		(one siren chirp)
"Disarm/Unlock" button	= low medium (1.25 seconds) (two siren chirps)
“ II” button	=	high medium (1.75 seconds) (three siren chirps)
“ III” button	=	maximum (2.5 seconds)	(four siren chirps)

The default-set minimum is sufficient for most vehicles; the Extended Starter Cranking Time can be used for difficult-to-start engines.

Feature #29 “Tach Wire” or “Tachless” Starter Operation

(Factory Default “Tachless”)

This feature selects the system’s method of detecting the starting and running of the engine during remote start operation. “Tachless” mode engages the starter for a predetermined time (previous feature), during which it is monitoring voltage changes in order to release the starter. While the Tachless method is adequate for most vehicles, the “Tach Wire” connection is the most reliable form of engine running information input, and its use is recommended. The Tach Wire option has a set 3 second starter cranking time, during which it is directly monitoring the engine’s RPM to release the starter when the engine runs. To use this feature, the system’s tach input wire must be connected, and a tach learning process followed.

Programming the Tach Wire or Tachless feature:

Prior to programming this feature, please refer to the “Installation Manual” for proper wiring connection and the Tach Learning Procedure, both of which are

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